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#!/usr/bin/perl |
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# |
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# This is the resource agent used to manage servers on the Anvil! Intelligent Availability platform. |
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# |
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# License: GNU General Public License (GPL) v2+ |
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# (c) 1997-2018 - Alteeve's Niche! Inc. |
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# |
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# WARNING: This is a pretty purpose-specific resource agent. No effort was made to test this on an rgmanager |
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# cluster or on any configuration outside how the Anvil! m3 uses it. If you plan to adapt it to |
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# another purpose, let us know and we'll try to help. |
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# |
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# Based on: https://github.com/ClusterLabs/resource-agents/blob/master/doc/dev-guides/ra-dev-guide.asc |
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# |
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# Error types from pacemaker's perspective; |
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# |
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# - Soft Error - Unless specifically configured otherwise, pacemaker will attempt to recover a resource |
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# in-place - usually by restarting the resource on the same node. |
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# - Hard Error - Unless specifically configured otherwise, pacemaker will attempt to recover a resource |
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# which failed with this error by restarting the resource on a different node. |
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# - Fatal Error - This is a cluster-wide error, it would make no sense to recover such a resource on a |
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# different node, let alone in-place. When a resource fails with this error, Pacemaker will |
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# attempt to shut down the resource, and wait for administrator intervention. |
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# |
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# Exit codes; |
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# 0 - OCF_SUCCESS |
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# - The action completed successfully. This is the expected return code for any successful start, stop, |
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# migrate_to, meta_data, help, and usage action. |
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# - For monitor, however, a modified convention applies: |
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# - If the server is running we return, OCF_SUCCESS. If not running and gracefully stopped or migrated |
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# off, return OCF_NOT_RUNNING. |
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# |
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# 1 - OCF_ERR_GENERIC |
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# - The action returned a generic error. This is used only when none of the more specific error codes, |
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# defined below, accurately describes the problem. |
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# - Pacemaker interprets this exit code as a soft error. |
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# |
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# 2 - OCF_ERR_ARGS |
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# - The resource’s configuration is not valid on this machine. This can happen if the serve fails to boot |
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# because of a missing bridge, for example. |
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# |
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# 3 - OCF_ERR_UNIMPLEMENTED |
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# - The resource agent was instructed to execute an action that we do not implement. |
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# - Not all resource agent actions are mandatory. We don't implement 'promote' or 'demote'. We do implement |
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# 'migrate_to', 'migrate_from', and 'notify'. If we're misconfigured as a master/slave resource, for |
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# example, then will alert the user about this misconfiguration by returning OCF_ERR_UNIMPLEMENTED. |
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# |
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# 4 - OCF_ERR_PERM |
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# - The action failed due to insufficient permissions. This may be due to a node not being able to open a |
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# definition file or resource config. |
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# - Pacemaker interprets this exit code as a hard error. |
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# |
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# 5 - OCF_ERR_INSTALLED |
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# - The action failed because a required component is missing on the node where the action was executed. |
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# This may be due to a required binary not being executable, or a the DRBD resource config file not |
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# existing. |
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# - Pacemaker interprets this exit code as a hard error. |
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# |
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# 6 - OCF_ERR_CONFIGURED |
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# - The action failed because the user misconfigured the resource in pacemaker. For example, the user may |
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# have configured an alphanumeric string for a parameter that really should be an integer. |
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# - Pacemaker interprets this exit code as a fatal error. |
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# |
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# 7 - OCF_NOT_RUNNING |
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# - The resource was found not to be running. This is an exit code that may be returned by the monitor |
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# action exclusively. Note that this implies that the resource has either gracefully shut down, or has |
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# never been started. |
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# |
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# 8 - OCF_RUNNING_MASTER |
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# 9 - OCF_FAILED_MASTER |
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# - These OCF exit codes are not used here. |
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# |
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# NOTE: We don't use Anvil::Tools to keep overhead low and to keep this agent independent as possible. |
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use strict; |
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use warnings; |
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use XML::Simple; |
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use JSON; |
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use Math::BigInt; |
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use Data::Dumper; |
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# Turn off buffering so that the pinwheel will display while waiting for the SSH call(s) to complete. |
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$| = 1; |
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my $THIS_FILE = ($0 =~ /^.*\/(.*)$/)[0]; |
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my $running_directory = ($0 =~ /^(.*?)\/$THIS_FILE$/)[0]; |
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if (($running_directory =~ /^\./) && ($ENV{PWD})) |
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{ |
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$running_directory =~ s/^\./$ENV{PWD}/; |
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} |
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my $conf = { |
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'log' => { |
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facility => "local0", |
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level => 2, |
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line_numbers => 1, |
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tag => "ocf:alteeve:".$THIS_FILE, |
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}, |
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# If a program isn't at the defined path, $ENV{PATH} will be searched. |
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path => { |
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config => { |
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definition => "/mnt/anvil/definitions/#!NAME!#.xml", |
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}, |
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exe => { |
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brctl => "/usr/sbin/brctl", |
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cibadmin => "/usr/sbin/cibadmin", |
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crm_error => "/usr/sbin/crm_error", |
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drbdadm => "/usr/sbin/drbdadm", |
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drbdsetup => "/usr/sbin/drbdsetup", |
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echo => "/usr/bin/echo", |
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free => "/usr/bin/free", |
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getent => "/usr/bin/getent", |
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logger => "/usr/bin/logger", |
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stonith_admin => "/usr/sbin/stonith_admin", |
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virsh => "/usr/bin/virsh", |
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}, |
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}, |
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environment => { |
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# This is the name of the server we're managing. # Example values: |
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OCF_RESKEY_name => defined $ENV{OCF_RESKEY_name} ? $ENV{OCF_RESKEY_name} : "", # srv01-c7 |
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# This is our node name |
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OCF_RESKEY_CRM_meta_on_node => defined $ENV{OCF_RESKEY_CRM_meta_on_node} ? $ENV{OCF_RESKEY_CRM_meta_on_node} : "", # m3-a02n01.alteeve.com |
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# This says "UUID", but it's the node ID. |
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OCF_RESKEY_CRM_meta_on_node_uuid => defined $ENV{OCF_RESKEY_CRM_meta_on_node_uuid} ? $ENV{OCF_RESKEY_CRM_meta_on_node_uuid} : "", # 1 |
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# This is the timeout for the called action in millisecond. |
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OCF_RESKEY_CRM_meta_timeout => defined $ENV{OCF_RESKEY_CRM_meta_timeout} ? $ENV{OCF_RESKEY_CRM_meta_timeout} : "", # 20000 |
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# If this is set, we'll bump our log level as well. |
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PCMK_debug => defined $ENV{PCMK_debug} ? $ENV{PCMK_debug} : "", # 0 |
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# These are other variables that are set, but we don't currently care about them |
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OCF_EXIT_REASON_PREFIX => defined $ENV{OCF_EXIT_REASON_PREFIX} ? $ENV{OCF_EXIT_REASON_PREFIX} : "", # ocf-exit-reason: |
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OCF_RA_VERSION_MAJOR => defined $ENV{OCF_RA_VERSION_MAJOR} ? $ENV{OCF_RA_VERSION_MAJOR} : "", # 1 |
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OCF_RA_VERSION_MINOR => defined $ENV{OCF_RA_VERSION_MINOR} ? $ENV{OCF_RA_VERSION_MINOR} : "", # 0 |
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OCF_RESKEY_crm_feature_set => defined $ENV{OCF_RESKEY_crm_feature_set} ? $ENV{OCF_RESKEY_crm_feature_set} : "", # 3.0.12 |
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OCF_RESOURCE_INSTANCE => defined $ENV{OCF_RESOURCE_INSTANCE} ? $ENV{OCF_RESOURCE_INSTANCE} : "", # srv01-c7 |
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OCF_RESOURCE_PROVIDER => defined $ENV{OCF_RESOURCE_PROVIDER} ? $ENV{OCF_RESOURCE_PROVIDER} : "", # alteeve |
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OCF_RESOURCE_TYPE => defined $ENV{OCF_RESOURCE_TYPE} ? $ENV{OCF_RESOURCE_TYPE} : "", # server |
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OCF_ROOT => defined $ENV{OCF_ROOT} ? $ENV{OCF_ROOT} : "", # /usr/lib/ocf |
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}, |
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}; |
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# If pacemaker is in debug, so are we, |
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if ($conf->{environment}{PCMK_debug}) |
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{ |
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$conf->{'log'}{level} = 3; |
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} |
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# Find executables. |
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find_executables($conf); |
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# Get any command line switches. |
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get_switches($conf); |
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### TEST: to be removed later |
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if ($conf->{switches}{test}) |
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{ |
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$conf->{environment}{OCF_RESKEY_name} = "srv01-c7"; |
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$conf->{environment}{OCF_RESKEY_CRM_meta_on_node} = "m3-a02n01.alteeve.com"; |
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$conf->{environment}{OCF_RESKEY_CRM_meta_timeout} = 20000; |
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} |
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# Something for the logs |
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to_log($conf, {message => "ocf:alteeve:server invoked.", 'line' => __LINE__, level => 2}); |
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# This is for debugging. |
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show_environment($conf, 2); |
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### What are we being asked to do? |
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# start - Starts the resource. |
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# stop - Shuts down the resource. |
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# monitor - (status aliases here) Queries the resource for its state. |
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# meta-data - Dumps the resource agent metadata. |
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# promote - Turns a resource into the Master role (Master/Slave resources only). |
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# demote - Turns a resource into the Slave role (Master/Slave resources only). |
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# migrate_to - migration target |
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# migrate_from - Implement live migration of resources. |
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# validate-all - Validates a resource’s configuration. |
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# help - (usage maps here) Displays a usage message when the resource agent is invoked from the command line, rather than by the cluster manager. |
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# notify - Inform resource about changes in state of other clones. |
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if ($conf->{switches}{start}) |
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{ |
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# Start the server |
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start_server($conf); |
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} |
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elsif ($conf->{switches}{stop}) |
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{ |
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# Stop the server |
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stop_server($conf); |
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} |
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elsif (($conf->{switches}{monitor}) or ($conf->{switches}{status})) |
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{ |
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# Report the status of the server. |
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server_status($conf); |
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} |
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elsif (($conf->{switches}{metadaata}) or ($conf->{switches}{'meta-data'})) |
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{ |
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show_metadata($conf); |
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} |
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elsif ($conf->{switches}{promote}) |
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{ |
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# We don't support this, so we return OCF_ERR_UNIMPLEMENTED (3) |
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to_log($conf, {message => "We were asked to promote: [".$conf->{environment}{OCF_RESKEY_name}."], which makes no sense and is not supported. Ignoreing.", 'line' => __LINE__, level => 0, priority => "err"}); |
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exit(3); |
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} |
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elsif ($conf->{switches}{demote}) |
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{ |
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# We don't support this, so we return OCF_ERR_UNIMPLEMENTED (3) |
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to_log($conf, {message => "We were asked to demote: [".$conf->{environment}{OCF_RESKEY_name}."], which makes no sense and is not supported. Ignoreing.", 'line' => __LINE__, level => 0, priority => "err"}); |
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exit(3); |
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} |
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elsif (($conf->{switches}{migrate_to}) && ($conf->{switches}{migrate_from})) |
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{ |
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# We don't support this, so we return OCF_ERR_UNIMPLEMENTED (3) |
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migrate_server($conf); |
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} |
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elsif ($conf->{switches}{'validate-all'}) |
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{ |
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# Validate our local config and setup. |
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validate_all($conf); |
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exit(0); |
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} |
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elsif (($conf->{switches}{help}) && ($conf->{switches}{usage})) |
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{ |
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# Show the usage information |
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show_usage($conf); |
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exit(0); |
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} |
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elsif ($conf->{switches}{notify}) |
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{ |
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# We don't implement this |
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to_log($conf, {message => "We were asked to notify, but this is not a promotable (we're stateless) agent. Ignoring.", 'line' => __LINE__, level => 0, priority => "warn"}); |
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exit(3); |
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} |
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else |
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{ |
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# We were called in some unexpected way. Log an error, show usage and exit. |
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show_environment($conf, 0); |
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to_log($conf, {message => "We were invoked with an unexpected (or no) command. Environment variables and arguments below.", 'line' => __LINE__, level => 0, priority => "warn"}); |
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exit(1); |
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} |
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# If we hit here, something very wrong happened. |
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exit(255); |
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############################################################################################################# |
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# Functions # |
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############################################################################################################# |
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=cut |
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STATES |
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The State field lists what state each domain is currently in. A domain can be in one of the following |
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possible states: |
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running - The domain is currently running on a CPU |
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idle - The domain is idle, and not running or runnable. This can be caused because the domain is |
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waiting on IO (a traditional wait state) or has gone to sleep because there was nothing else |
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for it to do. |
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paused - The domain has been paused, usually occurring through the administrator running virsh suspend. |
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When in a paused state the domain will still consume allocated resources like memory, but will |
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not be eligible for scheduling by the hypervisor. |
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in shutdown - The domain is in the process of shutting down, i.e. the guest operating system has been |
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notified and should be in the process of stopping its operations gracefully. |
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shut off - The domain is not running. Usually this indicates the domain has been shut down completely, or |
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has not been started. |
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crashed - The domain has crashed, which is always a violent ending. Usually this state can only occur if |
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the domain has been configured not to restart on crash. |
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pmsuspended - The domain has been suspended by guest power management, e.g. entered into s3 state. |
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=cut |
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# This boots the server if possible. |
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sub start_server |
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{ |
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my ($conf) = @_; |
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# Start procedure; |
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# 1. Read the XML definition file and find the backing storage and bridges. Soft error if read fails. |
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# 2. Make sure the name matches. |
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# 3. Make sure we have enough free RAM. |
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# 4. Make sure the emulator exists (can be an issue after migrating from an different gen Anvil!). |
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# 5.1. Make sure optical drives with mounted data have the disk present. Soft error if not. |
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# 5.2. Find any backing DRBD devices |
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# 6. For each DRBD device; |
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# 6.1. Make sure the backing LV is ACTIVE. Soft error if not. |
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# 6.2. Check if the drbd resource is up. If not, up it. |
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# 6.3. Make sure the backing disk is UpToDate. Soft error if not. |
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# 6.4. Make sure the backing device is 'Connected' or 'Connecting'. Call a connect if not. |
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# 7. Make sure all bridges exist and soft error if not. |
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# 8. Start the server. |
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my $server = $conf->{environment}{OCF_RESKEY_name}; |
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to_log($conf, {message => "We've been asked to start the server: [$server].", 'line' => __LINE__, level => 2}); |
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validate_all($conf); |
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# If we're still alive, we're ready to boot. |
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to_log($conf, {message => "Sanity checks passed, ready to start: [$server].", 'line' => __LINE__, level => 2}); |
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my $definition_file = $conf->{path}{config}{definition}; |
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$definition_file =~ s/#!NAME!#/$server/; |
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to_log($conf, {message => "definition_file: [$definition_file].", 'line' => __LINE__, level => 2}); |
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my ($return_code, $output) = shell_call($conf, $conf->{path}{exe}{virsh}." create $definition_file"); |
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if ($return_code) |
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{ |
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# If this fails, we want to exit with OCF_ERR_CONFIGURED (6) so that pacemaker doesn't try to |
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# also start the server on another node, because we don't know the state of it here. |
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to_log($conf, {message => "All tests passed, yet the attempt to boot the server: [$server] exited with a non-zero return code: [$return_code]. The server is in an unknown state, so exiting with a fatal error. Human intervention is now required. The output, if any, was: [$output].", 'line' => __LINE__, level => 0, priority => "err"}); |
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exit(6); |
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} |
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# Verify that it started. |
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sleep 2; |
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$return_code = undef; |
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$output = undef; |
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($return_code, $output) = shell_call($conf, $conf->{path}{exe}{virsh}." list"); |
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if ($return_code) |
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{ |
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# If this fails, we want to exit with OCF_ERR_CONFIGURED (6) so that pacemaker doesn't try to |
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# also start the server on another node, because we don't know the state of it here. |
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to_log($conf, {message => "It appears that the call to boot the server: [$server] worked, but the call to list running servers exited with a non-zero return code: [$return_code]. The server is in an unknown state, so exiting with a fatal error. Human intervention is now required. The output, if any, was: [$output].", 'line' => __LINE__, level => 0, priority => "err"}); |
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exit(6); |
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} |
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foreach my $line (split/\n/, $output) |
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{ |
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$line =~ s/^\s+//; |
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$line =~ s/\s+$//; |
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$line =~ s/\s+/ /g; |
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if ($line =~ /^(\d+) $server (.*)$/) |
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{ |
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my $state = $2; |
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to_log($conf, {message => "server: [$server], state: [$state]", 'line' => __LINE__, level => 2}); |
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if ($state eq "running") |
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{ |
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# Success! |
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to_log($conf, {message => "The server: [$server] has started successfully.", 'line' => __LINE__, level => 2}); |
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exit(0); |
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} |
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else |
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{ |
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# WTF? |
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to_log($conf, {message => "The server: [$server] should have been started, but it's state is: [$state]. Human intervention is required!", 'line' => __LINE__, level => 1, priority => "err"}); |
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exit(6); |
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} |
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last; |
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} |
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} |
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# If we're still alive, then we didn't see the server in the list of running servers, which is really weird. |
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to_log($conf, {message => "The server: [$server] should have been started, but it wasn't found in the list of running servers.", 'line' => __LINE__, level => 1, priority => "err"}); |
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exit(1); |
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} |
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# This shuts down the server if possible. |
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sub stop_server |
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{ |
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my ($conf) = @_; |
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# Stopping the server is simply a question of "is the server running?" and, if so, stop it. |
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my $server = $conf->{environment}{OCF_RESKEY_name}; |
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my ($return_code, $output) = shell_call($conf, $conf->{path}{exe}{virsh}." list"); |
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if ($return_code) |
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{ |
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# Looks like virsh isn't running. |
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to_log($conf, {message => "The attempt to list the running servers returned a non-zero return code: [$return_code]. The output, if any, was: [$output].", 'line' => __LINE__, level => 0, priority => "err"}); |
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exit(1); |
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} |
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my $found = 0; |
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foreach my $line (split/\n/, $output) |
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{ |
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$line =~ s/^\s+//; |
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$line =~ s/\s+$//; |
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$line =~ s/\s+/ /g; |
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if ($line =~ /^(\d+) $server (.*)$/) |
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{ |
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my $state = $2; |
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$found = 1; |
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to_log($conf, {message => "server: [$server], state: [$state]", 'line' => __LINE__, level => 2}); |
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if ($state eq "running") |
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{ |
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# The server is running, shut it down. |
|
|
to_log($conf, {message => "The server: [$server] is running. We will ask it to shut down now.", 'line' => __LINE__, level => 2}); |
|
|
} |
|
|
elsif ($state eq "paused") |
|
|
{ |
|
|
# The server is paused. Resume it, wait a few, then proceed with the shutdown. |
|
|
to_log($conf, {message => "The server: [$server] is paused. Resuming it now so that it can react to the shutdown request.", 'line' => __LINE__, level => 2}); |
|
|
my ($return_code, $output) = shell_call($conf, $conf->{path}{exe}{virsh}." resume $server"); |
|
|
if ($return_code) |
|
|
{ |
|
|
# Looks like virsh isn't running. |
|
|
to_log($conf, {message => "The attempt to resume the server: [$server] returned a non-zero return code: [$return_code]. The output, if any, was: [$output].", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
to_log($conf, {message => "Pausing for a moment to give the server time to resume.", 'line' => __LINE__, level => 2}); |
|
|
sleep 3; |
|
|
} |
|
|
elsif ($state eq "pmsuspended") |
|
|
{ |
|
|
# The server is paused. Resume it, wait a few, then proceed with the shutdown. |
|
|
to_log($conf, {message => "The server: [$server] is asleep. Waking it now so that it can react to the shutdown request.", 'line' => __LINE__, level => 2}); |
|
|
my ($return_code, $output) = shell_call($conf, $conf->{path}{exe}{virsh}." dompmwakeup $server"); |
|
|
if ($return_code) |
|
|
{ |
|
|
# Looks like virsh isn't running. |
|
|
to_log($conf, {message => "The attempt to wake the server: [$server] returned a non-zero return code: [$return_code]. The output, if any, was: [$output].", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
to_log($conf, {message => "Pausing for half a minute to give the server time to wake up.", 'line' => __LINE__, level => 2}); |
|
|
sleep 30; |
|
|
} |
|
|
elsif (($state eq "in shutdown") or ($state eq "shut off")) |
|
|
{ |
|
|
# The server is already shutting down |
|
|
to_log($conf, {message => "The server: [$server] is already shutting down.", 'line' => __LINE__, level => 2}); |
|
|
exit(0); |
|
|
} |
|
|
elsif (($state eq "idle") or ($state eq "crashed")) |
|
|
{ |
|
|
# The server needs to be destroyed. |
|
|
to_log($conf, {message => "The server: [$server] is hung. Its state is: [$state]. We will force it off now.", 'line' => __LINE__, level => 2}); |
|
|
my ($return_code, $output) = shell_call($conf, $conf->{path}{exe}{virsh}." destroy $server"); |
|
|
if ($return_code) |
|
|
{ |
|
|
# Looks like virsh isn't running. |
|
|
to_log($conf, {message => "The attempt to force-off the server: [$server] returned a non-zero return code: [$return_code]. The output, if any, was: [$output].", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
|
|
|
to_log($conf, {message => "The server: [$server] is now off.", 'line' => __LINE__, level => 2}); |
|
|
exit(0); |
|
|
} |
|
|
else |
|
|
{ |
|
|
# WTF? |
|
|
to_log($conf, {message => "The server: [$server] is running, but it is in an unexpected state: [$state]. Human intervention is required!", 'line' => __LINE__, level => 1, priority => "err"}); |
|
|
exit(6); |
|
|
} |
|
|
|
|
|
last; |
|
|
} |
|
|
} |
|
|
|
|
|
# If we didn't see it, it's off and undefined. |
|
|
if (not $found) |
|
|
{ |
|
|
to_log($conf, {message => "The server: [$server] was not listed on this node, so it is not running here.", 'line' => __LINE__, level => 2}); |
|
|
exit(0); |
|
|
} |
|
|
|
|
|
# If we're alive, it is time to stop the server |
|
|
$return_code = undef; |
|
|
$output = undef; |
|
|
($return_code, $output) = shell_call($conf, $conf->{path}{exe}{virsh}." shutdown $server"); |
|
|
to_log($conf, {message => "Asking the server: [$server] to shut down now. Please be patient.", 'line' => __LINE__, level => 1}); |
|
|
if ($return_code) |
|
|
{ |
|
|
# Looks like virsh isn't running. |
|
|
to_log($conf, {message => "The attempt to shut down the server: [$server] returned a non-zero return code: [$return_code]. The output, if any, was: [$output].", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
|
|
|
# Now loop until we see the server either vanish from virsh or enter "shut off" state. We wait |
|
|
# forever and let pacemaker kill us if we time out. |
|
|
while (1) |
|
|
{ |
|
|
my $found = 0; |
|
|
my ($return_code, $output) = shell_call($conf, $conf->{path}{exe}{virsh}." list"); |
|
|
if ($return_code) |
|
|
{ |
|
|
# Looks like virsh isn't running. |
|
|
to_log($conf, {message => "The attempt to list the running servers returned a non-zero return code: [$return_code]. The output, if any, was: [$output].", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
foreach my $line (split/\n/, $output) |
|
|
{ |
|
|
$line =~ s/^\s+//; |
|
|
$line =~ s/\s+$//; |
|
|
$line =~ s/\s+/ /g; |
|
|
|
|
|
if ($line =~ /^(\d+) $server (.*)$/) |
|
|
{ |
|
|
my $state = $2; |
|
|
$found = 1; |
|
|
to_log($conf, {message => "server: [$server], state: [$state]", 'line' => __LINE__, level => 2}); |
|
|
|
|
|
if ($state eq "shut off") |
|
|
{ |
|
|
# We're down. |
|
|
to_log($conf, {message => "The server: [$server] is now off.", 'line' => __LINE__, level => 2}); |
|
|
exit(0); |
|
|
} |
|
|
|
|
|
last; |
|
|
} |
|
|
} |
|
|
|
|
|
# If we didn't find the server, it's off and undefined now. |
|
|
if (not $found) |
|
|
{ |
|
|
to_log($conf, {message => "The server: [$server] is no longer listed. It is now off.", 'line' => __LINE__, level => 2}); |
|
|
exit(0); |
|
|
} |
|
|
|
|
|
to_log($conf, {message => "The server: [$server] is not off yet, waiting a few seconds and then we'll check again.", 'line' => __LINE__, level => 2}); |
|
|
sleep 5; |
|
|
} |
|
|
|
|
|
exit(0); |
|
|
} |
|
|
|
|
|
# This checks the status of the server. |
|
|
sub server_status |
|
|
{ |
|
|
my ($conf) = @_; |
|
|
|
|
|
# If the named server is running, return OCF_SUCCESS (0), otherwise OCF_NOT_RUNNING (7). If the |
|
|
# server is failed, return OCF_ERR_GENERIC (1). |
|
|
my $state = ""; |
|
|
my $server = $conf->{environment}{OCF_RESKEY_name}; |
|
|
|
|
|
### NOTE: When pacemaker is first starting, virsh won't be up right away. So if we get a return code |
|
|
### of '1', we'll try again up to 50% of 'environment::OCF_RESKEY_CRM_meta_timeout'. |
|
|
if (not $conf->{environment}{OCF_RESKEY_CRM_meta_timeout}) |
|
|
{ |
|
|
# Set a sane default of 20 seconds. |
|
|
$conf->{environment}{OCF_RESKEY_CRM_meta_timeout} = 20000; |
|
|
to_log($conf, {message => "The environment variable 'OCF_RESKEY_CRM_meta_timeout' was not set, so setting it to: [".$conf->{environment}{OCF_RESKEY_CRM_meta_timeout}."].", 'line' => __LINE__, level => 1, priority => "warn"}); |
|
|
} |
|
|
my $return_code = undef; |
|
|
my $output = ""; |
|
|
my $current_time = time; |
|
|
my $timeout = $current_time + int(($conf->{environment}{OCF_RESKEY_CRM_meta_timeout} /= 1000) / 2); |
|
|
my $waiting = 1; |
|
|
to_log($conf, {message => "current_time: [$current_time], timeout: [$timeout].", 'line' => __LINE__, level => 2}); |
|
|
|
|
|
while($waiting) |
|
|
{ |
|
|
# Make the call |
|
|
($return_code, $output) = shell_call($conf, $conf->{path}{exe}{virsh}." list"); |
|
|
to_log($conf, {message => "return_code: [$return_code].", 'line' => __LINE__, level => 2}); |
|
|
if (not $return_code) |
|
|
{ |
|
|
$waiting = 0; |
|
|
to_log($conf, {message => "waiting: [$waiting].", 'line' => __LINE__, level => 2}); |
|
|
} |
|
|
elsif (time > $timeout) |
|
|
{ |
|
|
# We've waited long enough. |
|
|
$waiting = 0; |
|
|
to_log($conf, {message => "The 'virsh' call exited with the return code: [$return_code]. The 'libvirtd' may have failed to start. We won't wait any longer.", 'line' => __LINE__, level => 1, priority => "warn"}); |
|
|
} |
|
|
else |
|
|
{ |
|
|
to_log($conf, {message => "The 'virsh' call exited with the return code: [$return_code]. The 'libvirtd' service might be starting, so we will check again shortly.", 'line' => __LINE__, level => 2}); |
|
|
sleep 2; |
|
|
} |
|
|
} |
|
|
|
|
|
# If I got a non-zero return code, something went wrong with the virsh call. |
|
|
if ($return_code) |
|
|
{ |
|
|
to_log($conf, {message => "It would appear that libvirtd is not operating (or not operating correctly). Expected the return code '0' but got: [$return_code].", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
if ($output) |
|
|
{ |
|
|
to_log($conf, {message => "Output of: [".$conf->{path}{exe}{virsh}." list] follows;", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
to_log($conf, {message => "Output: [$output]", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
} |
|
|
exit(1); |
|
|
} |
|
|
|
|
|
# If we're still alive, process the output |
|
|
foreach my $line (split/\n/, $output) |
|
|
{ |
|
|
$line =~ s/^\s+//; |
|
|
$line =~ s/\s+$//; |
|
|
$line =~ s/\s+/ /g; |
|
|
|
|
|
if ($line =~ /^(\d+) $server (.*)$/) |
|
|
{ |
|
|
$state = $2; |
|
|
to_log($conf, {message => "server: [$server], state: [$state]", 'line' => __LINE__, level => 2}); |
|
|
|
|
|
last; |
|
|
} |
|
|
} |
|
|
|
|
|
# If there is a state, see what the state is. |
|
|
if ($state) |
|
|
{ |
|
|
# What is the state? |
|
|
# (See the comment below the 'FUNCTIONS' divider above the first function for a full list of states.) |
|
|
if (($state eq "running") or ($state eq "paused") or ($state eq "pmsuspended") or ($state eq "in shutdown")) |
|
|
{ |
|
|
to_log($conf, {message => "The server: [$server] is: [$state], which is OK.", 'line' => __LINE__, level => 1}); |
|
|
exit(0); |
|
|
} |
|
|
elsif ($state eq "shut off") |
|
|
{ |
|
|
to_log($conf, {message => "The server: [$server] is: [$state].", 'line' => __LINE__, level => 1}); |
|
|
exit(7); |
|
|
} |
|
|
elsif (($state eq "idle") or ($state eq "crashed")) |
|
|
{ |
|
|
to_log($conf, {message => "The server: [$server] is in a bad state: [$state]!", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
else |
|
|
{ |
|
|
# WTF? |
|
|
to_log($conf, {message => "The server: [$server] is in an unexpected state: [$state]!", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
} |
|
|
else |
|
|
{ |
|
|
# Not running. Exit with OCF_NOT_RUNNING |
|
|
to_log($conf, {message => "The server: [$server] is not running on this node.", 'line' => __LINE__, level => 1}); |
|
|
exit(7); |
|
|
} |
|
|
|
|
|
exit(0); |
|
|
} |
|
|
|
|
|
# Migrate the server |
|
|
sub migrate_server |
|
|
{ |
|
|
my ($conf) = @_; |
|
|
|
|
|
# If we were given 'migrate_to', then just verify that the node name makes sense. If we were given |
|
|
# 'migrate_from', we need to find the peer. |
|
|
|
|
|
# Return failed until this is actually implemented. |
|
|
exit(1); |
|
|
} |
|
|
|
|
|
# Validation checks that we have the definition XML, resource config and that needed apps are installed. |
|
|
sub validate_all |
|
|
{ |
|
|
my ($conf) = @_; |
|
|
to_log($conf, {message => "Running validation tests...", 'line' => __LINE__, level => 2}); |
|
|
|
|
|
# Read in the server's definition file (if found and readable). |
|
|
read_server_definition($conf); |
|
|
to_log($conf, {message => "- Server definition was read.", 'line' => __LINE__, level => 2}); |
|
|
|
|
|
# Does the internal server name match? |
|
|
validate_name($conf); |
|
|
to_log($conf, {message => "- Server name is valid.", 'line' => __LINE__, level => 2}); |
|
|
|
|
|
# Make sure the emulator it wants is the one we have. |
|
|
validate_emulator($conf); |
|
|
to_log($conf, {message => "- Eumlator is valid.", 'line' => __LINE__, level => 2}); |
|
|
|
|
|
# These tests are only needed if we're about to boot the server |
|
|
if ($conf->{switches}{start}) |
|
|
{ |
|
|
# Check that we have enough RAM. |
|
|
validate_ram($conf); |
|
|
to_log($conf, {message => "- Sufficient RAM is available.", 'line' => __LINE__, level => 2}); |
|
|
} |
|
|
|
|
|
# Validate bridges |
|
|
validate_bridges($conf); |
|
|
to_log($conf, {message => "- Network bridge(s) are available.", 'line' => __LINE__, level => 2}); |
|
|
|
|
|
# Validate storage (Disks and optical media) |
|
|
validate_storage($conf); |
|
|
to_log($conf, {message => "- Storage is valid and ready.", 'line' => __LINE__, level => 2}); |
|
|
|
|
|
return(0); |
|
|
} |
|
|
|
|
|
# This ensures that the bridges the server connects to exist on this node. |
|
|
sub validate_bridges |
|
|
{ |
|
|
my ($conf) = @_; |
|
|
|
|
|
# Find the Optical drives and DRBD devices. |
|
|
foreach my $device_ref (@{$conf->{server}{definition_xml}->{devices}}) |
|
|
{ |
|
|
foreach my $interface_ref (@{$device_ref->{interface}}) |
|
|
{ |
|
|
foreach my $source_ref (@{$interface_ref->{source}}) |
|
|
{ |
|
|
my $bridge = $source_ref->{bridge}; |
|
|
$conf->{server}{bridges}{$bridge} = 1; |
|
|
to_log($conf, {message => "server::bridges::${bridge}: [".$conf->{server}{bridges}{$bridge}."].", 'line' => __LINE__, level => 3}); |
|
|
} |
|
|
} |
|
|
} |
|
|
|
|
|
# Get a list of available bridges. |
|
|
my ($return_code, $output) = shell_call($conf, $conf->{path}{exe}{brctl}." show"); |
|
|
my $first_line = 1; |
|
|
foreach my $line (split/\n/, $output) |
|
|
{ |
|
|
to_log($conf, {message => "line: [$line].", 'line' => __LINE__, level => 3}); |
|
|
if ($first_line) |
|
|
{ |
|
|
# We skip the first line instead of parse the string to avoid getting caught by |
|
|
# translations. |
|
|
$first_line = 0; |
|
|
} |
|
|
elsif ($line =~ /^(\S+)\s/) |
|
|
{ |
|
|
my $bridge = $1; |
|
|
$conf->{'local'}{bridge}{$bridge} = 1; |
|
|
to_log($conf, {message => "local::bridge::${bridge}: [$bridge].", 'line' => __LINE__, level => 3}); |
|
|
} |
|
|
} |
|
|
|
|
|
# Verify bridges now |
|
|
foreach my $bridge (sort {$a cmp $b} keys %{$conf->{server}{bridges}}) |
|
|
{ |
|
|
if ($conf->{'local'}{bridge}{$bridge}) |
|
|
{ |
|
|
to_log($conf, {message => "The bridge: [$bridge] is available for this server.", 'line' => __LINE__, level => 2}); |
|
|
} |
|
|
else |
|
|
{ |
|
|
# Missing bridge. |
|
|
to_log($conf, {message => "The server wants to connect to the bridge: [$bridge] which we do not have on this node.", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(5); |
|
|
} |
|
|
} |
|
|
|
|
|
return(0); |
|
|
} |
|
|
|
|
|
# This looks up the disks and optical media connected to this server. |
|
|
sub validate_storage |
|
|
{ |
|
|
my ($conf) = @_; |
|
|
|
|
|
# Find the bridge(s) this server uses. |
|
|
foreach my $device_ref (@{$conf->{server}{definition_xml}->{devices}}) |
|
|
{ |
|
|
foreach my $disk_ref (@{$device_ref->{disk}}) |
|
|
{ |
|
|
my $type = $disk_ref->{device}; |
|
|
to_log($conf, {message => "type: [$type].", 'line' => __LINE__, level => 2}); |
|
|
if ($type eq "disk") |
|
|
{ |
|
|
foreach my $source_ref (@{$disk_ref->{source}}) |
|
|
{ |
|
|
my $device_path = $source_ref->{dev}; |
|
|
$conf->{server}{disks}{$device_path} = "check"; |
|
|
to_log($conf, {message => "server::disks::${device_path}: [".$conf->{server}{disks}{$device_path}."].", 'line' => __LINE__, level => 2}); |
|
|
} |
|
|
} |
|
|
elsif ($type eq "cdrom") |
|
|
{ |
|
|
foreach my $source_ref (@{$disk_ref->{source}}) |
|
|
{ |
|
|
my $file = $source_ref->{file}; |
|
|
$conf->{server}{optical}{$file} = 1; |
|
|
to_log($conf, {message => "server::optical::${file}: [".$conf->{server}{optical}{$file}."].", 'line' => __LINE__, level => 2}); |
|
|
} |
|
|
} |
|
|
} |
|
|
} |
|
|
|
|
|
# Verify optical disks now |
|
|
validate_storage_optical($conf); |
|
|
|
|
|
# Verify DRBD devices now |
|
|
validate_storage_drbd($conf); |
|
|
|
|
|
return(0); |
|
|
} |
|
|
|
|
|
# THis makes sure that the needed backing DRBD devices are on this node. If so, and if they are not up, they |
|
|
# will be brought up. If that fails, it errors out. |
|
|
sub validate_storage_drbd |
|
|
{ |
|
|
my ($conf) = @_; |
|
|
|
|
|
# Read in the DRBD configuration XML. |
|
|
my ($return_code, $drbd_body) = shell_call($conf, $conf->{path}{exe}{drbdadm}." dump-xml"); |
|
|
if ($return_code) |
|
|
{ |
|
|
# Something went wrong. |
|
|
to_log($conf, {message => "The attempt to read the DRBD configuration returned a non-zero code: [$return_code]. The returned output (if any) was: [$drbd_body].", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
|
|
|
# Parse the XML |
|
|
my $drbd_xml = ""; |
|
|
my $xml = XML::Simple->new(); |
|
|
eval { $drbd_xml = $xml->XMLin($drbd_body, KeyAttr => ["name", "vnr"], ForceArray => 1) }; |
|
|
if ($@) |
|
|
{ |
|
|
chomp $@; |
|
|
my $error = "[ Error ] - The was a problem parsing: [$drbd_body]. The error was:\n"; |
|
|
$error .= "===========================================================\n"; |
|
|
$error .= $@."\n"; |
|
|
$error .= "===========================================================\n"; |
|
|
to_log($conf, {message => $error, 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
|
|
|
foreach my $resource (sort {$a cmp $b} keys %{$drbd_xml->{resource}}) |
|
|
{ |
|
|
to_log($conf, {message => "resource: [$resource].", 'line' => __LINE__, level => 2}); |
|
|
|
|
|
my $peer = ""; |
|
|
my $local = ""; |
|
|
foreach my $connection_ref (@{$drbd_xml->{resource}->{$resource}->{connection}}) |
|
|
{ |
|
|
my $protocol = $connection_ref->{section}->{net}->{option}->{protocol}->{value}; |
|
|
my $fencing = $connection_ref->{section}->{net}->{option}->{fencing}->{value}; |
|
|
to_log($conf, {message => "protocol: [$resource], fencing: [$fencing].", 'line' => __LINE__, level => 3}); |
|
|
|
|
|
# If this isn't set to 'resource-and-stonith', it's a DR connection and we'll ignore |
|
|
# it. |
|
|
next if $fencing ne "resource-and-stonith"; |
|
|
|
|
|
# Look at the hosts |
|
|
foreach my $host (sort {$a cmp $b} keys %{$connection_ref->{host}}) |
|
|
{ |
|
|
my $address = $connection_ref->{host}->{$host}->{address}->[0]->{content}; |
|
|
my $port = $connection_ref->{host}->{$host}->{address}->[0]->{port}; |
|
|
my $short_hostname = $host; |
|
|
$short_hostname =~ s/\..*$//; |
|
|
my $local_hostname = $conf->{environment}{OCF_RESKEY_CRM_meta_on_node}; |
|
|
to_log($conf, {message => "host: [$host ($short_hostname)], address: [$address:$port], local_hostname: [$local_hostname].", 'line' => __LINE__, level => 2}); |
|
|
|
|
|
# Is this me or the peer? |
|
|
if (($local_hostname eq $short_hostname) or ($local_hostname =~ /^$short_hostname\./)) |
|
|
{ |
|
|
# This is us. |
|
|
$local = $host; |
|
|
to_log($conf, {message => "Recording the local connection details for the resource: [$resource] -> [$address:$port].", 'line' => __LINE__, level => 2}); |
|
|
$conf->{server}{drbd}{'local'}{hostname} = $host, |
|
|
$conf->{server}{drbd}{'local'}{short_hostname} = $short_hostname, |
|
|
$conf->{server}{drbd}{'local'}{address} = $address, |
|
|
$conf->{server}{drbd}{'local'}{port} = $port, |
|
|
} |
|
|
else |
|
|
{ |
|
|
# This is our peer |
|
|
$peer = $host; |
|
|
to_log($conf, {message => "Recording the peer's connection details for the resource: [$resource] -> [$address:$port].", 'line' => __LINE__, level => 2}); |
|
|
$conf->{server}{drbd}{peer}{hostname} = $host, |
|
|
$conf->{server}{drbd}{peer}{short_hostname} = $short_hostname, |
|
|
$conf->{server}{drbd}{peer}{address} = $address, |
|
|
$conf->{server}{drbd}{peer}{port} = $port, |
|
|
} |
|
|
} |
|
|
} |
|
|
|
|
|
to_log($conf, {message => "local: [$local], peer: [$peer].", 'line' => __LINE__, level => 2}); |
|
|
foreach my $volume (sort {$a cmp $b} keys %{$drbd_xml->{resource}->{$resource}->{host}->{$local}->{volume}}) |
|
|
{ |
|
|
my $backing_device = $drbd_xml->{resource}->{$resource}->{host}->{$local}->{volume}->{$volume}->{disk}->[0]; |
|
|
my $device_path = $drbd_xml->{resource}->{$resource}->{host}->{$local}->{volume}->{$volume}->{device}->[0]->{content}; |
|
|
my $device_minor = $drbd_xml->{resource}->{$resource}->{host}->{$local}->{volume}->{$volume}->{device}->[0]->{minor}; |
|
|
to_log($conf, {message => "volume: [$volume], backing_device: [$backing_device], device_path: [$device_path], device_minor: [$device_minor].", 'line' => __LINE__, level => 3}); |
|
|
|
|
|
$conf->{server}{drbd}{'local'}{device}{$device_path}{lv} = $backing_device; |
|
|
$conf->{server}{drbd}{'local'}{device}{$device_path}{minor} = $device_minor; |
|
|
to_log($conf, {message => "server::drbd::local::device::${device_path}::lv: [".$conf->{server}{drbd}{'local'}{device}{$device_path}{lv}."], server::drbd::local::device::${device_path}::minor: [".$conf->{server}{drbd}{'local'}{device}{$device_path}{minor}."].", 'line' => __LINE__, level => 2}); |
|
|
|
|
|
# Map the resource name to the local drbd device path. |
|
|
$conf->{resource}{$resource}{lv} = $backing_device; |
|
|
$conf->{resource}{$resource}{path} = $device_path; |
|
|
$conf->{device_path}{$device_path}{resource} = $resource; |
|
|
to_log($conf, {message => "resource::${resource}::path: [".$conf->{resource}{$resource}{path}."], resource::${resource}::lv: [".$conf->{resource}{$resource}{lv}."], device_path::${device_path}::resource: [".$conf->{device_path}{$device_path}{resource}."].", 'line' => __LINE__, level => 2}); |
|
|
} |
|
|
} |
|
|
|
|
|
foreach my $device_path (sort {$a cmp $b} keys %{$conf->{server}{disks}}) |
|
|
{ |
|
|
to_log($conf, {message => "Checking that the DRBD device: [$device_path] is ready.", 'line' => __LINE__, level => 2}); |
|
|
|
|
|
to_log($conf, {message => "server::drbd::local::device::${device_path}::lv: [".$conf->{server}{drbd}{'local'}{device}{$device_path}{lv}."].", 'line' => __LINE__, level => 2}); |
|
|
if (not $conf->{server}{drbd}{'local'}{device}{$device_path}{lv}) |
|
|
{ |
|
|
# The backing LV doesn't exist. |
|
|
to_log($conf, {message => "The server wants to use: [$device_path] as a hard drive, but we couldn't find the backing logical volume on this node.", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(5); |
|
|
} |
|
|
elsif (not -e $conf->{server}{drbd}{'local'}{device}{$device_path}{lv}) |
|
|
{ |
|
|
# The backing LV doesn't exist. |
|
|
to_log($conf, {message => "The server wants to use: [$device_path] as a hard drive, but the backing logical volume: [".$conf->{server}{drbd}{'local'}{device}{$device_path}{lv}."] doesn't exist on this node.", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(5); |
|
|
} |
|
|
else |
|
|
{ |
|
|
to_log($conf, {message => "The server wants to use: [$device_path] as a hard drive, which is backed by the logical volume: [".$conf->{server}{drbd}{'local'}{device}{$device_path}{lv}."]. Checking that these are ready.", 'line' => __LINE__, level => 1}); |
|
|
} |
|
|
} |
|
|
|
|
|
# Now read in the status of the drbd devices |
|
|
$return_code = undef; |
|
|
($return_code, my $status_json) = shell_call($conf, $conf->{path}{exe}{drbdsetup}." status --json"); |
|
|
if ($return_code) |
|
|
{ |
|
|
# Something went wrong. |
|
|
to_log($conf, {message => "The attempt to read the DRBD status returned a non-zero code: [$return_code]. The returned output (if any) was: [$status_json].", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
|
|
|
# If DRBD is not up, the returned JSON output will not actually exist. |
|
|
if ($status_json =~ /No currently configured DRBD found/si) |
|
|
{ |
|
|
to_log($conf, {message => "DRBD is not loaded. Bringing it up now.", 'line' => __LINE__, level => 2}); |
|
|
foreach my $device_path (sort {$a cmp $b} keys %{$conf->{server}{disks}}) |
|
|
{ |
|
|
my $resource = $conf->{device_path}{$device_path}{resource}; |
|
|
to_log($conf, {message => "Bringing up the resource: [$resource] for the server's: [".$device_path."] disk.", 'line' => __LINE__, level => 2}); |
|
|
|
|
|
($return_code, my $drbdadm_output) = shell_call($conf, $conf->{path}{exe}{drbdadm}." up $resource"); |
|
|
if ($return_code) |
|
|
{ |
|
|
# Something went wrong. |
|
|
to_log($conf, {message => "The attempt to start the DRBD resource: [$resource] returned a non-zero code: [$return_code]. The returned output (if any) was: [$drbdadm_output].", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
} |
|
|
|
|
|
# Give them a few seconds to start. |
|
|
to_log($conf, {message => "Pausing briefly to give the resources time to start.", 'line' => __LINE__, level => 0}); |
|
|
sleep 3; |
|
|
|
|
|
# Check DRBD setup again |
|
|
$return_code = undef; |
|
|
$status_json = undef; |
|
|
to_log($conf, {message => "Checking the DRBD status again.", 'line' => __LINE__, level => 0}); |
|
|
($return_code, $status_json) = shell_call($conf, $conf->{path}{exe}{drbdsetup}." status --json"); |
|
|
if ($return_code) |
|
|
{ |
|
|
# Something went wrong. |
|
|
to_log($conf, {message => "The attempt to read the DRBD status after bringing up the resource(s) for this server returned a non-zero code: [$return_code]. The returned output (if any) was: [$status_json].", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
|
|
|
# If DRBD is still not up, we're done. |
|
|
if ($status_json =~ /No currently configured DRBD found/si) |
|
|
{ |
|
|
to_log($conf, {message => "The attempt to read the DRBD status after bringing up the resource(s) appears to have failed.", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
} |
|
|
|
|
|
# Process the JSON data. If any disks are not seen, they won't be set to 'ok', which we'll catch next. |
|
|
check_drbd_status($conf, $status_json); |
|
|
|
|
|
# Make sure I saw all disks. |
|
|
my $check_again = 0; |
|
|
foreach my $device_path (sort {$a cmp $b} keys %{$conf->{server}{disks}}) |
|
|
{ |
|
|
if ($conf->{server}{disks}{$device_path} eq "check") |
|
|
{ |
|
|
# Failed to see it, see if we can bring it up. |
|
|
$check_again = 1; |
|
|
my $resource = $conf->{device_path}{$device_path}{resource}; |
|
|
to_log($conf, {message => "The DRBD resource: [$resource] backing the device: [$device_path] was not seen in the 'drbdsetup' status data. Attempting to bringing it up now.", 'line' => __LINE__, level => 2}); |
|
|
|
|
|
($return_code, my $drbdadm_output) = shell_call($conf, $conf->{path}{exe}{drbdadm}." up $resource"); |
|
|
if ($return_code) |
|
|
{ |
|
|
# Something went wrong. |
|
|
to_log($conf, {message => "The attempt to start the DRBD resource: [$resource] returned a non-zero code: [$return_code]. The returned output (if any) was: [$drbdadm_output].", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
} |
|
|
|
|
|
to_log($conf, {message => "check_again: [$check_again].", 'line' => __LINE__, level => 2}); |
|
|
if ($check_again) |
|
|
{ |
|
|
# Give the resource a few seconds to start. |
|
|
to_log($conf, {message => "Pausing briefly to give the resources time to start.", 'line' => __LINE__, level => 2}); |
|
|
sleep 3; |
|
|
|
|
|
# Check again. |
|
|
$return_code = undef; |
|
|
$status_json = undef; |
|
|
to_log($conf, {message => "Checking the DRBD status again.", 'line' => __LINE__, level => 2}); |
|
|
($return_code, $status_json) = shell_call($conf, $conf->{path}{exe}{drbdsetup}." status --json"); |
|
|
if ($return_code) |
|
|
{ |
|
|
# Something went wrong. |
|
|
to_log($conf, {message => "The attempt to read the DRBD status after bringing up the resource(s) for this server returned a non-zero code: [$return_code]. The returned output (if any) was: [$status_json].", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
|
|
|
# Check again. |
|
|
check_drbd_status($conf, $status_json); |
|
|
} |
|
|
} |
|
|
|
|
|
# Do I need to check again? |
|
|
if ($check_again) |
|
|
{ |
|
|
foreach my $device_path (sort {$a cmp $b} keys %{$conf->{server}{disks}}) |
|
|
{ |
|
|
if ($conf->{server}{disks}{$device_path} eq "check") |
|
|
{ |
|
|
# Failed. |
|
|
my $resource = $conf->{device_path}{$device_path}{resource}; |
|
|
to_log($conf, {message => "The DRBD resource: [$resource] backing the device: [$device_path] was not able to start.", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
} |
|
|
} |
|
|
|
|
|
return(0); |
|
|
} |
|
|
|
|
|
# This processes the DRBD setup JSON data |
|
|
sub check_drbd_status |
|
|
{ |
|
|
my ($conf, $status_json) = @_; |
|
|
|
|
|
my $json = JSON->new->allow_nonref; |
|
|
my $drbd_status = $json->decode($status_json); |
|
|
foreach my $resource_ref (@{$drbd_status}) |
|
|
{ |
|
|
my $resource = $resource_ref->{name}; |
|
|
my $device_path = $conf->{resource}{$resource}{path}; |
|
|
my $logical_volume = $conf->{resource}{$resource}{lv}; |
|
|
to_log($conf, {message => "resource: [$resource], device_path: [$device_path], logical_volume: [$logical_volume].", 'line' => __LINE__, level => 2}); |
|
|
|
|
|
if ((exists $conf->{server}{disks}{$device_path}) && ($conf->{server}{disks}{$device_path} eq "check")) |
|
|
{ |
|
|
### This disk is in use by this server, check it. |
|
|
to_log($conf, {message => "The local replicated disk: [$device_path] is used by this server. Checking it out now.", 'line' => __LINE__, level => 2}); |
|
|
|
|
|
# First, are any of the local volumes not UpToDate? |
|
|
foreach my $device_ref (@{$resource_ref->{devices}}) |
|
|
{ |
|
|
# Are we UpToDate (or SyncSource)? |
|
|
if ((lc($device_ref->{'disk-state'}) ne "uptodate") && (lc($device_ref->{'disk-state'}) ne "syncsource")) |
|
|
{ |
|
|
# If we've been asked to start, refuse. |
|
|
if ($conf->{switches}{start}) |
|
|
{ |
|
|
to_log($conf, {message => "The DRBD resource: [$resource] volume: [".$device_ref->{volume}."] locat disk state is: [".$device_ref->{'disk-state'}."]. Unsafe to boot the server unless the disk state is UpToDate.", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
} |
|
|
else |
|
|
{ |
|
|
to_log($conf, {message => "The DRBD resource: [$resource] volume: [".$device_ref->{volume}."] locat disk state is: [".$device_ref->{'disk-state'}."], good.", 'line' => __LINE__, level => 2}); |
|
|
} |
|
|
} |
|
|
|
|
|
# Is this a connection we care about? |
|
|
foreach my $connection_ref (@{$resource_ref->{connections}}) |
|
|
{ |
|
|
# Is the peer's role Primary? |
|
|
to_log($conf, {message => "Checking connection to: [".$connection_ref->{name}."].", 'line' => __LINE__, level => 2}); |
|
|
if (lc($connection_ref->{'peer-role'}) eq "primary") |
|
|
{ |
|
|
# Don't boot here |
|
|
if ($conf->{switches}{start}) |
|
|
{ |
|
|
to_log($conf, {message => "The DRBD resource: [$resource] on the peer: [".$connection_ref->{name}."] is 'Primary'. Refusing to boot.", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
} |
|
|
} |
|
|
|
|
|
# If we're here, it's OK. |
|
|
$conf->{server}{disks}{$device_path} = "ok"; |
|
|
to_log($conf, {message => "server::disks::${device_path}: [".$conf->{server}{disks}{$device_path}."].", 'line' => __LINE__, level => 2}); |
|
|
} |
|
|
else |
|
|
{ |
|
|
to_log($conf, {message => "Ignoring the local replicated disk: [$device_path], it is not used by this server.", 'line' => __LINE__, level => 2}); |
|
|
} |
|
|
} |
|
|
|
|
|
return(0); |
|
|
} |
|
|
|
|
|
# This makes sure that any media in the server's optical drive exists here and is readable. |
|
|
sub validate_storage_optical |
|
|
{ |
|
|
my ($conf) = @_; |
|
|
|
|
|
foreach my $file (sort {$a cmp $b} keys %{$conf->{server}{optical}}) |
|
|
{ |
|
|
to_log($conf, {message => "Checking that the optical disc image: [$file] exists.", 'line' => __LINE__, level => 2}); |
|
|
|
|
|
# If the file doesn't exist, exit with OCF_ERR_INSTALLED (5). If we can't read it, exit with |
|
|
# OCF_ERR_PERM (4). |
|
|
if (not -e $file) |
|
|
{ |
|
|
# It doesn't exist. Exit with OCF_ERR_INSTALLED (5). |
|
|
to_log($conf, {message => "The server has the ISO: [$file] mounted in its optical drive, but that file doesn't exist on this system.", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(5); |
|
|
} |
|
|
elsif (not -r $file) |
|
|
{ |
|
|
# We can't read it. Exit with OCF_ERR_PERM (4). |
|
|
to_log($conf, {message => "The server has the ISO: [$file] mounted in its optical drive, which we have, but we can't read it. Check permissions and for SELinux denials.", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(4); |
|
|
} |
|
|
else |
|
|
{ |
|
|
# We're OK. |
|
|
to_log($conf, {message => "The server has the ISO: [$file] mounted in its optical drive, which we have.", 'line' => __LINE__, level => 2}); |
|
|
} |
|
|
} |
|
|
|
|
|
return(0); |
|
|
} |
|
|
|
|
|
# This verifies that the requested emulator exists and can be used. |
|
|
sub validate_emulator |
|
|
{ |
|
|
my ($conf) = @_; |
|
|
|
|
|
# What emulator is this using? |
|
|
my $emulator = $conf->{server}{definition_xml}->{devices}->[0]->{emulator}->[0]; |
|
|
to_log($conf, {message => "emulator: [$emulator]", 'line' => __LINE__, level => 2}); |
|
|
if (not -e $emulator) |
|
|
{ |
|
|
# It doesn't exist. Exit with OCF_ERR_INSTALLED (5). |
|
|
to_log($conf, {message => "The server wants to use the emulator: [$emulator] which doesn't exist on this node. Was this server migrated from a different generation Anvil! system? Please update '<emulator>...</emulator>' in the server's definition file: [".$conf->{server}{definition_file}."].", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(5); |
|
|
} |
|
|
if (not -x $emulator) |
|
|
{ |
|
|
# We can't execute it. Exit with OCF_ERR_PERM (4). |
|
|
to_log($conf, {message => "The server wants to use the emulator: [$emulator] which exists, but we can't run. Please check permissions and for SELinux denials.", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(4); |
|
|
} |
|
|
|
|
|
return(0); |
|
|
} |
|
|
|
|
|
# This makes sure the name we see in the definition file matches what we expect. |
|
|
sub validate_name |
|
|
{ |
|
|
my ($conf) = @_; |
|
|
|
|
|
my $server = $conf->{environment}{OCF_RESKEY_name}; |
|
|
if ($server ne $conf->{server}{definition_xml}->{name}->[0]) |
|
|
{ |
|
|
to_log($conf, {message => "The configured server name: [$server] does not match the name of the server in the definition file: [".$conf->{server}{definition_xml}->{name}."]!", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
|
|
|
return(0); |
|
|
} |
|
|
|
|
|
# This checks that there is enough RAM to run this server. |
|
|
sub validate_ram |
|
|
{ |
|
|
my ($conf) = @_; |
|
|
|
|
|
# How mcuh RAM does the server need? |
|
|
my $server_ram_value = $conf->{server}{definition_xml}->{memory}->[0]->{content}; |
|
|
my $server_ram_units = $conf->{server}{definition_xml}->{memory}->[0]->{unit}; |
|
|
to_log($conf, {message => "server_ram_value: [$server_ram_value], server_ram_units: [$server_ram_units].", 'line' => __LINE__, level => 2}); |
|
|
|
|
|
# Convert to bytes |
|
|
my $server_ram_bytes = $server_ram_value; |
|
|
if ($server_ram_units =~ /^k/i) { $server_ram_bytes = ($server_ram_value * (2 ** 10)); } |
|
|
elsif ($server_ram_units =~ /^m/i) { $server_ram_bytes = ($server_ram_value * (2 ** 20)); } |
|
|
elsif ($server_ram_units =~ /^g/i) { $server_ram_bytes = ($server_ram_value * (2 ** 30)); } |
|
|
elsif ($server_ram_units =~ /^t/i) { $server_ram_bytes = ($server_ram_value * (2 ** 40)); } |
|
|
elsif ($server_ram_units =~ /^p/i) { $server_ram_bytes = Math::BigInt->new('2')->bpow('50')->bmul($server_ram_value); } |
|
|
elsif ($server_ram_units =~ /^e/i) { $server_ram_bytes = Math::BigInt->new('2')->bpow('60')->bmul($server_ram_value); } |
|
|
elsif ($server_ram_units =~ /^z/i) { $server_ram_bytes = Math::BigInt->new('2')->bpow('70')->bmul($server_ram_value); } |
|
|
elsif ($server_ram_units =~ /^y/i) { $server_ram_bytes = Math::BigInt->new('2')->bpow('80')->bmul($server_ram_value); } |
|
|
to_log($conf, {message => "server_ram_bytes: [$server_ram_bytes].", 'line' => __LINE__, level => 3}); |
|
|
|
|
|
# How much RAM do we have available? |
|
|
my $available = 0; |
|
|
my ($free_rc, $free_output) = shell_call($conf, $conf->{path}{exe}{free}." --bytes"); |
|
|
foreach my $line (split/\n/, $free_output) |
|
|
{ |
|
|
to_log($conf, {message => "line: [$line].", 'line' => __LINE__, level => 3}); |
|
|
if ($line =~ /Mem:\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)$/) |
|
|
{ |
|
|
my $total = $1; |
|
|
my $used = $2; |
|
|
my $free = $3; |
|
|
my $shared = $4; |
|
|
my $cache = $5; |
|
|
$available = $6; |
|
|
to_log($conf, {message => "total: [$total], used: [$used], free: [$free], shared: [$shared], cache: [$cache], available: [$available]", 'line' => __LINE__, level => 3}); |
|
|
} |
|
|
} |
|
|
|
|
|
to_log($conf, {message => "server_ram_bytes: [".comma($conf, $server_ram_bytes)." bytes].", 'line' => __LINE__, level => 2}); |
|
|
to_log($conf, {message => "available: ...... [".comma($conf, $available)." bytes].", 'line' => __LINE__, level => 2}); |
|
|
if ($server_ram_bytes > $available) |
|
|
{ |
|
|
# Not enough free memory. |
|
|
to_log($conf, {message => "The configured server name: [".$conf->{environment}{OCF_RESKEY_name}."] needs: [".comma($conf, $server_ram_bytes)." bytes] of RAM, but only: [".comma($conf, $available)." bytes] are available!", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
|
|
|
return(0); |
|
|
} |
|
|
|
|
|
# This reads the XML definition data into an XML data hash. |
|
|
sub read_server_definition |
|
|
{ |
|
|
my ($conf) = @_; |
|
|
|
|
|
my $server = $conf->{environment}{OCF_RESKEY_name}; |
|
|
my $definition_file = $conf->{path}{config}{definition}; |
|
|
$definition_file =~ s/#!NAME!#/$server/; |
|
|
my $server_xml = ""; |
|
|
to_log($conf, {message => "server: [$server], definition_file: [$definition_file]", 'line' => __LINE__, level => 3}); |
|
|
|
|
|
# If the file doesn't exist, return OCF_ERR_INSTALLED (5). If the file exists but we can't read it, |
|
|
# return OCF_ERR_PERM (4). |
|
|
if (not -e $definition_file) |
|
|
{ |
|
|
to_log($conf, {message => "The definition file: [$definition_file] for the server: [$server] does not exist here!", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(5); |
|
|
} |
|
|
elsif (not -r $definition_file) |
|
|
{ |
|
|
to_log($conf, {message => "The definition file: [$definition_file] for the server: [$server] can not be read!", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(4); |
|
|
} |
|
|
|
|
|
# Still alive? Read it in. |
|
|
my ($definition_xml) = read_file($conf, $definition_file); |
|
|
to_log($conf, {message => "definition_xml: [$definition_xml]", 'line' => __LINE__, level => 3}); |
|
|
|
|
|
my $xml = XML::Simple->new(); |
|
|
eval { $server_xml = $xml->XMLin($definition_xml, KeyAttr => {}, ForceArray => 1) }; |
|
|
if ($@) |
|
|
{ |
|
|
chomp $@; |
|
|
my $error = "[ Error ] - The was a problem parsing: [$definition_file]. The error was:\n"; |
|
|
$error .= "===========================================================\n"; |
|
|
$error .= $@."\n"; |
|
|
$error .= "===========================================================\n"; |
|
|
to_log($conf, {message => $error, 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
|
|
|
$conf->{server}{definition_xml} = $server_xml; |
|
|
$conf->{server}{definition_file} = $definition_file; |
|
|
|
|
|
return(0); |
|
|
} |
|
|
|
|
|
# This reads in a file and returns the contents as a single string variable. |
|
|
sub read_file |
|
|
{ |
|
|
my ($conf, $file) = @_; |
|
|
|
|
|
my $body = ""; |
|
|
open (my $file_handle, "<".$file) or to_log($conf, {message => "Failed to read: [$file]. The error was: $!", 'line' => __LINE__, level => 0, priority => "err", exit_code => 1}); |
|
|
while(<$file_handle>) |
|
|
{ |
|
|
# This should not generate output. |
|
|
chomp; |
|
|
my $line = $_; |
|
|
to_log($conf, {message => "Output: [$line]", 'line' => __LINE__, level => 3}); |
|
|
|
|
|
$body .= $line."\n"; |
|
|
} |
|
|
close $file_handle; |
|
|
|
|
|
to_log($conf, {message => "body: [$body]", 'line' => __LINE__, level => 3}); |
|
|
return($body); |
|
|
} |
|
|
|
|
|
# This makes a system call and returns the return code and the output as string variable. |
|
|
sub shell_call |
|
|
{ |
|
|
my ($conf, $shell_call) = @_; |
|
|
|
|
|
$shell_call .= " 2>&1; ".$conf->{path}{exe}{echo}." return_code:\$?"; |
|
|
my $return_code = 9999; |
|
|
my $output = ""; |
|
|
to_log($conf, {message => "Calling: [$shell_call]", 'line' => __LINE__, level => 2}); |
|
|
open (my $file_handle, $shell_call." 2>&1 |") or to_log($conf, {message => "Failed to call: [".$shell_call."]. The error was: $!", 'line' => __LINE__, level => 0, priority => "err", exit_code => 1}); |
|
|
while(<$file_handle>) |
|
|
{ |
|
|
# This should not generate output. |
|
|
chomp; |
|
|
my $line = $_; |
|
|
to_log($conf, {message => "line: [$line]", 'line' => __LINE__, level => 3}); |
|
|
if ($line =~ /^return_code:(\d+)$/) |
|
|
{ |
|
|
$return_code = $1; |
|
|
to_log($conf, {message => "return_code: [$return_code]", 'line' => __LINE__, level => 3}); |
|
|
next; |
|
|
} |
|
|
$output .= $line."\n"; |
|
|
to_log($conf, {message => "Output: [$line]", 'line' => __LINE__, level => 3}); |
|
|
} |
|
|
close $file_handle; |
|
|
|
|
|
to_log($conf, {message => "return_code: [$return_code], output: [$output]", 'line' => __LINE__, level => 3}); |
|
|
return($return_code, $output); |
|
|
} |
|
|
|
|
|
# This logs the details of this call. |
|
|
sub show_environment |
|
|
{ |
|
|
my ($conf, $level) = @_; |
|
|
|
|
|
foreach my $key (sort {$a cmp $b} keys %{$conf->{switches}}) |
|
|
{ |
|
|
next if $key eq "raw"; |
|
|
next if $conf->{switches}{$key} eq ""; |
|
|
to_log($conf, {message => "Command line switch: [$key] -> [".$conf->{switches}{$key}."]", 'line' => __LINE__, level => $level}); |
|
|
} |
|
|
foreach my $key (sort {$a cmp $b} keys %{$conf->{environment}}) |
|
|
{ |
|
|
next if $conf->{environment}{$key} eq ""; |
|
|
to_log($conf, {message => "OCF Environment variable: [$key] -> [".$conf->{environment}{$key}."]", 'line' => __LINE__, level => $level}); |
|
|
} |
|
|
foreach my $key (sort {$a cmp $b} keys %ENV) |
|
|
{ |
|
|
next if exists $conf->{environment}{$key}; |
|
|
to_log($conf, {message => "System Environment variable: [$key] -> [".$ENV{$key}."]", 'line' => __LINE__, level => ($level + 1)}); |
|
|
} |
|
|
|
|
|
return(0); |
|
|
} |
|
|
|
|
|
# This just prints a quick usage message for now. |
|
|
sub show_usage |
|
|
{ |
|
|
my ($conf) = @_; |
|
|
|
|
|
print "TODO: How to use this...\n"; |
|
|
|
|
|
exit(0); |
|
|
} |
|
|
|
|
|
# This prints out the metadata and exits. |
|
|
sub show_metadata |
|
|
{ |
|
|
my ($conf) = @_; |
|
|
|
|
|
# This is a pretty simple agent, by design. We only take a server name for now. |
|
|
print '<?xml version="1.0"?> |
|
|
<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd"> |
|
|
<resource-agent name="ocs:alteeve:server"> |
|
|
<version>0.1</version> |
|
|
<longdesc lang="en"> |
|
|
This resource agent manages KVM+qemu virtual servers on an Anvil! m3 Intelligent Availability(tm) system. |
|
|
It manages underlying components like DRBD 9 storage resources, brodge connections and so forth. |
|
|
</longdesc> |
|
|
<shortdesc lang="en">Anvil! m3 server resource agent</shortdesc> |
|
|
<parameters> |
|
|
<parameter name="name" unique="1" required="1"> |
|
|
<longdesc lang="en"> |
|
|
This is the name of the server as reported by virsh. |
|
|
</longdesc> |
|
|
<shortdesc lang="en">Server name</shortdesc> |
|
|
<content type="string"/> |
|
|
</parameter> |
|
|
</parameters> |
|
|
<actions> |
|
|
<action name="start" timeout="30" /> |
|
|
<action name="stop" timeout="600" /> |
|
|
<action name="monitor" timeout="10" interval="10" depth="0" /> |
|
|
<action name="notify" timeout="20" /> |
|
|
<action name="migrate_to" timeout="600" /> |
|
|
<action name="migrate_from" timeout="600" /> |
|
|
<action name="meta-data" timeout="5" /> |
|
|
<action name="validate-all" timeout="20" /> |
|
|
</actions> |
|
|
</resource-agent> |
|
|
'; |
|
|
|
|
|
exit(0); |
|
|
} |
|
|
|
|
|
# This gathers command line switches and stores them in 'swithes::<foo>'. |
|
|
sub get_switches |
|
|
{ |
|
|
my ($conf) = @_; |
|
|
|
|
|
my $last_argument = ""; |
|
|
$conf->{switches}{raw} = ""; |
|
|
foreach my $argument (@ARGV) |
|
|
{ |
|
|
to_log($conf, {message => "argument: [$argument]", 'line' => __LINE__, level => 3}); |
|
|
if ($last_argument eq "raw") |
|
|
{ |
|
|
# Don't process anything. |
|
|
$conf->{switches}{raw} .= " ".$argument; |
|
|
to_log($conf, {message => "switches::raw: [".$conf->{switches}{raw}."]", 'line' => __LINE__, level => 3}); |
|
|
} |
|
|
elsif ($argument =~ /^-/) |
|
|
{ |
|
|
# If the argument is just '--', appeand everything after it to 'raw'. |
|
|
if ($argument eq "--") |
|
|
{ |
|
|
$last_argument = "raw"; |
|
|
$conf->{switches}{raw} = ""; |
|
|
to_log($conf, {message => "switches::raw: [".$conf->{switches}{raw}."]", 'line' => __LINE__, level => 3}); |
|
|
} |
|
|
else |
|
|
{ |
|
|
($last_argument) = ($argument =~ /^-{1,2}(.*)/)[0]; |
|
|
to_log($conf, {message => "last_argument: [$last_argument]", 'line' => __LINE__, level => 3}); |
|
|
if ($last_argument =~ /=/) |
|
|
{ |
|
|
# Break up the variable/value. |
|
|
($last_argument, my $value) = (split /=/, $last_argument, 2); |
|
|
$conf->{switches}{$last_argument} = $value; |
|
|
to_log($conf, {message => "switches::${last_argument}: [".$conf->{switches}{$last_argument}."]", 'line' => __LINE__, level => 3}); |
|
|
} |
|
|
else |
|
|
{ |
|
|
$conf->{switches}{$last_argument} = "#!SET!#"; |
|
|
to_log($conf, {message => "switches::${last_argument}: [".$conf->{switches}{$last_argument}."]", 'line' => __LINE__, level => 3}); |
|
|
} |
|
|
} |
|
|
} |
|
|
else |
|
|
{ |
|
|
if ($last_argument) |
|
|
{ |
|
|
$conf->{switches}{$last_argument} = $argument; |
|
|
to_log($conf, {message => "switches::${last_argument}: [".$conf->{switches}{$last_argument}."]", 'line' => __LINE__, level => 3}); |
|
|
|
|
|
$last_argument = ""; |
|
|
to_log($conf, {message => "last_argument: [$last_argument]", 'line' => __LINE__, level => 3}); |
|
|
} |
|
|
else |
|
|
{ |
|
|
# Got a value without an argument. That's OK. |
|
|
$conf->{switches}{$argument} = "#!SET!#"; |
|
|
to_log($conf, {message => "switches::${argument}: [".$conf->{switches}{$argument}."]", 'line' => __LINE__, level => 3}); |
|
|
} |
|
|
} |
|
|
} |
|
|
|
|
|
# Clean up the initial space added to 'raw'. |
|
|
to_log($conf, {message => "switches::raw: [".$conf->{switches}{raw}."]", 'line' => __LINE__, level => 3}); |
|
|
if ($conf->{switches}{raw}) |
|
|
{ |
|
|
$conf->{switches}{raw} =~ s/^ //; |
|
|
to_log($conf, {message => "switches::raw: [".$conf->{switches}{raw}."]", 'line' => __LINE__, level => 3}); |
|
|
} |
|
|
|
|
|
return(0); |
|
|
} |
|
|
|
|
|
# This adds commas to long numbers. |
|
|
sub comma |
|
|
{ |
|
|
my ($conf, $number) = @_; |
|
|
|
|
|
return undef if not defined $number; |
|
|
|
|
|
# Strip out any existing commas. |
|
|
$number =~ s/,//g; |
|
|
|
|
|
# Record and remove the sign, if present. |
|
|
my $sign = ""; |
|
|
if ($number =~ /^\+/) |
|
|
{ |
|
|
$number =~ s/^\+//g; |
|
|
$sign = "+"; |
|
|
} |
|
|
elsif ($number =~ /^\-/) |
|
|
{ |
|
|
$number =~ s/^\-//g; |
|
|
$sign = "-"; |
|
|
} |
|
|
|
|
|
# Split on the left-most period. |
|
|
my ($whole, $decimal) = split/\./, $number, 2; |
|
|
$whole = "" if not defined $whole; |
|
|
$decimal = "" if not defined $decimal; |
|
|
|
|
|
# Now die if either number has a non-digit character in it. |
|
|
if (($whole =~ /\D/) or ($decimal =~ /\D/)) |
|
|
{ |
|
|
to_log($conf, {message => "We were asked to insert commas into a dumber that is not actually a number: [$number]. This is likely a symptom of a larger problem.", 'line' => __LINE__, level => 0, priority => "err"}); |
|
|
exit(1); |
|
|
} |
|
|
|
|
|
local($_) = $whole ? $whole : ""; |
|
|
|
|
|
1 while s/^(-?\d+)(\d{3})/$1,$2/; |
|
|
$whole = $_; |
|
|
|
|
|
my $return = $decimal ? $whole.".".$decimal : $whole; |
|
|
if ($sign) |
|
|
{ |
|
|
$return = $sign.$return; |
|
|
} |
|
|
|
|
|
return ($return); |
|
|
} |
|
|
|
|
|
# Log file entries |
|
|
sub to_log |
|
|
{ |
|
|
my ($conf, $parameters) = @_; |
|
|
|
|
|
my $facility = defined $parameters->{facility} ? $parameters->{facility} : $conf->{'log'}{facility}; |
|
|
my $level = defined $parameters->{level} ? $parameters->{level} : 1; |
|
|
my $line = defined $parameters->{'line'} ? $parameters->{'line'} : 0; |
|
|
my $message = defined $parameters->{message} ? $parameters->{message} : ""; |
|
|
my $priority = defined $parameters->{priority} ? $parameters->{priority} : ""; |
|
|
my $exit_code = defined $parameters->{exit_code} ? $parameters->{exit_code} : ""; |
|
|
|
|
|
# Leave if we don't care about this message |
|
|
return if $level > $conf->{'log'}{level}; |
|
|
return if not $message; |
|
|
|
|
|
# Build the message. We log the line |
|
|
if (($conf->{'log'}{line_numbers}) && ($line)) |
|
|
{ |
|
|
$message = $line."; ".$message; |
|
|
} |
|
|
|
|
|
my $priority_string = $facility; |
|
|
if ($priority) |
|
|
{ |
|
|
$priority_string .= ".".$priority; |
|
|
} |
|
|
elsif ($level eq "0") |
|
|
{ |
|
|
$priority_string .= ".notice"; |
|
|
} |
|
|
elsif (($level eq "1") or ($level eq "2")) |
|
|
{ |
|
|
$priority_string .= ".info"; |
|
|
} |
|
|
else |
|
|
{ |
|
|
$priority_string .= ".debug"; |
|
|
} |
|
|
|
|
|
# Clean up the string for bash |
|
|
$message =~ s/"/\\\"/gs; |
|
|
#$message =~ s/\(/\\\(/gs; |
|
|
|
|
|
my $shell_call = $conf->{path}{exe}{logger}." --priority ".$priority_string." --tag ".$conf->{'log'}{tag}." -- \"".$message."\""; |
|
|
open (my $file_handle, $shell_call." 2>&1 |") or die "Failed to call: [".$shell_call."]. The error was: $!\n"; |
|
|
while(<$file_handle>) |
|
|
{ |
|
|
# This should not generate output. |
|
|
chomp; |
|
|
my $line = $_; |
|
|
print "Unexpected logging output: [".$line."]\n"; |
|
|
} |
|
|
close $file_handle; |
|
|
|
|
|
if ($exit_code =~ /^\d+$/) |
|
|
{ |
|
|
exit($exit_code); |
|
|
} |
|
|
|
|
|
return(0); |
|
|
} |
|
|
|
|
|
# This checks the given paths and, if something isn't found, it searches PATH trying to find it. |
|
|
sub find_executables |
|
|
{ |
|
|
my ($conf) = @_; |
|
|
|
|
|
# Variables. |
|
|
my $check = ""; |
|
|
my $bad = 0; |
|
|
|
|
|
# Log entries can only happen if I've found 'logger', so an extra check will be made on 'to_log' |
|
|
# calls. |
|
|
my @dirs = split/:/, $ENV{PATH}; |
|
|
foreach my $exe (sort {$b cmp $a} keys %{$conf->{path}{exe}}) |
|
|
{ |
|
|
if ( not -e $conf->{path}{exe}{$exe} ) |
|
|
{ |
|
|
to_log($conf, {message => "The program: [$exe] is not at: [".$conf->{path}{exe}{$exe}."]. Looking for it now.", 'line' => __LINE__, level => 1}); |
|
|
foreach my $path (@dirs) |
|
|
{ |
|
|
$check = "$path/$exe"; |
|
|
$check =~ s/\/\//\//g; |
|
|
to_log($conf, {message => "Checking: [$check]", 'line' => __LINE__, level => 2}); |
|
|
if ( -e $check ) |
|
|
{ |
|
|
if (-e $conf->{path}{exe}{logger}) |
|
|
{ |
|
|
to_log($conf, {message => "Found it! Changed path for: [$exe] from: [".$conf->{path}{exe}{$exe}."] to: [$check]", 'line' => __LINE__, level => 1}); |
|
|
} |
|
|
else |
|
|
{ |
|
|
warn "DEBUG: Found it! Changed path for: [$exe] from: [".$conf->{path}{exe}{$exe}."] to: [$check]\n"; |
|
|
} |
|
|
$conf->{path}{exe}{$exe} = $check; |
|
|
} |
|
|
else |
|
|
{ |
|
|
to_log($conf, {message => "Not found.", 'line' => __LINE__, level => 2}); |
|
|
} |
|
|
} |
|
|
} |
|
|
else |
|
|
{ |
|
|
to_log($conf, {message => "Found!", 'line' => __LINE__, level => 3}); |
|
|
next; |
|
|
} |
|
|
|
|
|
# Make sure it exists now. |
|
|
to_log($conf, {message => "Checking again if: [$exe] is at: [".$conf->{path}{exe}{$exe}."].", 'line' => __LINE__, level => 3}); |
|
|
if (not -e $conf->{path}{exe}{$exe}) |
|
|
{ |
|
|
$bad = 1; |
|
|
if (-e $conf->{path}{exe}{logger}) |
|
|
{ |
|
|
to_log($conf, {message => "Failed to find executable: [$exe]. Unable to proceed.", 'line' => __LINE__, level => 0}); |
|
|
} |
|
|
else |
|
|
{ |
|
|
warn "Failed to find executable: [$exe]. Unable to proceed.\n"; |
|
|
} |
|
|
} |
|
|
} |
|
|
if ($bad) |
|
|
{ |
|
|
exit(1); |
|
|
} |
|
|
|
|
|
return(0); |
|
|
}
|
|
|
|
