Commit Graph

29 Commits

Author SHA1 Message Date
Digimer
4b9ec56106 * Updated DRBD->delete_resource() to return a success if asked to delete a non-existent resource (as can happen when partial anvil-delete-server runs are re-run).
* Reworked DRBD->get_next_resource() to pull from the database, and to no longer do that increments-of-three nonsense. Avoidable complexity. Also added a call to Cluster->get_anvil_uuid() if the 'anvil_uuid' parameter wasn't passed.
* Updated Database->get_host_from_uuid() and ->get_hosts() to now take 'include_deleted' parameter and default to not returning deleted hosts. This fixed issues where anvil-{delete,provision}-server calls could assign jobs to now-deleted hosts with reused host names.
* Updated anvil-delete-server to print log entries to STDOUT. Also updated it to not wait of shutdown of a server in pacemaker to complete, and instead to destroy it after calling pacemaker's resource stop. Updated to also check to see if the server being deleted is already out of pacemaker and, if so, skip that step and directly try to destroy the server, if it's running.
* Updated anvil-provision-server to force 'peer_mode' runs to pull their TCP Port and DRBD minor numbers from the job. This fixes a bug where the same resource on two machines could use different TCP ports.

Signed-off-by: Digimer <digimer@alteeve.ca>
2021-02-02 23:09:47 -05:00
Digimer
864d67b0a7 * Finished fixing automatic building of Storage Groups on systems where VGs are deleted.
Signed-off-by: Digimer <digimer@alteeve.ca>
2021-01-30 18:25:24 -05:00
Digimer
413a4f73c2 * Updated Tools->_anvil_version() and Get->anvil_version() to now pick up a SchemaVersion from anvil.sql. This will change only when the schema changes and is used when Database->connect() is checking compatibility with other anvil database hosts. This will make it only break connection when there is a reason to do so. The anvil_version still remains as an informational version that will help when supporting users later.
* Updated Cluster->add_server() to now set failure timeouts to actual numbers instead of INFINITY after discovering that INFINITY doesn't work in those cases.
* Updated Databsae->get_hosts to now check if other entries have the same host name, and if so, to set their host_key to 'DELETED'. This should make it easier to handle when a hardware machine is replaced by new hardware but uses the same host_name.
* Updated Email->check_queue() to start and enable postfix.service if it's found to not be running.
* Updated Get->available_resources() to return '!!no_data!!' when a given host hasn't got any data in scan_lvm_vgs. Now use this in anvil-provision-server to exit if a node or dr host hasn't run scancore yet.
* Fixed a bug in scan-lvm where the pvs_uuid wasn't being loaded properly, preventing lost PVs, VGs and LVs from being flagged as deleted.
* Started work on anvil-migate-server, though it's far from complete.

Signed-off-by: Digimer <digimer@alteeve.ca>
2021-01-30 14:03:13 -05:00
Digimer
89dec8e1f9 * Finished anvil-delete-server! (More testing needed though)
* Fixed a bug in Cluster->shutdown_server() where the wrong variable was being evaluated when checking the server state.
* Created DRBD->delete_resource() that deletes a resource's backing device and configuration. Note that this wipes the DRBD MD and and FS signatures before removing the LV. Updated DRBD->gather_data() to record the backing devices for volumes.

Signed-off-by: Digimer <digimer@alteeve.ca>
2021-01-26 01:45:17 -05:00
Digimer
549dbad635 * Created Cluster->delete_server(), which deletes a server resource from pacemaker (stopping it first, if needed).
* Fixed a bug in Cluster->parse_cib() when a server that is off wasn't setting 'status'.
* Renamed 'server::location::<server>::host' to '...::host_name' in several places.
* Got more work done on anvil-delete-server, up to the point where it calls the new Cluster->delete_server() method.
* Updated fence_pacemaker to call 'drbdadm adjust all' to dampen an issue where in-memory fence configs seem to change, preventing reconnection of the peer after it reboots from the fence. More testing needed on this issue.

Signed-off-by: Digimer <digimer@alteeve.ca>
2021-01-25 01:00:55 -05:00
Digimer
05b1fccdb3 * Created Cluster->add_server() which, well, adds a server to a pacemaker cluster, including sorting out location constraints to favour the node the server is running on, if it's running.
* Removed the exit-if-no-DB check in ocf:alteeve:server so that (hopefully, needs testing), running servers won't be impacted if the nodes lost contact with both/all strikers.
* Updated scan-server to make an explicit check for missing XML definition files on startup and write them if needed.
* Very beginning work on anvil-delete-server has been started.
* Updated anvil-provision-server to wait when it's running in peer mode until the new XML definition is in the DB and then write it out to disk before exiting. Also updated it to add the new server to pacemaker before exiting.

Signed-off-by: Digimer <digimer@alteeve.ca>
2021-01-18 00:38:06 -05:00
Digimer
a7f0676a0f * Got the 'anvil-provision-server' script to the point where it actually saves the new server job.
* Created the new method Cluster->get_primary_host_uuid() that returns the 'host_uuid' of the primary node in the given cluster. This is useful for external programs to figure out which node is primary. Example is provisioning a new server being assigned to the active node. Also created ->is_primary() that is a similar test to see if the active node is the primary node or not.
* Updated Cluster->parse_cib() and ->parse_crm_mon() to work on remote hosts.
* Updated Database->get_hosts() to store the short host names.
* Created Get->host_from_ip_address() that translates an IP address to a host_uuid and host_name, if it's an IP assigned currently to a known host.
* Created Network->find_target_ip() that simplifies finding which IP address to use when the caller wants to connect to a target host.
* Reworked the anvil-join-anvil to parse fence_arguments in a way that handles passwords with spaces in them.

Signed-off-by: Digimer <digimer@alteeve.ca>
2021-01-12 21:29:01 -05:00
Digimer
f30cce3c5a * Created the new tools/anvil-provision-server tool which will handle provisioning new servers, as well as having an interactive menu system to provision servers from the command line.
* Created Cluster->assemble_storage_groups() and moved the logic to auto-assemble groups out of Get->available_resources().
* Created Cluster->get_anvil_name() that will return an Anvil! name for a given anvil_uuid, or the name of the Anvil! if the host is a member of an Anvil!.
* Updated Cluster->get_anvil_uuid() to return the 'anvil_uuid' if passed a specific 'anvil_name'.
* Updated Jobs->clear() to use 'switches::job-uuid' when a job_uuid is not passed but the value exists in 'switches::job-uuid'.

Signed-off-by: Digimer <digimer@alteeve.ca>
2020-12-30 04:35:39 -05:00
Digimer
d677d19ca0 * Moved Database->check_condition_age to Alert.
* Created (but not finished) scan-apc-pdu
* Added support to tracking maintenance-mode for nodes in Cluster->parse_cib
* Created Remote->read_snmp_oid().
* Created Server->get_definition.
* Updated Server->get_status() to write-out server XML files on-demand.
* Finished scan-cluster.

Signed-off-by: Digimer <digimer@alteeve.ca>
2020-10-23 01:28:21 -04:00
Digimer
33101f969a * Fixed several bugs related to tracking server boots, migrations and shut downs in the anvil database. The 'ocf:alteeve:server' now has (mostly?) safe integration with the Anvil! database. This was mostly done by updating Servers->boot_virsh(), ->shutdown_virsh() and ->migrate_server().
* Updates servers -> server_host_uuid to drop the 'NOT NULL' constraint.
* Created the new Get->server_uuid_from_name() that does what it says on the tin. Fixed a bug in ->host_uuid_from_name() where the host name was being returned instead of the UUID.

Signed-off-by: Digimer <digimer@alteeve.ca>
2020-10-07 02:40:31 -04:00
Digimer
262cbccb35 * Finished scan-server, though lots of testing needed.
* Renamed servers -> 'server_clean_stop' to 'server_user_stop' to make it clearer what the column represents.

Signed-off-by: Digimer <digimer@alteeve.ca>
2020-10-05 00:15:44 -04:00
Digimer
46f1a05789 * Got the code in scan-server to the point where it _should_ now gracefully and automatically detect changes to a server's definition originatin from the database (via Striker), directly editing the on-disk definition file, or editing via libvirt tools (like virt-manager). Still needs to be tested though.
* Updated Server->migrate_virsh() to set 'servers' -> 'server_state' to 'migrating' and clear it again once the migation completes. Also added support for cold (frozen) versus live migrations.
* Updated Cluster->parse_cib() to check if a server with the server_state set to 'migrating' isn't actually migrating anymore and, if not, to clear that state. This is needed as scan-server will blindly ignore/skip any migrating server, and if a migration call is interrupted, the state could get stuck.
* Updated the 'servers' database table (and associated Database methods) to add columns for;
** server_ram_in_use      - tracking RAM used by a running server
** server_configured_ram  - RAM allocated to a running server (used with the above to alert a user and track _currently_ available RAM)
** server_updated_by_user - To be set by Striker tools to indicate when the user made a change that needs to push out to nodes / running server.
** server_boot_time       - Tracks the unixtime when the server booted (to track uptime even if the server migrates across nodes).
* Created Get->anvil_name_from_uuid() to easily convert an Anvil! UUID into a name. Also created ->host_uuid_from_name() to translate a host name into a host UUID.
* Created Server->get_runtime() that translates a server name into a process ID and then uses that to determine how long (in seconds) it has been running. This is used when a server transitions from 'shut off' to 'running' to determine exactly when the server booted (current time - runtime).
* Renamed all 'Server->parse_definition' calls that used 'from_memory' to 'from_virsh' to clarify the data source.
* Made scan-hardware smarter about RAM change alerts.
* Updated scancore to load agent strings on startup so that processing pending alerts works properly.

Signed-off-by: Digimer <digimer@alteeve.ca>
2020-10-02 02:13:34 -04:00
Digimer
1a1fa7ce88 * Created Cluster->get_anvil_uuid() that returns the 'anvil_uuid' of a given 'host_uuid'.
* Renamed the 'defitintions' table to 'server_definitions' to clarify the purpose, and made all the 'server' columns have then 'not null' constraint.
* Created Database->insert_or_update_servers(), ->get_servers(), ->insert_or_update_server_definitions() and ->get_server_definitions().
* Updated scancore, anvil-daemon, and scan agents to not run unless they're run with root privs.
* Got scan-server to update the servers / server_definition tables and the on-disk file when needed.

Signed-off-by: Digimer <digimer@alteeve.ca>
2020-09-28 00:20:13 -04:00
Digimer
e6e4c7d530 * Moved Server->_parse_definition() to -> parse_definition() to make it a publid method.
* Began (but haven't finished) Database->insert_or_update_servers().
* Created Storage->get_file_stats() to collect the (l)stat information for a file.
* Got more work done on scan-server.

Signed-off-by: Digimer <digimer@alteeve.ca>
2020-09-26 01:45:08 -04:00
Digimer
e240a32a19 * Created Cluster->parse_crm_mon and updated Cluster->parse_cib() to determine what state a server is in and which host has a server.
* Added support in anvil.conf to disable scan agents with 'scancore::<agent_name>::disable', and added handling this to agents. Also allowed for '--force' to override this setting.
* Updated ScanCore->agent_startup() to allow for empty scan agent table lists.

Signed-off-by: Digimer <digimer@alteeve.ca>
2020-09-24 18:16:05 -04:00
Digimer
4dfe0cb5a0 * Created Cluster->boot_server, ->shutdown_server and ->migrate_server methods that handle booting, migrating and shutting down servers. Also created the private method ->_set_server_constraint which is used by migrate and boot to set resource constraints to control where a server boots or migrates to.
* Did more work on parsing server data out of the CIB. There is still an issue with determining which node currently hosts a resource, however.
* Renamed Server->boot to ->boot_virsh, ->shutdown to ->shutdown_virsh and ->migrate to ->migrate_virsh to clarify that these methods work on the raw virsh calls, outside of pacemaker (indeed, they are what the pacemaker RA uses to do what pacemaker asks).
* Got more work done on the scan-cluster SA.
* Created the empty files for the pending scan-server SA.

Signed-off-by: Digimer <digimer@alteeve.ca>
2020-09-24 02:09:18 -04:00
Digimer
0f7267eae1 * Moved the '_host_name', '_short_host_name', and '_domain_name' private methods in Tools.pm over to Get.pm (removing the leading '_' in the method names).
* Created 'Cluster->which_node' that returns 'node1' or 'node2' to indicate which node a host is.
* Continued working on scan_cluster; decided to make it not host-dependent.

Signed-off-by: Digimer <digimer@alteeve.ca>
2020-09-20 00:27:36 -04:00
Digimer
b2c7fd95fb * Renamed the ScanCore unit file to scancore.
* Added support to parsing location contraints to Cluster->parse_cib

Signed-off-by: Digimer <digimer@alteeve.ca>
2020-08-24 12:54:31 -04:00
Digimer
1498e1b53c * Got server migration working using ocf:alteeve:server in a test environment!
* Converted most 'eval { }' calls to localize $@ and test the output of the eval, instead of checking to see if $@ was set.
* Converted all 'local' hash references to instead use the short host name of the local machine as a new standard.

Signed-off-by: Digimer <digimer@alteeve.ca>
2020-08-19 18:54:09 -04:00
Digimer
47203490a9 * Working on getting live migration to work with ocf:anvil:striker using the environment variables that pacemaker sets. Incomplete, but getting close.
* Added support to Cluster->parce_cib() to track if maintenance mode is set.

Signed-off-by: Digimer <digimer@alteeve.ca>
2020-08-17 11:55:49 -04:00
Digimer
c27cc7507f * Renamed striker-parse-fence-agents to anvil-parse-fence-agents and changed anvil-daemon to run it on all machines.
* Cleaned up a lot of logging.
* Updated Cluster->parse_cib() to track if a stonith device has 'delay' set.
* Got a lot more work done on anvil-join-anvil's stonith processing, but it still isn't complete. Updated it to change shell user passwords as well.

Signed-off-by: Digimer <digimer@alteeve.ca>
2020-08-06 01:20:53 -04:00
Digimer
61f4dcc41f * Updated Cluster->parse_cib() to pull out fencing (stonith) devices and levels.
Signed-off-by: Digimer <digimer@alteeve.ca>
2020-07-31 01:45:20 -04:00
Digimer
3c2f25a860 * Added 'fence_delay' fence agent to handle the corner cases where an IPMI BMC had crashed until a power cycle, and PDU fencing was effected, but failed to report as such.
* Updated Cluster->parse_cib() to take a CIB as a parameter.
* Fixed a bug in Database->get_hosts() where loading the host_ipmi value was filtered through Log->is_secure.
* Updated Striker->get_fence_data() to parse the switches to make it easier to map a fence agent's command line switches to STDIN arguments.
* Created System->parse_arguments() that converts a series of command line switches and their values into a hash. It's similar to Get->switches(), but works on any string.
* Continued work on anvil-join-anvil's fence configuration logic.

Signed-off-by: Digimer <digimer@alteeve.ca>
2020-07-30 00:23:47 -04:00
Digimer
345d2e33d4 * Updated Cluster->parse_cib() to pre-fill some hashes to avoid undefined errors.
* Updated Storage->rsync() to only create the rsync wrapper if a password was given, allowing for rsync to work to/from a remote system when passwordless SSH is enabled.
* Updated anvil-join-anvil to disable/stop drbd.service, and to properly wait until both nodes are online.

Signed-off-by: Digimer <digimer@alteeve.ca>
2020-07-16 12:40:53 -04:00
Digimer
dcd1fd1492 * Created Cluster->check_node_status() that checks the status of a node (in pacemaker).
* Created Cluster->get_peers() that figures out who the peer node (and DR host, if applicable) are.
* Updated Cluster->parse_cib() to dig out more information.
* Created Cluster->start_cluster() to start pacemaker (via pcsd) locally or on all (both) nodes.
* Started working on ocf:alteeve:server to start/stop the libvirtd/drbd daemons as needed, instead of having pacemaker do it.
* Got more work done on anvil-join-anvil. Node 2 now waits for the cluster to start, and node 1 will do setup as needed, then wait for the cluster to start as well.

Signed-off-by: Digimer <digimer@alteeve.ca>
2020-07-15 18:40:37 -04:00
Digimer
2692a4219e * Reworked Cluster->parse_cib to use 'id' instead of name or other values to store data in the hash. Added parsing of clone data.
Signed-off-by: Digimer <digimer@alteeve.ca>
2020-07-12 02:06:57 -04:00
Digimer
0bcb026eaf * Removed cib.xml samples.
Signed-off-by: Digimer <digimer@alteeve.ca>
2020-07-12 00:58:35 -04:00
Digimer
62d0a2aa39 * Created Cluster->parse_cib() that parses pacemaker's CIB (cluster information base) XML. This also switches to the XML::LibXML, starting the replacement of XML::Simple. It's far from finished, but parses out basic node data and fence data.
Signed-off-by: Digimer <digimer@alteeve.ca>
2020-07-11 23:26:19 -04:00
Digimer
597d9413a5 * Created the skeleton Cluster.pm.
* Got anvil-join-anvil to the point where is initializes and starts the cluster.
* Deleted the old ssh key handling logic in anvil-daemon.

Signed-off-by: Digimer <digimer@alteeve.ca>
2020-07-10 00:49:30 -04:00