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Local modifications to ClusterLabs/Anvil by Alteeve
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anvil/tools/striker-prep-database

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#!/usr/bin/perl
#
# This checks the state of the postgresql database server and, if necessary, configures it for external
# access, initializes it and gets it running.
#
# Exit codes;
# 0 = Normal exit.
# 1 = Failed to initialize postgres
# 2 = Failed to start postgres
# 3 = ScanCore user not set in the local ID in anvil.conf
# 4 = Failed to create the database user.
# 5 = PostgreSQL not installed.
use strict;
use warnings;
use Data::Dumper;
use Anvil::Tools;
my $THIS_FILE = ($0 =~ /^.*\/(.*)$/)[0];
my $running_directory = ($0 =~ /^(.*?)\/$THIS_FILE$/)[0];
if (($running_directory =~ /^\./) && ($ENV{PWD}))
{
$running_directory =~ s/^\./$ENV{PWD}/;
}
# Turn off buffering so that the pinwheel will display while waiting for the SSH call(s) to complete.
$| = 1;
my $anvil = Anvil::Tools->new();
$anvil->Get->switches;
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 2, secure => 0, key => "log_0115", variables => { program => $THIS_FILE }});
$anvil->System->_check_anvil_conf({debug => 2});
my $local_uuid = $anvil->Database->get_local_uuid();
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { local_uuid => $local_uuid }});
# If we didn't get the $local_uuid, then there is no entry for this system in anvil.conf yet, so we'll add it.
if (not $local_uuid)
{
$local_uuid = add_to_local_config($anvil);
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { local_uuid => $local_uuid }});
}
# Now configure!
if ($local_uuid)
{
# Start checks
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { "sys::service::postgresql" => $anvil->data->{sys}{daemon}{postgresql} }});
my $running = $anvil->System->check_daemon({debug => 3, daemon => $anvil->data->{sys}{daemon}{postgresql}});
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { running => $running }});
if ($running eq "2")
{
# Not installed.
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 0, priority => "err", key => "log_0144"});
$anvil->nice_exit({exit_code => 5});
}
elsif (not $running)
{
# Do we need to initialize the databae?
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { "path::configs::pg_hba.conf" => $anvil->data->{path}{configs}{'pg_hba.conf'} }});
if (-e $anvil->data->{path}{configs}{'pg_hba.conf'})
{
# It already exists.
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { "path::configs::pg_hba.conf" => $anvil->data->{path}{configs}{'pg_hba.conf'} }});
}
else
{
# Initialize.
my ($output, $return_code) = $anvil->System->call({debug => 2, shell_call => $anvil->data->{path}{exe}{'postgresql-setup'}." initdb", source => $THIS_FILE, line => __LINE__});
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
output => $output,
return_code => $return_code,
}});
# Did it succeed?
if (not -e $anvil->data->{path}{configs}{'pg_hba.conf'})
{
# Failed...
if ($output =~ /cannot create directory ‘(.*?)’: File exists/s)
{
my $file = $1;
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0139", variables => { file => $file }});
}
elsif ($output =~ /Initializing database ... failed, see (\/var\/.*?\.log)/s)
{
my $file = $1;
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0140", variables => { file => $file }});
}
else
{
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 0, priority => "err", key => "log_0050"});
}
$anvil->nice_exit({exit_code => 1});
}
else
{
# Initialized!
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0055"});
}
# Setup postgresql.conf
my $postgresql_backup = $anvil->data->{path}{directories}{backups}."/pgsql/postgresql.conf";
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { postgresql_backup => $postgresql_backup }});
$anvil->Storage->copy_file({
source_file => $anvil->data->{path}{configs}{'postgresql.conf'},
target_file => $postgresql_backup,
});
my $postgresql_conf = $anvil->Storage->read_file({file => $anvil->data->{path}{configs}{'postgresql.conf'}});
my $update_file = 1;
my $new_postgresql_conf = "";
foreach my $line (split/\n/, $postgresql_conf)
{
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { line => $line }});
if ($line =~ /^listen_addresses = '\*'/)
{
# No need to update.
$update_file = 0;
last;
}
elsif ($line =~ /^#listen_addresses = 'localhost'/)
{
# Inject the new listen_addresses
$new_postgresql_conf .= "listen_addresses = '*'\n";
}
$new_postgresql_conf .= $line."\n";
}
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { update_file => $update_file }});
if ($update_file)
{
$anvil->Storage->write_file({
debug => 3,
file => $anvil->data->{path}{configs}{'postgresql.conf'},
body => $new_postgresql_conf,
user => "postgres",
group => "postgres",
mode => "0600",
overwrite => 1,
});
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0056", variables => { file => $anvil->data->{path}{configs}{'postgresql.conf'} }});
}
# Setup pg_hba.conf now
my $pg_hba_backup = $anvil->data->{path}{directories}{backups}."/pgsql/pg_hba.conf";
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { pg_hba_backup => $pg_hba_backup }});
$anvil->Storage->copy_file({
source_file => $anvil->data->{path}{configs}{'pg_hba.conf'},
target_file => $pg_hba_backup,
});
my $pg_hba_conf = $anvil->Storage->read_file({file => $anvil->data->{path}{configs}{'pg_hba.conf'}});
$update_file = 1;
my $new_pg_hba_conf = "";
foreach my $line (split/\n/, $pg_hba_conf)
{
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { line => $line }});
if ($line =~ /^host\s+all\s+all\s+\all\s+md5$/)
{
# No need to update.
$update_file = 0;
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { update_file => $update_file }});
last;
}
elsif ($line =~ /^# TYPE\s+DATABASE/)
{
# Inject the new listen_addresses
$new_pg_hba_conf .= $line."\n";
$new_pg_hba_conf .= "host\tall\t\tall\t\tall\t\t\tmd5\n";
}
else
{
$new_pg_hba_conf .= $line."\n";
}
}
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { update_file => $update_file }});
if ($update_file)
{
$anvil->Storage->write_file({
debug => 3,
file => $anvil->data->{path}{configs}{'pg_hba.conf'},
body => $new_pg_hba_conf,
user => "postgres",
group => "postgres",
mode => "0600",
overwrite => 1,
});
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0057", variables => { file => $anvil->data->{path}{configs}{'pg_hba.conf'} }});
}
}
# Start the daemon. '0' = started, anything else is a problem.
my $return_code = $anvil->System->start_daemon({debug => 2, daemon => $anvil->data->{sys}{daemon}{postgresql}});
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { return_code => $return_code }});
if ($return_code eq "0")
{
# Started the daemon.
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0059"});
# Make sure it is enabled on boot.
my $return_code = $anvil->System->enable_daemon({debug => 2, daemon => $anvil->data->{sys}{daemon}{postgresql}});
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { return_code => $return_code }});
}
else
{
# Failed to start
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 0, priority => "err", key => "log_0094"});
$anvil->nice_exit({exit_code => 2});
}
}
# Create the .pgpass file, if needed.
my $created_pgpass = 0;
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, secure => 1, list => {
'path::secure::postgres_pgpass' => $anvil->data->{path}{secure}{postgres_pgpass},
"database::${local_uuid}::password" => $anvil->data->{database}{$local_uuid}{password},
}});
if ((not -e $anvil->data->{path}{secure}{postgres_pgpass}) && ($anvil->data->{database}{$local_uuid}{password}))
{
my $body = "*:*:*:postgres:".$anvil->data->{database}{$local_uuid}{password}."\n";
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, secure => 1, list => { body => $body }});
$anvil->Storage->write_file({
debug => 3,
file => $anvil->data->{path}{secure}{postgres_pgpass},
body => $body,
user => "postgres",
group => "postgres",
mode => "0600",
overwrite => 1,
secure => 1,
});
if (-e $anvil->data->{path}{secure}{postgres_pgpass})
{
$created_pgpass = 1;
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { created_pgpass => $created_pgpass }});
}
}
# Does the database user exist?
my $create_user = 1;
my $database_user = $anvil->data->{database}{$local_uuid}{user} ? $anvil->data->{database}{$local_uuid}{user} : $anvil->data->{sys}{database}{user};
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { database_user => $database_user }});
if (not $database_user)
{
# No database user defined
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 0, priority => "err", key => "log_0099", variables => { uuid => $local_uuid }});
$anvil->nice_exit({exit_code => 3});
}
my ($user_list, $return_code) = $anvil->System->call({debug => 2, shell_call => $anvil->data->{path}{exe}{su}." - postgres -c \"".$anvil->data->{path}{exe}{psql}." template1 -c 'SELECT usename, usesysid FROM pg_catalog.pg_user;'\"", source => $THIS_FILE, line => __LINE__});
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
user_list => $user_list,
return_code => $return_code,
}});
foreach my $line (split/\n/, $user_list)
{
if ($line =~ /^ $database_user\s+\|\s+(\d+)/)
{
# User exists already
my $id = $1;
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 2, key => "log_0060", variables => { user => $database_user, id => $id }});
$create_user = 0;
last;
}
}
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { create_user => $create_user }});
if ($create_user)
{
# Create the user
my ($create_output, $return_code) = $anvil->System->call({debug => 2, shell_call => $anvil->data->{path}{exe}{su}." - postgres -c \"".$anvil->data->{path}{exe}{createuser}." --no-superuser --createdb --no-createrole $database_user\"", source => $THIS_FILE, line => __LINE__});
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
create_output => $create_output,
user_list => $user_list,
}});
(my $user_list, $return_code) = $anvil->System->call({debug => 2, shell_call => $anvil->data->{path}{exe}{su}." - postgres -c \"".$anvil->data->{path}{exe}{psql}." template1 -c 'SELECT usename, usesysid FROM pg_catalog.pg_user;'\"", source => $THIS_FILE, line => __LINE__});
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
create_output => $create_output,
user_list => $user_list,
}});
my $user_exists = 0;
foreach my $line (split/\n/, $user_list)
{
if ($line =~ /^ $database_user\s+\|\s+(\d+)/)
{
# Success!
my $id = $1;
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0095", variables => { user => $database_user, id => $id }});
$user_exists = 1;
last;
}
}
if (not $user_exists)
{
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 0, priority => "err", key => "log_0096", variables => { user => $database_user }});
$anvil->nice_exit({exit_code => 4});
}
# Update/set the passwords.
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, secure => 1, list => { "database::${local_uuid}::password" => $anvil->data->{database}{$local_uuid}{password} }});
if ($anvil->data->{database}{$local_uuid}{password})
{
foreach my $user ("postgres", $database_user)
{
my ($update_output, $return_code) = $anvil->System->call({secure => 1, shell_call => $anvil->data->{path}{exe}{su}." - postgres -c \"".$anvil->data->{path}{exe}{psql}." template1 -c \\\"ALTER ROLE $user WITH PASSWORD '".$anvil->data->{database}{$local_uuid}{password}."';\\\"\"", source => $THIS_FILE, line => __LINE__});
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, secure => 1, list => {
update_output => $update_output,
return_code => $return_code,
}});
foreach my $line (split/\n/, $user_list)
{
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { line => $line }});
if ($line =~ /ALTER ROLE/)
{
# Password set
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0100", variables => { user => $user }});
}
}
}
}
}
# Create the database, if needed.
my $create_database = 1;
my $database_name = $anvil->data->{database}{$local_uuid}{name} ? $anvil->data->{database}{$local_uuid}{name} : $anvil->data->{sys}{database}{name};
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { database_name => $database_name }});
undef $return_code;
(my $database_list, $return_code) = $anvil->System->call({shell_call => $anvil->data->{path}{exe}{su}." - postgres -c \"".$anvil->data->{path}{exe}{psql}." template1 -c 'SELECT datname FROM pg_catalog.pg_database;'\"", source => $THIS_FILE, line => __LINE__});
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
database_list => $database_list,
return_code => $return_code,
}});
foreach my $line (split/\n/, $database_list)
{
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { line => $line }});
if ($line =~ /^ $database_name$/)
{
# Database already exists.
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 3, key => "log_0105", variables => { database => $database_name }});
$create_database = 0;
last;
}
}
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 3, list => { create_database => $create_database }});
if ($create_database)
{
my ($create_output, $return_code) = $anvil->System->call({shell_call => $anvil->data->{path}{exe}{su}." - postgres -c \"".$anvil->data->{path}{exe}{createdb}." --owner ".$database_user." ".$database_name."\"", source => $THIS_FILE, line => __LINE__});
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
create_output => $create_output,
return_code => $return_code,
}});
undef $return_code;
my $database_exists = 0;
(my $database_list, $return_code) = $anvil->System->call({shell_call => $anvil->data->{path}{exe}{su}." - postgres -c \"".$anvil->data->{path}{exe}{psql}." template1 -c 'SELECT datname FROM pg_catalog.pg_database;'\"", source => $THIS_FILE, line => __LINE__});
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
database_list => $database_list,
return_code => $return_code,
}});
foreach my $line (split/\n/, $database_list)
{
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => { line => $line }});
if ($line =~ /^ $database_name$/)
{
# Database created
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "log_0110", variables => { database => $database_name }});
$database_exists = 1;
last;
}
}
if (not $database_exists)
{
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 0, priority => "err", key => "log_0109", variables => { database => $database_name }});
$anvil->nice_exit({exit_code => 5});
}
}
# Remove the temporary password file.
if (($created_pgpass) && (-e $anvil->data->{path}{secure}{postgres_pgpass}))
{
unlink $anvil->data->{path}{secure}{postgres_pgpass};
if (-e $anvil->data->{path}{secure}{postgres_pgpass})
{
# Failed to unlink the file.
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 0, priority => "alert", key => "log_0107"});
}
}
#####################################################################################################
# NOTE: Below here is stuff that is for general setup. If it grows, we'll have to rename this tool. #
#####################################################################################################
### TODO: This will need to set the proper SELinux context.
# Apache run scripts can't call the system UUID, so we'll write it to a text file.
if (not -e $anvil->data->{path}{data}{host_uuid})
{
$anvil->Storage->write_file({
debug => 3,
file => $anvil->data->{path}{data}{host_uuid},
body => $anvil->Get->host_uuid,
user => "apache",
group => "apache",
mode => "0666",
overwrite => 0,
});
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "message_0011", variables => { file => $anvil->data->{path}{configs}{'postgresql.conf'} }});
}
# Log level 3 creates so much logging that it hits journald's rate limiting (1000 logs per 30
# seconds). So we need to disable it.
if (not -e $anvil->data->{path}{configs}{'journald_anvil'})
{
# Write the file to disable journald rate limiting.
my $body = "# This disables the rate limiting so that when log level is set to 3, log
# entries aren't lost. If you want to override this, don't delete the file,
# just comment out the lines below.
[Journal]
RateLimitInterval=0
RateLimitBurst=0
";
$anvil->Storage->write_file({
debug => 3,
file => $anvil->data->{path}{configs}{'journald_anvil'},
body => $body,
user => "root",
group => "root",
mode => "0644",
overwrite => 0,
});
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 1, key => "message_0012", variables => { file => $anvil->data->{path}{configs}{'journald_anvil'} }});
my ($output, $return_code) = $anvil->System->call({debug => 3, shell_call => $anvil->data->{path}{exe}{systemctl}." restart systemd-journald.service", source => $THIS_FILE, line => __LINE__});
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
output => $output,
return_code => $return_code,
}});
}
}
else
{
# Didn't find an entry for this machine. This is normal on nodes.
$anvil->Log->entry({source => $THIS_FILE, line => __LINE__, level => 2, key => "log_0143"});
}
$anvil->nice_exit({exit_code => 0});
#############################################################################################################
# Functions #
#############################################################################################################
# This adds this machine to the local anvil.conf file.
sub add_to_local_config
{
my ($anvil) = @_;
# Write the password to a file.
my $password_file = "/tmp/striker-manage-peers.".$anvil->Get->uuid;
$anvil->Storage->write_file({
debug => 3,
secure => 1,
file => $password_file,
body => "Initial1",
mode => "0600",
overwrite => 1,
});
# Make the shell call, and parse the output looking for our own entry
my $host_uuid = $anvil->Get->host_uuid();
my ($output, $return_code) = $anvil->System->call({
debug => 2,
shell_call => $anvil->data->{path}{exe}{'striker-manage-peers'}." --add --host-uuid ".$anvil->Get->host_uuid." --host localhost --port 5432 --password-file ".$password_file." --ping 0".$anvil->Log->switches,
source => $THIS_FILE,
line => __LINE__,
});
$anvil->Log->variables({source => $THIS_FILE, line => __LINE__, level => 2, list => {
output => $output,
return_code => $return_code,
}});
# Remove the password.
unlink $password_file;
# Re-read the config and make sure we have our own entry.
$anvil->Storage->read_config({file => $anvil->data->{path}{configs}{'anvil.conf'}});
# If we still don't have a local_uuid, something went wrong.
if (not $anvil->data->{database}{$host_uuid}{host})
{
print $anvil->Words->string({key => "error_0010"})."\n";
$anvil->nice_exit({exit_code => 1});
}
return($host_uuid);
}