class zulip_ops::postgres_appdb {
  include zulip_ops::base
  include zulip::postgres_appdb_tuned

  $common_packages = ['xfsprogs']
  package { $common_packages: ensure => 'installed' }

  $wal_g_version = '0.2.15'
  $wal_g_hash = 'ea33c2341d7bfb203c6948590c29834c013ab06a28c7a2b236a73d906f785c84'
  exec {'install-wal-g':
    command => "${::zulip_scripts_path}/setup/install-wal-g.sh ${wal_g_version} ${wal_g_hash}",
    creates => "/usr/local/bin/wal-g-${wal_g_version}",
  }
  file { '/usr/local/bin/wal-g':
    ensure => 'link',
    target => "/usr/local/bin/wal-g-${wal_g_version}",
  }
  cron { 'pg_backup_and_purge':
    ensure      => present,
    command     => '/usr/local/bin/pg_backup_and_purge',
    environment => 'PATH=/bin:/usr/bin:/usr/local/bin',
    hour        => 5,
    minute      => 0,
    target      => 'postgres',
    user        => 'postgres',
    require     => [
      File['/usr/local/bin/pg_backup_and_purge'],
      Package[
        "postgresql-${zulip::base::postgres_version}",
        'python3-dateutil',
      ],
    ],
  }

  file { '/etc/sysctl.d/40-postgresql.conf':
    ensure => file,
    owner  => 'root',
    group  => 'root',
    mode   => '0644',
    source => 'puppet:///modules/zulip_ops/postgresql/40-postgresql.conf',
  }
  exec { 'sysctl_p':
    command     => '/sbin/sysctl -p /etc/sysctl.d/40-postgresql.conf',
    subscribe   => File['/etc/sysctl.d/40-postgresql.conf'],
    refreshonly => true,
  }

  file { '/root/setup_disks.sh':
    ensure => file,
    owner  => 'root',
    group  => 'root',
    mode   => '0744',
    source => 'puppet:///modules/zulip_ops/postgresql/setup_disks.sh',
  }
  exec { 'setup_disks':
    command => '/root/setup_disks.sh',
    require => Package["postgresql-${zulip::base::postgres_version}", 'xfsprogs'],
    unless  => 'test $(readlink /var/lib/postgresql) = "/srv/postgresql/" -a -d /srv/postgresql',
  }

  file { "${zulip::postgres_appdb_base::postgres_confdir}/pg_hba.conf":
    ensure  => file,
    require => Package["postgresql-${zulip::base::postgres_version}"],
    owner   => 'postgres',
    group   => 'postgres',
    mode    => '0640',
    source  => 'puppet:///modules/zulip_ops/postgresql/pg_hba.conf',
  }
}