postgresql/defaults/main.yaml

postgresql_version: "15.3"

# Options
postgresql_install_official_repo: true
postgresql_play_group: "postgresql"
postgresql_superuser_db: "postgres"
postgresql_superuser_username: "postgres"
postgresql_superuser_password: "postgres"

# SSL options
postgresql_ssl: true
postgresql_ssl_keep_nonssl_endpoint: false
postgresql_self_signed_cert: true
postgresql_self_signed_cert_name: "cert"

## WAL-G backup and restore options
postgresql_wal_g_install: false
postgresql_wal_g_restore_from_backup: false
postgresql_wal_g_force_delete_and_restore: false
postgresql_wal_g_config_name: ".walg.json"
postgresql_wal_g_restore_config_name: ".walg-restore.json"
postgresql_wal_g_pitr: 'latest'
postgresql_wal_g_restore_backup_name: 'LATEST'
postgresql_wal_g_binary_name: "wal-g-pg"

postgresql_recovery_target_time: ""
postgresql_promote_trigger_file: "{{ postgresql_data_dir }}/promote.trigger"

postgresql_password_encryption_algorithm: "scram-sha-256"
postgresql_default_parameters:
  data_directory: '{{ postgresql_data_dir }}'
  archive_mode: "{{ postgresql_archive_mode | default('on') }}" 
  listen_addresses: '*'
  max_connections: '1000'
  superuser_reserved_connections: '5'
  shared_buffers: '{{ (ansible_memory_mb.real.total * 0.25) | round | int }}MB'
  huge_pages: 'try'
  dynamic_shared_memory_type: 'posix'
  max_worker_processes: '{{ ansible_processor_vcpus }}'
  max_parallel_workers: '{{ ansible_processor_vcpus }}'
  max_parallel_workers_per_gather: '{{ (ansible_processor_vcpus / 2) | round | int }}'
  max_parallel_maintenance_workers: '{{ (ansible_processor_vcpus / 2) | round | int }}'
  max_wal_size: '1GB'
  min_wal_size: '80MB'
  log_destination: 'stderr'
  logging_collector: 'on'
  log_directory: 'log'
  log_filename: 'postgresql-%a.log'
  log_rotation_age: '1d'
  log_rotation_size: '0'
  log_truncate_on_rotation: 'on'
  log_line_prefix: '%m [%p] '
  datestyle: 'iso, mdy'
  lc_messages: '{{ postgresql_system_locale | default("en_US.UTF-8") }}'
  lc_monetary: '{{ postgresql_system_locale | default("en_US.UTF-8") }}'
  lc_numeric: '{{ postgresql_system_locale | default("en_US.UTF-8") }}'
  lc_time: '{{ postgresql_system_locale | default("en_US.UTF-8") }}'
  default_text_search_config: 'pg_catalog.english'
  password_encryption: '{{ postgresql_password_encryption_algorithm }}'
  hot_standby: 'off'
  promote_trigger_file: '{{ postgresql_promote_trigger_file }}'

postgresql_backup_parameters:
  archive_command: "{{ postgresql_archive_command | default('cd .')}}"

postgresql_restore_parameters:
  restore_command: "{{ postgresql_restore_command | default('cd .') }}"

postgresql_log_dir: "/var/log/postgresql"

postgresql_supported_versions:
  - 13
  - 14
  - 15