---
psql_enabled: True
# I prefer to use the postgresql.org repositories
#
# See the features matrix here: http://www.postgresql.org/about/featurematrix/
#
pg_use_postgresql_org_repo: True
psql_postgresql_install: True
psql_pkg_state: present
postgresql_enabled: True
psql_version: 13
psql_db_host: localhost
psql_db_port: 5432
psql_db_size_w: 150000000
psql_db_size_c: 170000000
psql_listen_on_ext_int: False
psql_use_alternate_data_dir: False
# Deb/Ubuntu
psql_data_root_dir: '/var/lib/postgresql/{{ psql_version }}'
psql_data_dir: '{{ psql_data_root_dir }}/main'
psql_conf_dir: '/etc/postgresql/{{ psql_version }}/main'
psql_log_dir: /var/log/postgresql

# Debian/Ubuntu
postgresql_pkgs:
  - 'postgresql-{{ psql_version }}'
  - 'postgresql-contrib-{{ psql_version }}'  
  - 'postgresql-client-{{ psql_version }}'
  - pgtop
  - python-psycopg2

psql_el_install_scl_version: False
psql_el_install_from_pgdg_repo: True
psql_el_pgdg_repo_url: "https://download.postgresql.org/pub/repos/yum/reporpms/EL-7-x86_64/pgdg-redhat-repo-latest.noarch.rpm"
psql_scl_base_dir: '/var/opt/rh/rh-postgresql{{ psql_version }}/lib/pgsql'
psql_el_base_dir: '/var/lib/pgsql/{{ psql_version }}'
psql_el_data_dir: '{{ psql_el_base_dir }}/data'
psql_el_conf_dir: '{{ psql_el_data_dir }}'

psql_el_pgdg_packages:
  - 'postgresql{{ psql_version }}-server'
  - 'postgresql{{ psql_version }}-contrib'
  - 'pg_top_{{ psql_version }}'
  - pgcluu
  - python-psycopg2

psql_el_scl_packages:
  - 'rh-postgresql{{ psql_version }}-runtime'
  - 'rh-postgresql{{ psql_version }}-postgresql'
  - 'rh-postgresql{{ psql_version }}-postgresql-server'
  - 'rh-postgresql{{ psql_version }}-postgresql-contrib'
  - python-psycopg2

psql_conf_parameters:
  - { name: 'max_connections', value: '100', set: 'True' }
  - { name: 'shared_buffers', value: '{{ (ansible_memtotal_mb / 4) | int }}MB', set: 'True' }
  - { name: 'work_mem', value: '{{ ((ansible_memtotal_mb * 1024) / (400 * ansible_processor_vcpus)) | int }}kB', set: 'True' }
  - { name: 'maintenance_work_mem', value: '{{ (ansible_memtotal_mb / 8) | int }}MB', set: 'True' }
  - { name: 'temp_buffers', value: '{{ ansible_memtotal_mb }}kB', set: 'True' }
  - { name: 'wal_buffers', value: '{{ (ansible_memtotal_mb / 1024 * 2) | int }}MB', set: 'True' }
  - { name: 'min_wal_size', value: '{{ (ansible_memtotal_mb / 16) | int }}MB', set: 'True' }
  - { name: 'max_wal_size', value: '{{ (ansible_memtotal_mb / 8) | int }}MB', set: 'True' }
  - { name: 'effective_cache_size', value: '{{ (ansible_memtotal_mb / 1.3) | int }}MB', set: 'True' }
  - { name: 'max_stack_depth', value: '2MB', set: 'False' }
  - { name: 'max_files_per_process', value: '8192', set: 'False' }

# logging configuration. Important: the parameters that need a restart must be listed in psql_conf_parameters
psql_log_configuration:
  - { name: 'log_destination', value: 'stderr', set: 'True' }
  - { name: 'logging_collector', value: 'off', set: 'False' }
  - { name: 'log_directory', value: "'{{ psql_log_dir }}'", set: 'True' }
  - { name: 'log_rotation_age', value: '1d', set: 'True' }
  - { name: 'log_rotation_size', value: '10MB', set: 'True' }
  - { name: 'client_min_messages', value: 'notice', set: 'True' }
  - { name: 'log_min_messages', value: 'warning', set: 'True' }
  - { name: 'log_min_error_statement', value: 'error', set: 'True' }
  - { name: 'log_min_duration_statement', value: '-1', set: 'True' }
  - { name: 'log_checkpoints', value: 'off', set: 'True' }
  - { name: 'log_connections', value: 'on', set: 'True' }
  - { name: 'log_disconnections', value: 'off', set: 'True' }
  - { name: 'log_duration', value: 'off', set: 'True' }
  - { name: 'log_error_verbosity', value: 'default', set: 'True' }
  - { name: 'log_hostname', value: 'on', set: 'True' }
  
# Treat vacuum separately. Important: the parameters that need a restart must be listed in psql_conf_parameters
psql_autovacuum_configuration:
  - { name: 'track_counts', value: 'on', set: 'True' }
  - { name: 'autovacuum', value: 'on', set: 'True' }
  - { name: 'log_autovacuum_min_duration', value: '-1', set: 'True' }
  - { name: 'autovacuum_vacuum_threshold', value: '50', set: 'True' }
  - { name: 'autovacuum_analyze_threshold', value: '50', set: 'True' }
  - { name: 'autovacuum_vacuum_scale_factor', value: '0.2', set: 'True' }
  - { name: 'autovacuum_vacuum_cost_limit', value: '1000', set: 'True' }
  - { name: 'autovacuum_max_workers', value: '10', set: 'True' }
  - { name: 'autovacuum_naptime', value: '10', set: 'True' }

# Streaming replication settings
postgresql_streaming_replication: False
postgresql_streaming_replication_primary_node: 'localhost'
psql_streaming_replication_hosts:
  - 'localhost'
psql_streaming_replication_user: psql_replica
#psql_streaming_replication_pwd: 'use a vault'
psql_streaming_replication_config:
  - { name: 'wal_level', value: 'replica' }
  - { name: 'max_wal_senders', value: '10' }
  - { name: 'wal_keep_size', value: '1GB' }
  - { name: 'wal_compression', value: 'on' }
  - { name: 'wal_log_hints', value: 'on' }
  - { name: 'hot_standby', value: 'on' }
  - { name: 'archive_mode', value: 'always' }
  - { name: 'archive_command', value: "cp %p {{ psql_wal_archiving_log_dir }}/%f" }
  - { name: 'restore_command', value: "cp {{ psql_wal_archiving_log_dir }}/%f %p" }

# SSL as a special case
psql_enable_ssl: False
psql_force_ssl_client_connection: False
postgresql_letsencrypt_managed: '{{ psql_enable_ssl }}'
psql_ssl_privkey_global_file: '/var/lib/acme/live/{{ ansible_fqdn }}/privkey'
psql_ssl_privkey_file: /etc/pki/postgresql/postgresql.key
psql_ssl_cert_file: '/var/lib/acme/live/{{ ansible_fqdn }}/cert'
psql_ssl_ca_file: '/var/lib/acme/live/{{ ansible_fqdn }}/fullchain'
psql_conf_ssl_parameters: 
  - { name: 'ssl', value: 'true' }
  - { name: 'ssl_cert_file', value: '{{ psql_ssl_cert_file }}' }
  - { name: 'ssl_key_file', value: '{{ psql_ssl_privkey_file }}' }
  - { name: 'ssl_ca_file', value: '{{ psql_ssl_ca_file }}' }

psql_conf_disable_ssl_parameters: 
  - { name: 'ssl', value: 'false' }

psql_set_shared_memory: False
psql_sysctl_file: 30-postgresql-shm.conf
psql_sysctl_kernel_sharedmem_parameters:
  - { name: 'kernel.shmmax', value: '33554432' }
  - { name: 'kernel.shmall', value: '2097152' }

psql_db_name: db_name
psql_db_user: db_user
psql_db_pwd: "We cannot save the password into the repository. Use another variable and change pgpass.j2 accordingly. Encrypt the file that contains the variable with ansible-vault"

#psql_db_data:
  # Example of line needed to create a db, create the user that owns the db, manage the db accesses (used by iptables too). All the fields are mandatory.
  #- { name: '{{ psql_db_name }}', encoding: 'UTF8', user: '{{ psql_db_user }}', pwd: '{{ psql_db_pwd }}', roles: 'NOCREATEDB,NOSUPERUSER', extensions: [ 'postgis', 'pgpool_regclass', 'pgpool_recovery' ], allowed_hosts: [ 'xxx.xxx.xxx.xxx/32', 'yyy.yyy.yyy.yyy/32' ], managedb: True }
  # Example of line needed to manage the db accesses (used by iptables too), without creating the db and the user. Useful, for example, to give someone access to the postgresql db
  #- { name: '{{ psql_db_name }}', user: '{{ psql_db_user }}', allowed_hosts: [ 'xxx.xxx.xxx.xxx/32', 'yyy.yyy.yyy.yyy/32' ], managedb: False }
  # Example of line needed to remove a db, create the user that owns the db, manage the db accesses (used by iptables too). All the fields are mandatory.
  #- { name: '{{ psql_db_name }}', encoding: 'UTF8', user: '{{ psql_db_user }}', pwd: '{{ psql_db_pwd }}', managedb: True, roles: 'NOCREATEDB,NOSUPERUSER', extensions: [ 'postgis', 'pgpool_regclass', 'pgpool_recovery' ], allowed_hosts: [ 'xxx.xxx.xxx.xxx/32', 'yyy.yyy.yyy.yyy/32' ], state=absent }

# postgis
postgres_install_gis_extensions: False
postgres_gis_version: 2.5
postgres_gis_shortver: 25
postgres_gis_pkgs:
  - 'postgresql-{{ psql_version }}-postgis-{{ postgres_gis_version }}'

postgres_el_gis_pkgs:
  - 'postgis{{ postgres_gis_shortver }}-{{ psql_version }}'
  - 'postgis{{ postgres_gis_shortver }}-{{ psql_version }}-client'

# Local backup  
pg_backup_enabled: True
pg_el_backup_conf_dir: /etc/sysconfig
pg_backup_conf_dir: /etc/default
pg_backup_bin: /usr/local/sbin/postgresql-backup
pg_backup_pgdump_bin: /usr/bin/pg_dump
pg_backup_retain_copies: 2
pg_backup_build_db_list: "yes"
psql_wal_files_archiving_enabled: False
psql_wal_archiving_log_dir: '{{ psql_data_dir }}/archive_log'
psql_base_backup_dir: '{{ pg_backup_base_dir }}/base_backup'
# Dynamically created from psql_db_data if pg_backup_db_list is not set
#pg_backup_db_list: '{{ psql_db_name}}'
pg_backup_base_dir: /var/lib/pgsql
pg_backup_destdir: '{{ pg_backup_base_dir }}/backups'
pg_backup_logdir: /var/log/postgresql
pg_backup_logfile: '{{ pg_backup_logdir }}/postgresql-backup.log'
pg_backup_use_auth: "no"
pg_backup_pass_file: /root/.pgpass
pg_backup_use_nagios: "yes"

# Used to configure firewalld
postgresql_firewalld_zone: '{{ firewalld_default_zone }}'