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main.yml
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# file: postgresql/defaults/main.yml
# Basic settings
postgresql_version: 17
postgresql_version_terse: "{{ postgresql_version | replace('.', '') }}" # Short version of the postgresql_version, used in some path and filenames
postgresql_encoding: "UTF-8"
postgresql_data_checksums: false
postgresql_pwfile: ""
postgresql_locale_parts:
- "en_US" # Locale
- "UTF-8" # Encoding
postgresql_locale: "{{ postgresql_locale_parts | join('.') }}"
postgresql_ctype_parts:
- "en_US" # Locale
- "UTF-8" # Encoding
postgresql_ctype: "{{ postgresql_ctype_parts | join('.') }}"
postgresql_env:
LC_ALL: "{{ postgresql_locale }}"
LC_LCTYPE: "{{ postgresql_locale }}"
postgresql_admin_user: "postgres"
postgresql_default_auth_method: "peer"
postgresql_default_auth_method_hosts: "{{ 'scram-sha-256' if postgresql_version is version_compare('14', '>=') else 'md5' }}" # (>=14.0 scram-sha-256 is default value)
# The user/group that will run postgresql process or service
postgresql_service_user: "{{ postgresql_admin_user }}"
postgresql_service_user_pgsql_profile: false
postgresql_service_group: "{{ postgresql_admin_user }}"
postgresql_service_restarted_state: "reloaded"
postgresql_cluster_name: "main" # postgres default is ''
postgresql_cluster_reset: false
postgresql_database_owner: "{{ postgresql_admin_user }}"
# Extensions
postgresql_ext_install_contrib: no
postgresql_ext_install_dev_headers: no
postgresql_ext_install_postgis: no
postgresql_ext_install_extra_packages: no
# PostGIS
postgresql_postgis_release_compatibility:
10: "3.1"
12: "3.1"
13: "3.1"
14: "3.2"
15: "3.2"
16: "3.4"
17: "3.5"
postgresql_ext_postgis_version: "{{ postgresql_postgis_release_compatibility.get(postgresql_version) }}"
postgresql_ext_postgis_version_terse: "{{ postgresql_ext_postgis_version | replace('.','') }}"
postgresql_ext_postgis_deps:
- libgeos-c1
- "postgresql-{{ postgresql_version }}-postgis-{{ postgresql_ext_postgis_version }}"
- "postgresql-{{ postgresql_version }}-postgis-scripts"
# Foreign Data Wrapper(s)
postgresql_fdw_mysql: no
postgresql_fdw_ogr: no
# List of databases to be created (optional)
postgresql_databases: []
# List of database extensions to be created (optional)
postgresql_database_extensions: []
# List of users to be created (optional)
postgresql_users: []
# List of schemas to be created (optional)
postgresql_database_schemas: []
# List of user privileges to be applied (optional)
postgresql_user_privileges: []
# pg_hba.conf
postgresql_pg_hba_default:
- { type: local, database: all, user: all, address: "", method: "{{ postgresql_default_auth_method }}", comment: '"local" is for Unix domain socket connections only' }
- { type: host, database: all, user: all, address: "127.0.0.1/32", method: "{{ postgresql_default_auth_method_hosts }}", comment: "IPv4 local connections:" }
- { type: host, database: all, user: all, address: "::1/128", method: "{{ postgresql_default_auth_method_hosts }}", comment: "IPv6 local connections:" }
- { type: local, database: all, user: "{{ postgresql_admin_user }}", address: "", method: "peer map=root_as_{{ postgresql_admin_user }}", comment: "Local root Unix user, passwordless access" }
postgresql_pg_hba_md5_hosts: []
postgresql_pg_hba_passwd_hosts: []
postgresql_pg_hba_trust_hosts: []
postgresql_pg_hba_custom: []
# pg_ident.conf
postgresql_pg_ident:
- comment: "root is allowed to login as {{ postgresql_admin_user }}"
mapname: "root_as_{{ postgresql_admin_user }}"
system_username: "{{ postgresql_admin_user }}"
pg_username: "{{ postgresql_admin_user }}"
# postgresql.conf
#------------------------------------------------------------------------------
# FILE LOCATIONS
#------------------------------------------------------------------------------
# Location of postgres configuration files here
postgresql_conf_directory: "/etc/postgresql/{{ postgresql_version }}/{{ postgresql_cluster_name }}"
# HBA (Host Based Authentication) file
postgresql_hba_file: "{{ postgresql_conf_directory }}/pg_hba.conf"
# Ident configuration file
postgresql_ident_file: "{{ postgresql_conf_directory }}/pg_ident.conf"
# Use data in another directory
postgresql_varlib_directory_name: "postgresql"
postgresql_data_directory: "/var/lib/{{ postgresql_varlib_directory_name }}/{{ postgresql_version }}/{{ postgresql_cluster_name }}"
postgresql_wal_directory: ""
postgresql_pid_directory: "/var/run/postgresql"
# If external_pid_file is not explicitly set, on extra PID file is written
postgresql_external_pid_file: "{{ postgresql_pid_directory }}/{{ postgresql_version }}-{{ postgresql_cluster_name }}.pid"
#------------------------------------------------------------------------------
# CONNECTIONS AND AUTHENTICATION
#------------------------------------------------------------------------------
# - Connection Settings -
postgresql_listen_addresses:
- "localhost"
postgresql_port: 5432
postgresql_max_connections: 100
postgresql_reserved_connections: 0 # (>= 16)
postgresql_superuser_reserved_connections: 3
postgresql_unix_socket_directory: "" # (<= 9.2)
postgresql_unix_socket_directories: # (>= 9.3)
- "{{ postgresql_pid_directory }}"
postgresql_unix_socket_group: ""
postgresql_unix_socket_permissions: "0777" # begin with 0 to use octal notation
postgresql_bonjour: off # advertise server via Bonjour
postgresql_bonjour_name: "" # defaults to the computer name
# - TCP settings -
# TCP Keepalives, 0 selects the system default (in seconds)
postgresql_tcp_keepalives_idle: 0
postgresql_tcp_keepalives_interval: 0
postgresql_tcp_keepalives_count: 0
postgresql_tcp_user_timeout: 0 # (>= 12)
postgresql_client_connection_check_interval: 0 # (>= 14)
# - Authentication -
postgresql_authentication_timeout: 60s # 1s-600s
postgresql_password_encryption: "{{ 'scram-sha-256' if postgresql_version is version_compare('14', '>=') else 'md5' }}" # (>=14.0 set to scram-sha-256 for best security)
posgresql_scram_iterations: 4096 # (>= 16)
postgresql_db_user_namespace: off # (<= 16)
# GSSAPI using Kerberos
postgresql_krb_server_keyfile: "{{ 'FILE:${sysconfdir}/krb5.keytab' if postgresql_version is version_compare('14', '>=') else '' }}"
postgresql_krb_srvname: "postgres" # (<= 9.3)
postgresql_krb_caseins_users: off
postgresql_gss_accept_delegation: off # (>= 16)
# - SSL -
postgresql_ssl: off
postgresql_ssl_ciphers:
- "HIGH"
- "MEDIUM"
- "+3DES"
- "!aNULL"
postgresql_ssl_prefer_server_ciphers: on
postgresql_ssl_ecdh_curve: "prime256v1"
postgresql_ssl_min_protocol_version: "TLSv1.2" # (>= 12)
postgresql_ssl_max_protocol_version: "" # (>= 12)
postgresql_ssl_dh_params_file: "" # (>= 10)
postgresql_ssl_passphrase_command: "" # (>= 11)
postgresql_ssl_passphrase_command_supports_reload: off # (>= 11)
postgresql_ssl_renegotiation_limit: 512MB # amount of data between renegotiations
postgresql_ssl_cert_file: "/etc/ssl/certs/ssl-cert-snakeoil.pem" # (>= 9.2)
postgresql_ssl_key_file: "/etc/ssl/private/ssl-cert-snakeoil.key" # (>= 9.2)
postgresql_ssl_ca_file: "" # (>= 9.2)
postgresql_ssl_crl_file: "" # (>= 9.2)
postgresql_ssl_crl_dir: "" # (>= 14)
#------------------------------------------------------------------------------
# RESOURCE USAGE (except WAL)
#------------------------------------------------------------------------------
# - Memory -
postgresql_shared_buffers: 128MB # min 128kB
postgresql_huge_pages: "try" # on, off, or try
postgresql_huge_page_size: 0 # (>= 14)
postgresql_temp_buffers: 8MB # min 800kB
postgresql_max_prepared_transactions: 0 # zero disables the feature
# Caution: it is not advisable to set max_prepared_transactions nonzero unless
# you actively intend to use prepared transactions.
postgresql_work_mem: 4MB # min 64kB
postgresql_hash_mem_multiplier: "{{ 2.0 if postgresql_version is version_compare('15', '>=') else 1.0 }}" # (>= 13)
postgresql_maintenance_work_mem: 64MB # min 1MB, (>= 17) min 64kB
postgresql_replacement_sort_tuples: 150000 # (>= 9.6) limits use of replacement selection sort
postgresql_autovacuum_work_mem: -1 # min 1MB, (>= 17) min 64kB, or -1 to use maintenance_work_mem
postgresql_logical_decoding_work_mem: 64MB # (>= 13)
postgresql_max_stack_depth: 2MB # min 100kB
postgresql_shared_memory_type: "mmap" # (>= 12)
postgresql_dynamic_shared_memory_type: "posix" # the default is the first option
# supported by the operating system:
# posix
# sysv
# windows
# mmap
# use none to disable dynamic shared memory
postgresql_min_dynamic_shared_memory: 0MB # (>= 14) (change requires restart)
postgres_vacuum_buffer_usage_limit: "{{ '2MB' if postgresql_version is version_compare('17', '>=') else '256kB' }}" # (>= 16) size of vacuum and analyze buffer access strategy ring;
# 0 to disable vacuum buffer access strategy;
# range 128kB to 16GB
# SLRU buffers (change requires restart)
postgresql_commit_timestamp_buffers: 0 # (>= 17) memory for pg_commit_ts (0 = auto)
postgresql_multixact_offset_buffers: 16 # (>= 17) memory for pg_multixact/offsets
postgresql_multixact_member_buffers: 32 # (>= 17) memory for pg_multixact/members
postgresql_notify_buffers: 16 # (>= 17) memory for pg_notify
postgresql_serializable_buffers: 32 # (>= 17) memory for pg_serial
postgresql_subtransaction_buffers: 0 # (>= 17) memory for pg_subtrans (0 = auto)
postgresql_transaction_buffers: 0 # (>= 17) memory for pg_xact (0 = auto)
# - Disk -
# limits per-process temp file space in kB, or -1 for no limit (>= 9.2)
postgresql_temp_file_limit: -1
# limits the number of SLRU pages allocated for NOTIFY / LISTEN queue (>= 17)
postgresql_max_notify_queue_pages: 1048576
# - Kernel Resources -
postgresql_max_files_per_process: 1000 # min 25, (>= 13) min 64
# - Cost-Based Vacuum Delay -
postgresql_vacuum_cost_delay: 0 # 0-100 milliseconds
postgresql_vacuum_cost_page_hit: 1 # 0-10000 credits
postgresql_vacuum_cost_page_miss: "{{ 2 if postgresql_version is version_compare('14', '>=') else 10 }}" # 0-10000 credits
postgresql_vacuum_cost_page_dirty: 20 # 0-10000 credits
postgresql_vacuum_cost_limit: 200 # 1-10000 credits
# - Background Writer -
postgresql_bgwriter_delay: 200ms # 10-10000ms between rounds
postgresql_bgwriter_lru_maxpages: 100 # 0-1000 max buffers written/round
postgresql_bgwriter_lru_multiplier: 2.0 # 0-10.0 multiplier on buffers scanned/round
postgresql_bgwriter_flush_after: 512kB # measured in pages, 0 disables
# - Asynchronous Behavior -
postgresql_backend_flush_after: 0 # (>= 9.6) 0 disables, default is 0
postgresql_effective_io_concurrency: 1 # 1-1000; 0 disables prefetching
postgresql_maintenance_io_concurrency: 10 # (>= 13)
postgresql_io_combine_limit: 128kB # (>= 17) usually 1-32 blocks (depends on OS)
postgresql_max_worker_processes: 8 # (change requires restart)
postgresql_max_parallel_workers_per_gather: 2 # (>= 9.6) limited by max_parallel_workers
postgresql_max_parallel_maintenance_workers: 2 # (>= 11) limited by max_parallel_workers
postgresql_max_parallel_workers: 8 # (>= 10)
postgresql_parallel_leader_participation: on # (>= 11)
postgresql_old_snapshot_threshold: -1 # (>= 9.6 and <= 16) 1min-60d; -1 disables; 0 is immediate
# (change requires restart)
#------------------------------------------------------------------------------
# WRITE-AHEAD LOG
#------------------------------------------------------------------------------
# - Settings -
postgresql_wal_level: "replica" # minimal, archive (<= 9.5), hot_standby (<= 9.5), replica (>= 9.6), or logical
postgresql_fsync: on # flush data to disk for crash safety
# (turning this off can cause
# unrecoverable data corruption)
postgresql_synchronous_commit: "on"
postgresql_wal_sync_method: "fsync"
postgresql_full_page_writes: on
postgresql_wal_log_hints: off # also do full page writes of non-critical updates
postgresql_wal_compression: off # (>= 9.5)
postgresql_wal_init_zero: on # zero-fill new WAL files
postgresql_wal_recycle: on # recycle WAL files
postgresql_wal_buffers: -1 # min 32kB, -1 sets based on shared_buffers
postgresql_wal_writer_delay: 200ms # 1-10000 milliseconds
postgresql_wal_writer_flush_after: 1MB # (>= 9.6) 0 disables
postgresql_wal_skip_threshold: 2MB # (>= 13)
postgresql_commit_delay: 0 # range 0-100000, in microseconds
postgresql_commit_siblings: 5 # range 1-1000
# - Checkpoints -
postgresql_max_wal_size: 1GB # (>= 9.5)
postgresql_min_wal_size: 80MB # (>= 9.5)
postgresql_checkpoint_flush_after: 0 # (>= 9.6) 0 disables,
# default is 256kB on linux, 0 otherwise
postgresql_checkpoint_timeout: 5min # range 30s-1d
postgresql_checkpoint_completion_target: "{{ 0.9 if postgresql_version is version_compare('14', '>=') else 0.5 }}" # checkpoint target duration, 0.0 - 1.0
postgresql_checkpoint_warning: 30s # 0 disables
# - Prefetching during recovery -
postgresql_recovery_prefetch: try # (>= 15)
postgresql_wal_decode_buffer_size: 512kB # (>= 15)
# - Archiving -
postgresql_archive_mode: "off"
postgresql_archive_library: "" # (>= 15)
# Command to use to archive a logfile segment.
# Placeholders: %p = path of file to archive
# %f = file name only
# e.g. 'test ! -f /mnt/server/archivedir/%f && cp %p /mnt/server/archivedir/%f'
postgresql_archive_command: ""
# force a logfile segment switch after this
postgresql_archive_timeout: 0
# - Archive Recovery -
# These are only used in recovery mode.
postgresql_restore_command: "" # (>= 12)
postgresql_archive_cleanup_command: "" # (>= 12)
postgresql_recovery_end_command: "" # (>= 12)
# - Recovery Target -
# Set these only when performing a targeted recovery.
postgresql_recovery_target: "" # (>= 12)
postgresql_recovery_target_name: "" # (>= 12)
postgresql_recovery_target_time: "" # (>= 12)
postgresql_recovery_target_xid: "" # (>= 12)
postgresql_recovery_target_lsn: "" # (>= 12)
postgresql_recovery_target_inclusive: "" # (>= 12)
postgresql_recovery_target_timeline: "latest" # (>= 12)
postgresql_recovery_target_action: "pause" # (>= 12)
# - WAL Summarization -
postgresql_summarize_wal: off # (>= 17) run WAL summarizer process?
postgresql_wal_summary_keep_time: "10d" # (>= 17) when to remove old summary files, 0 = never
#------------------------------------------------------------------------------
# REPLICATION
#------------------------------------------------------------------------------
# - Sending Servers -
# Set these on the primary and on any standby that will send replication data.
# max number of walsender processes
postgresql_max_wal_senders: 10
postgresql_max_replication_slots: 0 # max number of replication slots
postgresql_wal_sender_delay: 1s # walsender cycle time, 1-10000 milliseconds (<= 9.1)
postgresql_wal_keep_segments: 0 # in logfile segments, 16MB each; 0 disables
postgresql_wal_keep_size: 0 # (>= 13)
postgresql_max_slot_wal_keep_size: -1 # (>= 13)
postgresql_replication_timeout: 60s # in milliseconds; 0 disables (<= 9.2)
postgresql_wal_sender_timeout: 60s # in milliseconds; 0 disables (>= 9.3)
postgresql_track_commit_timestamp: off # (>= 9.5)
# - Primary Server -
# These settings are ignored on a standby server.
# standby servers that provide sync rep.
# number of sync standbys (>= 9.6) and comma-separated list of application_name from standby(s)
postgresql_synchronous_standby_names: [] # '*' means 'all'
postgresql_synchronous_standby_num_sync: "" # >= 9.6 (NOTE: If you use the ANY/ALL syntax in v10, then note the new variable below)
postgresql_synchronous_standby_choose_sync: "FIRST" # >= 10
# streaming replication standby server slot names that logical walsender processes will wait for (>= 17)
postgresql_synchronized_standby_slots: ""
# number of xacts by which cleanup is delayed
postgresql_vacuum_defer_cleanup_age: 0 # (<= 15)
# - Standby Servers -
# These settings are ignored on a primary server.
postgresql_primary_conninfo: "" # (>= 12)
postgresql_primary_slot_name: "" # (>= 12)
postgresql_promote_trigger_file: "" # (>= 12, <= 15)
# "on" allows queries during recovery
postgresql_hot_standby: on
# max delay before canceling queries when reading WAL from archive
postgresql_max_standby_archive_delay: 30s # -1 allows indefinite delay
# max delay before canceling queries when reading streaming WAL;
postgresql_max_standby_streaming_delay: 30s # -1 allows indefinite delay
postgresql_wal_receiver_create_temp_slot: off # (>= 13)
# send replies at least this often
postgresql_wal_receiver_status_interval: 10s # 0 disables
# send info from standby to prevent query conflicts
postgresql_hot_standby_feedback: off
#time that receiver waits for communication from master in milliseconds
postgresql_wal_receiver_timeout: 60s
# time to wait before retrying to retrieve WAL after a failed attempt
postgresql_wal_retrieve_retry_interval: 5s # (>= 9.5)
postgresql_recovery_min_apply_delay: 0 # (>= 12)
postgresql_sync_replication_slots: off # (>= 17) enables slot synchronization on the physical standby from the primary
# - Subscribers - (>= 10)
# These settings are ignored on a publisher.
postgresql_max_logical_replication_workers: 4 # (>= 10) taken from max_worker_processes
# (change requires restart)
postgresql_max_sync_workers_per_subscription: 2 # (>= 10) taken from max_logical_replication_workers
postgresql_max_parallel_apply_workers_per_subscription: 2 # (>= 16) taken from max_logical_replication_workers
#------------------------------------------------------------------------------
# QUERY TUNING
#------------------------------------------------------------------------------
# - Planner Method Configuration -
postgresql_enable_async_append: on # (>= 14)
postgresql_enable_bitmapscan: on
postgresql_enable_gathermerge: on # (>= 14)
postgresql_enable_hashagg: on
postgresql_enable_hashjoin: on
postgresql_enable_incremental_sort: on # (>= 13)
postgresql_enable_indexscan: on
postgresql_enable_indexonlyscan: on
postgresql_enable_material: on
postgresql_enable_memoize: on # (>= 14)
postgresql_enable_mergejoin: on
postgresql_enable_nestloop: on
postgresql_enable_parallel_append: on # (>= 11)
postgresql_enable_parallel_hash: on # (>= 11)
postgresql_enable_partition_pruning: on # (>= 11)
postgresql_enable_partitionwise_join: off # (>= 11)
postgresql_enable_partitionwise_aggregate: off # (>= 11)
postgres_enable_presorted_aggregate: on # (>= 16)
postgresql_enable_seqscan: on
postgresql_enable_sort: on
postgresql_enable_tidscan: on
postgresql_enable_group_by_reordering: on # (>= 17)
# - Planner Cost Constants -
postgresql_seq_page_cost: 1.0 # measured on an arbitrary scale
postgresql_random_page_cost: 4.0 # same scale as above
postgresql_cpu_tuple_cost: 0.01 # same scale as above
postgresql_cpu_index_tuple_cost: 0.005 # same scale as above
postgresql_cpu_operator_cost: 0.0025 # same scale as above
postgresql_parallel_tuple_cost: 0.1 # same scale as above (>= 9.6)
postgresql_parallel_setup_cost: 1000.0 # same scale as above (>= 9.6)
postgresql_min_parallel_relation_size: 8MB # (= 9.6) replaced by below two parameters in 10
postgresql_min_parallel_table_scan_size: 8MB # (>= 10)
postgresql_min_parallel_index_scan_size: 512kB # (>= 10)
postgresql_effective_cache_size: 4GB
postgresql_jit_above_cost: 100000 # (>= 11) perform JIT compilation if available
# and query more expensive than this;
# -1 disables
postgresql_jit_inline_above_cost: 500000 # (>= 11) inline small functions if query is
# more expensive than this; -1 disables
postgresql_jit_optimize_above_cost: 500000 # (>= 11) use expensive JIT optimizations if
# query is more expensive than this;
# -1 disables
# - Genetic Query Optimizer -
postgresql_geqo: on
postgresql_geqo_threshold: 12
postgresql_geqo_effort: 5 # range 1-10
postgresql_geqo_pool_size: 0 # selects default based on effort
postgresql_geqo_generations: 0 # selects default based on effort
postgresql_geqo_selection_bias: 2.0 # range 1.5-2.0
postgresql_geqo_seed: 0.0 # range 0.0-1.0
# - Other Planner Options -
postgresql_default_statistics_target: 100 # range 1-10000
postgresql_constraint_exclusion: "partition" # on, off, or partition
postgresql_cursor_tuple_fraction: 0.1 # range 0.0-1.0
postgresql_from_collapse_limit: 8
postgresql_jit: on # (>= 11: off, >= 12: on)
postgresql_join_collapse_limit: 8 # 1 disables collapsing of explicit
postgresql_force_parallel_mode: off # on, off, regress (>= 9.6 <= 13)
postgresql_plan_cache_mode: "auto" # (>= 12)
postgresql_recursive_worktable_factor: 10.0 # (>= 15) range 0.001-1000000
#------------------------------------------------------------------------------
# REPORTING AND LOGGING
#------------------------------------------------------------------------------
# - Where to Log -
# Valid values are combinations of stderr, csvlog, syslog, and eventlog.
# depending on platform. Csvlog requires logging_collector to be on.
postgresql_log_destination: "stderr"
# Enable capturing of stderr and csvlog into log files.
# Required to be on for csvlogs.
postgresql_logging_collector: off
# These are only used if logging_collector is on:
# Directory where log files are written, can be absolute or relative to PGDATA
postgresql_log_directory: "log"
# Group of the `postgresql_log_directory.
postgresql_log_directory_group: "{{ postgresql_service_group }}"
# permissions of the `postgresql_log_directory`.
postgresql_log_directory_mode: 0700
# Log file name pattern, can include strftime() escapes
postgresql_log_filename: "postgresql-%Y-%m-%d_%H%M%S.log"
postgresql_log_file_mode: "0600" # begin with 0 to use octal notation
# If on, an existing log file with the same name as the new log file will be
# truncated rather than appended to. But such truncation only occurs on
# time-driven rotation, not on restarts or size-driven rotation. Default is
# off, meaning append to existing files in all cases.
postgresql_log_truncate_on_rotation: off
# Automatic rotation of logfiles will happen after that time.
postgresql_log_rotation_age: 1d
# Automatic rotation of logfiles will happen after that much log output.
postgresql_log_rotation_size: 10MB
# These are relevant when logging to syslog:
postgresql_syslog_facility: "LOCAL0"
postgresql_syslog_ident: "postgres"
postgresql_syslog_sequence_numbers: on # (>= 9.6)
postgresql_syslog_split_messages: on # (>= 9.6)
# This is only relevant when logging to eventlog (win32) (>= 9.2):
postgresql_event_source: "PostgreSQL"
# - When to Log -
# Values in order of decreasing detail:
# - debug5
# - debug4
# - debug3
# - debug2
# - debug1
# - info
# - notice
# - warning
# - error
# - log
# - fatal
# - panic
postgresql_log_min_messages: "warning"
# Values in order of decreasing detail:
# - debug5
# - debug4
# - debug3
# - debug2
# - debug1
# - info
# - notice
# - warning
# - error
# - log
# - fatal
# - panic (effectively off)
postgresql_log_min_error_statement: "error"
# -1 is disabled, 0 logs all statements and their durations, > 0 logs only
# statements running at least this number of milliseconds
postgresql_log_min_duration_statement: -1
postgresql_log_min_duration_sample: -1 # (>= 13)
postgresql_log_statement_sample_rate: 1.0 # (>= 13)
postgresql_log_transaction_sample_rate: 0.0 # (>= 12)
postgresql_log_startup_progress_interval: 10s # (>= 15)
# - What to Log -
postgresql_debug_print_parse: off
postgresql_debug_print_rewritten: off
postgresql_debug_print_plan: off
postgresql_debug_pretty_print: on
postgresql_log_autovacuum_min_duration: "{{ '10min' if postgresql_version is version_compare('15', '>=') else -1 }}"
postgresql_log_checkpoints: "{{ 'on' if postgresql_version is version_compare('15', '>=') else 'off' }}"
postgresql_log_connections: off
postgresql_log_disconnections: off
postgresql_log_duration: off
postgresql_log_error_verbosity: "default" # terse, default, or verbose messages
postgresql_log_hostname: off
# Special values:
# %a = application name
# %u = user name
# %d = database name
# %r = remote host and port
# %h = remote host
# %b = backend type (>= 13)
# %p = process ID
# %P = process ID of parallel group leader (>= 14)
# %t = timestamp without milliseconds
# %m = timestamp with milliseconds
# %n = timestamp with milliseconds (as a Unix epoch)
# %Q = query ID (0 if none or not computed) (>= 14)
# %i = command tag
# %e = SQL state
# %c = session ID
# %l = session line number
# %s = session start timestamp
# %v = virtual transaction ID
# %x = transaction ID (0 if none)
# %q = stop here in non-session
# processes
# %% = '%'
# e.g. '<%u%%%d> '
postgresql_log_line_prefix: "%m [%p] "
# log lock waits >= deadlock_timeout
postgresql_log_lock_waits: off
postgresql_log_recovery_conflict_waits: off # (>= 14)
postgresql_log_parameter_max_length: -1 # (>= 13)
postgresql_log_parameter_max_length_on_error: 0 # (>= 13)
postgresql_log_statement: "none" # none, ddl, mod, all
postgresql_log_replication_commands: off
# log temporary files equal or larger
postgresql_log_temp_files: -1
postgresql_log_timezone: "UTC"
#------------------------------------------------------------------------------
# PROCESS TITLE
#------------------------------------------------------------------------------
postgresql_update_process_title: on # (>= 9.2)
#------------------------------------------------------------------------------
# STATISTICS
#------------------------------------------------------------------------------
# - Cumulative Query and Index Statistics -
postgresql_track_activities: on
postgresql_track_activity_query_size: 1024
postgresql_track_counts: on
postgresql_track_io_timing: off # (>= 9.2)
postgresql_track_wal_io_timing: off # (>= 14)
postgresql_track_functions: "none" # none, pl, all
postgresql_stats_fetch_consistency: cache # (>= 15) cache, none, snapshot
postgresql_stats_temp_directory: "pg_stat_tmp" # (<= 14)
# - Monitoring -
postgresql_compute_query_id: auto # (>= 14) auto, on, off
postgresql_log_parser_stats: off
postgresql_log_planner_stats: off
postgresql_log_executor_stats: off
postgresql_log_statement_stats: off
#------------------------------------------------------------------------------
# AUTOVACUUM
#------------------------------------------------------------------------------
# Enable autovacuum subprocess? 'on' requires track_counts to also be on.
postgresql_autovacuum: on
# -1 disables, 0 logs all actions and their durations, > 0 logs only
# actions running at least this number of milliseconds.
# max number of autovacuum subprocesses
postgresql_autovacuum_max_workers: 3
# time between autovacuum runs
postgresql_autovacuum_naptime: 1min
# min number of row updates before vacuum
postgresql_autovacuum_vacuum_threshold: 50
postgresql_autovacuum_vacuum_insert_threshold: 1000 # (>= 13)
# min number of row updates before analyze
postgresql_autovacuum_analyze_threshold: 50
# fraction of table size before vacuum
postgresql_autovacuum_vacuum_scale_factor: 0.2
postgresql_autovacuum_vacuum_insert_scale_factor: 0.2 # (>= 13)
# fraction of table size before analyze
postgresql_autovacuum_analyze_scale_factor: 0.1
# maximum XID age before forced vacuum
postgresql_autovacuum_freeze_max_age: 200000000
# maximum Multixact age before forced vacuum (>= 9.3)
postgresql_autovacuum_multixact_freeze_max_age: 400000000
# default vacuum cost delay for autovacuum, in milliseconds
postgresql_autovacuum_vacuum_cost_delay: 2ms # (<= 11: 20ms, >=12 2ms)
# default vacuum cost limit for autovacuum,
postgresql_autovacuum_vacuum_cost_limit: -1
#------------------------------------------------------------------------------
# CLIENT CONNECTION DEFAULTS
#------------------------------------------------------------------------------
# - Statement Behavior -
# Values in order of decreasing detail:
# - debug5
# - debug4
# - debug3
# - debug2
# - debug1
# - log
# - notice
# - warning
# - error
postgresql_client_min_messages: "notice"
postgresql_search_path: # schema names
- '"$user"'
- "public"
postgresql_row_security: on # (>= 9.5)
postgresql_default_tablespace: "" # a tablespace name, "" uses the default
postgresql_default_toast_compression: "pglz" # (>= 14) 'pglz' or 'lz4'
postgresql_temp_tablespaces: [] # a list of tablespace names
postgresql_default_table_access_method: "heap" # (>= 12)
postgresql_tablespaces_dirs: [] # a list of directories for tablespaces to be created
postgresql_check_function_bodies: on
postgresql_default_transaction_isolation: "read committed"
postgresql_default_transaction_read_only: off
postgresql_default_transaction_deferrable: off
postgresql_session_replication_role: "origin"
postgresql_statement_timeout: 0 # in milliseconds, 0 is disabled
postgresql_transaction_timeout: 0 # in milliseconds, 0 is disabled (>= 17)
postgresql_lock_timeout: 0 # in milliseconds, 0 is disabled (>= 9.3)
postgresql_idle_in_transaction_session_timeout: 0 # in milliseconds, 0 is disabled (>= 9.6)
postgresql_idle_session_timeout: 0 # in milliseconds, 0 is disabled (>= 14)
postgresql_vacuum_freeze_table_age: 150000000
postgresql_vacuum_freeze_min_age: 50000000
postgresql_vacuum_failsafe_age: 1600000000 # (>= 14)
postgresql_vacuum_multixact_freeze_table_age: 150000000 # (>= 9.3)
postgresql_vacuum_multixact_freeze_min_age: 5000000 # (>= 9.3)
postgresql_vacuum_multixact_failsafe_age: 1600000000 # (>= 14)
postgresql_vacuum_cleanup_index_scale_factor: 0.1 # (>= 11 and <= 13)
postgresql_bytea_output: "hex" # hex, escape
postgresql_xmlbinary: "base64"
postgresql_xmloption: "content"
postgresql_gin_pending_list_limit: 4MB # (>= 9.5)
postgresql_createrole_self_grant: '' # (>= 16) 'set', 'inherit' or 'set, inherit'
postgresql_event_triggers: on # (>= 17)
# - Locale and Formatting -
postgresql_datestyle:
- "iso"
- "mdy"
postgresql_intervalstyle: "postgres"
postgresql_timezone: "UTC" # postgres default is GMT
# Select the set of available time zone abbreviations. Currently, there are:
# Default
# Australia
# India
# You can create your own file in `share/timezonesets/`.
postgresql_timezone_abbreviations: "Default"
# min -15, max 3; (>= 12) any value >0 actually selects precise output mode
postgresql_extra_float_digits: "{{ 1 if postgresql_version is version_compare('12', '>=') else 0 }}"
postgresql_client_encoding: false # actually defaults to database encoding
# 'sql_ascii', 'UTF8', ...
# These settings are initialized by initdb, but they can be changed.
# locale for system error message
postgresql_lc_messages: "{{ postgresql_locale }}"
# locale for monetary formatting
postgresql_lc_monetary: "{{ postgresql_locale }}"
# locale for number formatting
postgresql_lc_numeric: "{{ postgresql_locale }}"
# locale for time formatting
postgresql_lc_time: "{{ postgresql_locale }}"
postgresql_icu_validation_level: "warning" # (>= 16) report ICU locale validation
# errors at the given level
# default configuration for text search
postgresql_default_text_search_config: "pg_catalog.english" # default is 'pg_catalog.simple'
# - Shared Library Preloading -
postgresql_local_preload_libraries: []
postgresql_session_preload_libraries: []
postgresql_shared_preload_libraries: []
postgresql_jit_provider: "llvmjit" # (>= 11)
# - Other Defaults -
postgresql_dynamic_library_path: "$libdir"
postgresql_extension_destdir: "" # prepend path when loading extensions
# and shared objects (added by Debian)
postgresql_gin_fuzzy_search_limit: 0
#------------------------------------------------------------------------------
# LOCK MANAGEMENT
#------------------------------------------------------------------------------
postgresql_deadlock_timeout: 1s
postgresql_max_locks_per_transaction: 64 # min 10
# Note: Each lock table slot uses ~270 bytes of shared memory, and there are
# max_locks_per_transaction * (max_connections + max_prepared_transactions)
# lock table slots.
postgresql_max_pred_locks_per_transaction: 64 # min 10
postgresql_max_pred_locks_per_relation: -2 # (>= 10) negative values mean
# (max_pred_locks_per_transaction
# / -max_pred_locks_per_relation) - 1
postgresql_max_pred_locks_per_page: 2 # (>= 10) min 0
#------------------------------------------------------------------------------
# VERSION AND PLATFORM COMPATIBILITY
#------------------------------------------------------------------------------
# - Previous PostgreSQL Versions -
postgresql_array_nulls: on
postgresql_backslash_quote: "safe_encoding" # on, off, or safe_encoding
postgresql_escape_string_warning: on
postgresql_lo_compat_privileges: off
postgresql_operator_precedence_warning: off # (<= 13)
postgresql_quote_all_identifiers: off
postgresql_standard_conforming_strings: on
postgresql_synchronize_seqscans: on
postgresql_default_with_oids: off # (<= 11)
postgresql_sql_inheritance: on # (<= 9.6)
# - Other Platforms and Clients -
postgresql_transform_null_equals: off
postgresql_allow_alter_system: on # (>= 17)
#------------------------------------------------------------------------------
# ERROR HANDLING
#------------------------------------------------------------------------------
# Terminate session on any error?
postgresql_exit_on_error: off
# Reinitialize after backend crash?
postgresql_restart_after_crash: on
# Retry or panic on failure to fsync data?
postgresql_data_sync_retry: off # (>= 11)
postgresql_recovery_init_sync_method: fsync #(>= 14) fsync, syncfs (Linux 5.8+)
#------------------------------------------------------------------------------
# CONFIG FILE INCLUDES
#------------------------------------------------------------------------------
# include files ending in '.conf' from
# directory 'conf.d'
postgresql_include_dir: "conf.d"
# include file only if it exists
postgresql_include_if_exists: false
# include file
postgresql_include: false
#------------------------------------------------------------------------------
# PGTUNE
#------------------------------------------------------------------------------
# Should we run pgtune and accept the changes it proposes?
postgresql_pgtune: no
# Total system memory in bytes, will attempt to detect if set to "no"
postgresql_pgtune_memory: no
# Database type, valid options are DW, OLTP, Web, Mixed, Desktop
postgresql_pgtune_type: "Mixed"
# Maximum number of expected connections, if "no", default based on db type
postgresql_pgtune_connections: no
#------------------------------------------------------------------------------
# INSTALL/REPO
#------------------------------------------------------------------------------
# Install repo, or rely on existing configuration (Satellite, Artifactory, etc.)
postgresql_install_repository: true
# APT settings
postgresql_apt_key_id: "ACCC4CF8"
postgresql_apt_key_url: "https://www.postgresql.org/media/keys/ACCC4CF8.asc"
postgresql_apt_repository: "deb http://apt.postgresql.org/pub/repos/apt/ {{ ansible_distribution_release }}-pgdg main {{ postgresql_version }}"
# Pin-Priority of PGDG repository
postgresql_apt_pin_priority: 500
# YUM repository locations
postgresql_yum_repository_url: "http://yum.postgresql.org"
postgresql_pgdg_repository_url: "https://download.postgresql.org/pub/repos/yum"
# YUM (RedHat, CentOS, etc.) baseurl/gpgkey
postgresql_yum_repository_baseurl: "{{ postgresql_yum_repository_url }}/{{ postgresql_version }}/{{ ansible_os_family | lower }}/rhel-{{ ansible_distribution_major_version }}-{{ ansible_architecture }}"
postgresql_yum_repository_gpgkey: "{{ postgresql_pgdg_repository_url }}/keys/PGDG-RPM-GPG-KEY-RHEL"
# DNF (Fedora) baseurl/gpgkey
postgresql_dnf_repository_baseurl: "{{ postgresql_yum_repository_url }}/{{ postgresql_version }}/fedora/fedora-{{ ansible_distribution_major_version }}-{{ ansible_architecture }}"
postgresql_dnf_repository_gpgkey: "{{ postgresql_yum_repository_gpgkey }}"
postgresql_apt_py3_dependencies: ["python3-psycopg2", "locales"]
postgresql_apt_py2_dependencies: ["python-psycopg2", "python-pycurl", "locales"]
postgresql_apt_dependencies: "{{ postgresql_apt_py3_dependencies if 'python3' in ansible_python_interpreter|default('') else postgresql_apt_py2_dependencies }}"
postgresql_hide_passwords: false