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---
postgresql_version: 9.4
# This will be the main admin user, which is only allowed to connect
# from localhost, mainly for provisioning, maintenance and scripts.
postgresql_admin_user: postgres
postgresql_admin_group: "{{postgresql_admin_user}}"
# TODO: This has been modeled but there's no real support for clusters yet
postgresql_cluster: main
# File locations
# --------------
# Store postgres' configuration files here
postgresql_conf_directory: "/etc/postgresql/{{postgresql_version}}/{{postgresql_cluster}}"
# 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_data_directory: "/var/lib/postgresql/{{postgresql_version}}/{{postgresql_cluster}}"
# Directory to store runtime data such as PIDs
postgresql_runtime_directory: "/var/run/postgresql"
# If external_pid_file is not explicitly set, on extra PID file is written
postgresql_external_pid_file: "{{postgresql_runtime_directory}}/{{postgresql_version}}-{{postgresql_cluster}}.pid"
# Store postgresql's logs files here
postgresql_log_directory: "/var/log/postgresql"
# Connections and authentication
# ------------------------------
# Use 'localhost' for local addresses only. Use '*' alone to
# listen on every available address.
postgresql_listen_addresses:
- localhost
postgresql_port: 5432
# Authenticated connections that will be inserted in `pg_hba.conf`.
# These won't overwrite the default local idents, which are left
# untouched as they are useful and safe.
#
# Specify connections as a list of hashes having this schema:
# - type: local
# user: postgres
# method: peer
# database: 'all' # defaults to 'samerole', can also be a list
# address: '192.168.0.0/24' # optional
# options: # optional
# key: value
#
# The first field is the connection type: "local" is a Unix-domain
# socket, "host" is either a plain or SSL-encrypted TCP/IP socket,
# "hostssl" is an SSL-encrypted TCP/IP socket, and "hostnossl" is a
# plain TCP/IP socket.
#
# DATABASE can be "all", "sameuser", "samerole", "replication", a
# database name, or a comma-separated list thereof. The "all"
# keyword does not match "replication". Access to replication
# must be enabled in a separate record (see example below).
#
# USER can be "all", a user name, a group name prefixed with "+", or a
# comma-separated list thereof. In both the DATABASE and USER fields
# you can also write a file name prefixed with "@" to include names
# from a separate file.
#
# ADDRESS specifies the set of hosts the record matches. It can be a
# host name, or it is made up of an IP address and a CIDR mask that is
# an integer (between 0 and 32 (IPv4) or 128 (IPv6) inclusive) that
# specifies the number of significant bits in the mask. A host name
# that starts with a dot (.) matches a suffix of the actual host name.
# Alternatively, you can write an IP address and netmask in separate
# columns to specify the set of hosts. Instead of a CIDR-address, you
# can write "samehost" to match any of the server's own IP addresses,
# or "samenet" to match any address in any subnet that the server is
# directly connected to.
#
# METHOD can be "trust", "reject", "md5", "password", "gss", "sspi",
# "krb5", "ident", "peer", "pam", "ldap", "radius" or "cert". Note that
# "password" sends passwords in clear text; "md5" is preferred since
# it sends encrypted passwords.
#
# Database and user names containing spaces, commas, quotes and other
# special characters must be quoted. Quoting one of the keywords
# "all", "sameuser", "samerole" or "replication" makes the name lose
# its special character, and just match a database or username with
# that name.
postgresql_authentication: []
# Authenticated connections that will be inserted in `pg_hba.conf`.
# These won't overwrite the default local idents, which are left
# untouched as they are useful and safe.
# Specify connections as a list of hashes having this schema:
# - name: map_a
# user: system_user
# pg_user: postgresql_user
postgresql_user_map: []
# A dict whose `key: value`s will be provided as environment
# variables for the postmaster.
postgresql_env: {}
# Note: Increasing max_connections costs ~400 bytes of shared memory per
# connection slot, plus lock space (see max_locks_per_transaction).
postgresql_max_connections: 1024
postgresql_superuser_reserved_connections: 3
postgresql_unix_socket_directories: # comma-separated list of directories
- /var/run/postgresql
postgresql_unix_socket_group: ''
postgresql_unix_socket_permissions: '0777' # begin with 0 to use octal notation
# Automatic pg_ctl configuration. Specify a list of options containing
# cluster specific options to be passed to pg_ctl(1).
postgresql_pg_ctl_options: []
postgresql_bonjour: off # advertise server via Bonjour
postgresql_bonjour_name: '' # defaults to the computer name
# Security and Authentication
# ---------------------------
postgresql_authentication_timeout: 60s
postgresql_ssl: off
postgresql_ssl_ciphers:
- 'DEFAULT'
- '!LOW'
- '!EXP'
- '!MD5'
- '@STRENGTH'
postgresql_ssl_renegotiation_limit: 512MB # amount of data between renegotiations
postgresql_ssl_cert_file: /etc/ssl/certs/ssl-cert-snakeoil.pem
postgresql_ssl_key_file: /etc/ssl/private/ssl-cert-snakeoil.key
postgresql_ssl_ca_file: ''
postgresql_ssl_crl_file: ''
postgresql_password_encryption: on
postgresql_db_user_namespace: off
# Kerberos and GSSAPI
postgresql_krb_server_keyfile: ''
postgresql_krb_caseins_users: off
# TCP Keepalives, 0 selects the system default
postgresql_tcp_keepalives_idle: 0
postgresql_tcp_keepalives_interval: 0
postgresql_tcp_keepalives_count: 0
# Memory
# ------
postgresql_shared_buffers: 128MB # min 128kB
postgresql_temp_buffers: 8MB # min 800kB
postgresql_work_mem: 1MB # min 64kB
postgresql_maintenance_work_mem: 16MB # min 1MB
postgresql_max_stack_depth: 2MB # min 100kB
# Note: Increasing max_prepared_transactions costs ~600 bytes of shared memory
# per transaction slot, plus lock space (see max_locks_per_transaction).
# It is not advisable to set max_prepared_transactions nonzero unless you
# actively intend to use prepared transactions.
postgresql_max_prepared_transactions: 0 # zero disables the feature
# Disk
# ----
# limits per-session temp file space in kB, or -1 for off limit
postgresql_temp_file_limit: -1
# Kernel Resource Usage
# ---------------------
postgresql_max_files_per_process: 1000 # min 25
postgresql_shared_preload_libraries: []
# 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
# Write Ahead Log
# ---------------
postgresql_wal_level: minimal # minimal, archive, or hot_standby
postgresql_fsync: on # turns forced synchronization on or off
# Synchronization level:
# - off
# - local
# - remote_write
# - on
postgresql_synchronous_commit: on
# The default is the first option supported by the operating system:
# - open_datasync
# - fdatasync (default on Linux)
# - fsync
# - fsync_writethrough
# - open_sync
postgresql_wal_sync_method: fsync
# recover from partial page writes
postgresql_full_page_writes: on
postgresql_wal_buffers: -1 # min 32kB, -1 sets based on shared_buffers
postgresql_wal_writer_delay: 200ms # 1-10000 milliseconds
postgresql_commit_delay: 0 # range 0-100000, in microseconds
postgresql_commit_siblings: 5 # range 1-1000
postgresql_checkpoint_segments: 3 # in logfile segments, min 1, 16MB each
postgresql_checkpoint_timeout: 5min # range 30s-1h
postgresql_checkpoint_completion_target: 0.5 # checkpoint target duration, 0.0 - 1.0
postgresql_checkpoint_warning: 30s # 0 disables
# allows archiving to be done
postgresql_archive_mode: off
# 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
# Replication
# -----------
# Set these on the master and on any standby that will send replication data.
# max number of walsender processes
postgresql_max_wal_senders: 0
postgresql_wal_keep_segments: 0 # in logfile segments, 16MB each; 0 disables
postgresql_wal_sender_timeout: 60s # in milliseconds; 0 disables
# Replication (masters)
# ---------------------
# These settings are ignored on a standby server.
# Standby servers that provide sync rep.
# Comma-separated list of application_name from standby(s)
postgresql_synchronous_standby_names: [] # '*' means 'all'
# number of xacts by which cleanup is delayed
postgresql_vacuum_defer_cleanup_age: 0
# "on" allows queries during recovery
postgresql_hot_standby: off
# 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
# 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
# Error Reporting And Logging
# ---------------------------
# 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: on
# These are only used if logging_collector is on:
# 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
# This is only relevant when logging to eventlog (win32):
postgresql_event_source: PostgreSQL
# Values in order of decreasing detail:
# - debug5
# - debug4
# - debug3
# - debug2
# - debug1
# - log
# - notice
# - warning
# - error
postgresql_client_min_messages: notice
# 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_debug_print_parse: off
postgresql_debug_print_rewritten: off
postgresql_debug_print_plan: off
postgresql_debug_pretty_print: on
postgresql_log_checkpoints: 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
# %p = process ID
# %t = timestamp without milliseconds
# %m = timestamp with milliseconds
# %i = command tag
# %e = SQL state
# %c = session ID
# %l = session line number
# %s = sessioan start timestamp
# %v = virtual transaction ID
# %x = transaction ID (0 if none)
# %q = stop here in non-session
# processes
# %% = '%'
postgresql_log_line_prefix: '%t '
# log lock waits >= deadlock_timeout
postgresql_log_lock_waits: off
postgresql_log_statement: none # none, ddl, mod, all
# log temporary files equal or larger
postgresql_log_temp_files: -1
postgresql_log_timezone: UTC
# Runtime statistics
# ------------------
postgresql_track_activities: on
postgresql_track_counts: on
postgresql_track_io_timing: off
postgresql_track_functions: none # none, pl, all
postgresql_track_activity_query_size: 1024
postgresql_update_process_title: on
postgresql_stats_temp_directory: pg_stat_tmp
postgresql_log_parser_stats: off
postgresql_log_planner_stats: off
postgresql_log_executor_stats: off
postgresql_log_statement_stats: off
# Error Handling
# --------------
# Terminate session on any error?
postgresql_exit_on_error: off
# Reinitialize after backend crash?
postgresql_restart_after_crash: on
# Query Tuning (Planner)
# ----------------------
postgresql_enable_bitmapscan: on
postgresql_enable_hashagg: on
postgresql_enable_hashjoin: on
postgresql_enable_indexscan: on
postgresql_enable_indexonlyscan: on
postgresql_enable_material: on
postgresql_enable_mergejoin: on
postgresql_enable_nestloop: on
postgresql_enable_seqscan: on
postgresql_enable_sort: on
postgresql_enable_tidscan: on
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_effective_cache_size: 128MB
# Query Tuning (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
# Query Tuning (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_join_collapse_limit: 8 # 1 disables collapsing of explicit
# 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: 10 # 0-10000 credits
postgresql_vacuum_cost_page_dirty: 20 # 0-10000 credits
postgresql_vacuum_cost_limit: 200 # 1-10000 credits
# Autovacuum Parameters
# ---------------------
# 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.
postgresql_log_autovacuum_min_duration: -1
# 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
# 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
# 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
# default vacuum cost delay for autovacuum, in milliseconds
postgresql_autovacuum_vacuum_cost_delay: 20ms
# default vacuum cost limit for autovacuum,
postgresql_autovacuum_vacuum_cost_limit: -1
# 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 multipler on buffers scanned/round
# Asynchronous Behavior
# ---------------------
postgresql_effective_io_concurrency: 1 # 1-1000; 0 disables prefetching
# Client Connection Defaults
# --------------------------
postgresql_search_path: # schema names
- '"$user"'
- public
postgresql_default_tablespace: '' # a tablespace name, '' uses the default
postgresql_temp_tablespaces: [] # a list of tablespace names
postgresql_check_function_bodies: on
postgresql_default_transaction_isolation: read committed
postgresql_default_transaction_read_only: off
postgresql_default_transaction_deferrable: off
postgresql_session_replication_role: origin
postgresql_statement_timeout: 0 # in milliseconds, 0 is disabled
postgresql_lock_timeout: 0 # in milliseconds, 0 is disabled
postgresql_vacuum_freeze_min_age: 50000000
postgresql_vacuum_freeze_table_age: 150000000
postgresql_bytea_output: hex # hex, escape
postgresql_xmlbinary: base64
postgresql_xmloption: content
# Select the set of available time zone abbreviations. Currently, there are:
# Default
# Australia
# India
# You can create your own file in `share/timezonesets/`.
postgresql_timezone_abbreviations: Default
postgresql_datestyle:
- iso
- mdy
postgresql_intervalstyle: postgres
postgresql_timezone: UTC
postgresql_extra_float_digits: 0 # min -15, max 3
postgresql_client_encoding: sql_ascii # 'sql_ascii' actually defaults to database encoding
# These settings are initialized by initdb, but they can be changed.
# locale for system error message
postgresql_lc_messages: en_US.UTF-8
# locale for monetary formatting
postgresql_lc_monetary: en_US.UTF-8
# locale for number formatting
postgresql_lc_numeric: en_US.UTF-8
# locale for time formatting
postgresql_lc_time: en_US.UTF-8
postgresql_default_text_search_config: pg_catalog.english
postgresql_dynamic_library_path: '$libdir'
postgresql_local_preload_libraries: []
# Version/platform Compatibility
# ------------------------------
postgresql_array_nulls: on
postgresql_backslash_quote: safe_encoding # on, off, or safe_encoding
postgresql_default_with_oids: off
postgresql_escape_string_warning: on
postgresql_lo_compat_privileges: off
postgresql_quote_all_identifiers: off
postgresql_sql_inheritance: on
postgresql_standard_conforming_strings: on
postgresql_synchronize_seqscans: on
postgresql_transform_null_equals: off
# Extensions
# ----------
# If enabled, this will install the contrib packages.
postgresql_contrib: no
# If enabled, will install the [PostGIS] extension
# from the repositories, at the indicated version.
# [PostGIS] http://postgis.net/
postgresql_postgis: no
postgresql_postgis_version: '2.1'
# If enabled, this will install the development headers.
postgresql_dev_headers: no