forked from vitabaks/postgresql_cluster
-
Notifications
You must be signed in to change notification settings - Fork 0
/
main.yml
371 lines (325 loc) · 18.9 KB
/
main.yml
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
---
# yamllint disable rule:line-length
# yamllint disable rule:comments-indentation
# Proxy variables (optional) for download packages using a proxy server
proxy_env: {}
# http_proxy: http://10.128.64.9:3128
# https_proxy: http://10.128.64.9:3128
# -------------------------------------------
# Cluster variables
cluster_vip: "" # ip address for client access to databases in the cluster (optional)
vip_interface: "{{ ansible_default_ipv4.interface }}" # interface name (ex. "ens32")
patroni_cluster_name: "postgres-cluster" # specify the cluster name
patroni_install_version: "latest" # or specific version (example 1.5.6)
patroni_superuser_username: "postgres"
patroni_superuser_password: "postgres-pass" # please change password
patroni_replication_username: "replicator"
patroni_replication_password: "replicator-pass" # please change password
synchronous_mode: false # or 'true' for enable synchronous database replication
synchronous_mode_strict: false # if 'true' then block all client writes to the master, when a synchronous replica is not available
synchronous_node_count: 1 # number of synchronous standby databases
# Load Balancing
with_haproxy_load_balancing: false # or 'true' if you want to install and configure the load-balancing
haproxy_listen_port:
master: 5000
replicas: 5001
replicas_sync: 5002
replicas_async: 5003
stats: 7000
haproxy_maxconn:
global: 100000
master: 10000
replica: 10000
haproxy_timeout:
client: "60m"
server: "60m"
# vip-manager (if cluster_vip is specified and with_haproxy_load_balancing: false)
vip_manager_version: "1.0.2" # version to install
vip_manager_conf: "/etc/patroni/vip-manager.yml"
vip_manager_interval: "1000" # time (in milliseconds) after which vip-manager wakes up and checks if it needs to register or release ip addresses.
vip_manager_iface: "{{ vip_interface }}" # interface to which the virtual ip will be added
vip_manager_ip: "{{ cluster_vip }}" # the virtual ip address to manage
vip_manager_mask: "24" # netmask for the virtual ip
# DCS (Distributed Consensus Store)
dcs_exists: false # or 'true' if you do not want to install and configure the etcd cluster
dcs_type: "etcd"
# if dcs_exists: false and dcs_type: "etcd"
etcd_ver: "v3.3.27" # version for deploy etcd cluster
etcd_data_dir: "/var/lib/etcd"
etcd_cluster_name: "etcd-{{ patroni_cluster_name }}" # ETCD_INITIAL_CLUSTER_TOKEN
# if dcs_exists: true and dcs_type: "etcd" - specify ip address your etcd cluster in the "patroni_etcd_hosts" variable
# example (use existing cluster of 3 nodes)
patroni_etcd_hosts: []
# - { host: "10.128.64.140", port: "2379" }
# - { host: "10.128.64.142", port: "2379" }
# - { host: "10.128.64.143", port: "2379" }
# more options you can specify in the roles/patroni/templates/patroni.yml.j2
# https://patroni.readthedocs.io/en/latest/SETTINGS.html#etcd
# https://patroni.readthedocs.io/en/latest/SETTINGS.html#consul
# PostgreSQL variables
postgresql_version: "14"
# postgresql_data_dir: see vars/Debian.yml or vars/RedHat.yml
postgresql_port: "5432"
postgresql_encoding: "UTF8" # for bootstrap only (initdb)
postgresql_locale: "en_US.UTF-8" # for bootstrap only (initdb)
postgresql_data_checksums: true # for bootstrap only (initdb)
postgresql_password_encryption_algorithm: "scram-sha-256" # or "md5" if your clients do not work with passwords encrypted with SCRAM-SHA-256
# (optional) list of users to be created (if not already exists)
postgresql_users: []
# - {name: "mydb-user", password: "mydb-user-pass", flags: "SUPERUSER"}
# - {name: "", password: "", flags: "NOSUPERUSER"}
# - {name: "", password: "", flags: "NOSUPERUSER"}
# - {name: "", password: "", flags: "NOLOGIN"}
# (optional) list of databases to be created (if not already exists)
postgresql_databases: []
# - {db: "mydatabase", encoding: "UTF8", lc_collate: "ru_RU.UTF-8", lc_ctype: "ru_RU.UTF-8", owner: "mydb-user"}
# - {db: "", encoding: "UTF8", lc_collate: "en_US.UTF-8", lc_ctype: "en_US.UTF-8", owner: ""}
# - {db: "", encoding: "UTF8", lc_collate: "en_US.UTF-8", lc_ctype: "en_US.UTF-8", owner: ""}
# (optional) list of schemas to be created (if not already exists)
postgresql_schemas: []
# - {schema: "myschema", db: "mydatabase", owner: "mydb-user"}
# (optional) list of database extensions to be created (if not already exists)
postgresql_extensions: []
# - {ext: "pg_stat_statements", db: "postgres"}
# - {ext: "pg_stat_statements", db: "mydatabase"}
# - {ext: "pg_stat_statements", db: "mydatabase", schema: "myschema"}
# - {ext: "pg_stat_statements", db: ""}
# - {ext: "pg_stat_statements", db: ""}
# - {ext: "pg_repack", db: ""} # postgresql-<version>-repack package is required
# - {ext: "pg_stat_kcache", db: ""} # postgresql-<version>-pg-stat-kcache package is required
# - {ext: "", db: ""}
# - {ext: "", db: ""}
# postgresql parameters to bootstrap dcs (are parameters for example)
postgresql_parameters:
- {option: "max_connections", value: "500"}
- {option: "superuser_reserved_connections", value: "5"}
- {option: "password_encryption", value: "{{ postgresql_password_encryption_algorithm }}"}
- {option: "max_locks_per_transaction", value: "64"} # raise this value (ex. 512) if you have queries that touch many different tables (partitioning)
- {option: "max_prepared_transactions", value: "0"}
- {option: "huge_pages", value: "try"} # or "on" if you set "vm_nr_hugepages" in kernel parameters
- {option: "shared_buffers", value: "512MB"} # please change this value
- {option: "work_mem", value: "128MB"} # please change this value
- {option: "maintenance_work_mem", value: "256MB"} # please change this value
- {option: "effective_cache_size", value: "4GB"} # please change this value
- {option: "checkpoint_timeout", value: "15min"}
- {option: "checkpoint_completion_target", value: "0.9"}
- {option: "min_wal_size", value: "2GB"}
- {option: "max_wal_size", value: "8GB"} # or 16GB/32GB
- {option: "wal_buffers", value: "32MB"}
- {option: "default_statistics_target", value: "1000"}
- {option: "seq_page_cost", value: "1"}
- {option: "random_page_cost", value: "4"} # "1.1" for SSD storage. Also, if your databases fits in shared_buffers
- {option: "effective_io_concurrency", value: "2"} # "200" for SSD storage
- {option: "synchronous_commit", value: "on"} # or 'off' if you can you lose single transactions in case of a crash
- {option: "autovacuum", value: "on"} # never turn off the autovacuum!
- {option: "autovacuum_max_workers", value: "5"}
- {option: "autovacuum_vacuum_scale_factor", value: "0.01"} # or 0.005/0.001
- {option: "autovacuum_analyze_scale_factor", value: "0.01"}
- {option: "autovacuum_vacuum_cost_limit", value: "500"} # or 1000/5000
- {option: "autovacuum_vacuum_cost_delay", value: "2"}
- {option: "autovacuum_naptime", value: "1s"}
- {option: "max_files_per_process", value: "4096"}
- {option: "archive_mode", value: "on"}
- {option: "archive_timeout", value: "1800s"}
- {option: "archive_command", value: "cd ."} # not doing anything yet with WAL-s
# - {option: "archive_command", value: "wal-g wal-push %p"} # archive WAL-s using WAL-G
# - {option: "archive_command", value: "pgbackrest --stanza={{ pgbackrest_stanza }} archive-push %p"} # archive WAL-s using pgbackrest
- {option: "wal_level", value: "replica"}
- {option: "wal_keep_size", value: "2GB"}
- {option: "max_wal_senders", value: "10"}
- {option: "max_replication_slots", value: "10"}
- {option: "hot_standby", value: "on"}
- {option: "wal_log_hints", value: "on"}
- {option: "wal_compression", value: "on"}
- {option: "shared_preload_libraries", value: "pg_stat_statements,auto_explain"}
- {option: "pg_stat_statements.max", value: "10000"}
- {option: "pg_stat_statements.track", value: "all"}
- {option: "pg_stat_statements.track_utility", value: "false"}
- {option: "pg_stat_statements.save", value: "true"}
- {option: "auto_explain.log_min_duration", value: "10s"} # enable auto_explain for 10-second logging threshold. Decrease this value if necessary
- {option: "auto_explain.log_analyze", value: "true"}
- {option: "auto_explain.log_buffers", value: "true"}
- {option: "auto_explain.log_timing", value: "false"}
- {option: "auto_explain.log_triggers", value: "true"}
- {option: "auto_explain.log_verbose", value: "true"}
- {option: "auto_explain.log_nested_statements", value: "true"}
- {option: "auto_explain.sample_rate", value: "0.01"} # enable auto_explain for 1% of queries logging threshold
- {option: "track_io_timing", value: "on"}
- {option: "log_lock_waits", value: "on"}
- {option: "log_temp_files", value: "0"}
- {option: "track_activities", value: "on"}
- {option: "track_counts", value: "on"}
- {option: "track_functions", value: "all"}
- {option: "log_checkpoints", value: "on"}
- {option: "logging_collector", value: "on"}
- {option: "log_truncate_on_rotation", value: "on"}
- {option: "log_rotation_age", value: "1d"}
- {option: "log_rotation_size", value: "0"}
- {option: "log_line_prefix", value: "'%t [%p-%l] %r %q%u@%d '"}
- {option: "log_filename", value: "'postgresql-%a.log'"}
- {option: "log_directory", value: "{{ postgresql_log_dir }}"}
- {option: "hot_standby_feedback", value: "on"} # allows feedback from a hot standby to the primary that will avoid query conflicts
- {option: "max_standby_streaming_delay", value: "30s"}
- {option: "wal_receiver_status_interval", value: "10s"}
- {option: "idle_in_transaction_session_timeout", value: "10min"} # reduce this timeout if possible
- {option: "jit", value: "off"}
- {option: "max_worker_processes", value: "24"}
- {option: "max_parallel_workers", value: "8"}
- {option: "max_parallel_workers_per_gather", value: "2"}
- {option: "max_parallel_maintenance_workers", value: "2"}
# - {option: "old_snapshot_threshold", value: "60min"}
# - {option: "", value: ""}
# - {option: "", value: ""}
# specify additional hosts that will be added to the pg_hba.conf
postgresql_pg_hba:
- {type: "local", database: "all", user: "{{ patroni_superuser_username }}", address: "", method: "trust"}
- {type: "local", database: "all", user: "all", address: "", method: "peer"}
- {type: "host", database: "all", user: "all", address: "127.0.0.1/32", method: "{{ postgresql_password_encryption_algorithm }}"}
- {type: "host", database: "all", user: "all", address: "::1/128", method: "{{ postgresql_password_encryption_algorithm }}"}
# - {type: "host", database: "mydatabase", user: "mydb-user", address: "192.168.0.0/24", method: "{{ postgresql_password_encryption_algorithm }}"}
# - {type: "host", database: "all", user: "all", address: "192.168.0.0/24", method: "ident", options: "map=main"} # use pg_ident
# list of lines that Patroni will use to generate pg_ident.conf
postgresql_pg_ident: []
# - {mapname: "main", system_username: "postgres", pg_username: "backup"}
# - {mapname: "", system_username: "", pg_username: ""}
# PgBouncer parameters
pgbouncer_install: true # or 'false' if you do not want to install and configure the pgbouncer service
pgbouncer_conf_dir: "/etc/pgbouncer"
pgbouncer_log_dir: "/var/log/pgbouncer"
pgbouncer_listen_port: 6432
pgbouncer_max_client_conn: 10000
pgbouncer_max_db_connections: 1000
pgbouncer_default_pool_size: 20
pgbouncer_default_pool_mode: "session"
pgbouncer_generate_userlist: true # generate the authentication file (userlist.txt) from the pg_shadow system table
pgbouncer_auth_type: "{{ postgresql_password_encryption_algorithm }}"
pgbouncer_ignore_startup_parameters: "extra_float_digits,geqo"
pgbouncer_pools:
- {name: "postgres", dbname: "postgres", pool_parameters: ""}
# - {name: "mydatabase", dbname: "mydatabase", pool_parameters: "pool_size=20 pool_mode=transaction"}
# - {name: "", dbname: "", pool_parameters: ""}
# - {name: "", dbname: "", pool_parameters: ""}
# Extended variables (optional)
patroni_ttl: 30
patroni_loop_wait: 10
patroni_retry_timeout: 10
patroni_maximum_lag_on_failover: 1048576
patroni_master_start_timeout: 300
# https://patroni.readthedocs.io/en/latest/replica_bootstrap.html#standby-cluster
patroni_standby_cluster:
host: "" # an address of remote master
port: "5432" # a port of remote master
# primary_slot_name: "" # which slot on the remote master to use for replication (optional)
# restore_command: "" # command to restore WAL records from the remote master to standby leader (optional)
# recovery_min_apply_delay: "" # how long to wait before actually apply WAL records on a standby leader (optional)
patroni_log_destination: stderr # or 'logfile'
# if patroni_log_destination: logfile
patroni_log_dir: /var/log/patroni
patroni_log_level: info
patroni_log_traceback_level: error
patroni_log_format: "%(asctime)s %(levelname)s: %(message)s"
patroni_log_dateformat: ""
patroni_log_max_queue_size: 1000
patroni_log_file_num: 4
patroni_log_file_size: 25000000 # bytes
patroni_log_loggers_patroni_postmaster: warning
patroni_log_loggers_urllib3: warning # or 'debug'
patroni_postgresql_use_pg_rewind: true # or 'false'
# try to use pg_rewind on the former leader when it joins cluster as a replica.
patroni_remove_data_directory_on_rewind_failure: false # or 'true' (if use_pg_rewind: 'true')
# avoid removing the data directory on an unsuccessful rewind
# if 'true', Patroni will remove the PostgreSQL data directory and recreate the replica.
patroni_remove_data_directory_on_diverged_timelines: false # or 'true'
# if 'true', Patroni will remove the PostgreSQL data directory and recreate the replica
# if it notices that timelines are diverging and the former master can not start streaming from the new master.
# https://patroni.readthedocs.io/en/latest/replica_bootstrap.html#bootstrap
patroni_cluster_bootstrap_method: "initdb" # or "wal-g", "pgbackrest", "pg_probackup"
# https://patroni.readthedocs.io/en/latest/replica_bootstrap.html#building-replicas
patroni_create_replica_methods:
# - pgbackrest
# - wal_g
# - pg_probackup
- basebackup
pgbackrest:
- {option: "command", value: "/usr/bin/pgbackrest --stanza={{ pgbackrest_stanza }} --delta restore"}
- {option: "keep_data", value: "True"}
- {option: "no_params", value: "True"}
wal_g:
- {option: "command", value: "wal-g backup-fetch {{ postgresql_data_dir }} LATEST"}
- {option: "no_params", value: "True"}
basebackup:
- {option: "max-rate", value: "100M"}
- {option: "checkpoint", value: "fast"}
pg_probackup:
- {option: "command", value: "pg_probackup-{{ pg_probackup_version }} restore -B {{ pg_probackup_dir }} --instance {{ pg_probackup_instance }} -j {{ pg_probackup_threads }} {{ pg_probackup_add_keys }}"}
- {option: "no_params", value: "true"}
# "restore_command" written to recovery.conf when configuring follower (create replica)
postgresql_restore_command: ""
# postgresql_restore_command: "wal-g wal-fetch %f %p" # restore WAL-s using WAL-G
# postgresql_restore_command: "pgbackrest --stanza={{ pgbackrest_stanza }} archive-get %f %p" # restore WAL-s using pgbackrest
# postgresql_restore_command: "pg_probackup-{{ pg_probackup_version }} archive-get -B {{ pg_probackup_dir }} --instance {{ pg_probackup_instance }} --wal-file-path=%p --wal-file-name=%f" # restore WAL-s using pg_probackup
# pg_probackup
pg_probackup_install: false # or 'true'
pg_probackup_install_from_postgrespro_repo: true # or 'false'
pg_probackup_version: "{{ postgresql_version }}"
pg_probackup_instance: "pg_probackup_instance_name"
pg_probackup_dir: "/mnt/backup_dir"
pg_probackup_threads: "4"
pg_probackup_add_keys: "--recovery-target=latest --skip-external-dirs --no-validate"
pg_probackup_patroni_cluster_bootstrap_command: "pg_probackup-{{ pg_probackup_version }} restore -B {{ pg_probackup_dir }} --instance {{ pg_probackup_instance }} -j {{ pg_probackup_threads }} {{ pg_probackup_add_keys }}"
# WAL-G
wal_g_install: false # or 'true'
wal_g_ver: "v0.2.19"
wal_g_json: # more options see https://github.com/wal-g/wal-g#configuration
- {option: "AWS_ACCESS_KEY_ID", value: "minio"}
- {option: "AWS_SECRET_ACCESS_KEY", value: "miniosecret"}
- {option: "AWS_ENDPOINT", value: "http://172.26.9.200:9000"}
- {option: "WALG_S3_PREFIX", value: "s3://bucket"}
- {option: "AWS_S3_FORCE_PATH_STYLE", value: "true"}
- {option: "WALG_COMPRESSION_METHOD", value: "brotli"}
- {option: "PGDATA", value: "{{ postgresql_data_dir }}"}
- {option: "PGHOST", value: "{{ postgresql_unix_socket_dir }}"}
# - {option: "AWS_REGION", value: "us-east-1"}
# - {option: "WALG_S3_CA_CERT_FILE", value: "/path/to/custom/ca/file"}
# - {option: "", value: ""}
wal_g_patroni_cluster_bootstrap_command: "wal-g backup-fetch {{ postgresql_data_dir }} LATEST"
# pgBackRest
pgbackrest_install: false # or 'true'
pgbackrest_install_from_pgdg_repo: true # or 'false'
pgbackrest_stanza: "stanza_name" # specify your --stanza
pgbackrest_repo_type: "posix" # or "s3"
pgbackrest_repo_host: "10.128.64.50" # dedicated repository host (if repo_type: "posix")
pgbackrest_repo_user: "postgres" # if "repo_host" is set
pgbackrest_conf_file: "/etc/pgbackrest/pgbackrest.conf"
# see more options https://pgbackrest.org/configuration.html
pgbackrest_conf:
global: # [global] section
- {option: "log-level-file", value: "detail"}
- {option: "log-path", value: "/var/log/pgbackrest"}
- {option: "repo1-type", value: "{{ pgbackrest_repo_type |lower }}"}
- {option: "repo1-host", value: "{{ pgbackrest_repo_host }}"}
- {option: "repo1-host-user", value: "{{ pgbackrest_repo_user }}"}
# - {option: "", value: ""}
stanza: # [stanza_name] section
- {option: "pg1-path", value: "{{ postgresql_data_dir }}"}
- {option: "process-max", value: "2"}
- {option: "recovery-option", value: "recovery_target_action=promote"}
# - {option: "", value: ""}
pgbackrest_patroni_cluster_restore_command:
'/usr/bin/pgbackrest --stanza={{ pgbackrest_stanza }} --delta restore' # restore from latest backup
# '/usr/bin/pgbackrest --stanza={{ pgbackrest_stanza }} --type=time "--target=2020-06-01 11:00:00+03" --delta restore' # Point-in-Time Recovery (example)
# PITR mode (if patroni_cluster_bootstrap_method: "pgbackrest" or "wal-g"):
# 1) The database cluster directory will be cleaned (for "wal-g") or overwritten (for "pgbackrest" --delta restore).
# 2) And also the patroni cluster "{{ patroni_cluster_name }}" will be removed from the DCS (if exist) before recovery.
disable_archive_command: true # or 'false' to not disable archive_command after restore
keep_patroni_dynamic_json: true # or 'false' to remove patroni.dynamic.json after restore (if exists)
# Netdata - https://github.com/netdata/netdata
netdata_install: false # or 'true' for install Netdata on postgresql cluster nodes (with kickstart.sh)
netdata_install_options: "--stable-channel --disable-telemetry --dont-wait"
netdata_conf:
web_bind_to: "*"
# https://learn.netdata.cloud/docs/store/change-metrics-storage
memory_mode: "dbengine" # The long-term metrics storage with efficient RAM and disk usage.
page_cache_size: 64 # Determines the amount of RAM in MiB that is dedicated to caching Netdata metric values.
dbengine_disk_space: 1024 # Determines the amount of disk space in MiB that is dedicated to storing Netdata metric values.
...