pgsql: enable repmgrd logs, add comments and remove event script refs #33392

ansible/playbooks/postgres-maintenance.yml

@@ -67,4 +67,16 @@
       become: yes
       become_user: postgres
       when: copy_from_primary is succeeded
+
+- name: REPMGRD RESTART
+  hosts: postgres
+  tags: [ 'never', 'restart-repmgrd' ]
+  tasks:
+    - name: kill repmgrd
+      command: "pkill repmgrd"
+      ignore_errors: yes
+    - name: restart repmgrd
+      systemd:
+        name: repmgrd
+        state: restarted
 ...

ansible/roles/postgres-ha/tasks/main.yml

@@ -83,12 +83,6 @@
     regexp: '^#?{{ item.key }}=.*$'
     replace: '{{ item.key }}={{ item.value }}'
 
-- name: copy events notification script
-  template:
-    src: repmgr-event.py.j2
-    dest: /usr/bin/repmgr-event
-    mode: 0755
-
 - name: configure sudo
   copy:
     dest: /etc/sudoers.d/postgres

ansible/roles/postgres-ha/templates/repmgr.conf.j2

+# https://raw.githubusercontent.com/2ndQuadrant/repmgr/master/repmgr.conf.sample
+#------------------------------------------------------------------------------
+# Node configuration settigns
+#------------------------------------------------------------------------------
+# node information
 node_id={{ repmgr_node_id }}
 node_name={{ repmgr_node_name }}
+# database connection information
 conninfo='{{ repmgr_conninfo }}'
+# repmgr data directory
 data_directory='/var/lib/postgresql/{{ repmgr_pg_version }}/{{ repmgr_pg_cluster }}'
+# log level
+log_level='INFO'
+# log to file
+log_file='/var/log/postgresql/repmgrd.log'
+
+#------------------------------------------------------------------------------
+# Replication settings
+#------------------------------------------------------------------------------
+# physical replication slots (at least the number of standbys which will connect to the primary)
 use_replication_slots=1
-event_notification_command='/usr/bin/repmgr-event %n %e %s "%t" "%d"'
+
+#------------------------------------------------------------------------------
+# Event notification settings
+#------------------------------------------------------------------------------
+# RM#33392
+# external program or script (should be executable by repmgr user)
+#event_notification_command='/usr/bin/repmgr-event %n %e %s "%t" "%d"'
+
+#------------------------------------------------------------------------------
+# Environment/command settings
+#------------------------------------------------------------------------------
+# path to PostgreSQL binary directory ((location of pg_ctl, pg_basebackup etc.) 
 pg_bindir='/usr/lib/postgresql/{{ repmgr_pg_version }}/bin/'
+
+#------------------------------------------------------------------------------
+# external command options
+#------------------------------------------------------------------------------
+# options to append to "pg_ctl"
 pg_ctl_options='-s'
+# options to append to "pg_basebackup"
 pg_basebackup_options='--label=repmgr_backup'
+
+#------------------------------------------------------------------------------
+# Failover and monitoring settings (repmgrd)
+#------------------------------------------------------------------------------
+# The max length of time (in seconds) to wait for the new primary to become available
 primary_follow_timeout=30
+# determines what action to take in the event of upstream failure
+#  'automatic': repmgrd will automatically attempt to promote the node or follow the new upstream node
+#  'manual': repmgrd will take no action and the node will require manual attention to reattach it to replication
 failover=automatic
+# Number of attempts which will be made to reconnect to an unreachable primary (or other upstream node)
 reconnect_attempts=6
+# Interval between attempts to reconnect to an unreachable primary (or other upstream node)
 reconnect_interval=5
+# command repmgrd executes when promoting a new primary
 promote_command='repmgr -f {{ repmgr_config }} standby promote'
+# command repmgrd executes when instructing a standby to follow a new primary
 follow_command='repmgr -f {{ repmgr_config }} standby follow -W'
+
+#------------------------------------------------------------------------------
+# service control commands
+#------------------------------------------------------------------------------
+# override the default pg_ctl commands used to stop, start, restart, reload and promote the PostgreSQL cluster
 service_start_command='sudo systemctl start postgresql@{{ repmgr_pg_version }}-{{ repmgr_pg_cluster }}'
 service_stop_command='sudo systemctl stop postgresql@{{ repmgr_pg_version }}-{{ repmgr_pg_cluster }}'
 service_restart_command='sudo systemctl restart postgresql@{{ repmgr_pg_version }}-{{ repmgr_pg_cluster }}'
 service_reload_command='sudo systemctl reload postgresql@{{ repmgr_pg_version }}-{{ repmgr_pg_cluster }}'
+