Add cron role

roles/cron/defaults/main.yml

@@ -0,0 +1,4 @@
+---
+# defaults file for cron
+
+cron_jobs: []

roles/cron/tasks/main.yml

@@ -0,0 +1,38 @@
+---
+# tasks file for cron
+
+- name: Add cron jobs
+  cron:
+    cron_file: "{{ item.file | default('') }}"
+    user: "{{ item.user | default('postgres')  }}"
+    minute: "{{ item.minute | default('*') }}"
+    hour: "{{ item.hour | default('*') }}"
+    day: "{{ item.day | default('*') }}"
+    month: "{{ item.month | default('*') }}"
+    weekday: "{{ item.weekday | default('*') }}"
+    name: "{{ item.name }}"
+    disabled: "{{ item.disabled | default(False) }}"
+    state: "{{ item.state | default('present') }}"
+    job: "{{ item.job }}"
+  loop: "{{ cron_jobs }}"
+  when:
+    - cron_jobs is defined and cron_jobs | length > 0
+    - remove_postgres is undefined
+
+- name: Uninstall cron jobs
+  cron:
+    cron_file: "{{ item.file | default('') }}"
+    user: "{{ item.user | default('postgres')  }}"
+    minute: "{{ item.minute | default('*') }}"
+    hour: "{{ item.hour | default('*') }}"
+    day: "{{ item.day | default('*') }}"
+    month: "{{ item.month | default('*') }}"
+    weekday: "{{ item.weekday | default('*') }}"
+    name: "{{ item.name }}"
+    state: "absent"
+    job: "{{ item.job }}"
+  loop: "{{ cron_jobs }}"
+  when:
+    - cron_jobs is defined and cron_jobs | length > 0
+    - remove_postgres is defined and remove_postgres | bool
+  tags: uninstall

roles/pgbackrest/tasks/main.yml

@@ -116,19 +116,5 @@
 #    - "'postgres_cluster' in group_names"
 #  tags: pgbackrest, pgbackrest_bootstrap_script
 
-- name: Crontab pgbackrest
-  become: true
-  cron:
-    name: "{{ item.name | default('Backup') }}"
-    cron_file: /etc/cron.d/pgbackrest
-    job: "/usr/bin/pgbackrest --type={{ item.type }} --stanza={{ pgbackrest_stanza }} backup"
-    user: postgres
-    dow: "{{ item.dow }}"
-    hour: "{{ item.hour }}"
-    minute: "{{ item.minute }}"
-  ignore_errors: true
-  loop: "{{ pgbackrest_cron | flatten(1) }}"
-  when: pgbackrest_cron is defined and pgbackrest_cron | length > 0
-  tags: pgbackrest_cron
 
 ...

vars/main.yml

@@ -427,9 +427,36 @@ pgbackrest_conf:
 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)
-pgbackrest_cron: []
-#  - { name: "Full Backup", type: "full", hour: "06", minute: "30", dow: "0" }
-#  - { name: "Diff Backup", type: "diff", hour: "06", minute: "30", dow: "1-6" }
+
+cron_jobs: []
+#  - name: "PgBackerest: Full Backup"
+#    file: /etc/cron.d/pgbackrest
+#    user: "{{ patroni_superuser_username }}"
+#    minute: "30"
+#    hour: "6"
+#    day: "*"
+#    month: "*"
+#    weekday: "0"
+#    job: "if [ "$(psql -tAXc 'select pg_is_in_recovery()')" = "f" ]; then pgbackrest --type=full --stanza={{ pgbackrest_stanza }} backup; fi"
+#  - name: "PgBackerest: Diff Backup"
+#    file: /etc/cron.d/pgbackrest
+#    user: "{{ patroni_superuser_username }}"
+#    minute: "30"
+#    hour: "6"
+#    day: "*"
+#    month: "*"
+#    weekday: "1-6"
+#    job: "if [ "$(psql -tAXc 'select pg_is_in_recovery()')" = "f" ]; then pgbackrest --type=diff --stanza={{ pgbackrest_stanza }} backup; fi"
+# Example for walg
+#  - name: "WAL-G: Create daily backup"
+#    user: "{{ patroni_superuser_username }}"
+#    file: /etc/cron.d/walg
+#    minute: "30"
+#    hour: "6"
+#    day: "*"
+#    month: "*"
+#    weekday: "*"
+#    job: "[ '200' = $(curl -s -o /dev/null -w '\\%{http_code}' http://{{ inventory_hostname }}:8008) ] && /usr/local/bin/wal-g backup-push"
 
 # 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).