added backup cronjobs

tasks/main.yml

@@ -38,5 +38,27 @@
     hour: 23
     minute: 26
 
+- name: add postgresql backup folder
+  file:
+    path: /opt/postgresbackup/
+    state: directory
+    owner: postgres
+    group: postgres
+    mode: '750'
+
+- name: add backup cronjob for easier backup/restore
+  cron:
+    name: db backup
+    job: '/usr/bin/pg_dumpall | gzip > /opt/postgresbackup/$(date "+%s-%Y%M%d-%H%M.sql.gz")'
+    user: postgres
+    hour: 5,11,17,23
+    minute: 45
+
+- name: add backup cleanup cronjob
+  cron:
+    name: db backup cleanup
+    job: 'find /opt/postgresbackup/* -mtime +9 -type f -exec rm {} \;'
+    special_time: daily
+
 - name: flush handlers so postgres is ready before other roles try to use it
   meta: flush_handlers