Add backup for mini-server.

miniserver.yaml

@@ -0,0 +1,65 @@
+---
+# This playbook backups database used for volkszaehler.
+- name: Backup Mini-Server
+  hosts: all
+  gather_facts: true
+
+  tasks:
+    - name: Backup Mini-Server
+      block:
+        - include_vars: vars/mattermost.yaml
+        - include_vars: vars/mini-server.yaml
+
+        - name: Create backup directory
+          file:
+            path: "{{ backup_dir }}"
+            state: directory
+
+        - name: Backup mysql databases
+          shell: docker exec {{ item }}-db mysqldump -u{{ item }} -p{{ lookup('vars', item ~ '-password') }} {{ item }} > {{ backup_dir }}/{{ item }}/db-{{ ansible_date_time.iso8601_basic_short }}.sql
+          loop: "{{ mysql_databases }}"
+
+        - name: Compress database backup files
+          shell: gzip {{ backup_dir }}/{{ item }}/db-{{ ansible_date_time.iso8601_basic_short }}.sql
+          loop: "{{ mysql_databases }}"
+
+        - name: Fetch database backups
+          fetch:
+            src: "{{ backup_dir }}/{{ item }}/db-{{ ansible_date_time.iso8601_basic_short }}.sql.gz"
+            dest: "{{ local_backup }}/{{ item }}/db-{{ ansible_date_time.iso8601_basic_short }}.sql.gz/"
+            flat: yes
+          loop: "{{ mysql_databases }}"
+
+        - name: Clean backup directory
+          file:
+            path: "{{ backup_dir }}"
+            state: absent
+
+        - name: Inform Mattermost about success
+          uri:
+            url: "{{ mattermost_url }}"
+            validate_certs: no
+            method: POST
+            body_format: json
+            body:
+              channel_id: "{{ channel_id }}"
+              message: "{{ ansible_date_time.date }} {{ ansible_date_time.time }}: Playbook ran successful ({{ ansible_play_name }})"
+            headers:
+              Content-Type: application/json
+              Authorization: "Bearer {{ semaphore_token }}"
+            status_code: [200, 201]
+
+      rescue:
+        - name: Inform Mattermost about error
+          uri:
+            url: "{{ mattermost_url }}"
+            validate_certs: no
+            method: POST
+            body_format: json
+            body:
+              channel_id: "{{ channel_id }}"
+              message: "{{ ansible_date_time.date }} {{ ansible_date_time.time }}: Playbook ran with error ({{ ansible_play_name }})"
+            headers:
+              Content-Type: application/json
+              Authorization: "Bearer {{ error_token }}"
+            status_code: [200, 201]

vars/mini-server.yaml

@@ -0,0 +1,12 @@
+mysql_user: root
+mysql_password: !vault |
+  $ANSIBLE_VAULT;1.1;AES256
+  36326232633139633763643864663666616165663135646530666435313362316463663630346462
+  3261653735613434633134623639313135373466633038370a613235313062343737636661363561
+  32306530666265336535376534633937303931653566313761663564653263326365353766376232
+  3065376433323530310a666466313638623163663435383533313537633238373737353131366139
+  6566
+backup_dir: /var/chris
+databases: ['volkszaehler']
+
+local_backup: /home/mini-server/backup