Docker upgrade playbook added

README.md

@@ -26,22 +26,15 @@ ansible-playbook -u root discourse_upgrade.yml -i "${SERVERNAME}," -e "hostname=
 
 ## Docker Upgrade
 
-Every 3 months there is a new version of `docker-ce` released, the steps to upgrade (this could potentially be written as a Ansible Playbook:
+At least every 3 months there is a new version of `docker-ce` released, see the
+[release notes](https://docs.docker.com/release-notes/docker-ce/), to upgrade
+Docker CE use this playbook:
 
 ```bash
-sudo -i
-su - discourse
-cd /var/discourse
-./launcher app stop
-exit
-apt-get update
-apt-get upgrade
-service docker status # check the uptime and that it is running
-su - discourse
-cd /var/discourse
-./launcher app start
+export SERVERNAME="community.coops.tech"
+ansible-playbook -u root docker_upgrade.yml -i "${SERVERNAME}," -e "hostname=${SERVERNAME}"
 ```
- 
+
 ## Discourse Install
 
 Ansible Playbooks to install

discourse_upgrade.yml

 ---
-- name: Install Discourse
+- name: Upgrade Discourse
   hosts: "{{ hostname }}"
 
   roles:

docker_upgrade.yml

+---
+- name: Upgrade Docker CE 
+  hosts: "{{ hostname }}"
+
+  roles:
+    - docker-upgrade

roles/docker-upgrade/tasks/main.yml

+---
+- name: Stop the Discourse container
+  command: bash launcher stop app 
+  args:
+    chdir: "/var/discourse"
+  become: yes
+  become_user: discourse
+
+- name: Update apt package list
+  apt:
+    update_cache: yes
+
+- name: Check if the Webarchitects logchange script is installed
+  command: which logchange
+  register: logchange
+
+- block:
+
+  - name: Get a list of the updates
+    shell: "apt-show-versions -b -u | xargs"
+    register: apt_updates
+  
+  - name: Record the updates in the /root/Changelog
+    command: 'logchange "{{ apt_updates.stdout }} : Updated"'
+    when: apt_updates.stdout != ""
+
+  when: logchange.stdout != "" 
+
+- name: Check if the Munin apt state file exists
+  stat:
+    path: "/var/lib/munin-node/plugin-state/nobody/plugin-apt.state"
+  register: munin_apt_state
+
+- block:
+
+  - name: Delete the Munin apt state file
+    file:
+      dest: "/var/lib/munin-node/plugin-state/nobody/plugin-apt.state"
+      state: absent
+
+  - name: Update the Munin apt state file
+    command: munin-run apt_all
+
+  when: munin_apt_state.stat.exists == True
+
+- name: Update all packages
+  apt:
+    upgrade: dist
+    autoclean: yes
+
+- name: Restart Docker CE
+  service:
+    name: docker
+    state: restarted
+
+- name: Start the Discourse container
+  command: bash launcher start app 
+  args:
+    chdir: "/var/discourse"
+  become: yes
+  become_user: discourse
+
+  
+