Upgrade Discpurse Playbook added

discourse_upgrade.yml

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

roles/discourse-upgrade/tasks/main.yml

+---
+- name: Discourse code updated
+  git:
+    repo: https://github.com/discourse/discourse_docker.git
+    dest: /var/discourse
+    update: yes
+  become: yes
+  become_user: 'discourse'
+
+- name: Discourse rebuild app
+  command: /var/discourse/launcher rebuild app 
+    args:
+    chdir: /var/discourse
+  become: yes
+  become_user: 'discourse'