Add epicli versioning (#1306) (#2650)

* Add epicli versioning (#1306)

Co-authored-by: to-bar <[email protected]>

ansible/playbooks/postflight.yml

@@ -5,3 +5,31 @@
   become_method: sudo
   roles:
     - postflight
+
+- name: Update status in epicli execution history file
+  hosts: all
+  gather_facts: false
+  become: true
+  become_method: sudo
+  tasks:
+    - name: Load the history file
+      slurp:
+        src: /var/lib/epiphany/history.yml
+      register: history_file
+
+    - name: Parse history file and update the status
+      set_fact:
+        history_latest_entry: >-
+          {{ _history_file_yaml.deployments[0] | combine({'status': 'completed'})}}
+        history_other_entries: >-
+          {{ _history_file_yaml.deployments[1:] }}
+      vars:
+        _history_file_yaml: "{{ history_file.content | b64decode | from_yaml }}"
+
+    - name: Save updated history to file
+      copy:
+        content: "{{ _new_content | to_nice_yaml(indent=2) }}"
+        dest: /var/lib/epiphany/history.yml
+      vars:
+        _new_content:
+          deployments: "{{ [history_latest_entry] + history_other_entries }}"

ansible/playbooks/preflight.yml

@@ -2,7 +2,7 @@
 # Ansible playbook that checks if requirements are met
 
 - hosts: all
-  gather_facts: yes
+  gather_facts: true
   become: false  # user may be not added to sudoers
   module_defaults:
     shell:
@@ -11,3 +11,61 @@
     - preflight
   environment:
     KUBECONFIG: "{{ kubeconfig.remote }}"
+
+- name: Add entry to epicli execution history on each host
+  hosts: all
+  gather_facts: true
+  become: true
+  become_method: sudo
+  vars:
+    history_latest_entry: {}
+    history_other_entries: []
+    history_new_entry:
+      version: "{{ epiphany_version }}"
+      date: "{{ ansible_date_time.date }} {{ ansible_date_time.time }}"
+      mode: "{{ is_upgrade_run | ternary('upgrade', 'apply') }}"
+      status: started
+  tasks:
+    - name: Create epiphany directory if it does not exist
+      file:
+        path: /var/lib/epiphany
+        state: directory
+        mode: u=rwx,go=rx
+
+    - name: Get history file status
+      stat:
+        path: /var/lib/epiphany/history.yml
+      register: history_file
+
+    - name: Parse history file
+      when:
+        - history_file.stat.exists
+        - history_file.stat.size > 0
+      block:
+        - name: Load history file
+          slurp:
+            src: /var/lib/epiphany/history.yml
+          register: history_file_handler
+
+        - name: Parse history file
+          set_fact:
+            history_latest_entry: "{{ _history_file_yaml.deployments[0] }}"
+            history_other_entries: "{{ _history_file_yaml.deployments[1:] }}"
+          vars:
+            _history_file_yaml: "{{ history_file_handler.content | b64decode | from_yaml }}"
+
+    - name: Check previous status and update if needed
+      set_fact:
+        history_latest_entry: "{{ history_latest_entry | combine({'status': 'failed'}) }}"
+      when:
+        - history_latest_entry.status is defined
+        - history_latest_entry.status != 'completed'
+
+    - name: Update history and save to file
+      copy:
+        content: "{{ _new_content | to_nice_yaml(indent=2) }}"
+        dest: /var/lib/epiphany/history.yml
+      vars:
+        _new_content:
+          deployments: >-
+            {{ [history_new_entry] + history_latest_entry | ternary([history_latest_entry], []) + history_other_entries }}

cli/engine/ansible/AnsibleVarsGenerator.py

@@ -142,6 +142,7 @@ def populate_group_vars(self, ansible_dir):
         main_vars['is_upgrade_run'] = self.is_upgrade_run
         main_vars['roles_with_generated_vars'] = sorted(self.roles_with_generated_vars)
         main_vars['upgrade_components'] = Config().upgrade_components
+        main_vars['epiphany_version'] = VERSION
 
         # Consider to move this to the provider level.
         if self.cluster_model.provider != 'any':

docs/changelogs/CHANGELOG-1.3.md

@@ -4,6 +4,7 @@
 
 ### Added
 
+- [#1306](https://github.com/epiphany-platform/epiphany/issues/1306) - Allow to check on VMs which epicli version was used to deploy/upgrade components
 - [#1487](https://github.com//epiphany-platform/epiphany/issues/1487) - Add RabbitMQ monitoring
 - [#2600](https://github.com/epiphany-platform/epiphany/issues/2600) - Change epicli output structure
 - [#2655](https://github.com/epiphany-platform/epiphany/issues/2655) - Add 'repmgr node check' to upgrade preflight checks and auto-tests