feature: add a new 'clever_restart_only' flag to restart an app

This new flag will perform a restart on the target clever cloud
application instead of deploying it.

3 files changed, 33 insertions, 1 deletions

diff --git a/README.md b/README.md
index 22c70b4..51b9e3d 100644
--- a/README.md
+++ b/README.md
@@ -35,13 +35,14 @@ Variables for the application:
 - `clever_build_flavor`: an optional text value used to configure the size of the dedicated build instance (for instance `S` or `XL`). If not defined, it delegates to clever cloud default behaviour. Setting `disabled` disables the dedicated build instance altogether.
 - `clever_scaling`: an optional object used to configure the runtime instances flavours and numbers. If not defined, it delegates to clever cloud default behaviour.
 
-Variables specific to deployment, default should be fine:
+Variables specific to deployment, defaults should be fine:
 
 - `clever_cli_version`: Version of clever cli tools, default to `2.6.1`.
 - `clever_user_path`: Path relative to ansible_user home dir where cli tools and helpers are installed default to `.local/bin`.
 - `clever_app_root`: Path of the application to deploy, default to `app_root` if defined or `"{{ playbook_dir }}/.."` otherwise. I.e. the default behavior will work fine if you define a playbook using this role in a one level deep directory (e.g. `deployment/`) of the root of the application.
 - `clever_app_confdir`: Path where to store clever cloud data specific to this application, default to `"{{ clever_app_root }}/.clever_cloud"`
 - `clever_login_file`: Path to store login information. Default to `"{{ clever_app_confdir }}/login"`.
+- `clever_restart_only`: set to `true` to skip any deployment related tasks (domain, scaling, env, deploy, …) and only restart the application. Optional.
 
 Variables specific to Haskell applications:
 
diff --git a/tasks/main.yml b/tasks/main.yml
index 3c59c90..002dc9c 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -24,13 +24,22 @@
 
 - name: Deploy app
   import_tasks: deploy.yml
+  when: not clever_restart_only is defined or not clever_restart_only
   tags:
     - clever
     - clever-deploy
 
 - name: Post deploy tasks
   import_tasks: post_deploy.yml
+  when: not clever_restart_only is defined or not clever_restart_only
   tags:
     - clever
     - clever-deploy
     - clever-env
+
+- name: Restart app
+  import_tasks: restart.yml
+  when: clever_restart_only is defined and clever_restart_only
+  tags:
+    - clever
+    - clever-restart
diff --git a/tasks/restart.yml b/tasks/restart.yml
new file mode 100644
index 0000000..e2a8891
--- /dev/null
+++ b/tasks/restart.yml
@@ -0,0 +1,22 @@
+---
+- name: Restart app on Clever-Cloud
+  shell: "clever restart"
+  args:
+    chdir: "{{ clever_app_root }}"
+  environment:
+    CONFIGURATION_FILE: "{{ clever_login_file }}"
+  async: 300 # 5 minutes
+  poll: 0
+  ignore_errors: true
+  register: clever_deploy
+  tags:
+    - skip_ansible_lint
+
+- name: Wait up to 5 minutes for restart completion
+  async_status:
+    jid: "{{ clever_deploy.ansible_job_id }}"
+  register: job_result
+  until: job_result.finished
+  ignore_errors: true
+  delay: 30
+  retries: 10 # 5 minutes (10 * 30 secs delay)