Build-operate workflow trial - allow for stop-starting cluster.

README.md

@@ -45,6 +45,7 @@ consistency.
 
 | Variable                       | Description                                                              | Default Value                  |
 |--------------------------------|--------------------------------------------------------------------------|--------------------------------|
+| `k3s_cluster_state`            | State of cluster, options: installed, started, stopped, restarted.       | installed                      |
 | `k3s_release_version`          | Use a specific version of k3s, eg. `v0.2.0`. Specify `false` for latest. | `false`                        |
 | `k3s_github_url`               | Set the GitHub URL to install k3s from.                                  | https://github.com/rancher/k3s |
 | `k3s_install_dir`              | Installation directory for k3s.                                          | `/usr/local/bin`               |

defaults/main.yml

@@ -1,5 +1,9 @@
 ---
 
+# k3s cluster state, options: installed, started, stopped, restarted
+# (default: installed)
+k3s_cluster_state: installed
+
 # Use a specific k3s version, if set to "false" we will get the latest
 # k3s_release_version: v0.1.0
 k3s_release_version: false

molecule/default/playbook-restart-cluster.yml

@@ -0,0 +1,9 @@
+---
+- name: Converge
+  hosts: all
+  become: true
+  vars:
+    molecule_is_test: true
+    k3s_cluster_state: restarted
+  roles:
+    - role: xanmanning.k3s

molecule/default/playbook-start-cluster.yml

@@ -0,0 +1,9 @@
+---
+- name: Converge
+  hosts: all
+  become: true
+  vars:
+    molecule_is_test: true
+    k3s_cluster_state: started
+  roles:
+    - role: xanmanning.k3s

molecule/default/playbook-stop-cluster.yml

@@ -0,0 +1,9 @@
+---
+- name: Converge
+  hosts: all
+  become: true
+  vars:
+    molecule_is_test: true
+    k3s_cluster_state: stopped
+  roles:
+    - role: xanmanning.k3s

tasks/main.yml

@@ -1,27 +1,11 @@
 ---
 
-- import_tasks: preconfigure-k3s.yml
+- name: Check to see if k3s_cluster_state is a supported value
+  assert:
+    that:
+      - k3s_cluster_state in ['installed', 'started', 'stopped', 'restarted']
+    fail_msg: "k3s_cluster_state not valid. Check README.md for details."
+    success_msg: "k3s_cluster_state is valid."
+  when: k3s_cluster_state is defined
 
-- include_tasks: install-docker-prerequisites-{{ ansible_os_family | lower }}.yml
-  when: k3s_use_docker
-        and ((k3s_control_workers)
-             or (not k3s_control_workers and not k3s_control_node))
-
-- import_tasks: install-docker.yml
-  when: k3s_use_docker
-        and ((k3s_control_workers)
-           or (not k3s_control_workers and not k3s_control_node))
-        and ansible_distribution | replace(" ", "-") | lower not in ['amazon', 'suse', 'opensuse-leap']
-
-- include_tasks: install-docker-{{ ansible_distribution | replace(" ", "-") | lower }}.yml
-  when: ansible_distribution | replace(" ", "-") | lower in ['amazon', 'suse', 'opensuse-leap']
-
-- import_tasks: get-version.yml
-  when: k3s_release_version is not defined or not k3s_release_version
-
-- import_tasks: download-k3s.yml
-
-- import_tasks: install-k3s.yml
-
-- import_tasks: configure-k3s-cluster.yml
-  when: play_hosts | length > 1
+- import_tasks: state-{{ (k3s_cluster_state | lower) | default('installed') }}.yml

tasks/operate/start-k3s.yml

@@ -0,0 +1,7 @@
+---
+
+- name: Ensure k3s service is started
+  service:
+    name: k3s
+    state: started
+    enabled: true

tasks/operate/stop-k3s.yml

@@ -0,0 +1,7 @@
+---
+
+- name: Ensure k3s service is stopped
+  service:
+    name: k3s
+    state: stopped
+    enabled: false

tasks/state-installed.yml

@@ -0,0 +1,27 @@
+---
+
+- import_tasks: preconfigure-k3s.yml
+
+- include_tasks: build/install-docker-prerequisites-{{ ansible_os_family | lower }}.yml
+  when: k3s_use_docker
+        and ((k3s_control_workers)
+             or (not k3s_control_workers and not k3s_control_node))
+
+- import_tasks: build/install-docker.yml
+  when: k3s_use_docker
+        and ((k3s_control_workers)
+           or (not k3s_control_workers and not k3s_control_node))
+        and ansible_distribution | replace(" ", "-") | lower not in ['amazon', 'suse', 'opensuse-leap']
+
+- include_tasks: build/install-docker-{{ ansible_distribution | replace(" ", "-") | lower }}.yml
+  when: ansible_distribution | replace(" ", "-") | lower in ['amazon', 'suse', 'opensuse-leap']
+
+- import_tasks: build/get-version.yml
+  when: k3s_release_version is not defined or not k3s_release_version
+
+- import_tasks: build/download-k3s.yml
+
+- import_tasks: build/install-k3s.yml
+
+- import_tasks: build/configure-k3s-cluster.yml
+  when: play_hosts | length > 1

tasks/state-restarted.yml

@@ -0,0 +1,4 @@
+---
+
+- import_tasks: operate/stop-k3s.yml
+- import_tasks: operate/start-k3s.yml

tasks/state-started.yml

@@ -0,0 +1,3 @@
+---
+
+- import_tasks: operate/start-k3s.yml

tasks/state-stopped.yml

@@ -0,0 +1,3 @@
+---
+
+- import_tasks: operate/stop-k3s.yml