Make agent and server groups configurable (#331)

* Make agent and server groups configurable

Signed-off-by: Meagan Harris <thewitch@siliconsorceress.com>

* Fix typo in upgrade role

Co-authored-by: Derek Nola <derek.nola@suse.com>
Signed-off-by: Meagan Harris <47128741+simagick@users.noreply.github.com>

---------

Signed-off-by: Meagan Harris <thewitch@siliconsorceress.com>
Signed-off-by: Meagan Harris <47128741+simagick@users.noreply.github.com>
Co-authored-by: Derek Nola <derek.nola@suse.com>

roles/k3s_server/defaults/main.yml

@@ -5,3 +5,5 @@ api_port: 6443  # noqa var-naming[no-role-prefix]
 kubeconfig: ~/.kube/config.new  # noqa var-naming[no-role-prefix]
 user_kubectl: true  # noqa var-naming[no-role-prefix]
 cluster_context: k3s-ansible  # noqa var-naming[no-role-prefix]
+server_group: server  # noqa var-naming[no-role-prefix]
+agent_group: agent  # noqa var-naming[no-role-prefix]

roles/k3s_server/tasks/main.yml

@@ -55,10 +55,10 @@
         mode: "0644"
 
 - name: Init first server node
-  when: inventory_hostname == groups['server'][0]
+  when: inventory_hostname == groups[server_group][0]
   block:
     - name: Copy K3s service file [Single]
-      when: groups['server'] | length == 1
+      when: groups[server_group] | length == 1
       ansible.builtin.template:
         src: "k3s-single.service.j2"
         dest: "{{ systemd_dir }}/k3s.service"
@@ -67,7 +67,7 @@
         mode: "0644"
 
     - name: Copy K3s service file [HA]
-      when: groups['server'] | length > 1
+      when: groups[server_group] | length > 1
       ansible.builtin.template:
         src: "k3s-cluster-init.service.j2"
         dest: "{{ systemd_dir }}/k3s.service"
@@ -90,7 +90,7 @@
         enabled: true
 
     - name: Pause to allow first server startup
-      when: (groups['server'] | length) > 1
+      when: (groups[server_group] | length) > 1
       ansible.builtin.pause:
         seconds: 10
 
@@ -144,11 +144,11 @@
 
 - name: Start other server if any and verify status
   when:
-    - (groups['server'] | length) > 1
-    - inventory_hostname != groups['server'][0]
+    - (groups[server_group] | length) > 1
+    - inventory_hostname != groups[server_group][0]
   block:
     - name: Copy K3s service file [HA]
-      when: groups['server'] | length > 1
+      when: groups[server_group] | length > 1
       ansible.builtin.template:
         src: "k3s-ha.service.j2"
         dest: "{{ systemd_dir }}/k3s.service"
@@ -164,12 +164,12 @@
         enabled: true
 
     - name: Verify that all server nodes joined
-      when: (groups['server'] | length) > 1
+      when: (groups[server_group] | length) > 1
       ansible.builtin.command:
         cmd: >
           k3s kubectl get nodes -l "node-role.kubernetes.io/control-plane=true" -o=jsonpath="{.items[*].metadata.name}"
       register: nodes
-      until: nodes.rc == 0 and (nodes.stdout.split() | length) == (groups['server'] | length)
+      until: nodes.rc == 0 and (nodes.stdout.split() | length) == (groups[server_group] | length)
       retries: 20
       delay: 10
       changed_when: false

roles/k3s_upgrade/defaults/main.yml

@@ -1,2 +1,4 @@
 ---
 systemd_dir: /etc/systemd/system  # noqa var-naming[no-role-prefix]
+server_group: server  # noqa var-naming[no-role-prefix]
+agent_group: agent  # noqa var-naming[no-role-prefix]

roles/k3s_upgrade/tasks/main.yml

@@ -54,14 +54,14 @@
       loop: "{{ k3s_service_files.files }}"
 
     - name: Restart K3s service [server]
-      when: "'server' in group_names"
+      when: "server_group in group_names"
       ansible.builtin.systemd:
         state: restarted
         daemon_reload: true
         name: k3s
 
     - name: Restart K3s service [agent]
-      when: "'agent' in group_names"
+      when: "agent_group in group_names"
       ansible.builtin.systemd:
         state: restarted
         daemon_reload: true