fix(ansible): only run certain tasks on k3s_primary_control_node

Signed-off-by: Devin Buhl <devin@buhl.casa>

ansible/playbooks/cluster-installation.yml

@@ -11,16 +11,16 @@
         seconds: 5
   tasks:
     - name: Check if cluster is installed
+      check_mode: false
       ansible.builtin.stat:
         path: /etc/rancher/k3s/config.yaml
       register: k3s_check_installed
-      check_mode: false
 
     - name: Ignore manifests templates and urls if the cluster is already installed
+      when: k3s_check_installed.stat.exists
       ansible.builtin.set_fact:
         k3s_server_manifests_templates: []
         k3s_server_manifests_urls: []
-      when: k3s_check_installed.stat.exists
 
     - name: Install Kubernetes
       ansible.builtin.include_role:
@@ -34,39 +34,30 @@
       become: false
       run_once: true
       check_mode: false
-      ansible.builtin.command: |-
-        git rev-parse --show-toplevel
+      ansible.builtin.command: git rev-parse --show-toplevel
       register: repository_path
 
-    - name: Copy kubeconfig project directory
-      run_once: true
+    - name: Copy kubeconfig to the project directory
+      when: k3s_primary_control_node
       ansible.builtin.fetch:
-        src: "/etc/rancher/k3s/k3s.yaml"
+        src: /etc/rancher/k3s/k3s.yaml
         dest: "{{ repository_path.stdout }}/kubeconfig"
         flat: true
-      when:
-        - k3s_control_node is defined
-        - k3s_control_node
 
-    - name: Update kubeconfig with the correct IPv4 address
+    - name: Update kubeconfig with the correct load balancer address
       delegate_to: localhost
       become: false
       run_once: true
       ansible.builtin.replace:
         path: "{{ repository_path.stdout }}/kubeconfig"
-        regexp: "https://127.0.0.1:6443"
+        regexp: https://127.0.0.1:6443
         replace: "https://{{ k3s_registration_address }}:6443"
 
-    # Unmanaging and removing the Cilium HelmChart is required for
-    # flux to take over managing the lifecycle of Cilium
-
-    - name: Post installation of custom manifests tasks
-      run_once: true
+    - name: Post installation of custom manifests
       when:
-        - k3s_server_manifests_templates | length > 0
-            or k3s_server_manifests_urls | length > 0
-        - k3s_control_node is defined
-        - k3s_control_node
+        - k3s_primary_control_node
+        - (k3s_server_manifests_templates | length > 0
+            or k3s_server_manifests_urls | length > 0)
       block:
         - name: Wait for custom manifests to rollout
           kubernetes.core.k8s_info:
@@ -98,6 +89,8 @@
               type: Complete
               status: true
             wait_timeout: 360
+        # Unmanage and remove the Cilium HelmChart in-order for
+        # flux to take over managing the lifecycle of Cilium
         - name: Patch the Cilium HelmChart to unmanage it
           kubernetes.core.k8s_json_patch:
             kubeconfig: /etc/rancher/k3s/k3s.yaml
@@ -122,7 +115,7 @@
             kind: HelmChart
             namespace: kube-system
           register: cilium_helmchart
-        - name: Remove finializers on the Cilium HelmChart
+        - name: Force delete the Cilium HelmChart
           when: cilium_helmchart.resources | count > 0
           kubernetes.core.k8s:
             kubeconfig: /etc/rancher/k3s/k3s.yaml
@@ -137,17 +130,18 @@
     # Cleaning up certain manifests from the /var/lib/rancher/k3s/server/manifests directory
     # is needed because k3s has an awesome "feature" to always re-deploy them when the k3s
     # service is restarted. Removing them does not uninstall the manifests from your cluster.
-
-    - name: Get a list of all custom manifest files
-      ansible.builtin.find:
-        paths: "{{ k3s_server_manifests_dir }}"
-        file_type: file
-        use_regex: true
-        patterns: ["^custom-.*"]
-      register: custom_manifest
-
-    - name: Delete all custom manifest files
-      ansible.builtin.file:
-        path: "{{ item.path }}"
-        state: absent
-      loop: "{{ custom_manifest.files }}"
+    - name: Delete custom manifests
+      when: k3s_primary_control_node
+      block:
+        - name: Get a list of all custom manifest files
+          ansible.builtin.find:
+            paths: "{{ k3s_server_manifests_dir }}"
+            file_type: file
+            use_regex: true
+            patterns: ["^custom-.*"]
+          register: custom_manifest
+        - name: Delete all custom manifest files
+          ansible.builtin.file:
+            path: "{{ item.path }}"
+            state: absent
+          loop: "{{ custom_manifest.files }}"