[#287] fix control node tasks logic to properly change server address on control node (#288)

Signed-off-by: Dmitriy Safronov <zimniy@cyberbrain.pw>

roles/k3s_server/tasks/main.yml

@@ -79,19 +79,6 @@
       ansible.builtin.pause:
         seconds: 10
 
-    - name: Change server to API endpoint instead of localhost
-      ansible.builtin.command: >-
-         /usr/local/bin/k3s kubectl config set-cluster default
-          --server=https://{{ api_endpoint }}:{{ api_port }}
-          --kubeconfig ~{{ ansible_user }}/.kube/config
-      changed_when: true
-
-    - name: Copy kubectl config to local machine
-      ansible.builtin.fetch:
-        src: /etc/rancher/k3s/k3s.yaml
-        dest: "{{ kubeconfig }}"
-        flat: true
-
     - name: Check whether kubectl is installed on control node
       ansible.builtin.command: 'kubectl'
       register: kubectl_installed
@@ -100,29 +87,46 @@
       become: false
       changed_when: false
 
-    - name: Setup kubeconfig k3s-ansible context
-      when: kubeconfig == "~/.kube/config.new" and kubectl_installed.rc == 0
-      ansible.builtin.replace:
-        path: "{{ kubeconfig }}"
-        regexp: 'name: default'
-        replace: 'name: k3s-ansible'
-      delegate_to: 127.0.0.1
-      become: false
+    - name: Apply K3S kubeconfig to control node
+      when: kubectl_installed.rc == 0
+      block:
+        - name: Copy kubeconfig to control node
+          ansible.builtin.fetch:
+            src: /etc/rancher/k3s/k3s.yaml
+            dest: "{{ kubeconfig }}"
+            flat: true
 
-    - name: Merge with any existing kube config
-      when: kubeconfig == "~/.kube/config.new" and kubectl_installed.rc == 0
-      ansible.builtin.shell: |
-        TFILE=$(mktemp)
-        KUBECONFIG=~/.kube/config.new kubectl rename-context default k3s-ansible
-        KUBECONFIG=~/.kube/config.new kubectl config set-context k3s-ansible --user=k3s-ansible --cluster=k3s-ansible
-        KUBECONFIG=~/.kube/config.new:~/.kube/config kubectl config view --flatten > ${TFILE}
-        mv ${TFILE} ~/.kube/config
-        rm ~/.kube/config.new
-      delegate_to: 127.0.0.1
-      become: false
-      register: mv_result
-      changed_when:
-        - mv_result.rc == 0
+        - name: Change server address in kubeconfig on control node
+          ansible.builtin.shell: |
+            KUBECONFIG={{ kubeconfig }} kubectl config set-cluster default --server=https://{{ api_endpoint }}:{{ api_port }}
+          delegate_to: 127.0.0.1
+          become: false
+          register: csa_result
+          changed_when:
+            - csa_result.rc == 0
+
+        - name: Setup kubeconfig k3s-ansible context on control node
+          when: kubeconfig != "~/.kube/config"
+          ansible.builtin.replace:
+            path: "{{ kubeconfig }}"
+            regexp: 'name: default'
+            replace: 'name: k3s-ansible'
+          delegate_to: 127.0.0.1
+          become: false
+
+        - name: Merge with any existing kubeconfig on control node
+          when: kubeconfig != "~/.kube/config"
+          ansible.builtin.shell: |
+            TFILE=$(mktemp)
+            KUBECONFIG={{ kubeconfig }} kubectl config set-context k3s-ansible --user=k3s-ansible --cluster=k3s-ansible
+            KUBECONFIG={{ kubeconfig }}:~/.kube/config kubectl config view --flatten > ${TFILE}
+            mv ${TFILE} ~/.kube/config
+            rm {{ kubeconfig }}
+          delegate_to: 127.0.0.1
+          become: false
+          register: mv_result
+          changed_when:
+            - mv_result.rc == 0
 
 - name: Start other server if any and verify status
   when: