refactor(k3s): enhance cluster setup and enable ArgoCD apps

Signed-off-by: Tuan-Dat Tran <tuan-dat.tran@tudattr.dev>

roles/k3s_server/tasks/pull_token.yml

@@ -1,6 +1,5 @@
 - name: Get K3s token from the first server
-  when:
-    - ansible_default_ipv4.address == k3s_primary_server_ip
+  when: ansible_default_ipv4.address == k3s_primary_server_ip
   ansible.builtin.slurp:
     src: /var/lib/rancher/k3s/server/node-token
   register: k3s_token
@@ -9,6 +8,8 @@
 - name: Set fact on k3s_primary_server_ip
   ansible.builtin.set_fact:
     k3s_token: "{{ k3s_token['content'] | b64decode | trim }}"
+  when:
+    - ansible_default_ipv4.address == k3s_primary_server_ip
 
 - name: Write K3s token to local file for encryption
   ansible.builtin.copy:
@@ -22,3 +23,4 @@
 - name: Encrypt k3s token
   ansible.builtin.shell: cd ../; ansible-vault encrypt "{{ playbook_dir }}/{{k3s_server_token_vault_file}}"
   delegate_to: localhost
+  run_once: true