refactor: yml -> yaml

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

roles/k3s_server/tasks/main.yaml

@@ -0,0 +1,29 @@
+---
+- name: Install dependencies for apt to use repositories over HTTPS
+  ansible.builtin.apt:
+    name: "{{ item }}"
+    state: present
+    update_cache: true
+  loop:
+    - qemu-guest-agent
+  become: true
+
+- name: See if k3s file exists
+  ansible.builtin.stat:
+    path: /usr/local/bin/k3s
+  register: k3s_status
+
+- name: Install primary k3s server
+  include_tasks: primary_installation.yaml
+  when: ansible_default_ipv4.address == k3s_primary_server_ip
+
+- name: Get token from primary k3s server
+  include_tasks: pull_token.yaml
+
+- name: Install seconary k3s servers
+  include_tasks: secondary_installation.yaml
+  when: ansible_default_ipv4.address != k3s_primary_server_ip
+
+- name: Set kubeconfig on localhost
+  include_tasks: create_kubeconfig.yaml
+  when: ansible_default_ipv4.address == k3s_primary_server_ip