add install kubernetes playbook (to be tested)

playbooks/install-kubernetes.yml

@@ -0,0 +1,132 @@
+- name: Install Kubernetes
+  hosts: kubernetes
+  become: true
+
+  tasks:
+    - name: Disable swap
+      command: swapoff -a
+
+    - name: Comment out swap entries in /etc/fstab
+      replace:
+        path: /etc/fstab
+        regexp: '^([^#].*\sswap\s.*)$'
+        replace: '#\1'
+
+    - name: Remove conflicting packages
+      apt:
+        name:
+          - docker.io
+          - docker-compose
+          - docker-compose-v2
+          - docker-doc
+          - podman-docker
+          - containerd
+          - runc
+        state: absent
+        purge: true
+        autoremove: true
+
+    - name: Update and upgrade apt packages
+      apt:
+        update_cache: true
+        upgrade: dist
+
+    - name: Install prerequisites
+      apt:
+        name:
+          - ca-certificates
+          - curl
+          - apt-transport-https
+          - gpg
+        state: present
+
+    - name: Create /etc/apt/keyrings directory
+      file:
+        path: /etc/apt/keyrings
+        state: directory
+        mode: '0755'
+
+    - name: Download Docker GPG key
+      get_url:
+        url: https://download.docker.com/linux/ubuntu/gpg
+        dest: /etc/apt/keyrings/docker.asc
+        mode: '0644'
+
+    - name: Get Ubuntu codename
+      shell: ". /etc/os-release && echo \"${UBUNTU_CODENAME:-$VERSION_CODENAME}\""
+      register: ubuntu_codename
+      changed_when: false
+
+    - name: Add Docker apt repository
+      copy:
+        dest: /etc/apt/sources.list.d/docker.sources
+        content: |
+          Types: deb
+          URIs: https://download.docker.com/linux/ubuntu
+          Suites: {{ ubuntu_codename.stdout }}
+          Components: stable
+          Signed-By: /etc/apt/keyrings/docker.asc
+
+    - name: Download Kubernetes GPG key
+      shell: >
+        curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.35/deb/Release.key |
+        gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg
+      args:
+        creates: /etc/apt/keyrings/kubernetes-apt-keyring.gpg
+
+    - name: Add Kubernetes apt repository
+      copy:
+        dest: /etc/apt/sources.list.d/kubernetes.list
+        content: "deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.35/deb/ /\n"
+
+    - name: Update apt cache
+      apt:
+        update_cache: true
+
+    - name: Install Docker and Kubernetes packages
+      apt:
+        name:
+          - docker-ce
+          - docker-ce-cli
+          - containerd.io
+          - docker-buildx-plugin
+          - docker-compose-plugin
+          - kubelet
+          - kubeadm
+          - kubectl
+        state: present
+
+    - name: Hold kubelet, kubeadm, kubectl at current version
+      dpkg_selections:
+        name: "{{ item }}"
+        selection: hold
+      loop:
+        - kubelet
+        - kubeadm
+        - kubectl
+
+    - name: Generate default containerd config
+      shell: containerd config default > /etc/containerd/config.toml
+      args:
+        creates: /etc/containerd/config.toml
+
+    - name: Restart containerd
+      systemd:
+        name: containerd
+        state: restarted
+
+    - name: Enable and start Docker
+      systemd:
+        name: docker
+        enabled: true
+        state: started
+
+    - name: Enable and start kubelet
+      systemd:
+        name: kubelet
+        enabled: true
+        state: started
+
+    - name: Run hello-world Docker test
+      command: docker run hello-world
+      changed_when: false