first_commit

ansible/k8s-install-deps.yaml

@@ -0,0 +1,113 @@
+- name: Install Kubernetes packages
+  hosts: all
+  become: true
+
+  tasks:
+    - name: Ensure apt cache is updated
+      apt:
+        update_cache: yes
+        cache_valid_time: 3600
+
+    - name: Install required packages
+      apt:
+        name:
+          - apt-transport-https
+          - ca-certificates
+          - curl
+          - gpg
+          - containerd
+        state: present
+
+## Questo non è nella documentazione! bisogna generare il file di configurazione di containerd
+## ed scriverlo nella directory apposita, altrimenti usa un suo default che non va bene
+
+    - name: Ensure containerd config directory exists
+      file:
+        path: /etc/containerd
+        state: directory
+        mode: '0755'
+
+    - name: Generate default containerd config if missing
+      command: containerd config default
+      register: containerd_config
+      when: not lookup('file', '/etc/containerd/config.toml', errors='ignore')
+      changed_when: false
+
+    - name: Write default containerd config
+      copy:
+        content: "{{ containerd_config.stdout }}"
+        dest: /etc/containerd/config.toml
+      when: containerd_config is defined
+
+    - name: Set SystemdCgroup = true in containerd config
+      replace:
+        path: /etc/containerd/config.toml
+        regexp: '^(\s*SystemdCgroup\s*=\s*)false'
+        replace: '\1true'
+
+    - name: Restart containerd
+      systemd:
+        name: containerd
+        state: restarted
+        enabled: yes
+
+## Importantissimo per la gestione interna della network
+
+    - name: Enable IPv4 forwarding at runtime
+      sysctl:
+        name: net.ipv4.ip_forward
+        value: '1'
+        state: present
+        reload: yes
+        sysctl_set: yes
+
+## Installa kubectl, kubeadm e kubelet dal repo ufficiale kubernetes
+
+    - name: Create /etc/apt/keyrings directory
+      file:
+        path: /etc/apt/keyrings
+        state: directory
+        mode: '0755'
+
+    - name: Download and save the Kubernetes APT key
+      ansible.builtin.shell: |
+        curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.33/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:/v1.33/deb/ /
+
+    - name: Update apt cache after adding Kubernetes repo
+      apt:
+        update_cache: yes
+
+    - name: Install Kubernetes components
+      apt:
+        name:
+          - kubelet
+          - kubeadm
+          - kubectl
+        state: present
+
+## Ferma i pacchetti ad una specifica versione
+
+    - name: Hold Kubernetes packages
+      ansible.builtin.shell: apt-mark hold kubelet kubeadm kubectl
+
+    - name: Enable and start containerd
+      systemd:
+        name: containerd
+        enabled: true
+        state: started
+
+## Abilita il servizio di kubelet
+
+    - name: Enable and start kubelet
+      systemd:
+        name: kubelet
+        enabled: true
+        state: started