configs

ansible.cfg

@@ -0,0 +1,2 @@
+[default]
+inventory = inventory

inventory

@@ -0,0 +1,13 @@
+kubecontrol ansible_ssh_private_key_file=~/.ssh/kubeworker ansible_user=kubecontrol
+
+kubew1 ansible_ssh_private_key_file=~/.ssh/kubew1 ansible_user=kubew1
+
+kubew2 ansible_ssh_private_key_file=~/.ssh/kubew2 ansible_user=kubew2
+
+[control]
+kubecontrol
+
+[workers]
+kubew1
+kubew2
+

playbook.yml

@@ -0,0 +1,84 @@
+- hosts: all
+  become: yes
+
+  tasks:
+    - name: update package cache
+      apt:
+        update_cache: yes
+
+    - name: install required packages
+      apt:
+        name:
+          - apt-transport-https
+          - ca-certificates
+          - curl
+          - gnupg
+          - containerd
+        state: present
+
+    - name: create br_filter
+      command: modprobe br_filter
+
+    - name: create a containerd directory
+      file:
+        path: /etc/containerd
+        state: directory
+
+    - name: generate containerd default configuration
+      command: containerd config default
+      register: containerd_output  # Capture the output of the command
+
+    - name: save configuration to /home/kubew2/config.toml
+      copy:
+        content: "{{ containerd_output.stdout }}"
+        dest: $HOME/config.toml
+
+    - name: move it (can't directly create on /etc/containerd for some reason)
+      command: mv $HOME/config.toml /etc/containerd/config.toml
+
+
+    - name: modify containerd.toml
+      lineinfile:
+        path: /etc/containerd/config.toml
+        regexp: '^SystemdCgroup ='
+        line: 'SystemdCgroup = true'
+  
+    - name: turn off swap
+      command: swapoff -a
+
+    - name: uncomment net.ipv4.ip_forward in sysctl.conf
+      lineinfile:
+        path: /etc/sysctl.conf
+        regexp: '^#?net.ipv4.ip_forward='
+        line: 'net.ipv4.ip_forward=1'
+        state: present
+
+    - name: check if GPG key file exists
+      stat:
+        path: /etc/apt/keyrings/kubernetes-apt-keyring.gpg
+      register: gpg_key_file
+
+
+    - name: download Kubernetes GPG key
+      shell: curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.28/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg
+      when: not gpg_key_file.stat.exists
+
+
+    - name: add Kubernetes repository
+      shell: echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.28/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list
+
+    - name: update package cache after adding repository
+      apt:
+        update_cache: yes
+
+    - name: install Kubernetes components
+      apt:
+        name:
+          - kubelet
+          - kubeadm
+          - kubectl
+        state: present
+
+    - name: hold Kubernetes packages to prevent automatic updates
+      command: sudo apt-mark hold kubelet kubeadm kubectl
+