ansible-init-cluster.yaml

- hosts: kube_server
  become: true
  remote_user: ubuntu

  vars_files:
    - ansible-vars.yml

  tasks:
  - name: set docker to use systemd cgroups driver
    copy:
      dest: "/etc/docker/daemon.json"
      content: |
        {
          "exec-opts": ["native.cgroupdriver=systemd"]
        }
  - name: restart docker
    service: 
      name: docker
      state: restarted
  
  - name: initialize kubernetes cluster
    command: "kubeadm init --apiserver-advetise-address=192.168.11.201 --pod-network-cidr {{ pod_cidr }}"
    args: 
      creates: /etc/kubernetes/admin.conf # skip this task is the file already exists
    register: kube_init

  - name: show kube init info
    debug:
      var: kube_init
  
  - name: create .kube directory in user home
    file: 
      path: "{{ home_dir }}/.kube"
      state: directory
      owner: 1000
      group: 1000

  - name: Configure .kube/config files in user home
    copy:
      src: /etc/kubernetes/admin.conf
      dest: "{{ home_dir }}/.kube/config"
      remote_src: yes
      owner: 1000
      group: 1000

  - name: restart kubelet for config changes to take place
    service:
      name: kubelet
      state: restarted

  - name: get calico networking
    get_url:
      url: https://projectcalico.docs.tigera.io/manifests/calico.yaml
      dest: "{{ home_dir }}/calico.yaml"

  - name: apply calico networking
    become: no
    command: kubectl apply -f "{{ home_dir }}/calico.yaml"

  - name: get dashboard
    get_url:
      url: https://raw.githubusercontent.com/kubernetes/dashboard/v2.5.0/aio/deploy/recommended.yaml
      dest: "{{ home_dir }}/dashboard.yaml"

  - name: apply dashboard
    become: no
    command: kubectl apply -f "{{ home_dir }}/dashboard.yaml"