homelab/k8s/initialize.yml

---
- name: Stop loadbalancers on other masters
  hosts: masters
  become: yes
  become_method: sudo
  become_user: root
  tasks:
  - name: Stopping services
    service: 
      name: "{{ item }}"
      state: stopped
    with_items:
      - "haproxy"
      - "keepalived"
- name: Initialize the controlplane
  hosts: root_master
  become: yes
  become_method: sudo
  become_user: root
  tasks:
  - name: Pull images
    shell: kubeadm config images pull
  - name: Initialize the control plane
    shell: kubeadm init --pod-network-cidr={{ POD_NETWORK_CIDR }} --control-plane-endpoint "{{ APISERVER_VIP}}:{{ APISERVER_DEST_PORT }}" --upload-certs >> /etc/kubernetes/setup.out
    args: 
      chdir: $HOME
      creates: /etc/kubernetes/setup.out
  - name: Extract Control Plane token
    shell: cat /etc/kubernetes/setup.out | grep -e " kubeadm join" -e "--discovery-token" -e "--control-plane"
    register: K8S_CP_JOIN_COMMAND
  - name: Create dummy host to hold the token
    add_host:
      name: "K8S_CP_JOIN_DH"
      token: "{{ K8S_CP_JOIN_COMMAND.stdout }}"
  - name: Show command
    debug:
      msg: "{{ hostvars['K8S_CP_JOIN_DH']['token'] | regex_replace('[\\\\]+[n,t]', ' ')}}"
- name: Join k8s masters to the cluster
  hosts: masters
  become: yes
  become_method: sudo
  become_user: root
  tasks:
  - name: Execute image pull
    shell: kubeadm config images pull
  - name: Join the clusters
    shell: "{{ hostvars['K8S_CP_JOIN_DH']['token'] }} >> /etc/kubernetes/control-plane-join.log 2>&1"
    args:
      creates: /etc/kubernetes/control-plane-join.log
  # - name: Reboot machine to finaliza presetup
  #   reboot:
  #     reboot_timeout: 3600