ansible/roles/rke/tasks/rke_config.yml

---
- name: "Ensure the .ssh directory exists"
  file:
    path: "{{ ansible_env.HOME }}/.ssh"
    mode: 0700
    state: directory

- name: Add kubernetes nodes host keys to known_hosts file
  known_hosts:
    name: "{{ hostvars[item].cluster_ip }}"
    key: "{{ hostvars[item].cluster_ip }} ssh-rsa {{ hostvars[item].ansible_ssh_host_key_rsa_public }}"
    hash_host: true
    state: present
  loop: "{{ groups['kubernetes'] }}"

- name: "Ensure {{ cluster_config_dir }} is present"
  file:
    path: "{{ cluster_config_dir }}"
    state: directory
    mode: 0755

- name: Generate cluster wide ssh key pair
  command: "ssh-keygen -q -b 4096 -t rsa -N '' -f {{ cluster_config_dir }}/cluster_key"
  args:
    creates: "{{ cluster_config_dir }}/cluster_key"

- name: Get ssh public key
  slurp:
    src: "{{ cluster_config_dir }}/cluster_key.pub"
  register: cluster_public_key_out

- name: Decode ssh public key
  set_fact:
    cluster_public_key: "{{ cluster_public_key_out.content | b64decode }}"

- name: Prepare rke cluster.yml
  template:
    src: cluster.yml.j2
    dest: "{{ cluster_config_dir }}/cluster.yml"

- name: Install rke cli tool
  copy:
    src: "{{ app_data_path }}/downloads/{{ rke_binary }}"
    dest: "{{ rke_bin_dir }}/rke"
    remote_src: true
    mode: 0755