provision.yml

# create galera linodes
- name: create galera linodes
  hosts: localhost
  vars_files:
      - group_vars/galera/vars
      - group_vars/galera/secret_vars
  
  vars:
    count: 3

  tasks:
  - name: creating galera linodes
    linode.cloud.instance:
      label: '{{ galera_prefix }}{{ item }}'
      api_token: '{{ token }}'
      type: '{{ type }}'
      region: '{{ region }}'
      image: '{{ image }}'
      root_pass: '{{ root_pass }}'
      authorized_keys: '{{ ssh_keys }}'
      private_ip: true
      group: '{{ group }}'
      tags: '{{ linode_tags }}'
      state: present
    register: linode
    with_sequence: count='{{count}}'

  - name: Get info about an instance by label
    linode.cloud.instance_info:
      api_token: '{{ token }}'
      label: '{{ galera_prefix }}{{ item }}'
    register: info
    with_sequence: count='{{count}}'

  - name: set facts
    set_fact:
      # hostnames
      galera1: '{{ info.results.0.instance.label }}'
      galera2: '{{ info.results.1.instance.label }}'
      galera3: '{{ info.results.2.instance.label }}'
      # public ips
      galera_ip1: '{{ info.results.0.instance.ipv4[0] }}'
      galera_ip2: '{{ info.results.1.instance.ipv4[0] }}'
      galera_ip3: '{{ info.results.2.instance.ipv4[0] }}'
      # private ips
      galera_priv1: '{{ info.results.0.instance.ipv4[1] }}'
      galera_priv2: '{{ info.results.1.instance.ipv4[1] }}'
      galera_priv3: '{{ info.results.2.instance.ipv4[1] }}'
  
  - name: test connectivity
    ping: '{{ item }}'
    with_items:
      - '{{ galera_ip1 }}'
      - '{{ galera_ip2 }}'
      - '{{ galera_ip3 }}'

  - name: update group_vars
    blockinfile:
      path: ./group_vars/galera/vars
      marker: "# {mark} INSTANCE VARS"
      block: |
        # hostnames 
        host1: {{ galera1 }}
        host2: {{ galera2 }}
        host3: {{ galera3 }}
        # private ips
        priv_ip1: {{ galera_priv1 }}
        priv_ip2: {{ galera_priv2 }}
        priv_ip3: {{ galera_priv3 }}

  - name: update inventory
    blockinfile:
      path: ./hosts
      marker: "# {mark} GALERA LINODES"
      block: |
        [galera_servers]
        {{ galera_ip1 }}
        {{ galera_ip2 }}
        {{ galera_ip3 }}
  
  - name: update in-memory inventory
    add_host:
      name: '{{ item }}'
      groups: galera_servers
    with_items:
      - '{{ galera_ip1 }}'
      - '{{ galera_ip2 }}'
      - '{{ galera_ip3 }}'

  - name: wait for port 22 to become open
    wait_for:
      port: 22
      host: '{{ item }}'
      search_regex: OpenSSH
      delay: 10
    connection: local
    with_items:
      - '{{ galera_ip1 }}'
      - '{{ galera_ip2 }}'
      - '{{ galera_ip3 }}'