# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

---
- name: generate the kubeadm join command for nodes
  vars:
    kubeadm_aio_action: generate-join-cmd
    kubeadm_cluster_join_ttl: 30m
    kube_worker: null
  block:
    - name: "deploying kubeadm {{ kubeadm_aio_action }} container"
      become: true
      become_user: root
      docker_container:
        name: "kubeadm-{{ kube_worker }}-{{ kubeadm_aio_action }}"
        image: "{{ images.kubernetes.kubeadm_aio }}"
        state: started
        detach: false
        recreate: yes
        network_mode: host
        volumes:
          - /etc/kubernetes:/etc/kubernetes:ro
        env:
          ACTION=generate-join-cmd
          TTL="{{ kubeadm_cluster_join_ttl }}"
      register: kubeadm_generate_join_command
    - name: "getting logs for {{ kubeadm_aio_action }} action"
      command: "docker logs kubeadm-{{ kube_worker }}-{{ kubeadm_aio_action }}"
      become: true
      become_user: root
      register: kubeadm_aio_action_logs
    - name: storing cluster join command
      set_fact: kubeadm_cluster_join_command="{{ kubeadm_aio_action_logs.stdout | regex_search('kubeadm join.*') }}"
  rescue:
    - name: "dumping logs for {{ kubeadm_aio_action }} action"
      debug:
        var: kubeadm_aio_action_logs.stdout_lines
    - name: "exiting if {{ kubeadm_aio_action }} action failed"
      command: exit 1
  always:
    - name: "removing container for {{ kubeadm_aio_action }} action"
      become: true
      become_user: root
      docker_container:
        name: "kubeadm-{{ kube_worker }}-{{ kubeadm_aio_action }}"
        state: absent
...