kubespray/roles/kubernetes/client/tasks/main.yml

---
- name: Set external kube-apiserver endpoint
  set_fact:
    external_apiserver_address: >-
      {%- if loadbalancer_apiserver is defined and loadbalancer_apiserver.address is defined -%}
      {{ loadbalancer_apiserver.address }}
      {%- else -%}
      {{ kube_apiserver_access_address }}
      {%- endif -%}
    external_apiserver_port: >-
      {%- if loadbalancer_apiserver is defined and loadbalancer_apiserver.address is defined and loadbalancer_apiserver.port is defined -%}
      {{ loadbalancer_apiserver.port|default(kube_apiserver_port) }}
      {%- else -%}
      {{ kube_apiserver_port }}
      {%- endif -%}
  tags:
    - facts

- name: Create kube config dir for current/ansible become user
  file:
    path: "{{ ansible_env.HOME | default('/root') }}/.kube"
    mode: "0700"
    state: directory

- name: Copy admin kubeconfig to current/ansible become user home
  copy:
    src: "{{ kube_config_dir }}/admin.conf"
    dest: "{{ ansible_env.HOME | default('/root') }}/.kube/config"
    remote_src: yes
    mode: "0600"
    backup: yes

- name: Create kube artifacts dir
  file:
    path: "{{ artifacts_dir }}"
    mode: "0750"
    state: directory
  delegate_to: localhost
  become: no
  run_once: yes
  when: kubeconfig_localhost|default(false)

- name: Wait for k8s apiserver
  wait_for:
    host: "{{ kube_apiserver_access_address }}"
    port: "{{ kube_apiserver_port }}"
    timeout: 180

# NOTE(mattymo): Please forgive this workaround
- name: Generate admin kubeconfig with external api endpoint
  shell: >-
    {% if kubeadm_version is version('v1.14.0', '>=') %}
    mkdir -p {{ kube_config_dir }}/external_kubeconfig &&
    {% endif %}
    {{ bin_dir }}/kubeadm
    {% if kubeadm_version is version('v1.14.0', '>=') %}
    init phase
    {% elif kubeadm_version is version('v1.13.0', '>=') %}
    alpha
    {% else %}
    alpha phase
    {% endif %}
    {% if kubeadm_version is version('v1.14.0', '>=') %}
    kubeconfig admin
    --kubeconfig-dir {{ kube_config_dir }}/external_kubeconfig
    {% else %}
    kubeconfig user
    --client-name kubernetes-admin
    --org system:masters
    {% endif %}
    --cert-dir {{ kube_cert_dir }}
    --apiserver-advertise-address {{ external_apiserver_address }}
    --apiserver-bind-port {{ external_apiserver_port }}
    {% if kubeadm_version is version('v1.14.0', '>=') %}
    >/dev/null && cat {{ kube_config_dir }}/external_kubeconfig/admin.conf &&
    rm -rf {{ kube_config_dir }}/external_kubeconfig
    {% endif %}
  environment: "{{ proxy_env }}"
  run_once: yes
  register: admin_kubeconfig

- name: Write admin kubeconfig on ansible host
  copy:
    content: "{{ admin_kubeconfig.stdout }}"
    dest: "{{ artifacts_dir }}/admin.conf"
    mode: 0640
  delegate_to: localhost
  become: no
  run_once: yes
  when: kubeconfig_localhost|default(false)

- name: Copy kubectl binary to ansible host
  fetch:
    src: "{{ bin_dir }}/kubectl"
    dest: "{{ artifacts_dir }}/kubectl"
    flat: yes
    validate_checksum: no
  become: no
  run_once: yes
  when: kubectl_localhost|default(false)

- name: create helper script kubectl.sh on ansible host
  copy:
    content: |
      #!/bin/bash
      ./kubectl --kubeconfig=${BASH_SOURCE%/*}/admin.conf $@
    dest: "{{ artifacts_dir }}/kubectl.sh"
    mode: 0755
  become: no
  run_once: yes
  delegate_to: localhost
  when: kubectl_localhost|default(false) and kubeconfig_localhost|default(false)