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

---
- include: gen_kube_tokens.yml
  tags: tokens

- name: Copy kubectl bash completion
  copy:
    src: kubectl_bash_completion.sh
    dest: /etc/bash_completion.d/kubectl.sh

- name: Copy kube-apiserver binary
  command: rsync -piu "{{ local_release_dir }}/kubernetes/bin/kube-apiserver" "{{ bin_dir }}/kube-apiserver"
  register: kube_apiserver_copy
  changed_when: false

- name: Copy kubectl binary
  command: rsync -piu "{{ local_release_dir }}/kubernetes/bin/kubectl" "{{ bin_dir }}/kubectl"
  changed_when: false

- name: populate users for basic auth in API
  lineinfile:
    dest: "{{ kube_users_dir }}/known_users.csv"
    create: yes
    line: '{{ item.value.pass }},{{ item.key }},{{ item.value.role }}'
    backup: yes
  with_dict: "{{ kube_users }}"
  notify: restart kube-apiserver

# Sync masters
- name: synchronize auth directories for masters
  synchronize:
    src: "{{ item }}"
    dest: "{{ kube_config_dir }}"
    recursive: yes
    delete: yes
    rsync_opts: [ '--one-file-system']
    set_remote_user: false
  with_items:
    - "{{ kube_token_dir }}"
    - "{{ kube_cert_dir }}"
    - "{{ kube_users_dir }}"
  delegate_to: "{{ groups['kube-master'][0] }}"
  when: inventory_hostname != "{{ groups['kube-master'][0] }}"

- name: install | Write kube-apiserver systemd init file
  template:
    src: "kube-apiserver.service.j2"
    dest: "/etc/systemd/system/kube-apiserver.service"
    backup: yes
  when: init_system == "systemd"
  notify: restart kube-apiserver

- name: install | Write kube-apiserver initd script
  template:
    src: "deb-kube-apiserver.initd.j2"
    dest: "/etc/init.d/kube-apiserver"
    owner: root
    mode: 0755
    backup: yes
  when: init_system == "sysvinit" and ansible_os_family == "Debian"

- name: Write kube-apiserver config file
  template:
    src: "kube-apiserver.j2"
    dest: "{{ kube_config_dir }}/kube-apiserver.env"
    backup: yes
  notify: restart kube-apiserver

- name: Allow apiserver to bind on both secure and insecure ports
  shell: setcap cap_net_bind_service+ep {{ bin_dir }}/kube-apiserver
  changed_when: false

- meta: flush_handlers

- include: start.yml
  with_items: groups['kube-master']
  when: "{{ hostvars[item].inventory_hostname == inventory_hostname }}"

# Create kube-system namespace
- name: copy 'kube-system' namespace manifest
  copy: src=namespace.yml dest=/etc/kubernetes/kube-system-ns.yml
  run_once: yes
  when: inventory_hostname == groups['kube-master'][0]

- name: Check if kube-system exists
  command: "{{ bin_dir }}/kubectl get ns kube-system"
  register: 'kubesystem'
  changed_when: False
  ignore_errors: yes
  run_once: yes

- name: wait for the apiserver to be running
  wait_for:
    port: "{{kube_apiserver_insecure_port}}"
    timeout: 60

- name: Create 'kube-system' namespace
  command: "{{ bin_dir }}/kubectl create -f /etc/kubernetes/kube-system-ns.yml"
  changed_when: False
  when: kubesystem|failed and inventory_hostname == groups['kube-master'][0]

# Write manifests
- name: Write kube-controller-manager manifest
  template:
    src: manifests/kube-controller-manager.manifest.j2
    dest: "{{ kube_config_dir }}/kube-controller-manager.manifest"

- name: Write kube-scheduler manifest
  template:
    src: manifests/kube-scheduler.manifest.j2
    dest: "{{ kube_config_dir }}/kube-scheduler.manifest"

- name: Write podmaster manifest
  template:
    src: manifests/kube-podmaster.manifest.j2
    dest: "{{ kube_manifest_dir }}/kube-podmaster.manifest"

- name: restart kubelet
  service:
    name: kubelet
    state: restarted
  changed_when: false