c12s-kubespray/roles/kubernetes/master/tasks/main.yml

---
- include: pre-upgrade.yml
  tags: k8s-pre-upgrade

- name: Copy kubectl from hyperkube container
  command: "/usr/bin/docker run --rm -v {{ bin_dir }}:/systembindir {{ hyperkube_image_repo }}:{{ hyperkube_image_tag }} /bin/cp /hyperkube /systembindir/kubectl"
  register: kube_task_result
  until: kube_task_result.rc == 0
  retries: 4
  delay: "{{ retry_stagger | random + 3 }}"
  changed_when: false
  tags: [hyperkube, kubectl, upgrade]

- name: Gather kubectl bash completion
  command: "{{ bin_dir }}/kubectl completion bash"
  no_log: true
  register: kubectl_bash_completion
  when: ansible_os_family in ["Debian","RedHat"]
  tags: kubectl

- name: Write kubectl bash completion
  copy:
    content: "{{ kubectl_bash_completion.stdout }}"
    dest: /etc/bash_completion.d/kubectl.sh
    owner: root
    group: root
    mode: 0755
  when: ansible_os_family in ["Debian","RedHat"] and kubectl_bash_completion.changed
  tags: [kubectl, upgrade]

- name: Write kube-apiserver manifest
  template:
    src: manifests/kube-apiserver.manifest.j2
    dest: "{{ kube_manifest_dir }}/kube-apiserver.manifest"
  notify: Master | wait for the apiserver to be running
  tags: kube-apiserver

- meta: flush_handlers
# 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]
  tags: apps

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

- 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]
  tags: apps

# Write other manifests
- name: Write kube-controller-manager manifest
  template:
    src: manifests/kube-controller-manager.manifest.j2
    dest: "{{ kube_manifest_dir }}/kube-controller-manager.manifest"
  notify: Master | wait for kube-controller-manager
  tags: kube-controller-manager

- name: Write kube-scheduler manifest
  template:
    src: manifests/kube-scheduler.manifest.j2
    dest: "{{ kube_manifest_dir }}/kube-scheduler.manifest"
  notify: Master | wait for kube-scheduler
  tags: kube-scheduler