kubespray/scale.yml

---
- name: Check ansible version
  import_playbook: ansible_version.yml

- name: Add kube-master nodes to kube_control_plane
  # This is for old inventory which contains kube-master instead of kube_control_plane
  hosts: kube-master
  gather_facts: false
  tasks:
    - name: add nodes to kube_control_plane group
      group_by:
        key: 'kube_control_plane'

- hosts: bastion[0]
  gather_facts: False
  environment: "{{ proxy_disable_env }}"
  roles:
    - { role: kubespray-defaults }
    - { role: bastion-ssh-config, tags: ["localhost", "bastion"] }

- name: Bootstrap any new workers
  hosts: kube-node
  strategy: linear
  any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
  gather_facts: false
  environment: "{{ proxy_disable_env }}"
  roles:
    - { role: kubespray-defaults }
    - { role: bootstrap-os, tags: bootstrap-os }

- name: Gather facts
  tags: always
  import_playbook: facts.yml

- name: Generate the etcd certificates beforehand
  hosts: etcd
  gather_facts: False
  any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
  environment: "{{ proxy_disable_env }}"
  roles:
    - { role: kubespray-defaults }
    - { role: etcd, tags: etcd, etcd_cluster_setup: false }

- name: Download images to ansible host cache via first kube_control_plane node
  hosts: kube_control_plane[0]
  gather_facts: False
  any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
  environment: "{{ proxy_disable_env }}"
  roles:
    - { role: kubespray-defaults, when: "not skip_downloads and download_run_once and not download_localhost" }
    - { role: kubernetes/preinstall, tags: preinstall, when: "not skip_downloads and download_run_once and not download_localhost" }
    - { role: download, tags: download, when: "not skip_downloads and download_run_once and not download_localhost" }

- name: Target only workers to get kubelet installed and checking in on any new nodes(engine)
  hosts: kube-node
  gather_facts: False
  any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
  environment: "{{ proxy_disable_env }}"
  roles:
    - { role: kubespray-defaults }
    - { role: kubernetes/preinstall, tags: preinstall }
    - { role: container-engine, tags: "container-engine", when: deploy_container_engine|default(true) }
    - { role: download, tags: download, when: "not skip_downloads" }
    - { role: etcd, tags: etcd, etcd_cluster_setup: false, when: "not etcd_kubeadm_enabled|default(false)" }

- name: Target only workers to get kubelet installed and checking in on any new nodes(node)
  hosts: kube-node
  gather_facts: False
  any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
  environment: "{{ proxy_disable_env }}"
  roles:
    - { role: kubespray-defaults }
    - { role: kubernetes/node, tags: node }

- name: Upload control plane certs and retrieve encryption key
  hosts: kube_control_plane | first
  environment: "{{ proxy_disable_env }}"
  gather_facts: False
  tags: kubeadm
  roles:
    - { role: kubespray-defaults }
  tasks:
    - name: Upload control plane certificates
      command: >-
        {{ bin_dir }}/kubeadm init phase
        --config {{ kube_config_dir }}/kubeadm-config.yaml
        upload-certs
        --upload-certs
      environment: "{{ proxy_disable_env }}"
      register: kubeadm_upload_cert
      changed_when: false
    - name: set fact 'kubeadm_certificate_key' for later use
      set_fact:
        kubeadm_certificate_key: "{{ kubeadm_upload_cert.stdout_lines[-1] | trim }}"
      when: kubeadm_certificate_key is not defined

- name: Target only workers to get kubelet installed and checking in on any new nodes(network)
  hosts: kube-node
  gather_facts: False
  any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
  environment: "{{ proxy_disable_env }}"
  roles:
    - { role: kubespray-defaults }
    - { role: kubernetes/kubeadm, tags: kubeadm }
    - { role: network_plugin, tags: network }
    - { role: kubernetes/node-label, tags: node-label }