okd/playbooks/openshift-etcd/private/scaleup.yml

---
- name: Configure etcd
  hosts: oo_etcd_to_config
  any_errors_fatal: true
  tasks:
  - fail:
      msg: >
        etcd stand-alone hosts on atomic is no longer supported. Please
        co-locate your etcd hosts with masters.
    when:
    - openshift_is_atomic | bool
    - not inventory_hostname in groups['oo_masters']

  - import_role:
      name: etcd
      tasks_from: set_facts.yml

- name: Configure etcd
  hosts: oo_new_etcd_to_config
  serial: 1
  any_errors_fatal: true
  pre_tasks:
  - import_role:
      name: etcd
      tasks_from: add_new_member.yml
  - import_role:
      name: etcd
      tasks_from: server_certificates.yml
    vars:
      etcd_peers: "{{ groups.oo_new_etcd_to_config | default([], true) }}"
      etcd_certificates_etcd_hosts: "{{ groups.oo_new_etcd_to_config | default([], true) }}"
  tasks:
  - import_role:
      name: os_firewall
    when: etcd_add_check.rc == 0

  - import_role:
      name: etcd
    when: etcd_add_check.rc == 0
    vars:
      etcd_peers: "{{ groups.oo_etcd_to_config | union(groups.oo_new_etcd_to_config)| default([], true) }}"
      etcd_certificates_etcd_hosts: "{{ groups.oo_etcd_to_config | default([], true) }}"
      etcd_initial_cluster_state: "existing"
      etcd_initial_cluster: "{{ etcd_add_check.stdout_lines[3] | regex_replace('ETCD_INITIAL_CLUSTER=','') | regex_replace('\"','') }}"
      etcd_ca_setup: False

  # etcd_hostname fact is set in add_new_member.yml called above.
  - name: Verify cluster is stable
    command: >
      {{ r_etcd_common_etcdctl_command }}
                       --cert-file {{ etcd_peer_cert_file }}
                       --key-file {{ etcd_peer_key_file }}
                       --ca-file {{ etcd_peer_ca_file }}
                       -C {{ etcd_peer_url_scheme }}://{{ hostvars[etcd_ca_host].etcd_hostname }}:{{ etcd_client_port }}
                       cluster-health
    register: scaleup_health
    retries: 3
    delay: 30
    until: scaleup_health.rc == 0

- name: Update master etcd client urls
  hosts: oo_masters_to_config
  serial: 1
  pre_tasks:
  - set_fact:
      openshift_master_etcd_hosts: "{{ hostvars
                                       | lib_utils_oo_select_keys(groups['oo_etcd_to_config'] | union(groups['oo_new_etcd_to_config'] | default([]) ))
                                       | lib_utils_oo_collect('openshift.common.hostname')
                                       | default(none, true) }}"
      openshift_master_etcd_port: "{{ etcd_client_port | default('2379') }}"
      openshift_no_proxy_etcd_host_ips: "{{ hostvars | lib_utils_oo_select_keys(groups['oo_etcd_to_config'] | default([]))
                                                  | lib_utils_oo_collect('openshift.common.ip') | default([]) | join(',')
                                                  }}"
  # This fact requires the facts set above, so needs to happen in it's own task.
  - set_fact:
      # lib_utils_oo_etcd_host_urls is a custom filter plugin in roles/lib_utils/filter_plugins/oo_filters.py
      openshift_master_etcd_urls: "{{ openshift_master_etcd_hosts | lib_utils_oo_etcd_host_urls(l_use_ssl, openshift_master_etcd_port) }}"
    vars:
      l_use_ssl: "{{ openshift_master_etcd_use_ssl | default(True) | bool}}"

  post_tasks:
  - import_role:
      name: openshift_control_plane
      tasks_from: update_etcd_client_urls.yml