rolling_update_curve.yml

---
#
#  Copyright (c) 2020 NetEase Inc.
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.
#
# The rolling update playbook of Curve

- name: check_ansible_version
  tags:
    - always
  import_playbook: check_ansible_version.yml

############################## rolling update etcd ##############################
- name: prepare etcd
  hosts: etcd
  any_errors_fatal: true
  gather_facts: no
  become: "{{ sudo_or_not | bool }}"
  tags:
    - etcd
    - never
  roles:
    - { role: install_package, package_name: etcd, tags: install_etcd }
    - { role: generate_config, template_name: etcd.conf.yml, conf_path: "{{ etcd_config_path }}", tags: update_etcd_config }
    - { role: install_package, package_name: etcd-daemon, tags: install_etcd_daemon }

- name: set etcd leader and follower list
  hosts: etcd
  gather_facts: no
  serial: 1
  tags:
    - etcd
    - never
  roles:
    - { role: set_leader_and_follower_list, service_name: etcd }

- name: update follower and leader server in sequence
  hosts: etcd_servers_followers, etcd_servers_leader
  any_errors_fatal: true
  gather_facts: no
  become: "{{ sudo_or_not | bool }}"
  serial: 1
  tags:
    - etcd
    - never
    - restart_etcd
  pre_tasks:
    - pause:
        prompt: "Confirm update etcd in {{ inventory_hostname }}. ENTER to continue or 'CTRL-C A' to quit"
      when: need_confirm | bool
  roles:
    - { role: restart_service, service_name: etcd, command_need_sudo: "{{ etcd_need_sudo | bool }}"}

############################## rolling update mds ##############################
- name: prepare mds
  hosts: mds
  any_errors_fatal: true
  gather_facts: no
  become: "{{ sudo_or_not | bool }}"
  tags:
    - prepare
    - mds
  roles:
    - { role: install_package, package_name: curve-mds, package_version: "{{ mds_package_version }}",
            tags: ["install_package", "install_mds_package"] }
    - { role: install_package, package_name: curve-tools, package_version: "{{ tool_package_version }}",
            tags: ["install_package", "install_tool_package"] }
    - { role: generate_config, template_name: mds.conf, conf_path: "{{ mds_config_path }}",
            tags: ["generate_config", "generage_mds_conf"] }
    - { role: generate_config, template_name: tools.conf, conf_path: "{{ curve_ops_tool_config }}",
            tags: ["generate_config", "generage_tools_conf"] }
    - { role: generate_config, template_name: topo.json, conf_path: "{{ topo_file_path }}",
            tags: ["generate_config", "generage_topo_json"] }

# 获取leader节点和follower节点
- name: set mds leader and follower list
  hosts: mds
  gather_facts: no
  serial: 1
  tags:
    - restart
    - mds
    - restart_mds
  roles:
    - { role: set_leader_and_follower_list, service_name: mds }

# 按顺序先升级follower节点，再升级leader节点
- name: update follower and leader server in sequence
  hosts: mds_servers_followers, mds_servers_leader
  any_errors_fatal: true
  gather_facts: no
  become: "{{ sudo_or_not | bool }}"
  serial: 1
  tags:
    - restart_mds
    - mds
    - restart
  pre_tasks:
    - pause:
        prompt: "Confirm restart mds in {{ inventory_hostname }}. ENTER to continue or CTRL-C A to quit"
      when: need_confirm | bool
  # 重启mds
  roles:
    - { role: restart_service, service_name: mds, expected_curve_version: "{{ mds_package_version }}",
        command_need_sudo: "{{ mds_need_sudo | bool }}"}


############################## rolling update chunkserver ##############################
# 1. 更新各节点上的配置
- name: prepare chunkserver
  hosts: chunkservers
  any_errors_fatal: true
  gather_facts: no
  become: "{{ sudo_or_not | bool }}"
  tags:
    - prepare
    - chunkserver
  roles:
    - { role: install_package, package_name: curve-chunkserver, package_version: "{{ cs_package_version }}",
            tags: ["install_package", "install_chunkserver_package"] }
    - { role: generate_config, template_name: chunkserver.conf, conf_path: "{{ chunkserver_conf_path }}",
                tags: ["generate_config", "generage_chunkserver_conf"] }
    - { role: generate_config, template_name: client.conf, conf_path: "{{ chunkserver_client_config_path }}",
                tags: ["generate_config", "generage_chunkserver_client_conf"] }
    - { role: generate_config, template_name: s3.conf, conf_path: "{{ chunkserver_s3_config_path }}",
                tags: ["generate_config", "generage_cs_s3_conf"] }

# 逐个重启chunkserver，每重启完一个需要等待copyset健康
# 继续操作下一个的的时候还需要一个命令行交互确认
- name: restart chunkserver and wait healthy
  hosts: chunkservers
  any_errors_fatal: true
  gather_facts: no
  become: "{{ sudo_or_not | bool }}"
  serial: "{{ groups.zone1 | length }}"
  tags:
    - restart
    - chunkserver
    - restart_chunkserver
  pre_tasks:
    - pause:
        prompt: "Confirm restart chunkserver in {{ play_hosts | join(',') }}. ENTER to continue or CTRL-C A to quit"
      when: need_confirm | bool
  roles:
    - { role: restart_service, service_name: chunkserver, expected_curve_version: "{{ cs_package_version }}",
        command_need_sudo: "{{ chunkserver_need_sudo | bool }}"}
  tasks:
    - include_tasks: "common_tasks/wait_copysets_status_healthy.yml"

############################## rolling update snapshotcloneserver ##############################

- name: prepare snapshotcloneserver
  hosts: snapshotclone
  any_errors_fatal: true
  gather_facts: no
  become: "{{ sudo_or_not | bool }}"
  tags:
    - prepare
    - snapshotclone
  roles:
    - { role: install_package, package_name: curve-snapshotcloneserver, package_version: "{{ snapshot_package_version }}",
            tags: ["install_package", "install_snap_package"] }
    - { role: generate_config, template_name: snapshot_clone_server.conf, conf_path: "{{ snapshot_config_path }}",
            tags: ["generate_config", "generate_snap_conf"] }
    - { role: generate_config, template_name: client.conf, conf_path: "{{ snap_client_config_path }}",
            tags: ["generate_config", "generate_snap_client_conf"] }
    - { role: generate_config, template_name: s3.conf, conf_path: "{{ snap_s3_config_path }}",
                tags: ["generate_config", "generage_snap_s3_conf"] }

- name: set leader and follower list
  hosts: snapshotclone
  gather_facts: no
  serial: 1
  tags:
    - restart
    - snapshotclone
    - restart_snapshotclone
  roles:
    - { role: set_leader_and_follower_list, service_name: snapshot }

- name: update follower and leader server in sequence
  hosts: snapshot_servers_followers, snapshot_servers_leader
  any_errors_fatal: true
  gather_facts: no
  become: "{{ sudo_or_not | bool }}"
  serial: 1
  tags:
    - restart
    - snapshotclone
    - restart_snapshotclone
  pre_tasks:
    - pause:
        prompt: "Confirm restart snapshotclone in {{ inventory_hostname }}. ENTER to continue or CTRL-C A to quit"
      when: need_confirm | bool
  # 重启snapshot clone
  roles:
    - { role: restart_service, service_name: snapshotclone, expected_curve_version: "{{ snapshot_package_version }}",
        command_need_sudo: "{{ snapshot_need_sudo | bool }}" }