start_drainer.yml

---
# Copyright 2018 PingCAP, 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,
# See the License for the specific language governing permissions and
# limitations under the License.

# The playbook of TiDB

- name: check config locally
  hosts: localhost
  any_errors_fatal: true
  tags:
    - always
  roles:
    - check_config_static

- name: gather all facts, and check dest
  hosts: all
  any_errors_fatal: true
  tags:
    - always
  roles:
    - check_config_dynamic


- hosts: drainer_servers
  tags:
    - drainer
  tasks:
    - name: start drainer by supervise
      shell: cd {{ deploy_dir }}/scripts && ./start_drainer.sh
      when:
        - enable_binlog|default(false)
        - process_supervision == 'supervise'

    - name: start drainer by systemd
      systemd: name=drainer-{{ drainer_port }}.service state=started enabled=no
      become: true
      when:
        - enable_binlog|default(false)
        - process_supervision == 'systemd'

    - name: wait until the drainer port is up
      wait_for:
        host: "{{ ansible_host }}"
        port: "{{ drainer_port }}"
        state: started
        msg: "the drainer port {{ drainer_port }} is not up"
      when: enable_binlog|default(false)