Service Provision
Create or update service on cluster
剧本概览
创建业务数据库:可以在现有集群中创建新的数据库或修改现有数据库:pgsql-service.yml
日常管理
# 在 pg-test 集群创建所有服务
./pgsql-service.yml -l pg-test
剧本说明
#!/usr/bin/env ansible-playbook
---
#==============================================================#
# File : pgsql-service.yml
# Ctime : 2021-03-12
# Mtime : 2021-03-12
# Desc : reload service for postgres clusters
# Path : pgsql-service.yml
# Copyright (C) 2018-2021 Ruohang Feng
#==============================================================#
# PLEASE USE COMPLETE INVENTORY (at least contains a complete cluster definition!)
#------------------------------------------------------------------------------
# haproxy reload
# will not reload if haproxy_reload=false
#------------------------------------------------------------------------------
- name: Reload haproxy
become: yes
hosts: all
gather_facts: no
tags: haproxy
tasks:
- include_tasks: roles/service/tasks/haproxy_config.yml
when: haproxy_enabled
- include_tasks: roles/service/tasks/haproxy_reload.yml
when: haproxy_enabled and haproxy_reload|bool
#------------------------------------------------------------------------------
# l2-vip reload
# will only config without reload if vip_reload=false
#------------------------------------------------------------------------------
- name: Reload l2 VIP
become: yes
hosts: all
gather_facts: no
tags: vip_l2
tasks:
- include_tasks: roles/service/tasks/vip_l2_config.yml
when: vip_mode == 'l2'
- include_tasks: roles/service/tasks/vip_l2_reload.yml
when: vip_mode == 'l2' and vip_reload|bool
#------------------------------------------------------------------------------
# l4-vip reload
# will not reload if vip_reload=false
#------------------------------------------------------------------------------
- name: Reload l4 VIP
become: yes
hosts: all
gather_facts: no
tags: vip_l4
tasks:
- include_tasks: roles/service/tasks/vip_l4_config.yml
- include_tasks: roles/service/tasks/vip_l4_reload.yml
...
使用样例
./pgsql-service.yml -l pg-test
执行结果
$ ./pgsql-service.yml -l pg-test
[WARNING]: Invalid characters were found in group names but not replaced, use -vvvv to see details
PLAY [Reload haproxy] *************************************************************************************************************************************************************
TASK [include_tasks] **************************************************************************************************************************************************************
included: /Volumes/Data/pigsty/roles/service/tasks/haproxy_config.yml for 10.10.10.11, 10.10.10.12, 10.10.10.13
TASK [Fetch postgres cluster memberships] *****************************************************************************************************************************************
ok: [10.10.10.11]
ok: [10.10.10.12]
ok: [10.10.10.13]
TASK [Templating /etc/haproxy/haproxy.cfg] ****************************************************************************************************************************************
ok: [10.10.10.11]
ok: [10.10.10.12]
ok: [10.10.10.13]
TASK [include_tasks] **************************************************************************************************************************************************************
included: /Volumes/Data/pigsty/roles/service/tasks/haproxy_reload.yml for 10.10.10.11, 10.10.10.12, 10.10.10.13
TASK [Reload haproxy load balancer service] ***************************************************************************************************************************************
changed: [10.10.10.13]
changed: [10.10.10.12]
changed: [10.10.10.11]
PLAY [Reload l2 VIP] **************************************************************************************************************************************************************
TASK [include_tasks] **************************************************************************************************************************************************************
included: /Volumes/Data/pigsty/roles/service/tasks/vip_l2_config.yml for 10.10.10.11, 10.10.10.12, 10.10.10.13
TASK [Templating /etc/default/vip-manager.yml] ************************************************************************************************************************************
ok: [10.10.10.11]
ok: [10.10.10.13]
ok: [10.10.10.12]
TASK [include_tasks] **************************************************************************************************************************************************************
included: /Volumes/Data/pigsty/roles/service/tasks/vip_l2_reload.yml for 10.10.10.11, 10.10.10.12, 10.10.10.13
TASK [Launch vip-manager] *********************************************************************************************************************************************************
changed: [10.10.10.11]
changed: [10.10.10.13]
changed: [10.10.10.12]
PLAY [Reload l4 VIP] **************************************************************************************************************************************************************
TASK [include_tasks] **************************************************************************************************************************************************************
skipping: [10.10.10.11]
skipping: [10.10.10.12]
skipping: [10.10.10.13]
TASK [include_tasks] **************************************************************************************************************************************************************
skipping: [10.10.10.11]
skipping: [10.10.10.12]
skipping: [10.10.10.13]
PLAY RECAP ************************************************************************************************************************************************************************
10.10.10.11 : ok=9 changed=2 unreachable=0 failed=0 skipped=2 rescued=0 ignored=0
10.10.10.12 : ok=9 changed=2 unreachable=0 failed=0 skipped=2 rescued=0 ignored=0
10.10.10.13 : ok=9 changed=2 unreachable=0 failed=0 skipped=2 rescued=0 ignored=0
任务详情
默认任务如下:
playbook: ./pgsql-service.yml
play #1 (all): Reload haproxy TAGS: [haproxy]
tasks:
include_tasks TAGS: [haproxy]
include_tasks TAGS: [haproxy]
play #2 (all): Reload l2 VIP TAGS: [vip_l2]
tasks:
include_tasks TAGS: [vip_l2]
include_tasks TAGS: [vip_l2]
play #3 (all): Reload l4 VIP TAGS: [vip_l4]
tasks:
include_tasks TAGS: [vip_l4]
include_tasks TAGS: [vip_l4]
Last modified 2021-03-28: update en docs (f994b54)