https://github.com/tom-sato/ansible-pgpool2
Ansible playbook that set up a PostgreSQL cluster with Pgpool-II.
https://github.com/tom-sato/ansible-pgpool2
ansible pgpool-ii pgpool2 postgresql
Last synced: 2 months ago
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Ansible playbook that set up a PostgreSQL cluster with Pgpool-II.
- Host: GitHub
- URL: https://github.com/tom-sato/ansible-pgpool2
- Owner: tom-sato
- License: bsd-2-clause
- Created: 2024-07-27T10:26:16.000Z (10 months ago)
- Default Branch: main
- Last Pushed: 2025-03-07T13:45:22.000Z (3 months ago)
- Last Synced: 2025-03-07T14:33:56.513Z (3 months ago)
- Topics: ansible, pgpool-ii, pgpool2, postgresql
- Homepage:
- Size: 27.3 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
Ansible Playbook for Pgpool-II
==============================
Ansible playbook that set up a PostgreSQL cluster with Pgpool-II.
Requirements
------------
The playbook is tested with the following software versions:
* VirtualBox 7.1.x
* Vagrant 2.4.x
* Vagrant box
* [centos/7](https://app.vagrantup.com/centos/boxes/7)
* [rockylinux/8](https://app.vagrantup.com/rockylinux/boxes/8)
* [rockylinux/9](https://app.vagrantup.com/rockylinux/boxes/9)
* Ansible 2.10.x
* PostgreSQL 9.2.x - 17.x
* Pgpool-II 3.3.x - 4.6.x
Usage
-----
To run the playbook:
```ShellSession
$ git clone https://github.com/tom-sato/ansible-pgpool2.git
$ cd ansible-pgpool2
$ vagrant up --provision
(snip)
PLAY RECAP *********************************************************************
node-1 : ok=110 changed=48 unreachable=0 failed=0 skipped=26 rescued=0 ignored=0
node-2 : ok=75 changed=38 unreachable=0 failed=0 skipped=26 rescued=0 ignored=0
node-3 : ok=75 changed=37 unreachable=0 failed=0 skipped=26 rescued=0 ignored=0
$ vagrant ssh node-1
$ sudo su - postgres
$ pcp_node_info -h vip-1
node-1 5432 1 0.333333 waiting up primary primary 0 none none 2025-03-07 22:01:50
node-2 5432 1 0.333333 waiting up standby standby 0 streaming async 2025-03-07 22:03:54
node-3 5432 1 0.333333 waiting up standby standby 0 streaming async 2025-03-07 22:03:03
$ pcp_watchdog_info -h vip-1
3 3 YES node-1:9999 Linux node-1.example.com node-1
node-1:9999 Linux node-1.example.com node-1 9999 9000 4 LEADER 0 MEMBER
node-2:9999 Linux node-2.example.com node-2 9999 9000 7 STANDBY 0 MEMBER
node-3:9999 Linux node-3.example.com node-3 9999 9000 7 STANDBY 0 MEMBER
```
By default, PostgreSQL and Pgpool-II are set up on all three hosts.
The hosts on which PostgreSQL and Pgpool-II are set up are specified by
the `groups` variable in `Vagrantfile`. It is also possible to set up
PostgreSQL and Pgpool-II on separate hosts.
```Ruby:Vagrantfile
groups = {
"postgresql" => ["node-1", "node-2", "node-3"],
"pgpool2" => ["node-1", "node-2", "node-3"]
}
```
License
-------
BSD
Author Information
------------------
Tomoaki Sato