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https://github.com/buluma/ansible-role-postgresql_replication

Ansible role to deploy PostgreSQL replication.
https://github.com/buluma/ansible-role-postgresql_replication

ansible molecule postgresql replication tox

Last synced: about 2 months ago
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Ansible role to deploy PostgreSQL replication.

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# [Ansible role postgresql_replication](#ansible-role-postgresql_replication)

Ansible role to deploy postgresql software with replication

|GitHub|Issues|Pull Requests|Version|Downloads|
|------|------|-------------|-------|---------|
|[![github](https://github.com/buluma/ansible-role-postgresql_replication/actions/workflows/molecule.yml/badge.svg)](https://github.com/buluma/ansible-role-postgresql_replication/actions/workflows/molecule.yml)|[![Issues](https://img.shields.io/github/issues/buluma/ansible-role-postgresql_replication.svg)](https://github.com/buluma/ansible-role-postgresql_replication/issues/)|[![PullRequests](https://img.shields.io/github/issues-pr-closed-raw/buluma/ansible-role-postgresql_replication.svg)](https://github.com/buluma/ansible-role-postgresql_replication/pulls/)|[![Version](https://img.shields.io/github/release/buluma/ansible-role-postgresql_replication.svg)](https://github.com/buluma/ansible-role-postgresql_replication/releases/)|[![Ansible Role](https://img.shields.io/ansible/role/d/buluma/postgresql_replication)](https://galaxy.ansible.com/ui/standalone/roles/buluma/postgresql_replication/documentation)|

## [Example Playbook](#example-playbook)

This example is taken from [`molecule/default/converge.yml`](https://github.com/buluma/ansible-role-postgresql_replication/blob/master/molecule/default/converge.yml) and is tested on each push, pull request and release.

```yaml
---
- become: true
gather_facts: true
hosts: all
name: Converge
roles:
- role: buluma.postgresql_replication
```

The machine needs to be prepared. In CI this is done using [`molecule/default/prepare.yml`](https://github.com/buluma/ansible-role-postgresql_replication/blob/master/molecule/default/prepare.yml):

```yaml
---
- become: true
gather_facts: false
hosts: all
name: Prepare
roles:
- role: buluma.bootstrap
- role: enix.postgresql
```

Also see a [full explanation and example](https://buluma.github.io/how-to-use-these-roles.html) on how to use these roles.

## [Role Variables](#role-variables)

The default values for the variables are set in [`defaults/main.yml`](https://github.com/buluma/ansible-role-postgresql_replication/blob/master/defaults/main.yml):

```yaml
---
postgresql_replication__group: postgresql
postgresql_replication__group_master: postgresql_master
postgresql_replication__group_replicas: postgresql_replicas
postgresql_replication__password: replicate
postgresql_replication__trigger_file: /tmp/MasterNow
postgresql_replication__user: replicate
postgresql_replication__waldir: /var/lib/postgresql/wal-slave/
postgresql_replication__walsegments: 64
postgresql_replication__walsenders: 3
```

## [Requirements](#requirements)

- pip packages listed in [requirements.txt](https://github.com/buluma/ansible-role-postgresql_replication/blob/master/requirements.txt).

## [State of used roles](#state-of-used-roles)

The following roles are used to prepare a system. You can prepare your system in another way.

| Requirement | GitHub |
|-------------|--------|
|[buluma.bootstrap](https://galaxy.ansible.com/buluma/bootstrap)|[![Build Status GitHub](https://github.com/buluma/ansible-role-bootstrap/workflows/Ansible%20Molecule/badge.svg)](https://github.com/buluma/ansible-role-bootstrap/actions)|
|[enix.postgresql](https://galaxy.ansible.com/buluma/enix.postgresql)|[![Build Status GitHub](https://github.com/buluma/enix.postgresql/workflows/Ansible%20Molecule/badge.svg)](https://github.com/buluma/enix.postgresql/actions)|

## [Context](#context)

This role is part of many compatible roles. Have a look at [the documentation of these roles](https://buluma.github.io/) for further information.

Here is an overview of related roles:

![dependencies](https://raw.githubusercontent.com/buluma/ansible-role-postgresql_replication/png/requirements.png "Dependencies")

## [Compatibility](#compatibility)

This role has been tested on these [container images](https://hub.docker.com/u/robertdebock):

|container|tags|
|---------|----|
|[Debian](https://hub.docker.com/r/robertdebock/debian)|all|

The minimum version of Ansible required is 2.1, tests have been done on:

- The previous version.
- The current version.
- The development version.

If you find issues, please register them on [GitHub](https://github.com/buluma/ansible-role-postgresql_replication/issues).

## [License](#license)

[Apache-2.0](https://github.com/buluma/ansible-role-postgresql_replication/blob/master/LICENSE).

## [Author Information](#author-information)

[Michael Buluma](https://buluma.github.io/)