https://github.com/devgateway/ansible-role-postgres-ha

Ansible wrapper role to install a two-node failover Postgres cluster
https://github.com/devgateway/ansible-role-postgres-ha

ansible ansible-role cluster clustering corosync failover high-availability pacemaker postgres postgres-server postgresql

Last synced: about 1 month ago
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Ansible wrapper role to install a two-node failover Postgres cluster

• Host: GitHub
• URL: https://github.com/devgateway/ansible-role-postgres-ha
• Owner: devgateway
• Created: 2018-06-08T20:43:50.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2018-10-25T22:55:38.000Z (over 7 years ago)
• Last Synced: 2025-07-23T13:00:06.600Z (10 months ago)
• Topics: ansible, ansible-role, cluster, clustering, corosync, failover, high-availability, pacemaker, postgres, postgres-server, postgresql
• Size: 7.81 KB
• Stars: 1
• Watchers: 6
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# devgateway.postgres-ha

Wrapper role to set up a two-node replicating Postgres cluster, and configure firewall.

## Required Variables

### `pgha_pcmk_passwd`

Password for Pacemaker user `hacluster`.

### `pgha_repl_passwd`

Password for Postgres replication user.

### `pgha_virtual_ip`

The virtual IP address to assign to the master node.

## Optional Variables

### `pgha_configure_firewall`

Whether to add `postgresql` and `high-availability` services to Firewalld.

Default: true

### `pgha_pcmk_cluster_name`

Name of the cluster. Appears in `pcs` output.

Default: `postgres`

### `pgha_pcmk_default_op_timeout`

Default timeout (in seconds) for resource operations.

Default: 60

### `pgha_pcmk_monitoring_intervals`

A dictionary with monitoring intervals (in seconds) for individual resources. Master and slave

intervals must be different.

Defaults:

* `virtual_ip`: 10

* `master`: 3

* `slave`: 7

### `pgha_postgres`

A dictionary defining Postgres version, paths, and restore command.

Default:

* `version`: 9.4

* `data_dir`: /var/lib/pgsql/9.4/data

* `bin_dir`: /usr/pgsql-9.4/bin

* `archive_dir`: /var/lib/pgsql/9.4/archive

* `service`: postgresql-9.4

* `restore_command`: cp /var/lib/pgsql/9.4/archive/%f %p

### `pgha_replace_motd`

Whether to replace contents of `/etc/motd` with cluster management tips.

Default: true

### `pgha_repl_user`

Postgres user that replication runs as.

Default: `replication`

## Dependencies

* [devgateway.postgres-replication](https://github.com/devgateway/ansible-role-postgres-replication)

* [devgateway.pacemaker](https://github.com/devgateway/ansible-role-pacemaker)

## Example Playbook

    ---

    - hosts:

        - alpha

        - bravo

      tasks:

        - name: Set up high availability Postgres

          include_role:

            name: devgateway.postgres-ha

          vars:

            pgha_virtual_ip: 10.0.0.4

            pgha_repl_passwd: hunter2

            pgha_pcmk_passwd: qwerty

## License

GPL v3+

# Author Information

Copyright 2018, Development Gateway