https://github.com/fly-apps/postgres-flex
Postgres HA setup using repmgr
https://github.com/fly-apps/postgres-flex
Last synced: 9 months ago
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Postgres HA setup using repmgr
- Host: GitHub
- URL: https://github.com/fly-apps/postgres-flex
- Owner: fly-apps
- Created: 2022-12-08T17:58:35.000Z (over 3 years ago)
- Default Branch: master
- Last Pushed: 2025-02-24T16:30:08.000Z (over 1 year ago)
- Last Synced: 2025-04-08T04:09:47.898Z (about 1 year ago)
- Language: Go
- Homepage:
- Size: 4.84 MB
- Stars: 126
- Watchers: 12
- Forks: 66
- Open Issues: 41
-
Metadata Files:
- Readme: README.md
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README
[](https://deepsource.io/gh/fly-apps/postgres-flex/?ref=repository-badge)
# High Availability Postgres on Fly.io
This repo contains all the code and configuration necessary to run a [highly available Postgres cluster](https://fly.io/docs/postgres/) in a Fly.io organization's private network. This source is packaged into [Docker images](https://hub.docker.com/r/flyio/postgres-flex/tags) which allow you to track and upgrade versions cleanly as new features are added.
## Getting started
```bash
# Be sure you're running the latest version of flyctl.
fly version update
# Provision a 3 member cluster
fly pg create --name --initial-cluster-size 3 --region ord
```
## High Availability
For HA, it's recommended that you run at least 3 members within your primary region. Automatic failovers will only consider members residing within your primary region. The primary region is represented as an environment variable defined within the `fly.toml` file.
## Horizontal scaling
Use the clone command to scale up your cluster.
```
# List your active Machines
fly machines list --app
# Clone a machine into a target region
fly machines clone --region
```
## Staying up-to-date!
This project is in active development so it's important to stay current with the latest changes and bug fixes.
```
# Use the following command to verify you're on the latest version.
fly image show --app
# Update your Machines to the latest version.
fly image update --app
```
## TimescaleDB support
We currently maintain a separate TimescaleDB-enabled image that you can specify at provision time.
```
fly pg create --image-ref flyio/postgres-flex-timescaledb:15
```
## Having trouble?
Create an issue or ask a question here: https://community.fly.io/
## Contributing
If you're looking to get involved, fork the project and send pull requests.