https://github.com/lhns/docker-swarm-keepalived

Operator for keepalived on docker swarm
https://github.com/lhns/docker-swarm-keepalived

docker failover ha keepalived metallb swarm vrrp

Last synced: 7 months ago
JSON representation

Operator for keepalived on docker swarm

• Host: GitHub
• URL: https://github.com/lhns/docker-swarm-keepalived
• Owner: lhns
• License: apache-2.0
• Created: 2021-01-09T02:42:50.000Z (almost 5 years ago)
• Default Branch: main
• Last Pushed: 2023-12-02T17:20:23.000Z (almost 2 years ago)
• Last Synced: 2024-02-14T21:57:37.075Z (over 1 year ago)
• Topics: docker, failover, ha, keepalived, metallb, swarm, vrrp
• Language: Shell
• Homepage: https://hub.docker.com/r/lolhens/keepalived-swarm
• Size: 42 KB
• Stars: 19
• Watchers: 3
• Forks: 6
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# docker-swarm-keepalived

[![Build Workflow](https://github.com/lhns/docker-swarm-keepalived/workflows/build/badge.svg)](https://github.com/lhns/docker-swarm-keepalived/actions?query=workflow%3Abuild)

[![Docker Stars](https://img.shields.io/docker/stars/lolhens/keepalived-swarm)](https://hub.docker.com/r/lolhens/keepalived-swarm)

[![Docker Pulls](https://img.shields.io/docker/pulls/lolhens/keepalived-swarm)](https://hub.docker.com/r/lolhens/keepalived-swarm)

[![Docker Image Size](https://img.shields.io/docker/image-size/lolhens/keepalived-swarm)](https://hub.docker.com/r/lolhens/keepalived-swarm)

[![Apache License 2.0](https://img.shields.io/github/license/lhns/docker-swarm-keepalived.svg?maxAge=3600)](https://www.apache.org/licenses/LICENSE-2.0)

Operator for [keepalived](https://github.com/acassen/keepalived) on docker swarm.

Uses [osixia/docker-keepalived](https://github.com/osixia/docker-keepalived).

## Usage

- Enable the "ip_vs" kernel module if not enabled

```sh

lsmod | grep -P '^ip_vs\s' || (echo "modprobe ip_vs" >> /etc/modules && modprobe ip_vs)

```

- Set a different priority for each node

```sh

docker node update node1 --label-add KEEPALIVED_PRIORITY=100

docker node update node2 --label-add KEEPALIVED_PRIORITY=101

docker node update node3 --label-add KEEPALIVED_PRIORITY=102

```

- Deploy the stack

## Docker images

https://github.com/lhns/docker-swarm-keepalived/pkgs/container/keepalived-swarm

## Docker Stack

```yml

version: '3.8'

services:

  keepalived:

    image: ghcr.io/lhns/keepalived-swarm

    volumes:

      - /var/run/docker.sock:/var/run/docker.sock

    networks:

      - host

    deploy:

      mode: global

      placement:

        constraints: [node.role == manager]

    environment:

      KEEPALIVED_VIRTUAL_IPS: "192.168.1.231, 192.168.1.232"

networks:

  host:

    external: true

    name: host

```

## Helpful Links

- https://github.com/acassen/keepalived

- https://github.com/osixia/docker-keepalived

- https://geek-cookbook.funkypenguin.co.nz/ha-docker-swarm/keepalived/

## License

This project uses the Apache 2.0 License. See the file called LICENSE.