Redis Sentinel Docker Example

This repo is a demo of a simple Redis high availability setup on Docker, with a few tests.

Prerequisites

• docker
• docker-compose
• /bin/bash

Usage

1. Read docker-compose.yml

2. Read sentinel.conf

3. Read test.sh

4. Run the tests: ./test.sh:

   Master: 172.22.1.10
   all 3 only write to master tests passed in 25.000s.
   Stopping sentinel_redis1_1 ... done
   New master: 172.22.1.20
   all 3 election works tests passed in 17.000s.
   

Notes

• sentinel.conf must be writeable and not shared between Sentinel instances. It constantly gets updated by the Sentinel process which writes IPs, ports, and other info to it.