Table of Contents
- Create the Redis Conf File
- Create the docker-compose file for Redis cluster
- Run the docker containers for Redis Cluster
- References
You always need a local running Redis Cluster if your application has a dependency on the redis cluster. You can follow the below steps to create a redis cluster using docker-compose
Create the Redis Conf File
Move to the folder where you want to create the redis cluster. First, create a folder named redis-cluster
Bash
mkdir redis-cluterCreate a new folder inside the redis-cluster folder that will hold the configuration for all the redis cluster nodes
Bash
cd redis-cluster
mkdir redis
touch redis.confPut the below contents in the redis.conf file
Bash
cluster-enabled yes
cluster-config-file nodes.conf
cluster-node-timeout 5000
appendonly yesmove out of the redis folder and come to the redis-cluster directory
Bash
cd ..Create the docker-compose file for Redis cluster
Bash
touch redis-cluster-docker-compose.ymlPut the below contents in the docker-compose file
Bash
version: '3'
networks:
redis-cluster-compose:
driver: bridge
services:
redis-cluster-creator:
command:
- redis-cli
- --cluster
- create
- localhost:7001
- localhost:7002
- localhost:7003
- localhost:7004
- localhost:7005
- localhost:7006
- --cluster-yes
- --cluster-replicas
- '1'
depends_on:
redis-node-1:
condition: service_healthy
redis-node-2:
condition: service_healthy
redis-node-3:
condition: service_healthy
redis-node-4:
condition: service_healthy
redis-node-5:
condition: service_healthy
redis-node-6:
condition: service_healthy
image: docker.io/redis:latest
network_mode: host
redis-node-1:
command:
- redis-server
- /redis/redis.conf
- --port
- '7001'
healthcheck:
interval: 10s
retries: '3'
test:
- CMD
- redis-cli
- -p
- '7001'
- -c
- ping
timeout: 5s
image: docker.io/redis:latest
network_mode: host
ports:
- 7001:7000
volumes:
- redis-data-1:/data
- ./redis:/redis
redis-node-2:
command:
- redis-server
- /redis/redis.conf
- --port
- '7002'
healthcheck:
interval: 10s
retries: '3'
test:
- CMD
- redis-cli
- -p
- '7002'
- -c
- ping
timeout: 5s
image: docker.io/redis:latest
network_mode: host
ports:
- 7002:7000
volumes:
- redis-data-2:/data
- ./redis:/redis
redis-node-3:
command:
- redis-server
- /redis/redis.conf
- --port
- '7003'
healthcheck:
interval: 10s
retries: '3'
test:
- CMD
- redis-cli
- -p
- '7003'
- -c
- ping
timeout: 5s
image: docker.io/redis:latest
network_mode: host
ports:
- 7003:7000
volumes:
- redis-data-3:/data
- ./redis:/redis
redis-node-4:
command:
- redis-server
- /redis/redis.conf
- --port
- '7004'
healthcheck:
interval: 10s
retries: '3'
test:
- CMD
- redis-cli
- -p
- '7004'
- -c
- ping
timeout: 5s
image: docker.io/redis:latest
network_mode: host
ports:
- 7004:7000
volumes:
- redis-data-4:/data
- ./redis:/redis
redis-node-5:
command:
- redis-server
- /redis/redis.conf
- --port
- '7005'
healthcheck:
interval: 10s
retries: '3'
test:
- CMD
- redis-cli
- -p
- '7005'
- -c
- ping
timeout: 5s
image: docker.io/redis:latest
network_mode: host
ports:
- 7005:7000
volumes:
- redis-data-5:/data
- ./redis:/redis
redis-node-6:
command:
- redis-server
- /redis/redis.conf
- --port
- '7006'
healthcheck:
interval: 10s
retries: '3'
test:
- CMD
- redis-cli
- -p
- '7006'
- -c
- ping
timeout: 5s
image: docker.io/redis:latest
network_mode: host
ports:
- 7006:7000
volumes:
- redis-data-6:/data
- ./redis:/redis
volumes:
redis-data-1: {}
redis-data-2: {}
redis-data-3: {}
redis-data-4: {}
redis-data-5: {}
redis-data-6: {}
In the above configuration we will be creating six Redis Server nodes. There will be three master nodes and each master node will have one slave
Run the docker containers for Redis Cluster
Bash
docker-compose -p "" -f redis-cluster-docker-compose.yml upthis will run the redis-cluster on your local machine
- Redis containers are running on ports 7001, 7002, 7003, 7004, 7005, 7006
If you check the running containers you will get the below output
Bash
➜ docker-compose docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
a6e5b1393497 redis:latest "docker-entrypoint.s…" 11 minutes ago Up 4 minutes (healthy) docker-compose-redis-node-5-1
ed3f7bb7fbb8 redis:latest "docker-entrypoint.s…" 11 minutes ago Up 4 minutes (healthy) docker-compose-redis-node-3-1
9ce7e124b13f redis:latest "docker-entrypoint.s…" 11 minutes ago Up 4 minutes (healthy) docker-compose-redis-node-4-1
39312cfeef00 redis:latest "docker-entrypoint.s…" 11 minutes ago Up 4 minutes (healthy) docker-compose-redis-node-1-1
e14592f57170 redis:latest "docker-entrypoint.s…" 11 minutes ago Up 4 minutes (healthy) docker-compose-redis-node-6-1
104be25c7404 redis:latest "docker-entrypoint.s…" 11 minutes ago Up 4 minutes (healthy) docker-compose-redis-node-2-1
Raj Ranjan