Linux single server deployment redis cluster, sentry cluster

Environmental Science:
1. There is only one Linux server
2. Use docker compose for deployment (the use of docker compose will not be introduced here)

1,docker images

Use redis in your own image

2,docker network ls

View the existing network segment (Note: it must be the same network segment, otherwise it will be inaccessible)
You can also create a new network segment: docker network create -- subnet = 172.19 0.0/16 mynetwork

3. redis docker compose YML file

Here, you can use your own network segment to modify: network_mode: own network segment name

---
version: '3'

services:
  # Container for master node
  redis-server-master:
    image: redis
    container_name: redis-server-master
    restart: always
    network_mode: redis_server_default
    # Specify the time zone to ensure that the time in the container is correct
    environment:
      TZ: "Asia/Shanghai"
    volumes:
      # Mapping profiles and data directories
      - /opt/sentinel/redis_server/redis6379.conf:/etc/redis/redis.conf
      - /opt/sentinel/redis_server/data6379:/data
    ports:
      - 8379:6379
    command: redis-server /etc/redis/redis.conf
  # Container from node 1
  redis-server-slave-1:
    image: redis
    container_name: redis-server-slave-1
    restart: always
    network_mode: redis_server_default
    depends_on:
      - redis-server-master
    environment:
      TZ: "Asia/Shanghai"
    volumes:
      - /opt/sentinel/redis_server/redis6380.conf:/etc/redis/redis.conf
      - /opt/sentinel/redis_server/data6380:/data
    ports:
      - 9380:6379
    command: redis-server /etc/redis/redis.conf
  # Container from node 2
  redis-server-slave-2:
    image: redis
    container_name: redis-server-slave-2
    restart: always
    network_mode: redis_server_default
    depends_on:
      - redis-server-master
    environment:
      TZ: "Asia/Shanghai"
    volumes:
      - /opt/sentinel/redis_server/redis6381.conf:/etc/redis/redis.conf
      - /opt/sentinel/redis_server/data6381:/data
    ports:
      - 9381:6379
    command: redis-server /etc/redis/redis.conf

4. Go to the corresponding directory and create a redis configuration file

Modify the corresponding configuration file redis6380 Conf and redis6381 conf
slaveof 172.18.0.2 6379 of which 172.18 0.2 ip address of the main redis service (after the redis service is started, you can view it through docker inspect redis server Master)
You can also configure in the yml file: command followed by -- slaveof 172.18 0.2 6379
Protected mode no allows remote access
requirepass own password (the master and slave passwords are consistent)
Master auth master service password (master and slave passwords are consistent)

Execute the command: docker compose up - D

After success, execute the command: docker ps -a# can see that it has been started successfully

Execute the command to check whether the master-slave synchronization is successful: you can see that there are two slave redis services

View the slave server: the status is up
Here, the master-slave of redis has been deployed.

5. Sentry docker compose YML profile

---

version: '3'

services:
  redis-sentinel-1:
    image: redis
    container_name: redis-sentinel-1
    restart: always
    volumes:
      - /opt/sentinel/sentinel_server/sentinel26379.conf:/etc/redis/sentinel.conf
    network_mode: redis_server_default
    ports:
      - 26379:26379
    # Specify the time zone to ensure that the time in the container is correct
    environment:
      TZ: "Asia/Shanghai"
    command: redis-sentinel /etc/redis/sentinel.conf
  redis-sentinel-2:
    image: redis
    container_name: redis-sentinel-2
    restart: always
    volumes:
      - /opt/sentinel/sentinel_server/sentinel26380.conf:/etc/redis/sentinel.conf
    network_mode: redis_server_default
    ports:
      - 26380:26379
    environment:
      TZ: "Asia/Shanghai"
    command: redis-sentinel /etc/redis/sentinel.conf
  redis-sentinel-3:
    image: redis
    container_name: redis-sentinel-3
    restart: always
    volumes:
      - /opt/sentinel/sentinel_server/sentinel26381.conf:/etc/redis/sentinel.conf
    network_mode: redis_server_default
    ports:
      - 26381:26379
    environment:
      TZ: "Asia/Shanghai"
    command: redis-sentinel /etc/redis/sentinel.conf

6. To the corresponding directory,

Configuration file sentinel26379 conf，sentinel26380.conf，sentinel26381.conf
Note: the myids of the three sentinel configuration files cannot be the same. You can delete the myid in the configuration file, and the startup will regenerate. The three configuration files can be the same. The configuration is as follows:

port 26379
dir "/tmp"
sentinel deny-scripts-reconfig yes
sentinel monitor mymaster 172.18.0.2 6379 2
sentinel auth-pass mymaster redis Service password

Execute the command to start: docker compose up - D