Docker compose public network deployment redis sentinel mode

docker-compose Public network deployment redis Sentinel mode

Cloud services are used here redis The sentry cluster , And exposed to the public network , This is for testing purposes only , Production should not be exposed to the public network

About online redis Sentinel and cluster docker There are many deployment tutorials , Refer to the following

https://segmentfault.com/a/1190000040755506

https://cloud.tencent.com/developer/news/688466

These deployment tutorials are available on the intranet , But it will not be connected under the public network , Make a note of the main differences

1 start-up redis Master slave node

To write reids Master-slave docker-compose.yml

version: '3.8'
services:
  master:
    image: redis:6.0.8
    container_name: redis-master
    privileged: true
    restart: always
    #  Note that there  --cluster-announce-ip  Specify the exposed address , Fill in the public network address here 
    #  Many deployments here are not specified --masterauth,master After the node restarts, it will not be able to join the cluster 
    command: redis-server --port 6380 --requirepass redispwd --masterauth redispwd --appendonly yes --cluster-announce-ip xxx.xxx.xxx.xxx --cluster-announce-port 6380 --cluster-announce-bus-port 16380
    ports: #  As specified above --port Agreement 
    - 6380:6380
    volumes:
    - ./data1:/data
  slave1:
    image: redis:6.0.8
    container_name: redis-slave-1
    privileged: true
    restart: always
    #  There's a pit here ,--slaveof Don't write directly redis-master, Otherwise, it will be recognized as an intranet IP
    command: redis-server --port 6381 --slaveof xxx.xxx.xxx.xxx 6380  --requirepass redispwd --masterauth redispwd  --appendonly yes --cluster-announce-ip xxx.xxx.xxx.xxx --cluster-announce-port 6381 --cluster-announce-bus-port 16381
    ports: #  As specified above --port Agreement 
    - 6381:6381
    volumes:
    - ./data2:/data
  slave2:
    image: redis:6.0.8
    container_name: redis-slave-2
    privileged: true
    restart: always
    command: redis-server --port 6382 --slaveof xxx.xxx.xxx.xxx 6380  --requirepass redispwd --masterauth redispwd  --appendonly yes --cluster-announce-ip xxx.xxx.xxx.xxx --cluster-announce-port 6382 --cluster-announce-bus-port 16382
    ports: #  As specified above --port Agreement 
    - 6382:6382
    volumes:
    - ./data3:/data
networks:
  default:
    external:
      name: redis_default

Get into redis Corresponding docker-compose.yml The catalog of , Carry out orders ：

#  Creating networks , There is no need to create 
docker network create redis_default
# -d Means running in the background 
docker-compose up -d

2 Sentinel file preparation

To write docker-compose.yml

version: '3.8'
services:
  sentinel1:
    image: redis:6.0.8
    container_name: redis-sentinel-1
    privileged: true
    restart: always
    ports:
    - 26380:26380
    volumes:
    - ./sentinel1.conf:/usr/local/etc/redis/sentinel.conf
    command: bash -c "redis-sentinel /usr/local/etc/redis/sentinel.conf && chmod 777 /usr/local/etc/redis/sentinel.conf"
  sentinel2:
    image: redis:6.0.8
    container_name: redis-sentinel-2
    privileged: true
    restart: always
    ports:
    - 26381:26380
    volumes:
    - ./sentinel2.conf:/usr/local/etc/redis/sentinel.conf
    command: bash -c "redis-sentinel /usr/local/etc/redis/sentinel.conf && chmod 777 /usr/local/etc/redis/sentinel.conf"
  sentinel3:
    image: redis:6.0.8
    container_name: redis-sentinel-3
    privileged: true
    ports:
    - 26382:26380
    volumes:
    - ./sentinel3.conf:/usr/local/etc/redis/sentinel.conf
    command: bash -c "redis-sentinel /usr/local/etc/redis/sentinel.conf && chmod 777 /usr/local/etc/redis/sentinel.conf"
networks:
  default:
    external:
      name: redis_default

To write sentinel.conf The configuration file

# mymaster Is the custom cluster name 
# xxx.xxx.xxx.xxx  Master node IP The public address of 
# 6380  by  redis-master  The port of ,2  Is the minimum number of votes （ Because there is  3  platform  Sentinel  So it can be set to  2）
port 26380
dir /tmp
# protected-mode no
# bind 0.0.0.0
sentinel monitor mymaster xxx.xxx.xxx.xxx 6380 2
sentinel down-after-milliseconds mymaster 30000
sentinel parallel-syncs mymaster 1
#  The password is consistent with the above 
sentinel auth-pass mymaster redispwd
sentinel failover-timeout mymaster 180000
sentinel deny-scripts-reconfig yes

Copy the above documents separately 3 The copies are named sentinel1.conf、sentinel2.conf、sentinel3.conf And docker-compose.yml The configuration file in corresponds to , Then place and the sentry's docker-compose.yml In the same directory

3 Activate the sentry

#  Get into docker-compose.yml Execute in the folder 
docker-compose up -d

4 Test connection

With ARDM For example , Fill in the corresponding information

It can be connected normally.