Docker installs the official Redis image and enables password authentication

Reference: Docker official redis documentation

1. If you have special version requirements, you can check the redis image tag version

3.2.11, 3.2, 3 (3.2/Dockerfile)
3.2.11-32bit, 3.2-32bit, 3-32bit (3.2/32bit/Dockerfile)
3.2.11-alpine, 3.2-alpine, 3-alpine (3.2/alpine/Dockerfile)
4.0.9, 4.0, 4, latest (4.0/Dockerfile)
4.0.9-32bit, 4.0-32bit, 4-32bit, 32bit (4.0/32bit/Dockerfile)
4.0.9-alpine, 4.0-alpine, 4-alpine, alpine (4.0/alpine/Dockerfile)

2. Select the latest version

docker pull redis:latest

[root@localhost~]# docker pull redis:latest
latest: Pulling from library/redis
4d0d76e05f3c: Pull complete 
cfbf30a55ec9: Pull complete 
82648e31640d: Pull complete 
fb7ace35d550: Pull complete 
497bf119bebf: Pull complete 
89340f6074da: Pull complete 
Digest: sha256:166788713c58c2db31c41de82bbe133560304c16c70e53a53ca3cfcf35467d8a
Status: Downloaded newer image for redis:latest

3. Start the container with a password

docker run --name redis-test -p 6379:6379 -d --restart=always redis:latest redis-server --appendonly yes --requirepass "your passwd"

-p 6379:6379 : Map the port in the container to the host port (the right side maps to the left side)
redis-server –appendonly yes: Execute the redis-server startup command in the container and turn on the redis persistence configuration
requirepass "your passwd": set the authentication password –restart=always: start when docker starts

4. View the container

docker ps

[root@localhost~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
a126ec987cfe redis:latest "docker-entrypoint.s..." 4 minutes ago Up 4 minutes 0.0.0.0:6379->6379/tcp redis-test
3645da72ece6 portainer/portainer "/portainer" 7 days ago Up 7 days 0.0.0.0:9000->9000/tcp sharp_lovelace
118ba79de20a hwdsl2/ipsec-vpn-server "/opt/src/run.sh" 12 days ago Up 12 days 0.0.0.0:500->500/udp, 0.0.0.0:4500->4500/udp l2tp-vpn-server
848fdba6de60 kylemanna/openvpn "ovpn_run" 12 days ago Up 12 days 1194/udp, 0.0.0.0:1194->1194/tcp openvpn
a273504f9646 mysql:5.6.38 "docker-entrypoint.s..." 8 weeks ago Up 5 days 0.0.0.0:3306->3306/tcp mysql5.6.38

The id of the redis container is a126ec987cfe

5. Check the process

ps -ef|grep redis

[root@localhost~]# ps -ef|grep redis
polkitd 26547 26535 0 14:58 ? 00:00:00 redis-server *:6379
root 26610 26432 0 15:05 pts/0 00:00:00 grep --color=auto redis

6. Enter the container and execute the redis client

docker exec -it a126ec987cfe redis-cli -a 'your passwd'

[root@localhost~]# docker exec -it a126ec987cfe redis-cli -h 127.0.0.1 -p 6379 -a 'your passwd'
127.0.0.1:6379> ping
PONG
127.0.0.1:6379>info
# Server
redis_version:4.0.9
redis_git_sha1:00000000
redis_git_dirty:0
redis_build_id:d3ebfc7feabc1290
redis_mode:standalone
os:Linux 3.10.0-693.21.1.el7.x86_64 x86_64
...

-h 127.0.0.1 : The default is not added, which is -h 127.0.0.1
-p 6379: The default is not added, which is -p 6379

Or connect without a password, as follows:

[root@localhost ~]# docker exec -it a126ec987cfe redis-cli
127.0.0.1:6379> ping
(error) NOAUTH Authentication required.
127.0.0.1:6379> auth 'your passwd'
OK
127.0.0.1:6379> ping
PONG
127.0.0.1:6379>info
# Server
redis_version:4.0.9
redis_git_sha1:00000000
redis_git_dirty:0
redis_build_id:d3ebfc7feabc1290
redis_mode:standalone
os:Linux 3.10.0-693.21.1.el7.x86_64 x86_64
arch_bits:64

The above is the full content of this article. I hope it will be helpful for everyone’s study. I also hope that everyone will support 123WORDPRESS.COM.

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