如何在docker容器中成功启动redis并进入

docker search redis

docker pull redis

[root@localhost ~]# docker images
REPOSITORY                TAG                 IMAGE ID            CREATED             SIZE
docker.io/tomcat          latest              aeea3708743f        9 days ago          529 MB
docker.io/rabbitmq        latest              2b5cda43d345        2 weeks ago         151 MB
docker.io/elasticsearch   7.6.0               5d2812e0e41c        2 weeks ago         790 MB
docker.io/redis           latest              44d36d2c2374        2 weeks ago         98.2 MB
docker.io/mysql           latest              791b6e40940c        2 weeks ago         465 MB
[root@localhost ~]#

[root@localhost ~]# systemctl start docker

[root@localhost ~]# docker run -d redis
da45019bf760304a66c3dd96b8847a50eddd8c73ff77cd3b3f37a46d7f016834

[root@localhost ~]# docker run -d -p 6379:6379   --name="myredis"  redis
249dd65794b32310dea5e094f41df845d971b623382ddc1179c404402f576750
[root@localhost ~]#

docker exec ：在运行的容器中执行命令
# 语法
docker exec [OPTIONS] CONTAINER COMMAND [ARG...]
# OPTIONS说明：
-d :分离模式: 在后台运行
-i :即使没有附加也保持STDIN 打开
-t :分配一个伪终端

[root@localhost ~]# docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
249dd65794b3        redis               "docker-entrypoint..."   3 minutes ago       Up 3 minutes        0.0.0.0:6379->6379/tcp   myredis
da45019bf760        redis               "docker-entrypoint..."   18 minutes ago      Up 18 minutes       6379/tcp                 naughty_pasteur
[root@localhost ~]#

[root@localhost ~]# docker exec -it da45019bf760 redis-cli
127.0.0.1:6379> 
127.0.0.1:6379> set msg "Hello World Redis"
OK
127.0.0.1:6379> get msg
"Hello World Redis"
127.0.0.1:6379>