-----------------------第一步:拉取镜像-------------------
[root@localhost ~]# docker pull nginx
Using default tag: latest
latest: Pulling from library/nginx
b380bbd43752: Pull complete
fca7e12d1754: Pull complete
745ab57616cb: Pull complete
a4723e260b6f: Pull complete
1c84ebdff681: Pull complete
858292fd2e56: Pull complete
Digest: sha256:644a70516a26004c97d0d85c7fe1d0c3a67ea8ab7ddf4aff193d9f301670cf36
Status: Downloaded newer image for nginx:latest
docker.io/library/nginx:latest
-----------------------第二步:查看镜像-------------------
[root@localhost ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
redis latest 7faaec683238 9 days ago 113MB
nginx latest 87a94228f133 10 days ago 133MB
tomcat 8.5.15-jre8 b8dfe9ade316 4 years ago 334MB
daocloud.io/library/mysql 5.7.4 aa5364eb3d85 7 years ago 252MB
-----------------------第三步:linux中的端口对docker中容器端口进行映射并后台运行-------------------
[root@localhost ~]# docker run -d -p 80:80 --name nginx 87a94228f133
b0bc06dd7caecda671a23021d72a05184c71c73b0dd82bb15698a39c6a00f683
-----------------------第四步:查看已经运行的容器-------------------
[root@localhost ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
b0bc06dd7cae 87a94228f133 "/docker-entrypoint.…" 49 minutes ago Up 49 minutes 0.0.0.0:80->80/tcp, :::80->80/tcp nginx
b5b284d3d5fa b8dfe9ade316 "catalina.sh run" 5 hours ago Up 5 hours 0.0.0.0:8081->8080/tcp, :::8081->8080/tcp tomcat
f34e4b9e9bb5 7faaec683238 "docker-entrypoint.s…" 5 hours ago Up 5 hours 0.0.0.0:6380->6379/tcp, :::6380->6379/tcp redis运行结果：
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三丰云 https://www.sanfengyun.com
