[Nginx] Docker部署nginx实现过程图文详解

[root@localhost my.Shells]# docker images
REPOSITORY   TAG     IMAGE ID    CREATED     SIZE
docker.io/redis   latest     1e70071f4af4  6 weeks ago   106.7 MB
[root@localhost my.Shells]# docker pull nginx //下载nginx
Using default tag: latest
Trying to pull repository docker.io/library/nginx ... 
latest: Pulling from docker.io/library/nginx
e7bb522d92ff: Pull complete 
6edc05228666: Pull complete 
cd866a17e81f: Pull complete 
Digest: sha256:285b49d42c703fdf257d1e2422765c4ba9d3e37768d6ea83d7fe2043dad6e63d
[root@localhost my.Shells]# docker images
REPOSITORY   TAG     IMAGE ID    CREATED     SIZE
docker.io/nginx   latest     3f8a4339aadd  3 weeks ago   108.5 MB
docker.io/redis   latest     1e70071f4af4  6 weeks ago   106.7 MB

[root@localhost my.Shells]# docker run -p 8080:80 -d docker.io/nginx //将80端口映射为8080，或者80:80还是原先的80端口，不可以不写。
c0462d5e18783e20f9515108fa62ab0f2ac808ea85370a7c82aee9407abf4672
[root@localhost my.Shells]# netstat -anp | grep 8080 //端口已经开启了
tcp6  0   0 :::8080     :::*      LISTEN   2529/docker-proxy-c
[root@localhost my.Shells]# docker ps //nginx已经在运行了
CONTAINER ID  IMAGE    COMMAND     CREATED     STATUS     PORTS     NAMES
c0462d5e1878  docker.io/nginx   "nginx -g 'daemon off"  4 minutes ago  Up 4 minutes  0.0.0.0:8080->80/tcp  angry_mccarthy

[root@localhost my.Shells]# ./openFirewallPort.sh //先在防火墙上开一个端口
enter the port: 
success
 
---openFirewallPort.sh-------
 
 echo "enter the port: "
 read port
 firewall-cmd --add-port=$port/tcp
 
#下图已经成功访问到了

[root@localhost my.Shells]# docker cp hello.html c0462d5e1878://usr/share/nginx/html
[root@localhost my.Shells]# docker exec -it c0462d5e1878 bash
root@c0462d5e1878:/usr/share/nginx/html# ls
50x.html hello.html index.html

[root@localhost my.Shells]# docker ps
CONTAINER ID  IMAGE    COMMAND     CREATED     STATUS     PORTS     NAMES
c0462d5e1878  docker.io/nginx   "nginx -g 'daemon off"  56 minutes ago   Up 56 minutes  0.0.0.0:8080->80/tcp  angry_mccarthy
[root@localhost my.Shells]# docker stop c0462d5e1878 
c0462d5e1878
[root@localhost my.Shells]# docker ps
CONTAINER ID  IMAGE    COMMAND     CREATED     STATUS     PORTS    NAMES

[root@localhost my.Shells]# docker ps
CONTAINER ID  IMAGE    COMMAND     CREATED     STATUS     PORTS    NAMES
[root@localhost my.Shells]# docker start c0462d5e1878 
c0462d5e1878
[root@localhost my.Shells]# docker ps
CONTAINER ID  IMAGE    COMMAND     CREATED     STATUS     PORTS     NAMES
c0462d5e1878  docker.io/nginx   "nginx -g 'daemon off"  59 minutes ago   Up 12 seconds  0.0.0.0:8080->80/tcp  angry_mccarthy

[root@localhost my.Shells]# docker run -p 8081:80 -d docker.io/nginx 
//再开启一个服务，端口为8081
1fd8a0b5d138203150f1cdbfb9690235159159881785a4654abb04c7c96c5b18
[root@localhost my.Shells]# docker ps //会有两个进程，一个8080，一个8081
CONTAINER ID  IMAGE    COMMAND     CREATED     STATUS     PORTS     NAMES
1fd8a0b5d138  docker.io/nginx   "nginx -g 'daemon off"  4 seconds ago  Up 3 seconds  0.0.0.0:8081->80/tcp  suspicious_hypatia
c0462d5e1878  docker.io/nginx   "nginx -g 'daemon off"  About an hour ago  Up 4 minutes  0.0.0.0:8080->80/tcp  angry_mccarthy

[root@localhost my.Shells]# docker ps  //此时8080和8081都在运行
CONTAINER ID  IMAGE    COMMAND     CREATED     STATUS     PORTS     NAMES
1fd8a0b5d138  docker.io/nginx   "nginx -g 'daemon off"  4 minutes ago  Up 4 minutes  0.0.0.0:8081->80/tcp  suspicious_hypatia
c0462d5e1878  docker.io/nginx   "nginx -g 'daemon off"  About an hour ago  Up 8 minutes  0.0.0.0:8080->80/tcp  angry_mccarthy
[root@localhost my.Shells]# docker stop 1fd8a0b5d138  //停下8081
1fd8a0b5d138
[root@localhost my.Shells]# docker ps //就剩8080还在运行
CONTAINER ID  IMAGE    COMMAND     CREATED     STATUS     PORTS     NAMES
c0462d5e1878  docker.io/nginx   "nginx -g 'daemon off"  About an hour ago  Up 9 minutes  0.0.0.0:8080->80/tcp  angry_mccarthy
[root@localhost my.Shells]# docker ps -a //可以看到8080在运行，8081已经Exited
CONTAINER ID  IMAGE    COMMAND     CREATED     STATUS       PORTS     NAMES
1fd8a0b5d138  docker.io/nginx   "nginx -g 'daemon off"  5 minutes ago  Exited (0) 7 seconds ago       suspicious_hypatia
c0462d5e1878  docker.io/nginx   "nginx -g 'daemon off"  About an hour ago  Up 9 minutes    0.0.0.0:8080->80/tcp  angry_mccarthy
[root@localhost my.Shells]# 
 
[root@localhost my.Shells]# docker rm 1fd8a0b5d138 //移除这个进程进行了，注意运作着的进程是无法rm的，要先stop
1fd8a0b5d138