step-1 搜索镜像

使用search命令，建议去dockerhub上搜索，可以看到帮助文档

[root@localhost ~]# docker search nginx

NAME DESCRIPTION STARS OFFICIAL AUTOMATED

nginx Official build of Nginx. 15364 [OK]

jwilder/nginx-proxy Automated Nginx reverse proxy for docker con… 2060 [OK]

richarvey/nginx-php-fpm Container running Nginx + PHP-FPM capable of… 816 [OK]

jc21/nginx-proxy-manager Docker container for managing Nginx proxy ho… 236

linuxserver/nginx An Nginx container, brought to you by LinuxS… 152

tiangolo/nginx-rtmp Docker image with Nginx using the nginx-rtmp… 139 [OK]

jlesage/nginx-proxy-manager Docker container for Nginx Proxy Manager 132 [OK]

alfg/nginx-rtmp NGINX, nginx-rtmp-module and FFmpeg from sou… 105 [OK]

jasonrivers/nginx-rtmp Docker images to host RTMP streams using NGI… 92 [OK]

nginxdemos/hello NGINX webserver that serves a simple page co… 71 [OK]

privatebin/nginx-fpm-alpine PrivateBin running on an Nginx, php-fpm & Al… 56 [OK]

nginx/nginx-ingress NGINX and NGINX Plus Ingress Controllers fo… 55

nginxinc/nginx-unprivileged Unprivileged NGINX Dockerfiles 46

staticfloat/nginx-certbot Opinionated setup for automatic TLS certs lo… 24 [OK]

nginx/nginx-prometheus-exporter NGINX Prometheus Exporter for NGINX and NGIN… 19

schmunk42/nginx-redirect A very simple container to redirect HTTP tra… 19 [OK]

nginxproxy/nginx-proxy Automated Nginx reverse proxy for docker con… 18

centos/nginx-112-centos7 Platform for running nginx 1.12 or building … 15

centos/nginx-18-centos7 Platform for running nginx 1.8 or building n… 13

bitwarden/nginx The Bitwarden nginx web server acting as a r… 11

flashspys/nginx-static Super Lightweight Nginx Image 10 [OK]

mailu/nginx Mailu nginx frontend 9 [OK]

sophos/nginx-vts-exporter Simple server that scrapes Nginx vts stats a… 7 [OK]

ansibleplaybookbundle/nginx-apb An APB to deploy NGINX 2 [OK]

wodby/nginx Generic nginx 1 [OK]

step-2 下载镜像

[root@localhost ~]# docker pull nginx

Using default tag: latest

latest: Pulling from library/nginx

e1acddbe380c: Pull complete

e21006f71c6f: Pull complete

f3341cc17e58: Pull complete

2a53fa598ee2: Pull complete

12455f71a9b5: Pull complete

b86f2ba62d17: Pull complete

Digest: sha256:4d4d96ac750af48c6a551d757c1cbfc071692309b491b70b2b8976e102dd3fef

Status: Downloaded newer image for nginx:latest

docker.io/library/nginx:latest

step-3 运行测试

[root@localhost ~]# docker images

REPOSITORY   TAG       IMAGE ID       CREATED        SIZE

nginx        latest    dd34e67e3371   8 days ago     133MB

centos       latest    300e315adb2f   8 months ago   209MB

#-d 后台运行
#--name 给容器命名
#-p 宿主机端口:容器内部端口　　#将容器的端口暴露出来，映射到宿主机的端口上

[root@localhost ~]# docker run -d --name nginx01 -p 3344:80 nginx

e3711d6853698d2028c961cd2b4b2cfc85386ba32ed3a333f2da82dc0de4e0de

[root@localhost ~]# docker ps

CONTAINER ID   IMAGE     COMMAND                  CREATED          STATUS          PORTS                                   NAMES

e3711d685369   nginx     "/docker-entrypoint.…"   11 seconds ago   Up 10 seconds   0.0.0.0:3344->80/tcp, :::3344->80/tcp   nginx01

e88decf20b06   centos    "/bin/bash"              51 minutes ago   Up 49 minutes                                           gallant_chaplygin

[root@localhost ~]# curl localhost:3344

<!DOCTYPE html>

<html>

<head>

<title>Welcome to nginx!</title>

<style>

    body {

        width: 35em;

        margin: 0 auto;

        font-family: Tahoma, Verdana, Arial, sans-serif;

    }

</style>

</head>

<body>

<h1>Welcome to nginx!</h1>

<p>If you see this page, the nginx web server is successfully installed and

working. Further configuration is required.</p>

<p>For online documentation and support please refer to

<a href="http://nginx.org/">nginx.org</a>.<br/>

Commercial support is available at

<a href="http://nginx.com/">nginx.com</a>.</p>

<p><em>Thank you for using nginx.</em></p>

</body>

</html>

端口暴露逻辑

step-4 进入容器

[root@localhost ~]# docker ps

CONTAINER ID   IMAGE     COMMAND                  CREATED             STATUS             PORTS                                   NAMES

e3711d685369   nginx     "/docker-entrypoint.…"   26 minutes ago      Up 26 minutes      0.0.0.0:3344->80/tcp, :::3344->80/tcp   nginx01

e88decf20b06   centos    "/bin/bash"              About an hour ago   Up About an hour                                           gallant_chaplygin

[root@localhost ~]# docker exec -it nginx01 /bin/bash

root@e3711d685369:/# whereis nginx

nginx: /usr/sbin/nginx /usr/lib/nginx /etc/nginx /usr/share/nginx

root@e3711d685369:/# cd /etc/nginx

root@e3711d685369:/etc/nginx# ls

conf.d    fastcgi_params    mime.types  modules  nginx.conf  scgi_params  uwsgi_params

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