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运维之我的docker-运行你第一个镜像实例-docker容器
介绍
在docker里面镜像在运行文件系统和参数是，它永远不会发生变更。而容器就是镜像运行时的一个实例。
当你在docker上运行一个命令时他会运行以下几个操作：
1.检查镜像是否存在
2.如果没有就下载
3.加载镜像运行你要的操作
查看本地容器
[root@salt-node1 ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE centos7-ssh latest 14a2c2ad7cb1 29 hours ago 320.5 MB registry.cn-hangzhou.aliyuncs.com/forker/centos7-ssh last 14a2c2ad7cb1 29 hours ago 320.5 MB centos-ssh latest b21aa4e2d825 29 hours ago 320.5 MB centos7sshv1 latest c1a9c3f2f823 30 hours ago 320.5 MB docker.com/nginxs/centos7 last 00f6c5817350 33 hours ago 191.8 MB
查找服务端的容器
docker search [image name]
[root@salt-node1 ~]# docker search nginx NAME DESCRIPTION STARS OFFICIAL AUTOMATED nginx Official build of Nginx. 5079 [OK] jwilder/nginx-proxy Automated Nginx reverse proxy for docker c... 915 [OK] richarvey/nginx-php-fpm Container running Nginx + PHP-FPM capable ... 329 [OK] million12/nginx-php Nginx + PHP-FPM 5.5, 5.6, 7.0 (NG), CentOS... 75 [OK] webdevops/php-nginx Nginx with PHP-FPM 65 [OK] maxexcloo/nginx-php Framework container with nginx and PHP-FPM... 58 [OK] h3nrik/nginx-ldap NGINX web server with LDAP/AD, SSL and pro... 33 [OK] bitnami/nginx Bitnami nginx Docker Image 22 [OK] evild/alpine-nginx Minimalistic Docker image with Nginx 11 [OK] gists/nginx Nginx on Alpine 8 [OK] webdevops/nginx Nginx container 7 [OK] maxexcloo/nginx Framework container with nginx installed. 7 [OK] 1science/nginx Nginx Docker images that include Consul Te... 4 [OK] blacklabelops/nginx Dockerized Nginx Reverse Proxy Server. 4 [OK] ixbox/nginx Nginx on Alpine Linux. 3 [OK] dock0/nginx Arch container running nginx 2 [OK] servivum/nginx Nginx Docker Image with Useful Tools 2 [OK] frekele/nginx docker run --rm --name nginx -p 80:80 -p 4... 2 [OK] xataz/nginx Light nginx image 2 [OK] drupaldocker/nginx NGINX for Drupal 2 [OK] tozd/nginx Dockerized nginx. 1 [OK] unblibraries/nginx Baseline non-PHP nginx container 0 [OK] watsco/nginx nginx:1.11 0 [OK] c4tech/nginx Several nginx images for web applications. 0 [OK] funkygibbon/nginx nginx + openssl automated build, customisa... 0 [OK]
拉取容器到本地
[root@controller ~]# docker pull nginx latest: Pulling from nginx 2c49f83e0b13: Pull complete 4a5e6db8c069: Pull complete 08ecf065655b: Pull complete ff0618bc0767: Pull complete 12a77b8bf89a: Pull complete 5dde53921c3f: Pull complete a53219dc4d2f: Pull complete 8c7e9b6e3131: Pull complete f9bff7d0d06e: Pull complete 3ac9cfbdf572: Pull complete 491aec45eaf8: Pull complete cd3cf76a61ee: Pull complete Digest: sha256:e2dbdc9824482b79050a67c1e6143365d0eeefcc77bf0e22cc2715d91b8d1ad4 Status: Downloaded newer image for nginx:latest
运行容器
把容器里面的80端口映射到本机的"0.0.0.0:80"
-p 把容器内端口映射到本地 -p [本地端口]:[容器内端口] [root@controller ~]# docker run -p 0.0.0.0:80:80 -d nginx 7153768b14e2ab37856d63ccf2fd15c87f1c57f1f2a456b05131fe923930fce7
查看启动容器列表
[root@controller ~]# docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 7153768b14e2 nginx "nginx -g ‘daemon of 7 minutes ago Up 7 minutes 443/tcp, 0.0.0.0:81->80/tcp modest_poincare b9cb57eb22f9 nginx "nginx -g ‘daemon of 9 minutes ago Up 9 minutes 80/tcp, 443/tcp, 0.0.0.0:80->8080/tcp furious_mccarthy
操作容器启动，关闭，重启，kill
docker {start|stop|restart|kill} [CONTAINER ID]
[root@controller ~]# docker kill b9cb57eb22f9
启动一个容器并多个端口
docker run -d --name "web-node1" -p 8022:22 -p 80:80 nginx /usr/sbin/sshd -D
本地数据数据映射到容器内
-d 守护进程方式运行 -v 映射数据卷 -v [本地目录]:[容器内目录] docker run -d -it -v /root/www/:/mnt/ --name "web-node2" -p 8024:22 -p 80:80 nginx /usr/sbin/sshd -D
本文出自 “nginxs小白” 博客，转载请与作者联系！
运维之我的docker-运行你第一个镜像实例-docker容器
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