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国外有哪些网站做b2b的,北京搜索引擎关键词优化,做搜狐网站页面,自定义wordpress页面在实际生产工作中，通常是没法直接访问公网的，但是有经常需要使用Docker部署应用，本文将介绍使用Docker从拉取nginx、打包、分发到加载部署nginx的全流程！ 1 准备工作 1.1 安装docker 请参考：Docker入门指南&#xff…

在实际生产工作中，通常是没法直接访问公网的，但是有经常需要使用Docker部署应用，本文将介绍使用Docker从拉取nginx、打包、分发到加载部署nginx的全流程！

1 准备工作

1.1 安装docker

请参考：Docker入门指南：1分钟搞定安装 + 常用命令，轻松入门容器化！-CSDN博客

1.2 配置镜像地址

vim /etc/docker/daemon.json 
# 编辑/etc/docker/daemon.json文件，添加如下内容
{"registry-mirrors": ["https://proxy.1panel.live","https://docker.1panel.top","https://docker.1ms.run","https://docker.ketches.cn","https://docker.hpcloud.cloud","https://docker.1panel.live","http://mirrors.ustc.edu.cn","http://mirror.azure.cn","https://nrbewqda.mirror.aliyuncs.com","https://dmmxhzvq.mirror.aliyuncs.com"]
}

# 重新加载配置并重启docker
systemctl daemon-reload
systemctl restart docker.service

# 验证镜像地址是否生效可用，能够看到Registry Mirrors:说明正常
[root@node3 ~]# docker info
Client:Version:    27.3.1Context:    defaultDebug Mode: falseServer:Containers: 0Running: 0Paused: 0Stopped: 0Images: 1Server Version: 27.3.1Storage Driver: overlay2Backing Filesystem: xfsSupports d_type: trueUsing metacopy: falseNative Overlay Diff: trueuserxattr: falseLogging Driver: json-fileCgroup Driver: cgroupfsCgroup Version: 1Plugins:Volume: localNetwork: bridge host ipvlan macvlan null overlayLog: awslogs fluentd gcplogs gelf journald json-file local splunk syslogSwarm: inactiveRuntimes: io.containerd.runc.v2 runcDefault Runtime: runcInit Binary: docker-initcontainerd version: 7f7fdf5fed64eb6a7caf99b3e12efcf9d60e311crunc version: v1.1.14-0-g2c9f560init version: de40ad0Security Options:seccompProfile: builtinKernel Version: 3.10.0-1160.el7.x86_64Operating System: CentOS Linux 7 (Core)OSType: linuxArchitecture: x86_64CPUs: 2Total Memory: 7.777GiBName: node3ID: 11b2908d-4f1c-4d9f-9ea1-275e70e998f9Docker Root Dir: /var/lib/dockerDebug Mode: falseExperimental: falseInsecure Registries:127.0.0.0/8Registry Mirrors:https://proxy.1panel.live/https://docker.1panel.top/https://docker.1ms.run/https://docker.ketches.cn/https://docker.hpcloud.cloud/https://docker.1panel.live/http://mirrors.ustc.edu.cn/http://mirror.azure.cn/https://nrbewqda.mirror.aliyuncs.com/https://dmmxhzvq.mirror.aliyuncs.com/Live Restore Enabled: falseProduct License: Community EngineWARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled
[root@node3 ~]#

2 拉取镜像并运行容器

2.1 拉取镜像

# 执行如下命令，拉取最新版镜像
docker pull nginx:latest[root@node3 ~]# docker pull nginx:latest
latest: Pulling from library/nginx
7cf63256a31a: Downloading [===============================>                   ]  18.05MB/28.22MB
7cf63256a31a: Pull complete 
bf9acace214a: Pull complete 
513c3649bb14: Pull complete 
d014f92d532d: Pull complete 
9dd21ad5a4a6: Pull complete 
943ea0f0c2e4: Pull complete 
103f50cb3e9f: Pull complete 
Digest: sha256:9d6b58feebd2dbd3c56ab5853333d627cc6e281011cfd6050fa4bcf2072c9496
Status: Downloaded newer image for nginx:latest
docker.io/library/nginx:latest
[root@node3 ~]#

# 查看拉取的镜像
[root@node3 ~]# docker images|grep nginx
nginx                          latest    b52e0b094bc0   5 weeks ago   192MB
[root@node3 ~]#

2.2 试运行容器

[root@node3 ~]# docker run --name mynginx -p 8080:80 -d nginx 5545a43d8e06cf1290dd35b08de0d8ae8a850880ada02a96c893f570269d4bae 
[root@node3 ~]#

参数解释：

-d：后台模式运行容器

-p 8080:80：将主机的8080端口映射到容器的80端口

--name mynginx：指定容器名称为 mynginx

nginx：使用的镜像名称

2.3 验证运行结果

[root@node3 ~]# docker ps
CONTAINER ID   IMAGE     COMMAND                  CREATED          STATUS          PORTS                                     NAMES
5545a43d8e06   nginx     "/docker-entrypoint.…"   16 minutes ago   Up 16 minutes   0.0.0.0:8080->80/tcp, [::]:8080->80/tcp   mynginx
[root@node3 ~]#

3 封装并打包镜像

3.1 保存镜像为tar文件

docker save -o mynginx.tar nginx参数解释：
-o my-nginx.tar：指定输出文件名为mynginx.tar
nginx：要保存的镜像名称[root@node3 ~]# docker save -o mynginx.tar nginx
[root@node3 ~]# ls -lrht|grep mynginx.tar 
-rw-------  1 root    root    188M Mar 13 22:52 mynginx.tar
[root@node3 ~]#

3.2 压缩tar文件（可选）

# 如果文件太大，可以压缩tar文件，命令如下：
[root@node3 ~]# gzip mynginx.tar[root@node3 ~]# ls -lrht|grep mynginx.tar
-rw-------  1 root    root     68M Mar 13 22:52 mynginx.tar.gz
[root@node3 ~]#

3.3 分发镜像

# 将保存的进项分发到需要部署的主机上
[root@node3 ~]# scp mynginx.tar.gz root@192.168.10.30:/root/root@192.168.10.30's password: 
mynginx.tar.gz                                                                                                                                 100%   68MB  13.3MB/s   00:05    
[root@node3 ~]#

4 加载镜像

4.1 解压压缩包

[root@node1 ~]# gzip -d mynginx.tar.gz
[root@node1 ~]#ls |grep mynginx.tar
mynginx.tar
[root@node1 ~]#

4.2 加载镜像

[root@node1 ~]# docker load -i mynginx.tar
5f1ee22ffb5e: Loading layer [==================================================>]  77.84MB/77.84MB
c68632c455ae: Loading layer [==================================================>]  118.3MB/118.3MB
cabea05c000e: Loading layer [==================================================>]  3.584kB/3.584kB
791f0a07985c: Loading layer [==================================================>]  4.608kB/4.608kB
f6d5815f290e: Loading layer [==================================================>]   2.56kB/2.56kB
7d22e2347c12: Loading layer [==================================================>]   5.12kB/5.12kB
55e9644f21c3: Loading layer [==================================================>]  7.168kB/7.168kB
Loaded image: nginx:latest
[root@node1 ~]#

4.3 验证加载情况

[root@node1 ~]# docker images
REPOSITORY   TAG       IMAGE ID       CREATED       SIZE
nginx        latest    b52e0b094bc0   5 weeks ago   192MB
[root@node1 ~]#

4.4 运行容器

[root@node1 ~]# docker run --name mynginx -p 8080:80 -d nginx
702bffa6db25fb688a2c3d2ac5c9d657abc492e8978342fc71aab97c7174c513
[root@node1 ~]#

4.5 验证运行结果

[root@node1 ~]# docker ps
CONTAINER ID   IMAGE     COMMAND                  CREATED              STATUS              PORTS                                     NAMES
702bffa6db25   nginx     "/docker-entrypoint.…"   About a minute ago   Up About a minute   0.0.0.0:8080->80/tcp, [::]:8080->80/tcp   mynginx
[root@node1 ~]#