CentOS7 部署docker
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1.docker安装 CentOS7 yum install epel-release -y
yum install docker -y
[[email protected] ~] # docker version
Client: Version: 1.12.6
API version: 1.24
Package version: docker-1.12.6-61.git85d7426.el7.centos.x86_64
Go version: go1.8.3
Git commit: 85d7426 /1 .12.6
Built: Tue Oct 24 15:40:21 2017
OS /Arch : linux /amd64
Server: Version: 1.12.6
API version: 1.24
Package version: docker-1.12.6-61.git85d7426.el7.centos.x86_64
Go version: go1.8.3
Git commit: 85d7426 /1 .12.6
Built: Tue Oct 24 15:40:21 2017
OS /Arch : linux /amd64
[[email protected] ~] #
[[email protected] ~] # docker info
Containers: 0 Running: 0
Paused: 0
Stopped: 0
Images: 0 Server Version: 1.12.6 Storage Driver: devicemapper Pool Name: docker-253:0-270443527-pool
Pool Blocksize: 65.54 kB
Base Device Size: 10.74 GB
Backing Filesystem: xfs
Data file : /dev/loop0
Metadata file : /dev/loop1
Data Space Used: 11.8 MB
Data Space Total: 107.4 GB
Data Space Available: 102.8 GB
Metadata Space Used: 581.6 kB
Metadata Space Total: 2.147 GB
Metadata Space Available: 2.147 GB
Thin Pool Minimum Free Space: 10.74 GB
Udev Sync Supported: true
Deferred Removal Enabled: true
Deferred Deletion Enabled: true
Deferred Deleted Device Count: 0
Data loop file : /var/lib/docker/devicemapper/devicemapper/data
WARNING: Usage of loopback devices is strongly discouraged for production use. Use `--storage-opt dm.thinpooldev` to specify a custom block storage device.
Metadata loop file : /var/lib/docker/devicemapper/devicemapper/metadata
Library Version: 1.02.107-RHEL7 (2015-10-14)
Logging Driver: journald Cgroup Driver: systemd Plugins: Volume: local
Network: host bridge overlay null
Swarm: inactive Runtimes: docker-runc runc Default Runtime: docker-runc Security Options: seccomp Kernel Version: 3.10.0-327.el7.x86_64 Operating System: CentOS Linux 7 (Core) OSType: linux Architecture: x86_64 Number of Docker Hooks: 3 CPUs: 2 Total Memory: 1.954 GiB Name: localhost.localdomain ID: 7NNL:RVYC:M6QY:CP2P:5SNV:3N25:U45I:TUWG:Y4NK:7H4R:CN2B:3E67 Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https: //index .docker.io /v1/
WARNING: bridge-nf-call-iptables is disabled WARNING: bridge-nf-call-ip6tables is disabled Insecure Registries: 127.0.0.0 /8
Registries: docker.io (secure) CentOS6 yum install epel-release -y
yum install lxc libcgroup device-map* -y
yum install docker-io -y
[[email protected] ~] # docker version
Client version: 1.7.1 Client API version: 1.19 Go version (client): go1.4.2 Git commit (client): 786b29d /1 .7.1
OS /Arch (client): linux /amd64
Server version: 1.7.1 Server API version: 1.19 Go version (server): go1.4.2 Git commit (server): 786b29d /1 .7.1
OS /Arch (server): linux /amd64
[[email protected] ~] #
[[email protected] ~] # docker info
Containers: 0 Images: 0 Storage Driver: devicemapper Pool Name: docker-253:0-130626-pool
Pool Blocksize: 65.54 kB
Backing Filesystem: extfs
Data file : /dev/loop0
Metadata file : /dev/loop1
Data Space Used: 305.7 MB
Data Space Total: 107.4 GB
Data Space Available: 11.1 GB
Metadata Space Used: 729.1 kB
Metadata Space Total: 2.147 GB
Metadata Space Available: 2.147 GB
Udev Sync Supported: true
Deferred Removal Enabled: false
Data loop file : /var/lib/docker/devicemapper/devicemapper/data
Metadata loop file : /var/lib/docker/devicemapper/devicemapper/metadata
Library Version: 1.02.117-RHEL6 (2016-12-13)
Execution Driver: native-0.2 Logging Driver: json- file
Kernel Version: 2.6.32-431.el6.x86_64 Operating System: <unknown> CPUs: 1 Total Memory: 1.834 GiB Name: localhost.localdomain ID: SKZZ:TYST:LUEG:N66O:364P:7YRG:GQ3W:ODYR:G476:JSHB:I2HF:3A5W 说明:docker 默认的存储驱动类型为devicemapper,docker-ce 默认的存储驱动类型为overlay2。 2.搜索并下载nginx容器 [[email protected] ~] # docker search nginx
[[email protected] ~] # docker pull docker.io/nginx
3.将容器的80端映射到本机的8080 [[email protected] ~] # docker run --name=nginx -itd -p8080:80 docker.io/nginx bash
或者 [[email protected] ~] # docker run --name nginx -itd -p8080:80 docker.io/nginx /bin/bash
或者 [[email protected] ~] # docker run --name=nginx -itd -p8080:80 docker.io/nginx
注:--privileged 给予管理员权限,--restart=always 容器随docker宿主机的启动而启动;CentOS7安装服务器后若使用systemctl工具启动创建容器时需要执行 /usr/sbin/init 或 /sbin/init 命令。
4.查看docker容器进程 [[email protected] ~] # docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 26ae21c8bddd docker.io /nginx "bash" 5 seconds ago Up 4 seconds 0.0.0.0:8080->80 /tcp nginx
5.查看docker容器IP地址 [[email protected] ~] # docker inspect 0a9db4be695b |grep -i ip
"HostIp" : "" ,
"IpcMode" : "" ,
"LinkLocalIPv6Address" : "" ,
"LinkLocalIPv6PrefixLen" : 0,
"HostIp" : "0.0.0.0" ,
"SecondaryIPAddresses" : null,
"SecondaryIPv6Addresses" : null,
"GlobalIPv6Address" : "" ,
"GlobalIPv6PrefixLen" : 0,
"IPAddress" : "172.17.0.2" ,
"IPPrefixLen" : 16,
"IPv6Gateway" : "" ,
"IPAMConfig" : null,
"IPAddress" : "172.17.0.2" ,
"IPPrefixLen" : 16,
"IPv6Gateway" : "" ,
"GlobalIPv6Address" : "" ,
"GlobalIPv6PrefixLen" : 0,
[[email protected] ~] #
6.浏览器访问测试: http: //IP :8080
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7.登录进入容器中,更改默认的测试页面内容 [[email protected] ~] # docker exec -it 0a9db4be695b /bin/bash
[email protected]:/ # cd /usr/share/nginx/html/
50x.html index.html exit [[email protected] ~] #
8.浏览器访问测试: http: //IP :8080
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本文转自 dengaosky 51CTO博客,原文链接:http://blog.51cto.com/dengaosky/2045168,如需转载请自行联系原作者