CentOS平台下的Docker安装与启动
1、参考
https://www.docker.com/docker-windows
https://yq.aliyun.com/ziliao/60630
1、安装docker
（1）搜索docker
[root@node3 ~]# yum search docker
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: mirrors.aliyun.com
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
========================================================================== N/S matched: docker ===========================================================================
cockpit-docker.x86_64 : Cockpit user interface for Docker containers
docker-client.x86_64 : Client side files for Docker
docker-client-latest.x86_64 : Client side files for Docker
docker-common.x86_64 : Common files for docker and docker-latest
docker-distribution.x86_64 : Docker toolset to pack, ship, store, and deliver content
docker-latest-logrotate.x86_64 : cron job to run logrotate on Docker containers
docker-latest-v1.10-migrator.x86_64 : Calculates SHA256 checksums for docker layer content
docker-logrotate.x86_64 : cron job to run logrotate on Docker containers
docker-lvm-plugin.x86_64 : Docker volume driver for lvm volumes
docker-python.x86_64 : An API client for docker written in Python
docker-registry.noarch : Registry server for Docker
docker-registry.x86_64 : Registry server for Docker
docker-v1.10-migrator.x86_64 : Calculates SHA256 checksums for docker layer content
python-docker-py.noarch : An API client for docker written in Python
python-docker-pycreds.noarch : Python bindings for the docker credentials store API
docker.x86_64 : Automates deployment of containerized applications
docker-devel.x86_64 : A golang registry for global request variables (source libraries)
docker-forward-journald.x86_64 : Forward stdin to journald
docker-latest.x86_64 : Automates deployment of containerized applications
docker-novolume-plugin.x86_64 : Block container starts with local volumes defined
docker-unit-test.x86_64 : Automates deployment of containerized applications - for running unit tests
oci-systemd-hook.x86_64 : OCI systemd hook for docker
oci-umount.x86_64 : OCI umount hook for docker
skopeo.x86_64 : Inspect Docker images and repositories on registries
Name and summary matches only, use "search all" for everything.（2）安装docker
[root@node3 ~]# yum install -y docker
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: mirrors.aliyun.com
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
Resolving Dependencies
--> Running transaction check
---> Package docker.x86_64 2:1.12.6-32.git88a4867.el7.centos will be installed
--> Processing Dependency: docker-common = 2:1.12.6-32.git88a4867.el7.centos for package: 2:docker-1.12.6-32.git88a4867.el7.centos.x86_64
....
....
---> Package systemd-libs.x86_64 0:219-30.el7_3.9 will be an update
---> Package systemd-python.x86_64 0:219-19.el7 will be updated
---> Package systemd-python.x86_64 0:219-30.el7_3.9 will be an update
---> Package systemd-sysv.x86_64 0:219-19.el7 will be updated
---> Package systemd-sysv.x86_64 0:219-30.el7_3.9 will be an update
--> Running transaction check
---> Package libgudev1.x86_64 0:219-19.el7 will be updated
---> Package libgudev1.x86_64 0:219-30.el7_3.9 will be an update
--> Finished Dependency Resolution
Dependencies Resolved
==========================================================================================================================================================================
Package Arch Version Repository Size
==========================================================================================================================================================================
Installing:
docker x86_64 2:1.12.6-32.git88a4867.el7.centos extras 14 M
Updating:
selinux-policy-targeted noarch 3.13.1-102.el7_3.16 updates 6.4 M
systemd x86_64 219-30.el7_3.9 updates 5.2 M
Installing for dependencies:
container-selinux noarch 2:2.19-2.1.el7 extras 28 k
docker-client x86_64 2:1.12.6-32.git88a4867.el7.centos extras 3.2 M
docker-common x86_64 2:1.12.6-32.git88a4867.el7.centos extras 77 k
oci-register-machine x86_64 1:0-3.11.gitdd0daef.el7 extras 1.0 M
oci-systemd-hook x86_64 1:0.1.7-4.gite533efa.el7 extras 30 k
skopeo-containers x86_64 1:0.1.20-2.el7 extras 7.8 k
Updating for dependencies:
libgudev1 x86_64 219-30.el7_3.9 updates 77 k
libselinux x86_64 2.5-6.el7 base 161 k
libselinux-devel x86_64 2.5-6.el7 base 186 k
libselinux-python x86_64 2.5-6.el7 base 234 k
libselinux-utils x86_64 2.5-6.el7 base 151 k
libsemanage x86_64 2.5-5.1.el7_3 updates 144 k
libsemanage-python x86_64 2.5-5.1.el7_3 updates 104 k
libsepol x86_64 2.5-6.el7 base 288 k
libsepol-devel x86_64 2.5-6.el7 base 74 k
policycoreutils x86_64 2.5-11.el7_3 updates 841 k
policycoreutils-python x86_64 2.5-11.el7_3 updates 445 k
selinux-policy noarch 3.13.1-102.el7_3.16 updates 414 k
setools-libs x86_64 3.3.8-1.1.el7 base 612 k
systemd-libs x86_64 219-30.el7_3.9 updates 369 k
systemd-python x86_64 219-30.el7_3.9 updates 110 k
systemd-sysv x86_64 219-30.el7_3.9 updates 64 k
Transaction Summary
==========================================================================================================================================================================
Install 1 Package (+ 6 Dependent packages)
Upgrade 2 Packages (+16 Dependent packages)
Total size: 34 M
Total download size: 33 M
Downloading packages:
Delta RPMs reduced 7.0 M of updates to 3.9 M (43% saved)
(1/18): policycoreutils-python-2.2.5-20.el7_2.5-11.el7_3.x86_64.drpm | 259 kB 00:00:00
(2/18): policycoreutils-2.2.5-20.el7_2.5-11.el7_3.x86_64.drpm | 433 kB 00:00:00
(3/18): systemd-libs-219-19.el7_219-30.el7_3.9.x86_64.drpm | 170 kB 00:00:00
(4/18): systemd-python-219-19.el7_219-30.el7_3.9.x86_64.drpm | 80 kB 00:00:00
(5/18): container-selinux-2.19-2.1.el7.noarch.rpm | 28 kB 00:00:00
(6/18): docker-client-1.12.6-32.git88a4867.el7.centos.x86_64.rpm | 3.2 MB 00:00:03
(7/18): docker-common-1.12.6-32.git88a4867.el7.centos.x86_64.rpm | 77 kB 00:00:00
(8/18): libgudev1-219-30.el7_3.9.x86_64.rpm | 77 kB 00:00:00
(9/18): libsemanage-2.5-5.1.el7_3.x86_64.rpm | 144 kB 00:00:00
(10/18): libsemanage-python-2.5-5.1.el7_3.x86_64.rpm | 104 kB 00:00:00
(11/18): systemd-219-19.el7_219-30.el7_3.9.x86_64.drpm | 3.0 MB 00:00:04
(12/18): oci-register-machine-0-3.11.gitdd0daef.el7.x86_64.rpm | 1.0 MB 00:00:00
(13/18): oci-systemd-hook-0.1.7-4.gite533efa.el7.x86_64.rpm | 30 kB 00:00:00
(14/18): skopeo-containers-0.1.20-2.el7.x86_64.rpm | 7.8 kB 00:00:00
(15/18): selinux-policy-3.13.1-102.el7_3.16.noarch.rpm | 414 kB 00:00:00
(16/18): systemd-sysv-219-30.el7_3.9.x86_64.rpm | 64 kB 00:00:00
(17/18): selinux-policy-targeted-3.13.1-102.el7_3.16.noarch.rpm | 6.4 MB 00:00:06
(18/18): docker-1.12.6-32.git88a4867.el7.centos.x86_64.rpm | 14 MB 00:00:14
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 2.0 MB/s | 30 MB 00:00:14
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Updating : libsepol-2.5-6.el7.x86_64 1/43
Updating : libselinux-2.5-6.el7.x86_64
....
.... 42/43
Verifying : policycoreutils-python-2.2.5-20.el7.x86_64 43/43
Installed:
docker.x86_64 2:1.12.6-32.git88a4867.el7.centos
Dependency Installed:
container-selinux.noarch 2:2.19-2.1.el7 docker-client.x86_64 2:1.12.6-32.git88a4867.el7.centos docker-common.x86_64 2:1.12.6-32.git88a4867.el7.centos
oci-register-machine.x86_64 1:0-3.11.gitdd0daef.el7 oci-systemd-hook.x86_64 1:0.1.7-4.gite533efa.el7 skopeo-containers.x86_64 1:0.1.20-2.el7
Updated:
selinux-policy-targeted.noarch 0:3.13.1-102.el7_3.16 systemd.x86_64 0:219-30.el7_3.9
Dependency Updated:
libgudev1.x86_64 0:219-30.el7_3.9 libselinux.x86_64 0:2.5-6.el7 libselinux-devel.x86_64 0:2.5-6.el7 libselinux-python.x86_64 0:2.5-6.el7
libselinux-utils.x86_64 0:2.5-6.el7 libsemanage.x86_64 0:2.5-5.1.el7_3 libsemanage-python.x86_64 0:2.5-5.1.el7_3 libsepol.x86_64 0:2.5-6.el7
libsepol-devel.x86_64 0:2.5-6.el7 policycoreutils.x86_64 0:2.5-11.el7_3 policycoreutils-python.x86_64 0:2.5-11.el7_3 selinux-policy.noarch 0:3.13.1-102.el7_3.16
setools-libs.x86_64 0:3.3.8-1.1.el7 systemd-libs.x86_64 0:219-30.el7_3.9 systemd-python.x86_64 0:219-30.el7_3.9 systemd-sysv.x86_64 0:219-30.el7_3.9
Complete!
[root@node3 ~]#
3、启动Docker
（1）启动命令
[root@node3 ~]# systemctl start docker（2）查看状态
[root@node3 ~]# systemctl status docker
● docker.service - Docker Application Container Engine
Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)
Active: active (running) since Mon 2017-08-14 14:34:05 CST; 4s ago
Docs: http://docs.docker.com
Main PID: 14321 (dockerd-current)
CGroup: /system.slice/docker.service
├─14321 /usr/bin/dockerd-current --add-runtime docker-runc=/usr/libexec/docker/docker-runc-current --default-runtime=docker-runc --exec-opt native.cgroupdri...
└─14335 /usr/bin/docker-containerd-current -l unix:///var/run/docker/libcontainerd/docker-containerd.sock --shim docker-containerd-shim --metrics-interval=0...
Aug 14 14:34:05 node3 dockerd-current[14321]: time="2017-08-14T14:34:05.414920983+08:00" level=info msg="Graph migration to content-addressability took 0.00 seconds"
Aug 14 14:34:05 node3 dockerd-current[14321]: time="2017-08-14T14:34:05.415711385+08:00" level=warning msg="mountpoint for pids not found"
Aug 14 14:34:05 node3 dockerd-current[14321]: time="2017-08-14T14:34:05.416487662+08:00" level=info msg="Loading containers: start."
Aug 14 14:34:05 node3 dockerd-current[14321]: time="2017-08-14T14:34:05.429707075+08:00" level=info msg="Firewalld running: false"
Aug 14 14:34:05 node3 dockerd-current[14321]: time="2017-08-14T14:34:05.638641730+08:00" level=info msg="Default bridge (docker0) is assigned with an IP addr...P address"
Aug 14 14:34:05 node3 dockerd-current[14321]: time="2017-08-14T14:34:05.780057349+08:00" level=info msg="Loading containers: done."
Aug 14 14:34:05 node3 dockerd-current[14321]: time="2017-08-14T14:34:05.780334779+08:00" level=info msg="Daemon has completed initialization"
Aug 14 14:34:05 node3 dockerd-current[14321]: time="2017-08-14T14:34:05.780367237+08:00" level=info msg="Docker daemon" commit="88a4867/1.12.6" graphdriver=d...ion=1.12.6
Aug 14 14:34:05 node3 dockerd-current[14321]: time="2017-08-14T14:34:05.790544331+08:00" level=info msg="API listen on /var/run/docker.sock"
Aug 14 14:34:05 node3 systemd[1]: Started Docker Application Container Engine.
Hint: Some lines were ellipsized, use -l to show in full.
[root@node3 ~]#
（3）查看版本
[root@node3 ~]# docker version
Client:
Version: 1.12.6
API version: 1.24
Package version: docker-1.12.6-32.git88a4867.el7.centos.x86_64
Go version: go1.7.4
Git commit: 88a4867/1.12.6
Built: Mon Jul 3 16:02:02 2017
OS/Arch: linux/amd64
Server:
Version: 1.12.6
API version: 1.24
Package version: docker-1.12.6-32.git88a4867.el7.centos.x86_64
Go version: go1.7.4
Git commit: 88a4867/1.12.6
Built: Mon Jul 3 16:02:02 2017
OS/Arch: linux/amd64
[root@node3 ~]#（4）查看docker信息
[root@node3 ~]# docker info
Containers: 0
Running: 0
Paused: 0
Stopped: 0
Images: 0
Server Version: 1.12.6
Storage Driver: devicemapper
Pool Name: docker-8:1-268507886-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: 23.1 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: false
Deferred Deletion Enabled: false
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: null overlay host bridge
Swarm: inactive
Runtimes: docker-runc runc
Default Runtime: docker-runc
Security Options: seccomp selinux
Kernel Version: 3.10.0-327.el7.x86_64
Operating System: CentOS Linux 7 (Core)
OSType: linux
Architecture: x86_64
Number of Docker Hooks: 2
CPUs: 32
Total Memory: 125.8 GiB
Name: node3
ID: VGL7:LAHR:ETDZ:M7A7:AGJG:HHLV:H4AR:3DY4:3DEA:ZHK4:4DI6:UUZG
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)
[root@node3 ~]#