docker教程 安裝
準備工作
1.centos系統
2.yum
開始安裝
更新yum
[root@localhost ~]# yum update
中途會有一個或多個確認的提示,輸入y(yes首字母)繼續。
查找docker
待更新完畢之後,查看docker的列表
[root@localhost ~]# yum list docker
查詢的結果如下:
[root@localhost ~]# yum list docker
已加載插件:fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: mirror.jdcloud.com
* extras: mirrors.aliyun.com
* updates: mirror.jdcloud.com
可安裝的軟件包
docker.x86_64 2:1.13.1-103.git7f2769b.el7.centos extras
安裝docker
我們根據docker列表選擇需要安裝的軟件包docker.x86_64進行安裝
[root@localhost ~]# yum install docker.x86_64
安裝結果如下:
已安裝:
docker.x86_64 2:1.13.1-103.git7f2769b.el7.centos
作爲依賴被安裝:
PyYAML.x86_64 0:3.10-11.el7 atomic-registries.x86_64 1:1.22.1-29.gitb507039.el7
container-selinux.noarch 2:2.107-3.el7 container-storage-setup.noarch 0:0.11.0-2.git5eaf76c.el7
containers-common.x86_64 1:0.1.37-3.el7.centos docker-client.x86_64 2:1.13.1-103.git7f2769b.el7.centos
docker-common.x86_64 2:1.13.1-103.git7f2769b.el7.centos libyaml.x86_64 0:0.1.4-11.el7_0
oci-register-machine.x86_64 1:0-6.git2b44233.el7 oci-systemd-hook.x86_64 1:0.2.0-1.git05e6923.el7_6
oci-umount.x86_64 2:2.5-3.el7 python-pytoml.noarch 0:0.1.14-1.git7dea353.el7
subscription-manager-rhsm-certificates.x86_64 0:1.24.13-3.el7.centos
完畢!
啓動docker
[root@localhost ~]# systemctl start docker
查看版本
[root@localhost ~]# docker version
[root@localhost ~]# docker version
Client:
Version: 1.13.1
API version: 1.26
Package version: docker-1.13.1-103.git7f2769b.el7.centos.x86_64
Go version: go1.10.3
Git commit: 7f2769b/1.13.1
Built: Sun Sep 15 14:06:47 2019
OS/Arch: linux/amd64
Server:
Version: 1.13.1
API version: 1.26 (minimum version 1.12)
Package version: docker-1.13.1-103.git7f2769b.el7.centos.x86_64
Go version: go1.10.3
Git commit: 7f2769b/1.13.1
Built: Sun Sep 15 14:06:47 2019
OS/Arch: linux/amd64
Experimental: false
測試是否可用
[root@localhost ~]# docker run hello-world:latest
[root@localhost ~]# docker run hello-world:latest
Unable to find image 'hello-world:latest' locally
Trying to pull repository docker.io/library/hello-world ...
latest: Pulling from docker.io/library/hello-world
1b930d010525: Pull complete
Digest: sha256:c3b4ada4687bbaa170745b3e4dd8ac3f194ca95b2d0518b417fb47e5879d9b5f
Status: Downloaded newer image for docker.io/hello-world:latest
Hello from Docker!
This message shows that your installation appears to be working correctly.
To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
(amd64)
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.
To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash
Share images, automate workflows, and more with a free Docker ID:
https://hub.docker.com/
For more examples and ideas, visit:
https://docs.docker.com/get-started/