一行命令安裝docker和docker-compose(CentOS7)

想快速裝好docker和docker-compose ？那就隨本文用一次複製粘貼來完成安裝：

環境信息

1. 操做系統：<font color="blue">CentOS Linux release 7.7.1908 (Core</font>，
2. 操做帳號：root
3. Docker版本：當前最新版本：19.03.2
4. docker-compose版本：當前最新版本：1.24.1

安裝

執行如下命令(若非root帳號，請自行添加sudo)：

yum install -y yum-utils device-mapper-persistent-data lvm2 \
&& yum-config-manager \
    --add-repo \
    https://download.docker.com/linux/centos/docker-ce.repo \
&& yum install  -y docker-ce docker-ce-cli containerd.io \
&& systemctl start docker \
&& yum -y install epel-release \
&& yum -y install python-pip \
&& pip install --upgrade pip \
&& pip install docker-compose

等待幾分鐘，即完成docker和docker-compose的安裝

驗證

1. docker版本：

[root@centos7 ~]# docker version
Client: Docker Engine - Community
 Version:           19.03.2
 API version:       1.40
 Go version:        go1.12.8
 Git commit:        6a30dfc
 Built:             Thu Aug 29 05:28:55 2019
 OS/Arch:           linux/amd64
 Experimental:      false

Server: Docker Engine - Community
 Engine:
  Version:          19.03.2
  API version:      1.40 (minimum version 1.12)
  Go version:       go1.12.8
  Git commit:       6a30dfc
  Built:            Thu Aug 29 05:27:34 2019
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.2.6
  GitCommit:        894b81a4b802e4eb2a91d1ce216b8817763c29fb
 runc:
  Version:          1.0.0-rc8
  GitCommit:        425e105d5a03fabd737a126ad93d62a9eeede87f
 docker-init:
  Version:          0.18.0
  GitCommit:        fec3683

1. docker-compose版本：

[root@centos7 ~]# docker-compose version
docker-compose version 1.24.1, build 4667896
docker-py version: 3.7.3
CPython version: 2.7.5
OpenSSL version: OpenSSL 1.0.2k-fips  26 Jan 2017

1. 運行hello world：

[root@centos7 ~]# docker run --rm hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
1b930d010525: Pull complete 
Digest: sha256:b8ba256769a0ac28dd126d584e0a2011cd2877f3f76e093a7ae560f2a5301c00
Status: Downloaded newer image for 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/

操做完成，但願這一次複製粘貼能助您快速開啓docker之旅。