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欧拉20.03LTS_SP3安装docker

随着时间车轮往前滚滚，Centos-7正逐渐的走下神坛，国内开源操作系统蓬勃发展，跟上时代的步伐，先把docker在欧拉上安装起来。

使用欧拉自带库非常容易安装，但是相对版本比较旧：18.09。还有就是，使用docker官网最新版，可以使用centos-8版本的库来进行安装。

这里两种方式都试了一下，关键步骤罗列如下：

欧拉自带

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[root@localhost ~]# cat /etc/yum.repos.d/openEuler.repo   
[root@localhost ~]# yum search docker 
[root@localhost ~]# yum list | grep docker 
docker-engine.x86_64                                    18.09.0-206.oe1                           OS        

# 默认已经disabled
[root@localhost ~]# getenforce 
Disabled
[root@localhost ~]# cat /etc/sysconfig/selinux

# 安装
[root@localhost ~]# yum install docker
Last metadata expiration check: 1:22:48 ago on Thu 13 Jan 2022 10:19:38 AM CST.
Dependencies resolved.
================================================================================================================================================================
 Package                                   Architecture                       Version                                      Repository                      Size
================================================================================================================================================================
Installing:
 docker-engine                             x86_64                             18.09.0-206.oe1                              OS                              45 M
Installing dependencies:
 libcgroup                                 x86_64                             0.42.2-1.oe1                                 OS                              96 k

Transaction Summary
================================================================================================================================================================
Install  2 Packages

[root@localhost ~]# docker version 
Client:
 Version:           18.09.0
 EulerVersion:      18.09.0.206
 API version:       1.39
 Go version:        go1.15.7
 Git commit:        e4c0fb8
 Built:             Fri Dec 31 21:47:09 2021
 OS/Arch:           linux/amd64
 Experimental:      false

Server:
 Engine:
  Version:          18.09.0
  EulerVersion:     18.09.0.206
  API version:      1.39 (minimum version 1.12)
  Go version:       go1.15.7
  Git commit:       e4c0fb8
  Built:            Fri Dec 31 21:46:37 2021
  OS/Arch:          linux/amd64
  Experimental:     false

[root@localhost ~]# docker ps -a 
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

安装最新版

安装包repo的国内源

  • aliyun源：
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dnf config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
  • huawei源：
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sudo yum-config-manager \
    --add-repo \
    https://repo.huaweicloud.com/docker-ce/linux/centos/docker-ce.repo
sudo sed -i 's+download.docker.com+repo.huaweicloud.com/docker-ce+' /etc/yum.repos.d/docker-ce.repo

问题1：$releasever

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[root@localhost ~]# yum search docker 
Docker CE Stable - x86_64                                                                                                       240  B/s | 394  B     00:01    
Errors during downloading metadata for repository 'docker-ce-stable':
  - Status code: 404 for https://download.docker.com/linux/centos/20.03LTS_SP3/x86_64/stable/repodata/repomd.xml (IP: 13.224.160.26)
Error: Failed to download metadata for repo 'docker-ce-stable': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried

解决：

跟centos的对不上，直接用centos-8的版本，把 $releasever 改成 8 :

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[root@localhost ~]# cat /etc/os-release 
NAME="openEuler"
VERSION="20.03 (LTS-SP3)"
ID="openEuler"
VERSION_ID="20.03"
PRETTY_NAME="openEuler 20.03 (LTS-SP3)"
ANSI_COLOR="0;31"

[root@localhost ~]# arch
x86_64


# 修改release-version版本为8：
vi /etc/yum.repos.d/docker-ce.repo 
:%s/$releasever/8/g

问题2：Base依赖

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  - cannot install the best candidate for the job
  - nothing provides fuse-overlayfs >= 0.7 needed by docker-ce-rootless-extras-20.10.0-3.el8.x86_64
  - nothing provides slirp4netns >= 0.4 needed by docker-ce-rootless-extras-20.10.0-3.el8.x86_64

解决：

添加centos-base库，同样替换成centos-8的版本。

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wget -O /etc/yum.repos.d/CentOS-Base.repo https://repo.huaweicloud.com/repository/conf/CentOS-8-reg.repo
[root@localhost ~]# vi /etc/yum.repos.d/CentOS-Base.repo 
:%s/$releasever/8/g

正式安装

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[root@localhost ~]# yum install docker-ce docker-ce-cli containerd.io
CentOS-8 - Base - repo.huaweicloud.com                                                                                          583 kB/s | 4.6 MB     00:08    
CentOS-8 - AppStream - repo.huaweicloud.com                                                                                     565 kB/s | 8.4 MB     00:15    
CentOS-8 - PowerTools - repo.huaweicloud.com                                                                                    626 kB/s | 2.3 MB     00:03    
CentOS-8 - Extras - repo.huaweicloud.com                                                                                         43 kB/s |  10 kB     00:00    
Dependencies resolved.
================================================================================================================================================================
 Package                                  Architecture          Version                                                   Repository                       Size
================================================================================================================================================================
Installing:
 containerd.io                            x86_64                1.4.12-3.1.el8                                            docker-ce-stable                 28 M
 docker-ce                                x86_64                3:20.10.12-3.el8                                          docker-ce-stable                 22 M
 docker-ce-cli                            x86_64                1:20.10.12-3.el8                                          docker-ce-stable                 30 M
Upgrading:
 selinux-policy                           noarch                3.14.3-80.el8_5.2                                         BaseOS                          636 k
 selinux-policy-targeted                  noarch                3.14.3-80.el8_5.2                                         BaseOS                           15 M
Installing dependencies:
 container-selinux                        noarch                2:2.167.0-1.module_el8.5.0+911+f19012f9                   AppStream                        54 k
 docker-ce-rootless-extras                x86_64                20.10.12-3.el8                                            docker-ce-stable                4.6 M
 docker-scan-plugin                       x86_64                0.12.0-3.el8                                              docker-ce-stable                3.7 M
 fuse-overlayfs                           x86_64                1.7.1-1.module_el8.5.0+890+6b136101                       AppStream                        73 k
 fuse3                                    x86_64                3.9.2-8.oe1                                               OS                              112 k
 libcgroup                                x86_64                0.42.2-1.oe1                                              OS                               96 k
 libslirp                                 x86_64                4.4.0-1.module_el8.5.0+890+6b136101                       AppStream                        70 k
 slirp4netns                              x86_64                1.1.8-1.module_el8.5.0+890+6b136101                       AppStream                        51 k
Installing weak dependencies:
 fuse3-help                               x86_64                3.9.2-8.oe1                                               OS                               14 k
Enabling module streams:
 container-tools                                                rhel8                                                                                          

Transaction Summary
================================================================================================================================================================
Install  12 Packages
Upgrade   2 Packages

Total download size: 105 M

使用

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[root@localhost ~]# docker version
Client: Docker Engine - Community
 Version:           20.10.12
 API version:       1.41
 Go version:        go1.16.12
 Git commit:        e91ed57
 Built:             Mon Dec 13 11:45:22 2021
 OS/Arch:           linux/amd64
 Context:           default
 Experimental:      true

Server: Docker Engine - Community
 Engine:
  Version:          20.10.12
  API version:      1.41 (minimum version 1.12)
  Go version:       go1.16.12
  Git commit:       459d0df
  Built:            Mon Dec 13 11:43:44 2021
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          1.4.12
  GitCommit:        7b11cfaabd73bb80907dd23182b9347b4245eb5d
 runc:
  Version:          1.0.2
  GitCommit:        v1.0.2-0-g52b36a2
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

[root@localhost ~]# docker ps -a 
CONTAINER ID   IMAGE     COMMAND   CREATED   STATUS    PORTS     NAMES

[root@localhost ~]# docker pull centos:7
7: Pulling from library/centos
2d473b07cdd5: Pull complete 
Digest: sha256:9d4bcbbb213dfd745b58be38b13b996ebb5ac315fe75711bd618426a630e0987
Status: Downloaded newer image for centos:7
docker.io/library/centos:7
[root@localhost ~]# 
[root@localhost ~]# docker images 
REPOSITORY   TAG       IMAGE ID       CREATED        SIZE
centos       7         eeb6ee3f44bd   3 months ago   204MB

[root@localhost ~]# docker run --rm centos:7 hostname 
3c7a047ec95e
[root@localhost ~]# docker run --rm centos:7 date 
Thu Jan 13 03:33:12 UTC 2022

docker镜像加速

添加镜像配置：

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# https://docker.mirrors.ustc.edu.cn/
# https://hub-mirror.c.163.com
# https://reg-mirror.qiniu.com
[root@localhost ~]# cat /etc/docker/daemon.json
{
"registry-mirrors":["https://reg-mirror.qiniu.com/"]
}

[root@localhost ~]# service docker restart 
Redirecting to /bin/systemctl restart docker.service
[root@localhost ~]# docker info 
Registry Mirrors:
 https://reg-mirror.qiniu.com/

运行一个hello-world看看速度：

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[root@localhost ~]# docker run hello-world 
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
2db29710123e: Pull complete 
Digest: sha256:975f4b14f326b05db86e16de00144f9c12257553bba9484fed41f9b6f2257800
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/

–END

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