docker问题集合 | 易学教程

安装docker的时候遇到以下问题

[root@sm-docker249 yum.repos.d]# yum install docker-ce docker-ce-cli containerd.io
Loaded plugins: fastestmirror, langpacks
docker-ce-nightly                                   | 3.5 kB     00:00     
docker-ce-stable                                    | 3.5 kB     00:00     
docker-ce-test                                      | 3.5 kB     00:00     
(1/4): docker-ce-test/x86_64/primary_db               | 115 kB   00:00     
(2/4): docker-ce-nightly/x86_64/updateinfo            |   55 B   00:00     
(3/4): docker-ce-test/x86_64/updateinfo               |   55 B   00:00     
(4/4): docker-ce-nightly/x86_64/primary_db            | 166 kB   00:00     
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package containerd.io.x86_64 0:1.2.13-3.2.el7 will be installed
--> Processing Dependency: container-selinux >= 2:2.74 for package: containerd.io-1.2.13-3.2.el7.x86_64
---> Package docker-ce.x86_64 3:19.03.9-3.el7 will be installed
--> Processing Dependency: container-selinux >= 2:2.74 for package: 3:docker-ce-19.03.9-3.el7.x86_64
---> Package docker-ce-cli.x86_64 1:19.03.9-3.el7 will be installed
--> Finished Dependency Resolution
Error: Package: 3:docker-ce-19.03.9-3.el7.x86_64 (docker-ce-stable)
           Requires: container-selinux >= 2:2.74
Error: Package: containerd.io-1.2.13-3.2.el7.x86_64 (docker-ce-nightly)
           Requires: container-selinux >= 2:2.74
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles –nodigest

提示需要container-selinux

解决办法:

遇到了contain-SElinux的情况

所以我们只需要把他补上就行了！

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

yum install epel-release -y

yum install container-selinux -y #安装最新的contain-selinux

然后就可以下载成功了

-------------------------------------------------分割线----------------------------------------------------

docker安装好之后测试hello-world镜像提示以下问题

[root@sm-docker249 yum.repos.d]# docker run hello-world
Unable to find image 'hello-world:latest' locally
docker: Error response from daemon: Get https://registry-1.docker.io/v2/: dial tcp 18.232.227.119:443: connect: connection refused.
See 'docker run --help'.

这里因为是内网服务器,所以我们做两个动作(ps:第二步只有内网服务器才需要)

1.切换docker源为国内阿里云的

2.设置docker代理

1.新增文件

vim  etc/docker/daemon.json



{

"registry-mirrors": ["https://alzgoonw.mirror.aliyuncs.com"]

}

然后重启docker

systemctl restart docker

2.设置docker代理

创建目录

mkdir /etc/systemd/system/docker.service.d

创建文件

vim /etc/systemd/system/docker.service.d/http-proxy.conf

配置http-proxy.conf文件增加以下内容

[Service]

Environment="HTTP_PROXY=http://proxy.ip.com:80"



Environment="NO_PROXY=localhost,127.0.0.0/8,docker-registry.somecorporation.com,11.11.225.50"

注意：一定要将私库地址添加到no_proxy里，否则，无法向私库里面push镜像。

daemon重新reload 并重启docker

systemctl daemon-reload

systemctl restart docker



检查变量是否加载

systemctl show docker --property Environment

来源：oschina

链接：https://my.oschina.net/825487559/blog/4287466

标签

selinux

Containerd