centos8飞行驾驶舱和docker安装

零、先解决cenos8的网络（systemctl restart network.service已被废弃）

1、# vim /etc/sysconfig/network-scripts/ifcfg-ens33

2、# nmcli c reload ens33

3、# nmcli c up ens33

一、安装飞行驾驶舱

#yum install  -y *cockpit*

#systemctl start cockpit

# systemctl enable --now cockpit.socket

浏览器+ip+:9090

 二、安装docker

[root@localhost ~]#  yum install -y docker-ce
Updating Subscription Management repositories.
Unable to read consumer identity
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
Docker CE Stable - x86_64                        11 kB/s |  20 kB     00:01    
错误：
 问题: package docker-ce-3:19.03.4-3.el7.x86_64 requires containerd.io >= 1.2.2-3, but none of the providers can be installed
  - cannot install the best candidate for the job
  - package containerd.io-1.2.10-3.2.el7.x86_64 is excluded
  - package containerd.io-1.2.2-3.3.el7.x86_64 is excluded
  - package containerd.io-1.2.2-3.el7.x86_64 is excluded
  - package containerd.io-1.2.4-3.1.el7.x86_64 is excluded
  - package containerd.io-1.2.5-3.1.el7.x86_64 is excluded
  - package containerd.io-1.2.6-3.3.el7.x86_64 is excluded
(try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)
解决办法：

下载docker rpm地址

https://download.docker.com/linux/centos/7/x86_64/stable/Packages/

[root@localhost ~]# rpm -ivh containerd.io-1.2.4-3.1.el7.x86_64.rpm
警告：containerd.io-1.2.4-3.1.el7.x86_64.rpm: 头V4 RSA/SHA512 Signature, 密钥 ID 621e9f35: NOKEY
错误：依赖检测失败：
    runc 与 containerd.io-1.2.4-3.1.el7.x86_64 冲突
    runc 被 containerd.io-1.2.4-3.1.el7.x86_64 取代
[root@localhost ~]# yum erase runc  （erase等价与remove，删除runc）

。。。。。

[root@localhost ~]# rpm -ivh containerd.io-1.2.4-3.1.el7.x86_64.rpm

[root@localhost ~]#  systemctl start docker.service
[root@localhost ~]# systemctl enable docker.service
Created symlink /etc/systemd/system/multi-user.target.wants/docker.service → /usr/lib/systemd/system/docker.service.
[root@localhost ~]#  docker version
Client: Docker Engine - Community
 Version:           19.03.4
。。。。。
Server: Docker Engine - Community
。。。。。。
[root@localhost ~]# docker pull daocloud.io/library/nginx:1.7.9  （拉取镜像）

1.7.9: Pulling from library/nginx
a3ed95caeb02: Pull complete
6f5424ebd796: Pull complete
d15444df170a: Pull complete
e83f073daa67: Pull complete
a4d93e421023: Pull complete
084adbca2647: Pull complete
c9cec474c523: Pull complete
Digest: sha256:2204e6cc1bbcc3c5587aaada2c59819599847f1dbe5876dc21eba6764aa795ef
Status: Downloaded newer image for daocloud.io/library/nginx:1.7.9
daocloud.io/library/nginx:1.7.9

[root@localhost ~]# docker image list （查看镜像）
REPOSITORY                  TAG                 IMAGE ID            CREATED             SIZE
daocloud.io/library/nginx   1.7.9               1e99d807        4 years ago         91.7MB
[root@localhost ~]# docker   run   -it     /bin/bash （run为老命令）
root@f13c299e8ea1:/# ls
bin   dev  home  lib64    mnt  proc  run     selinux  sys  usr
boot  etc  lib     media    opt  root  sbin  srv      tmp  var
三、docker官方加速器
curl -sSL https://get.daocloud.io/daotools/set_mirror.sh | sh -s http://f1361db2.m.daocloud.io

该脚本可以将 --registry-mirror 加入到你的 Docker 配置文件 /etc/docker/daemon.json 中。适用于 Ubuntu14.04、Debian、CentOS6 、CentOS7、Fedora、Arch Linux、openSUSE Leap 42.1，其他版本可能有细微不同。

四、centos7安装docker

附加ubantu下的docker安装https://www.runoob.com/docker/ubuntu-docker-install.html

1、设置阿里云镜像源

wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -O /etc/yum.repos.d/


2、安装 Docker-CE

yum install docker-ce


3、报错

--> Processing Conflict: 1:docker-ce-cli-18.09.6-3.el7.x86_64 conflicts docker
--> Processing Conflict: 1:docker-ce-cli-18.09.6-3.el7.x86_64 conflicts docker-io
--> Processing Conflict: 3:docker-ce-18.09.6-3.el7.x86_64 conflicts docker
--> Processing Conflict: 3:docker-ce-18.09.6-3.el7.x86_64 conflicts docker-io
--> Finished Dependency Resolution
Error: docker-ce conflicts with 2:docker-1.13.1-96.gitb2f74b2.el7.centos.x86_64
Error: docker-ce-cli conflicts with 2:docker-1.13.1-96.gitb2f74b2.el7.centos.x86_64
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest

4、解决办法

# 1、查看安装过的docker：
yum list installed | grep docker
docker.x86_64                           2:1.13.1-74.git6e3bb8e.el7.centos
docker-client.x86_64                    2:1.13.1-74.git6e3bb8e.el7.centos
docker-common.x86_64                    2:1.13.1-74.git6e3bb8e.el7.centos
# 2、卸载docker：
#yum remove -y docker-ce.x86_64 docker-client.x86_64 docker-common.x86_64
# 3、删除容器镜像：
#rm -rf /var/lib/docker
# 4、 重新安装docker
#yum install docker-ce

5、启动docker

# 开机自启
#systemctl enable docker
# 启动docker服务
#systemctl start docker

6、添加docker用户组（可选）

# 1. 建立 Docker 用户组
# groupadd docker
# 2.添加当前用户到 docker 组
#usermod -aG docker $USER