Centos安装docker显示 No Package Docker-Ce Available

查看当前系统内核
查看方式

uname -r

显示如下

1 2	[root@localhost home]# uname -r 3.10.0-957.el7.x86_64

重要提示： docker内核版本必须是3.10+以上的版本

卸载老版本的 docker 及其相关依赖

1	yum remove docker docker-common container-selinux docker-selinux docker-engine

[root@localhost home]# yum remove docker docker-common container-selinux docker-selinux docker-engine
Loaded plugins: fastestmirror, langpacks
No Match for argument: docker
No Match for argument: docker-common
No Match for argument: container-selinux
No Match for argument: docker-selinux
No Match for argument: docker-engine
No Packages marked for removal

2.更新yum

1	yum update

之后需要一段时间更新

3.安装 yum-utils，它提供了 yum-config-manager，可用来管理yum源

1	yum install -y yum-utils

[root@localhost home]#  yum install -y yum-utils
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
 * base: mirrors.huaweicloud.com
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
Package yum-utils-1.1.31-54.el7_8.noarch already installed and latest version
Nothing to do

4. 添加yum源

1	yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

[root@localhost home]# yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
Loaded plugins: fastestmirror, langpacks
adding repo from: http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
grabbing file http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.repo
repo saved to /etc/yum.repos.d/docker-ce.repo

5. 更新索引

1	yum makecache fast

[root@localhost home]# yum makecache fast
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
 * base: mirrors.huaweicloud.com
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
base                                                                                                               | 3.6 kB  00:00:00     
docker-ce-stable                                                                                                   | 3.5 kB  00:00:00     
extras                                                                                                             | 2.9 kB  00:00:00     
updates                                                                                                            | 2.9 kB  00:00:00     
(1/2): docker-ce-stable/x86_64/updateinfo                                                                          |   55 B  00:00:00     
(2/2): docker-ce-stable/x86_64/primary_db                                                                          |  46 kB  00:00:00     
Metadata Cache Created

6. 安装 docker-ce

1	yum install -y docker-ce

之后需要一段时间安装

7. 启动 docker

systemctl start docker

8. 验证是否安装成功

1	docker info

[root@localhost home]# docker info
Client:
 Debug Mode: false

Server:
 Containers: 0
  Running: 0
  Paused: 0
  Stopped: 0
 Images: 0
 Server Version: 19.03.13
 Storage Driver: overlay2
  Backing Filesystem: xfs
  Supports d_type: true
  Native Overlay Diff: true
 Logging Driver: json-file
 Cgroup Driver: cgroupfs
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
 Swarm: inactive
 Runtimes: runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: 8fba4e9a7d01810a393d5d25a3621dc101981175
 runc version: dc9208a3303feef5b3839f4323d9beb36df0a9dd
 init version: fec3683
 Security Options:
  seccomp
   Profile: default
 Kernel Version: 3.10.0-957.el7.x86_64
 Operating System: CentOS Linux 7 (Core)
 OSType: linux
 Architecture: x86_64
 CPUs: 4
 Total Memory: 1.777GiB
 Name: localhost.localdomain
 ID: XIEA:KTDX:QOJ4:QTK7:WBKJ:IN2C:336V:UKI5:QZH3:TCOM:7KGM:T3OM
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 Registry: https://index.docker.io/v1/
 Labels:
 Experimental: false
 Insecure Registries:
  127.0.0.0/8
 Live Restore Enabled: false

安装docker-compose

1 安装epel源

1	yum install -y epel-release

2 安装docker-compose

1	yum install -y docker-compose