安装docker
CentOS
$ sudo yum install -y yum-utils device-mapper-persistent-data lvm2
$ sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
$ sudo yum install -y docker-ce
$ sudo systemctl enable docker
$ sudo systemctl start docker
Debian
$ sudo apt-get install apt-transport-https ca-certificates curl gnupg2 software-properties-common
$ curl -fsSL https://download.docker.com/linux/debian/gpg | sudo apt-key add -
$ sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/debian $(lsb_release -cs) stable"
$ sudo apt-get update
$ sudo apt-get install docker-ce
$ sudo systemctl enable docker
$ sudo systemctl start docker
Fedora
$ sudo dnf -y install dnf-plugins-core
$ sudo dnf config-manager --add-repo https://download.docker.com/linux/fedora/docker-ce.repo
$ sudo dnf install docker-ce
$ sudo systemctl enable docker
$ sudo systemctl start docker
Ubuntu
$ sudo apt-get install apt-transport-https ca-certificates curl software-properties-common
$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
$ sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
$ sudo apt-get update
$ sudo apt-get install docker-ce
$ sudo systemctl enable docker
$ sudo systemctl start docker
常见问题
[elink@iZm5e9xpea3e486br8p7g3Z ~]$ sudo yum install -y docker-ce
CentOS-8 - AppStream 125 kB/s | 4.3 kB 00:00
CentOS-8 - Base 91 kB/s | 3.8 kB 00:00
CentOS-8 - Extras 30 kB/s | 1.5 kB 00:00
Extra Packages for Enterprise Linux 8 - x86_64 134 kB/s | 4.7 kB 00:00
Docker CE Stable - x86_64 13 kB/s | 22 kB 00:01
错误：
问题: package docker-ce-3:19.03.8-3.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-1.2.13-3.1.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
(尝试添加 '--skip-broken' 来跳过无法安装的软件包 或 '--nobest' 来不只使用最佳选择的软件包)
安装新版的containerd.io软件包
containerd.io软件包下载地址：download.docker.com/linux/cento…
[root@localhost ~]# yum -y install containerd.io-1.2.6-3.3.el7.x86_64.rpm //升级containerd.io软件包
安装完成后重新安装Docker
修改docker默认路径
sudo vim /etc/docker/daemon.json
{
"registry-mirrors": ["https://5typxqwj.mirror.aliyuncs.com"],
"graph":"/mnt/docker/registry"
}
[elink@iZm5e9xpea3e486br8p7g3Z docker]$ sudo vim /etc/docker/daemon.json
[elink@iZm5e9xpea3e486br8p7g3Z docker]$ sudo systemctl daemon-reload
[elink@iZm5e9xpea3e486br8p7g3Z docker]$ sudo systemctl restart docker
[elink@iZm5e9xpea3e486br8p7g3Z docker]$ docker info
Client:
Debug Mode: false
Server:
Containers: 0
Running: 0
Paused: 0
Stopped: 0
Images: 0
Server Version: 19.03.8
Storage Driver: overlay2
Backing Filesystem: <unknown>
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: 894b81a4b802e4eb2a91d1ce216b8817763c29fb
runc version: 425e105d5a03fabd737a126ad93d62a9eeede87f
init version: fec3683
Security Options:
seccomp
Profile: default
Kernel Version: 4.18.0-147.5.1.el8_1.x86_64
Operating System: CentOS Linux 8 (Core)
OSType: linux
Architecture: x86_64
CPUs: 2
Total Memory: 3.692GiB
Name: iZm5e9xpea3e486br8p7g3Z
ID: QCP4:HLL5:TT2W:5WJO:XIFS:5YZI:FB3D:5HLP:5GAX:3PXE:3CJK:DQ6K
Docker Root Dir: /mnt/docker/registry
Debug Mode: false
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
Insecure Registries:
127.0.0.0/8
Registry Mirrors:
https://5typxqwj.mirror.aliyuncs.com/
Live Restore Enabled: false
修改外部访问docker的端口号
- 编辑docker文件：/usr/lib/systemd/system/docker.service
命令：vim /usr/lib/systemd/system/docker.service
修改ExecStart行，增加内容 -H tcp://0.0.0.0:10100 ，修改后如下：
ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:10100 -H fd:// --containerd=/run/containerd/containerd.sock
- 重新加载docker配置
systemctl daemon-reload // 1，加载docker守护线程
systemctl restart docker // 2，重启docker
