centos7安装docker
vi /etc/yum.repos.d/docker.repo
[dockerrepo]
name=Docker Repository
baseurl=https://yum.dockerproject.org/repo/main/centos/$releasever/
enabled=1
gpgcheck=1
gpgkey=https://yum.dockerproject.org/gpg
yum install docker-engine
启动失败
[root@yanzh opt]# service docker start
Redirecting to /bin/systemctl start docker.service
Job for docker.service failed because the control process exited with error code. See "systemctl status docker.service" and "journalctl -xe" for details.
[root@yanzh opt]# systemctl status docker.service
● docker.service - Docker Application Container Engine
Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)
Active: failed (Result: start-limit) since Sun 2019-02-24 14:29:56 PST; 23s ago
Docs: https://docs.docker.com
Process: 8401 ExecStart=/usr/bin/dockerd (code=exited, status=1/FAILURE)
Main PID: 8401 (code=exited, status=1/FAILURE)
Feb 24 14:29:56 yanzh systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE
Feb 24 14:29:56 yanzh systemd[1]: Failed to start Docker Application Container Engine.
Feb 24 14:29:56 yanzh systemd[1]: Unit docker.service entered failed state.
Feb 24 14:29:56 yanzh systemd[1]: docker.service failed.
Feb 24 14:29:56 yanzh systemd[1]: docker.service holdoff time over, scheduling restart.
Feb 24 14:29:56 yanzh systemd[1]: Stopped Docker Application Container Engine.
Feb 24 14:29:56 yanzh systemd[1]: start request repeated too quickly for docker.service
Feb 24 14:29:56 yanzh systemd[1]: Failed to start Docker Application Container Engine.
Feb 24 14:29:56 yanzh systemd[1]: Unit docker.service entered failed state.
Feb 24 14:29:56 yanzh systemd[1]: docker.service failed.
清理
[root@yanzh opt]# yum remove docker
Loaded plugins: fastestmirror, langpacks
No Match for argument: docker
No Packages marked for removal
[root@yanzh opt]# docker -v
Docker version 17.05.0-ce, build 89658be
[root@yanzh opt]# yum remove docker-selinux
Loaded plugins: fastestmirror, langpacks
No Match for argument: docker-selinux
No Packages marked for removal
[root@yanzh opt]# docker -v
Docker version 17.05.0-ce, build 89658be
[root@yanzh opt]#
[root@yanzh opt]#
[root@yanzh opt]#
[root@yanzh opt]#
[root@yanzh opt]#
[root@yanzh opt]#
[root@yanzh opt]# vi /etc/yum.repos.d/docker.repo
[root@yanzh opt]# docker version
Client:
Version: 17.05.0-ce
API version: 1.29
Go version: go1.7.5
Git commit: 89658be
Built: Thu May 4 22:06:25 2017
OS/Arch: linux/amd64
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
[root@yanzh opt]#
重新安装curl -fsSL https://get.docker.com/ | sh
[root@yanzh opt]# curl -fsSL https://get.docker.com/ | sh
# Executing docker install script, commit: 40b1b76
Warning: the "docker" command appears to already exist on this system.
If you already have Docker installed, this script can cause trouble, which is
why we're displaying this warning and provide the opportunity to cancel the
installation.
If you installed the current Docker package using this script and are using it
again to update Docker, you can safely ignore this message.
You may press Ctrl+C now to abort this script.
+ sleep 20
+ sh -c 'yum install -y -q yum-utils'
Package yum-utils-1.1.31-50.el7.noarch already installed and latest version
+ sh -c 'yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo'
Loaded plugins: fastestmirror, langpacks
adding repo from: https://download.docker.com/linux/centos/docker-ce.repo
grabbing file https://download.docker.com/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.repo
repo saved to /etc/yum.repos.d/docker-ce.repo
+ '[' edge '!=' stable ']'
+ sh -c 'yum-config-manager --disable docker-ce-*'
Loaded plugins: fastestmirror, langpacks
==================================================================================== repo: docker-ce-edge =====================================================================================
[docker-ce-edge]
async = True
bandwidth = 0
base_persistdir = /var/lib/yum/repos/x86_64/7
baseurl = https://download.docker.com/linux/centos/7/x86_64/edge
cache = 0
cachedir = /var/cache/yum/x86_64/7/docker-ce-edge
check_config_file_age =
.
.
.
updates | 3.4 kB 00:00:00
(1/13): base/7/x86_64/other_db | 2.6 MB 00:00:01
(2/13): docker-ce-edge/x86_64/updateinfo | 55 B 00:00:01
(3/13): docker-ce-edge/x86_64/filelists_db | 14 kB 00:00:01
(4/13): extras/7/x86_64/filelists_db | 231 kB 00:00:00
(5/13): extras/7/x86_64/prestodelta | 47 kB 00:00:00
(6/13): extras/7/x86_64/other_db | 118 kB 00:00:00
(7/13): docker-ce-edge/x86_64/primary_db | 27 kB 00:00:00
(8/13): docker-ce-edge/x86_64/other_db | 78 kB 00:00:01
(9/13): updates/7/x86_64/prestodelta | 341 kB 00:00:00
(10/13): updates/7/x86_64/filelists_db | 1.9 MB 00:00:01
(11/13): updates/7/x86_64/other_db | 340 kB 00:00:01
(12/13): dockerrepo/7/filelists_db | 40 kB 00:00:04
(13/13): dockerrepo/7/other_db | 652 kB 00:00:18
Metadata Cache Created
+ sh -c 'yum install -y -q docker-ce'
warning: /var/cache/yum/x86_64/7/docker-ce-edge/packages/docker-ce-18.09.2-3.el7.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 621e9f35: NOKEY
Public key for docker-ce-18.09.2-3.el7.x86_64.rpm is not installed
Importing GPG key 0x621E9F35:
Userid : "Docker Release (CE rpm)
Fingerprint: 060a 61c5 1b55 8a7f 742b 77aa c52f eb6b 621e 9f35
From : https://download.docker.com/linux/centos/gpg
+ sh -c 'docker version'
Client:
Version: 18.09.2
API version: 1.39
Go version: go1.10.6
Git commit: 6247962
Built: Sun Feb 10 04:13:27 2019
OS/Arch: linux/amd64
Experimental: false
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
If you would like to use Docker as a non-root user, you should now consider
adding your user to the "docker" group with something like:
sudo usermod -aG docker your-user
Remember that you will have to log out and back in for this to take effect!
WARNING: Adding a user to the "docker" group will grant the ability to run
containers which can be used to obtain root privileges on the
docker host.
Refer to https://docs.docker.com/engine/security/security/#docker-daemon-attack-surface
for more information.
** DOCKER ENGINE - ENTERPRISE **
If you’re ready for production workloads, Docker Engine - Enterprise also includes:
* SLA-backed technical support
* Extended lifecycle maintenance policy for patches and hotfixes
* Access to certified ecosystem content
** Learn more at https://dockr.ly/engine2 **
ACTIVATE your own engine to Docker Engine - Enterprise using:
sudo docker engine activate
上述过程得一会儿时间
安装成功，启动
[root@yanzh ~]# service docker start
Redirecting to /bin/systemctl start docker.service
[root@yanzh ~]# docker version
Client:
Version: 18.09.2
API version: 1.39
Go version: go1.10.6
Git commit: 6247962
Built: Sun Feb 10 04:13:27 2019
OS/Arch: linux/amd64
Experimental: false
Server: Docker Engine - Community
Engine:
Version: 18.09.2
API version: 1.39 (minimum version 1.12)
Go version: go1.10.6
Git commit: 6247962
Built: Sun Feb 10 03:47:25 2019
OS/Arch: linux/amd64
Experimental: false
[root@yanzh ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
docker 卸载指令
yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-selinux \
docker-engine-selinux \
docker-engine
rm -rf /etc/systemd/system/docker.service.d
rm -rf /var/lib/docker
rm -rf /var/run/docker
docker配置国内仓库地址方法
在这个文件/etc/docker/daemon.json（如果没有自己新建）
加 {
"registry-mirrors": ["http://hub-mirror.c.163.com"]
}
安装指定版本docker
https://www.cnblogs.com/harlanzhang/p/9965534.html
启动指令
systemctl start docker
systemctl enable docker
systemctl status docker