Docker学习
linux安装Docker
1.linux环境查看
查看linux版本环境查看 uname
2.系统版本信息查看
[root@linux /]# uname -r
3.10.0-1127.el7.x86_64
[root@linux /]# ^C
[root@linux /]# cat /etc/os-release
NAME=“CentOS Linux”
VERSION=“7 (Core)”
ID=“centos”
ID_LIKE=“rhel fedora”
VERSION_ID=“7”
PRETTY_NAME=“CentOS Linux 7 (Core)”
ANSI_COLOR=“0;31”
CPE_NAME=“cpe:/o:centos:centos:7”
HOME_URL=“https://www.centos.org/”
BUG_REPORT_URL=“https://bugs.centos.org/”
CENTOS_MANTISBT_PROJECT=“CentOS-7”
CENTOS_MANTISBT_PROJECT_VERSION=“7”
REDHAT_SUPPORT_PRODUCT=“centos”
REDHAT_SUPPORT_PRODUCT_VERSION=“7”
3.开始安装docker
1.卸载旧的docker版本:
yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-engine
2.需要的安装包:
yum install -y yum-utils
3.设置镜像仓库(默认是国外的,十分慢,换成国内的):
#国外的:
yum-config-manager \
--add-repo \
https://download.docker.com/linux/centos/docker-ce.repo #国外的镜像地址
#国内的:
yum-config-manager \
--add-repo \
http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo #国内的镜像地址
4.更新yum软件包索引
yum makecache fast
5.安装docker相关的
安装最新的版本:
yum install docker-ce docker-ce-cli containerd.io
安装指定版本的:
yum install docker-ce-<VERSION_STRING> docker-ce-cli-<VERSION_STRING> containerd.io
6.启动docker:
systemctl start docker
7.查看docker是否安装成功
docker version
[root@linux /]# docker version
Client: Docker Engine - Community
Version: 20.10.6
API version: 1.41
Go version: go1.13.15
Git commit: 370c289
Built: Fri Apr 9 22:45:33 2021
OS/Arch: linux/amd64
Context: default
Experimental: true
Server: Docker Engine - Community
Engine:
Version: 20.10.6
API version: 1.41 (minimum version 1.12)
Go version: go1.13.15
Git commit: 8728dd2
Built: Fri Apr 9 22:43:57 2021
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.4.4
GitCommit: 05f951a3781f4f2c1911b05e61c160e9c30eaa8e
runc:
Version: 1.0.0-rc93
GitCommit: 12644e614e25b05da6fd08a38ffa0cfe1903fdec
docker-init:
Version: 0.19.0
GitCommit: de40ad0
- 启动hello world
docker run hello-world
9.查看下载好的hello world
docker images
4.卸载docker
1.删除依赖
yum remove docker-ce docker-ce-cli containerd.io
2.删除资源
rm -rf /var/lib/docker
rm -rf /var/lib/containerd