一、安装docker
安装依赖环境
yum -y install yum-utils device-mapper-persistent-data lvm2
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准备镜像源
curl https://download.docker.com/linux/centos/docker-ce.repo -o /etc/yum.repos.d/docker-ce.repo
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安装docker
yum -y install docker-ce
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启动docker查看docker版本
systemctl start docker
docker version
Client: Docker Engine - Community
Version: 19.03.4
API version: 1.40
Go version: go1.12.10
Git commit: 9013bf583a
Built: Fri Oct 18 15:52:22 2019
OS/Arch: linux/amd64
Experimental: false
docker version
Client: Docker Engine - Community
Version: 19.03.4
API version: 1.40
Go version: go1.12.10
Git commit: 9013bf583a
Built: Fri Oct 18 15:52:22 2019
OS/Arch: linux/amd64
Experimental: false
Server: Docker Engine - Community
Engine:
Version: 19.03.4
API version: 1.40 (minimum version 1.12)
Go version: go1.12.10
Git commit: 9013bf583a
Built: Fri Oct 18 15:50:54 2019
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.2.10
GitCommit: b34a5c8af56e510852c35414db4c1f4fa6172339
runc:
Version: 1.0.0-rc8+dev
GitCommit: 3e425f80a8c931f88e6d94a8c831b9d5aa481657
docker-init:
Version: 0.18.0
GitCommit: fec3683
Engine:
Version: 19.03.4
API version: 1.40 (minimum version 1.12)
Go version: go1.12.10
Git commit: 9013bf583a
Built: Fri Oct 18 15:50:54 2019
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.2.10
GitCommit: b34a5c8af56e510852c35414db4c1f4fa6172339
runc:
Version: 1.0.0-rc8+dev
GitCommit: 3e425f80a8c931f88e6d94a8c831b9d5aa481657
docker-init:
Version: 0.18.0
GitCommit: fec3683
#查看docker信息
docker info
docker info
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阿里云加速器
阿里云加速器网址
阿里云加速器网址
sudo tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": ["https://rxspsdcu.mirror.aliyuncs.com"]
}
EOF
-----------------------------------------------------------------
#重新加载配置，重启服务
systemctl daemon-reload
systemctl restart docker
{
"registry-mirrors": ["https://rxspsdcu.mirror.aliyuncs.com"]
}
EOF
-----------------------------------------------------------------
#重新加载配置，重启服务
systemctl daemon-reload
systemctl restart docker
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二、docker关于镜像的基本操作
二、docker关于镜像的基本操作
查找docker镜像
docker search -s 100 nginx
-s 100 星级评价高于100
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-s 100 星级评价高于100
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下载镜像
docker pull nginx
注：如果不加标签默认下载latest，最新的镜像
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注：如果不加标签默认下载latest，最新的镜像
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查看下载的镜像
docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
nginx latest 540a289bab6c 3 weeks ago 126MB
tomcat latest 882487b8be1d 3 weeks ago 507MB
REPOSITORY TAG IMAGE ID CREATED SIZE
nginx latest 540a289bab6c 3 weeks ago 126MB
tomcat latest 882487b8be1d 3 weeks ago 507MB
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查看镜像信息
docker inspect nginx （镜像ID号）
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更改镜像名或标签
docker tag nginx:latest mynginx:wang
[root@serverB ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
mynginx latest 540a289bab6c 3 weeks ago 126MB
mynginx wang 540a289bab6c 3 weeks ago 126MB
nginx latest 540a289bab6c 3 weeks ago 126MB
tomcat latest 882487b8be1d 3 weeks ago 507MB
[root@serverB ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
mynginx latest 540a289bab6c 3 weeks ago 126MB
mynginx wang 540a289bab6c 3 weeks ago 126MB
nginx latest 540a289bab6c 3 weeks ago 126MB
tomcat latest 882487b8be1d 3 weeks ago 507MB
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删除镜像
docker rmi mynginx:latest
Untagged: mynginx:latest
Untagged: mynginx:latest
docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
nginx latest 540a289bab6c 3 weeks ago 126MB
mynginx wang 540a289bab6c 3 weeks ago 126MB
tomcat latest 882487b8be1d 3 weeks ago 507MB
REPOSITORY TAG IMAGE ID CREATED SIZE
nginx latest 540a289bab6c 3 weeks ago 126MB
mynginx wang 540a289bab6c 3 weeks ago 126MB
tomcat latest 882487b8be1d 3 weeks ago 507MB
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保存镜像到本地
docker save -o nginx.tar nginx:latest
ls
anaconda-ks.cfg nginx.tar
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anaconda-ks.cfg nginx.tar
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将本地文件导入镜像
docker load < nginx.tar
Loaded image: nginx:latest
Loaded image: nginx:latest
[root@serverB ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
mynginx wang 540a289bab6c 3 weeks ago 126MB
nginx latest 540a289bab6c 3 weeks ago 126MB
tomcat latest 882487b8be1d 3 weeks ago 507MB
REPOSITORY TAG IMAGE ID CREATED SIZE
mynginx wang 540a289bab6c 3 weeks ago 126MB
nginx latest 540a289bab6c 3 weeks ago 126MB
tomcat latest 882487b8be1d 3 weeks ago 507MB
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将镜像上传到仓库
docker push nginx:wang #上传到默认仓库
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三、docker关于容器的基本操作
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三、docker关于容器的基本操作
创建容器
docker create -it nginx /bin/bash
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查看容器
docker ps -a #查看全部容器
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
cb69edb91977 nginx "/bin/bash" 42 seconds ago Created jovial_zhukovsky
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
cb69edb91977 nginx "/bin/bash" 42 seconds ago Created jovial_zhukovsky
docker ps #查看启动的容器
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创建并启动容器
docker run -it -p 80:80 -v /html:/usr/share/nginx/html nginx /bin/bash
root@f0d7e9b59fae:/#
退出容器
exit ：退出并关闭容器
ctrl+p+q：快捷键 只是退出容器
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退出容器
exit ：退出并关闭容器
ctrl+p+q：快捷键 只是退出容器
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启动、关闭、重启容器
docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f0d7e9b59fae nginx "/bin/bash" 3 minutes ago Up 3 minutes 0.0.0.0:80->80/tcp relaxed_panini
cb69edb91977 nginx "/bin/bash" 7 minutes ago Created jovial_zhukovsky
#启动
docker start cb69edb91977
cb69edb91977
[root@serverB ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f0d7e9b59fae nginx "/bin/bash" 3 minutes ago Up 3 minutes 0.0.0.0:80->80/tcp relaxed_panini
cb69edb91977 nginx "/bin/bash" 7 minutes ago Up 1 second 80/tcp jovial_zhukovsky
#关闭
[root@serverB ~]# docker stop cb69edb91977
cb69edb91977
[root@serverB ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f0d7e9b59fae nginx "/bin/bash" 3 minutes ago Up 3 minutes 0.0.0.0:80->80/tcp relaxed_panini
cb69edb91977 nginx "/bin/bash" 7 minutes ago Exited (0) 2 seconds ago jovial_zhukovsky
#重启
[root@serverB ~]# docker restart cb69edb91977
cb69edb91977
docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f0d7e9b59fae nginx "/bin/bash" 4 minutes ago Up 4 minutes 0.0.0.0:80->80/tcp relaxed_panini
cb69edb91977 nginx "/bin/bash" 8 minutes ago Up 38 seconds 80/tcp jovial_zhukovsky
#杀死
[root@serverB ~]# docker kill cb69edb91977
cb69edb91977
[root@serverB ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f0d7e9b59fae nginx "/bin/bash" 4 minutes ago Up 4 minutes 0.0.0.0:80->80/tcp relaxed_panini
cb69edb91977 nginx "/bin/bash" 8 minutes ago Exited (137) 2 seconds ago
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CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f0d7e9b59fae nginx "/bin/bash" 3 minutes ago Up 3 minutes 0.0.0.0:80->80/tcp relaxed_panini
cb69edb91977 nginx "/bin/bash" 7 minutes ago Created jovial_zhukovsky
#启动
docker start cb69edb91977
cb69edb91977
[root@serverB ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f0d7e9b59fae nginx "/bin/bash" 3 minutes ago Up 3 minutes 0.0.0.0:80->80/tcp relaxed_panini
cb69edb91977 nginx "/bin/bash" 7 minutes ago Up 1 second 80/tcp jovial_zhukovsky
#关闭
[root@serverB ~]# docker stop cb69edb91977
cb69edb91977
[root@serverB ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f0d7e9b59fae nginx "/bin/bash" 3 minutes ago Up 3 minutes 0.0.0.0:80->80/tcp relaxed_panini
cb69edb91977 nginx "/bin/bash" 7 minutes ago Exited (0) 2 seconds ago jovial_zhukovsky
#重启
[root@serverB ~]# docker restart cb69edb91977
cb69edb91977
docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f0d7e9b59fae nginx "/bin/bash" 4 minutes ago Up 4 minutes 0.0.0.0:80->80/tcp relaxed_panini
cb69edb91977 nginx "/bin/bash" 8 minutes ago Up 38 seconds 80/tcp jovial_zhukovsky
#杀死
[root@serverB ~]# docker kill cb69edb91977
cb69edb91977
[root@serverB ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f0d7e9b59fae nginx "/bin/bash" 4 minutes ago Up 4 minutes 0.0.0.0:80->80/tcp relaxed_panini
cb69edb91977 nginx "/bin/bash" 8 minutes ago Exited (137) 2 seconds ago
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删除容器
docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f0d7e9b59fae nginx "/bin/bash" 9 minutes ago Up 9 minutes 0.0.0.0:80->80/tcp relaxed_panini
cb69edb91977 nginx "/bin/bash" 13 minutes ago Exited (137) 4 minutes ago jovial_zhukovsky
#删除容器
[root@serverB ~]# docker rm -f cb69edb91977
cb69edb91977
[root@serverB ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f0d7e9b59fae nginx "/bin/bash" 9 minutes ago Up 9 minutes 0.0.0.0:80->80/tcp relaxed_panini
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f0d7e9b59fae nginx "/bin/bash" 9 minutes ago Up 9 minutes 0.0.0.0:80->80/tcp relaxed_panini
cb69edb91977 nginx "/bin/bash" 13 minutes ago Exited (137) 4 minutes ago jovial_zhukovsky
#删除容器
[root@serverB ~]# docker rm -f cb69edb91977
cb69edb91977
[root@serverB ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f0d7e9b59fae nginx "/bin/bash" 9 minutes ago Up 9 minutes 0.0.0.0:80->80/tcp relaxed_panini
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查看容器内的输出
docker logs f0d7e9b59fae(容器ID)
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切入容器内部
docker attach f0d7e9b59fae (容器ID)
root@f0d7e9b59fae:/#
root@f0d7e9b59fae:/#
docker exec -it 3bee55d8f5a3 /bin/bash
root@3bee55d8f5a3:/usr/local/tomcat#
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root@3bee55d8f5a3:/usr/local/tomcat#
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导出容器
docker export 3bee55d8f5a3 > tomcat:wang
ls
anaconda-ks.cfg nginx.tar tomcat:wang
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anaconda-ks.cfg nginx.tar tomcat:wang
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导入容器
cat tomcat:wang | docker import - tomcat:wang
sha256:02819d370c0ec8bfc8990e7abbe2796c597f8c29764f9d5ed9d91d33a549a9a5
sha256:02819d370c0ec8bfc8990e7abbe2796c597f8c29764f9d5ed9d91d33a549a9a5
docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
tomcat wang 02819d370c0e 22 seconds ago 499MB
mynginx wang 540a289bab6c 3 weeks ago 126MB
nginx latest 540a289bab6c 3 weeks ago 126MB
tomcat latest 882487b8be1d 3 weeks ago 507MB
REPOSITORY TAG IMAGE ID CREATED SIZE
tomcat wang 02819d370c0e 22 seconds ago 499MB
mynginx wang 540a289bab6c 3 weeks ago 126MB
nginx latest 540a289bab6c 3 weeks ago 126MB
tomcat latest 882487b8be1d 3 weeks ago 507MB
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将真机文件复制到docker容器中
docker cp anaconda-ks.cfg 3bee55d8f5a3:/webapps
docker exec -it 3bee55d8f5a3 /bin/bash
root@3bee55d8f5a3:/usr/local/tomcat# cd
root@3bee55d8f5a3:~# ls /webapps/
anaconda-ks.cfg
root@3bee55d8f5a3:/usr/local/tomcat# cd
root@3bee55d8f5a3:~# ls /webapps/
anaconda-ks.cfg
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