1.docker Profile
- To solve the problem: the package development environment and run the code to overall operation and maintenance;
developers can eliminate the use of Docker collaborative coding problems "on my machine can work normal";
2.docker advantage
- 1. lightweight, quick-second start-up speed
- 2. Simple, easy to use, active community
- 3. The standard uniform packaging / deployment / run program
- 4. Mirroring supports incremental distribution, ease of deployment
- 5. easy to build a good REST API, also very suitable for automated testing and continuous integration
- 6. performance, especially memory and IO overhead
3.docker installation
1. Basic Composition
1. Mirror: is a read-only template, a mirror can create a lot of container
2. Container: Container is created with a running instance of the mirror
3. Warehouse: centralized place to store image files
2. Install
1.centos6.8:
0.找到阿里云容器镜像服务:镜像加速器,复制自己的专属加速器
1.yum install -y epel-release //装库EPEL
2.yum install -y docker-io //安装docker
3.安装后的配置文件: /etc/sysconfig/docker
配置other_arg="--registry-mirror=https://你自己的加速器.aliyuncs.com"
DOCKER_CERT_PATH=/etc/docker
DOCKER_NOWARN_KERNEL_VERSION=1
4.启动Docker后台服务:service docker start //重启时retart
5.docker version
2.centos7(阿里云服务器):
0.找到阿里云容器镜像服务:镜像加速器,复制自己的专属加速器
0.1.yum -y upate //防止报错: Error response from daemon: oci runtime error:
container_linux.go:247: starting container process
0.2.yum -y install epel-release
1.yum -y install docker-ce
2.service docker start //开机启动
3.查看版本docker version
4.vim /etc/docker/daemon.json //生成并编辑加入下面的json串
5.{
"registry-mirrors": ["https://你自己的加速器.aliyuncs.com"]
} //告诉centos7去这个地址找
6.systemctl daemon-reload
7.systemctl restart docker //重启时retart
3.卸载centos7
1.systemctl stop docker
2.yum remove docker docker-common docker-selinux dockesr-engine //卸载
3.rm -rf /var/lib/docker
4.docker operating principle
What 1.run command did?
2.docker underlying principle
- 1.docker of difference and vm
5.docker commonly used commands
- Help command
1.docker version //查看版本
2.docker info //docker信息描述
3.docker --help //帮助命令
- Mirroring Command
1.docker images //列出本机上的镜像
-a == all //全镜像
-q //只显示id
-qa //显示全id
--digests //显示摘要信息
--no-trunc //显示完整的镜像信息
2.docker search XXX //在docker hub查找镜像XXX
-s //点赞数筛选超过的
3.docker pull XXX //下载镜像XXX 等价 docker pull XXX:latest 最新版
4.docker rmi XXX //删除XXX镜像
-f XXX //删除单个
-f XXX XXX //删除多个
-f $(docker images -qa) //删除全部
- Containers (primary core when pulling the pull, without considering the hardware configuration) command
- The container can be as simple version of the LINUX environment
1.docker run [OPTIONS]
-it XXXID //启动交互式容器
1.1 exit //容器停止退出
1.2 ctrl+P+Q //容器不停止推出
2.docker ps [OPTIONS] //docker跑了几个容器
3.docker start XXXID //启动容器
4.docker restart XXXID //重启容器
5.docker stop XXXID //停止容器
docker kill XXXID //强制关闭容器
6.docker rm XXXID //删除已停止的容器
-f XXXID //删除没有停止的容器
7.docker rm -f $(docker ps -a -q) //删除全部容器
- Container emphasis
1.docker run -d XXX //后台启动返回ID ,自守护模式,不交互
2.docker logs -f -t --tail XXXID //查看容器日志
-t 是加入时间戳
-f 是跟随最新的日志打印
--tail 显示最后多少条
3.docker top XXXID //查看容器内运行的进程
4.docker inspect XXXID //查看容器内部细节
5.docker attach XXXID //重新进入容器(当执行ctrl+P+Q之后)
6.docker exec -t XXXID ls -l /tmp //不需要进入容器内部,直接的到结果
7.docker cp XXXID:/tmp/yum.log /root/abc //从容器内拷贝数据到主机上
- Commonly used commands graphic
- help command in translation
attach Attach to a running container # 当前 shell 下 attach 连接指定运行镜像
build Build an image from a Dockerfile # 通过 Dockerfile 定制镜像
commit Create a new image from a container changes # 提交当前容器为新的镜像
cp Copy files/folders from the containers filesystem to the host path #从容器中拷贝指定文件或者目录到宿主机中
create Create a new container # 创建一个新的容器，同 run，但不启动容器
diff Inspect changes on a container's filesystem # 查看 docker 容器变化
events Get real time events from the server # 从 docker 服务获取容器实时事件
exec Run a command in an existing container # 在已存在的容器上运行命令
export Stream the contents of a container as a tar archive # 导出容器的内容流作为一个 tar 归档文件[对应 import ]
history Show the history of an image # 展示一个镜像形成历史
images List images # 列出系统当前镜像
import Create a new filesystem image from the contents of a tarball # 从tar包中的内容创建一个新的文件系统映像[对应export]
info Display system-wide information # 显示系统相关信息
inspect Return low-level information on a container # 查看容器详细信息
kill Kill a running container # kill 指定 docker 容器
load Load an image from a tar archive # 从一个 tar 包中加载一个镜像[对应 save]
login Register or Login to the docker registry server # 注册或者登陆一个 docker 源服务器
logout Log out from a Docker registry server # 从当前 Docker registry 退出
logs Fetch the logs of a container # 输出当前容器日志信息
port Lookup the public-facing port which is NAT-ed to PRIVATE_PORT # 查看映射端口对应的容器内部源端口
pause Pause all processes within a container # 暂停容器
ps List containers # 列出容器列表
pull Pull an image or a repository from the docker registry server # 从docker镜像源服务器拉取指定镜像或者库镜像
push Push an image or a repository to the docker registry server # 推送指定镜像或者库镜像至docker源服务器
restart Restart a running container # 重启运行的容器
rm Remove one or more containers # 移除一个或者多个容器
rmi Remove one or more images # 移除一个或多个镜像[无容器使用该镜像才可删除，否则需删除相关容器才可继续或 -f 强制删除]
run Run a command in a new container # 创建一个新的容器并运行一个命令
save Save an image to a tar archive # 保存一个镜像为一个 tar 包[对应 load]
search Search for an image on the Docker Hub # 在 docker hub 中搜索镜像
start Start a stopped containers # 启动容器
stop Stop a running containers # 停止容器
tag Tag an image into a repository # 给源中镜像打标签
top Lookup the running processes of a container # 查看容器中运行的进程信息
unpause Unpause a paused container # 取消暂停容器
version Show the docker version information # 查看 docker 版本号
wait Block until a container stops, then print its exit code # 截取容器停止时的退出状态值
