Docker版本及依赖的基础环境
Docker版本
双发行版
docker-ee
docker-ce
moby
依赖的基础环境
64 bits CPU
Linux Kernel 3.10+
Linux Kernel cgroups and namespaces
Docker安装方法
1、CentOS Extras Repo
2、Docker-CE
下载：https://download.docker.com/
仓库配置文件：https://download.docker.com/linux/centos/docker-ce.repo
Docker程序环境
环境配置文件：
/etc/sysconfig/docker-network
/etc/sysconfig/docker-storage
/etc/sysconfig/docker
Unit File：
/usr/lib/systemd/system/docker.service
Docker Registry配置文件：
/etc/containers/registries.conf
docker-ce:
配置文件：/etc/docker/daemon.json
Docker镜像加速
Docker cn
{
"registry-mirrors": ["https://registry.docker-cn.com"]
}
中国科技大学
阿里云加速器
注册阿里云账号,专用加速器地址获得路径：
https://cr.console.aliyun.com/#/accelerator
Docker使用
启动服务即可使用Docker
systemctl start docker
Docker命令
Usage: docker [OPTIONS] COMMAND
A self-sufficient runtime for containers
Options:
--config string Location of client config files (default "/root/.docker")
-D, --debug Enable debug mode
-H, --host list Daemon socket(s) to connect to
-l, --log-level string Set the logging level ("debug"|"info"|"warn"|"error"|"fatal")
(default "info")
--tls Use TLS; implied by --tlsverify
--tlscacert string Trust certs signed only by this CA (default "/root/.docker/ca.pem")
--tlscert string Path to TLS certificate file (default "/root/.docker/cert.pem")
--tlskey string Path to TLS key file (default "/root/.docker/key.pem")
--tlsverify Use TLS and verify the remote
-v, --version Print version information and quitManagement Commands: config Manage Docker configs container Manage containers image Manage images network Manage networks node Manage Swarm nodes plugin Manage plugins secret Manage Docker secrets service Manage services stack Manage Docker stacks swarm Manage Swarm system Manage Docker trust Manage trust on Docker images volume Manage volumes
Commands: attach Attach local standard input, output, and error streams to a running container build Build an image from a Dockerfile commit Create a new image from a container's changes cp Copy files/folders between a container and the local filesystem create Create a new container diff Inspect changes to files or directories on a container's filesystem events Get real time events from the server exec Run a command in a running container export Export a container's filesystem as a tar archive history Show the history of an image images List images import Import the contents from a tarball to create a filesystem image info Display system-wide information inspect Return low-level information on Docker objects kill Kill one or more running containers load Load an image from a tar archive or STDIN login Log in to a Docker registry logout Log out from a Docker registry logs Fetch the logs of a container pause Pause all processes within one or more containers port List port mappings or a specific mapping for the container ps List containers pull Pull an image or a repository from a registry push Push an image or a repository to a registry rename Rename a container restart Restart one or more containers rm Remove one or more containers rmi Remove one or more images run Run a command in a new container save Save one or more images to a tar archive (streamed to STDOUT by default) search Search the Docker Hub for images start Start one or more stopped containers stats Display a live stream of container(s) resource usage statistics stop Stop one or more running containers tag Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE top Display the running processes of a container unpause Unpause all processes within one or more containers update Update configuration of one or more containers version Show the Docker version information wait Block until one or more containers stop, then print their exit codes Run 'docker COMMAND --help' for more information on a command.
常用操作
查看docker相关的信息：
version
info
镜像：
images
rmi
pull
容器：
run：创建并运行一个容器；
create：创建一个容器；
start：启动一个处于停止状态容器；
创建：
create
run
启动：
start
停止：
kill
stop
重启：
restart
暂停和继续：
pause
unpause
删除容器：
rm
run --rm
创建容器：
基于“镜像文件”，
镜像文件有默认要运行的程序；
注意：
运行的容器内部必须有一个工作前台的运行的进程；
docker的容器的通常也是仅为运行一个程序；
要想在容器内运行多个程序，一般需要提供一个管控程序，例如supervised。
run, create
--name CT_NAME
--rm：容器运行终止即自行删除
--network BRIDGE：让容器加入的网络；
默认为docker0；
交互式启动一个容器：
-i：--interactive，交互式；
-t：Allocate a pseudo-TTY
从终端拆除：ctrl+p, ctrl+q
attach：附加至某运行状态的容器的终端设备；
exec：让运行中的容器运行一个额外的程序；
查看：
logs：Fetch the logs of a container，容器内部程序运行时输出到终端的信息；
ps：List containers
-a, --all：列出所有容器；
--filter, -f：过滤器条件显示
name=
status={stopped|running|paused}
stats：动态方式显示容器的资源占用状态：
top：Display the running processes of a container容器状态及命令
容器的状态：
created
runing
paused
stopped
deleted