Docker commands

build

官方

說明：用來建立image

常用參數

-t 指定repository:tag
docker build . -t repository:tag
eg: docker build . it myname/golang:1.14-centos7

-f 指定dockerfile
docker build -f dockerfile.debug

build with RUL

docker build github.com/create/docker-firefox 

run

官方

說明：用來執行docker

使用概念

• 1 參數
• 2 綁定
• 3 執行的image

常用參數

--interactive,-i Keep STDIN open even if not attached

--tty,-t Allocate a pseudo-TTY

--ulimit Ulimit options

--mount Attach a filesystem mount to the container

--add-host Add a custom host-to-IP mapping(host:ip)

--attach,-a Attach to STDIN,STDOUT or STDERR

--link Add link to another container

--name Assign a name to the container

--publish,-p Publish a container's port(s) to the host

--publish-all, -P Publish all exposed ports to random ports

--expose expose a port

--rm Automatically remove the container when it exits

--ip IPv4 Address

--ip6 IPv6 address

-w lets the container command being executed inside directory given

Example

Assign name and allocate pseudo-TTY

$ docker run --name test -it debian

Set working directory

$  docker  run -w /path/to/dir/ -i -t  ubuntu pwd

Exporse port 80 of the container without publishing the port to host
Expose port但是沒有連結到host的外面。

$ docker run --expose 80 ubuntu bash

Publish a port
把container port 發布到host介面。
這裡是綁定8080到 host tcp 80 on 127.0.0.1

$ docker run -p 127.0.0.1:80:8080/tcp ubuntu bash