hello-world
docker pull hello-world
docker images hell-world
docker run hello-world
COPY hello / CMD ["/hello"]
FROM scratch
centos
docker pull centos
ADD xx.tar.xz / CMD["/bin/bash"]
docker run -it centos
RUN yum install -y xxx
千层饼
两种镜像构建方式：docker commit 、dockerfile
docker commit xx yourimagename
dockerfile
FROM centos
RUN yum install -y vim
CMD["/bin/bash"]
构建:.当前目录
docker build -t yourimagename .
查看镜像分层结构
docker history yourimagename
不缓存：build --no-cache
Dockerfile
FROM busybox
RUN touch tempfile
RUN /bin/bash -c echo "xxx"
COPY testfile /
docker build -t xx .
docker run -it xxx
Dockerfile 常用指令
FROM
MAINTAINER
COPY
ADD :和COPY类似，但是如果是压缩文件，会解压
ENV
EXPOSE 端口
VOLUME
WORKDIR
RUN
CMD
ENTERPOINT:CMD或docker run 之后的参数会被传递给ENTERPOINT
建议使用列表形式[]
ENTERPOINT不会被忽略，一定会执行。CMD会被忽略
imagename= xx:tag
docker tag给镜像打tag
docker tag xx xx:1.9
搭建本地registry
docker run -d -p 5000:5000 -v /myregistry:/var/lib/registry registry:2
docker push xx:5000/xx/hxx
docker 指令
docker images
docker history xx
docker commit xxx
docker build
docker tag
docker pull xxx
docker push xxx
docker rmi xx
docker search xx
