Docker started 7 build image

Foreword

advantage:

• Save changes to the container, and used again
• Custom Mirror
• Packaging and distribution services in software and operating environment

Command Summary:

• By constructing the container

  docker commit [OPTIONS] CONTAINER [REPOSITORY[:TAG]]

• Constructed by Dockerfile file

  docker build

By constructing the container

docker commit [OPTIONS] CONTAINER [REPOSITORY[:TAG]]

• -a : Default --author = "", is used to specify the author of a mirror, usually fill in the author's name and contact information.
• -m : For recording image information constructed,
• -p : Since the construction of the container, the container will suspend the running of the parameters can not suspend the running of the vessel.

Examples

# 通过容器构建镜像
$ docker commit -a "yogile" -m "commit test" commit_t yogile/commit_t
sha256:8429b31f250ee3e6ac4f9cef2e209e5e5b0f186bfbe0eb70359886560ccd6e7e

# 查看镜像
$ docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
yogile/commit_t     latest              8429b31f250e        23 seconds ago      209MB

At this time, we have built a mirror, this mirror can run the container.

Use Dockerfile build file

This method is actually similar to writing a script file and execute it, and then step by step to form a container to be obtained according to the command.

Create a file Dockerfile

Create a directory to store Dockerfile

mkdir -p dockerfile/df_test1

Create a file Dockerfile

vim dockerfile/df_test1/Dockerfile

Here Dockerfile file must be named Dockerfile, otherwise an error:

unable to prepare context: unable to evaluate symlinks in Dockerfile path: lstat /home/debiana/dockerfile/df_test1/Dockerfile: no such file or directory

Examples

# Dockerfile
# 选择镜像的所需 Repository 仓库
FROM ubuntu:18.04
# 填写维护人员信息
MAINTAINER "Yogile" "[email protected]"
# 执行 apt-get update 命令
RUN apt-get update
# 执行下载安装 nginx 命令
RUN apt-get install nginx -y
# 绑定端口 80
EXPOSE 80

Use docker buildbuild Mirror

docker build [OPTIONS] PATH | URL | -

• -t : - tag = "", designated to build the image name
• PATH : Specifies the path Dockerfile file

Examples

docker build -t ubuntu_yyy dockerfile/df_test1