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This article mainly explains "how to use Docker image and warehouse". The content of the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "how to use Docker image and warehouse".

Docker Mirror

Superimposed by the file system

The first layer at the bottom is the boot file system bootfs, similar to grub

The second layer of mirroring is root file system rootfs

List Mirror

Huangyi@HP ~% sudo docker imagesREPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZEubuntu latest cdd474520b8c 2 days ago 188 MB

Delete Mirror

Sudo docker rmi ubuntu

Relationship between image and container

One to many

Mirror image-- > program

Container-- > process

Warehouse

View other images in the ubuntu repository

HP docker # sudo docker pull ubuntuPulling repository ubuntuc6a3582257ff: Pulling image (vivid-20150528) from ubuntu, endpoint: https://registry-1.docker.io/v1/ 5ba9dab47459: Pulling image (14.04.1) from ubuntu, endpoint: https://registry-1.docker.io/v1/commit to build a new image

Create a custom container to modify

Sudo docker run-I-t ubuntu / bin/bash

Install vim in the container

Root@93a46591d393:/# sudo apt-get install vimReading package lists... Done

Submit

HP huangyi # sudo docker commit 93a46591d393 ubuntu/myvim3806f1faa5f007ccc756c96490d23c75fb8ede77775c3cd2b310617038157876

Looking at the current Repo of this machine, you can see that there is an extra ubuntu/myvim.

HP huangyi # sudo docker imagesREPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZEubuntu/myvim latest 3806f1faa5f0 2 minutes ago 231.4 MBubuntu latest cdd474520b8c 3 days ago 188 MB

# # Building a new image based on Dockerfile

HP Docker # tree. └── static_web └── Dockerfile

Dockerfile file

# Version: 0.01FROM ubuntuMAINTAINER name "ituzhi@163.com" RUN apt-get updateRUN apt-get install-y nginxRUN echo'Hi, I am in your container'\ > / usr/share/nginx/html/index.htmlEXPOSE 80

Build an image

Sudo docker build-t = "name/static_web".

Looking at Repo, you can see that there is an extra name/static_web.

Huangyi@HP ~ $sudo docker imagesREPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZEname/static_web latest 1f8ee6fd2bd6 5 minutes ago 227.7 MBubuntu/myvim latest 3806f1faa5f0 29 minutes ago 231.4 MBubuntu latest cdd474520b8c 3 days ago 188 MB

Each of the above RUN statements generates a new mirror, updates the mirror ID, and deletes the old mirror.

View the final image

Huangyi@HP ~ $sudo docker run-t-I 1f8ee6fd2bd6 / bin/bashroot@778aa645f23f:/# cat / usr/share/nginx/html/index.htmlHi, I am in your containe

It can be seen that the image was built successfully.

You can also start Nginx in the container.

Sudo docker run-I-t-p 80 titus/static_webnginx-g "daemon off"

The-p option binds port 49153 of the host to port 80 of the container, in the host

HP static_web # curl 192.168.1.154:49153Hi, I am in your container

# # push image to Docker Hub and log in to Docker Hub

Sudo docker login

Push

Docker push name/web

It is important to note that the username at build time must be the user name in Docker Hub

Sudo docker build-t = "name/static_web".

# # reference

Http://stackoverflow.com/questions/25388684/pushing-docker-image-to-dockerhub

Thank you for your reading. the above is the content of "how to use Docker images and repositories". After the study of this article, I believe you have a deeper understanding of how to use Docker images and warehouses, and the specific usage needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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