Detailed explanation of the working principle and usage of the Docker image submission command commit

After creating a container locally, you can create a local image based on this container and push this image to the Docker hub for download and use on the Internet.

Now let’s put it into practice.

docker pull nginx:1.15.3 

Start a container using the command line:

docker run -d -p 1080:80 --name jerry-nginx nginx:1.15.3 

localhost:1080

Enter the container's shell:

docker exec -it jerry-nginx /bin/bash

View the default homepage of this nginx image:

I want to use wget in the container, so I install it first:

apt-get update && apt-get -y install wget 

Use the wget command to download an image file and an HTML file to the location where the Nginx server stores the web page:

wget --no-check-certificate -O /usr/share/nginx/html/evil.jpg https://github.com/raw/slvi/docker-k8s-training/master/docker/res/evil.jpg
wget --no-check-certificate -O /usr/share/nginx/html/index.html https://github.com/raw/slvi/docker-k8s-training/master/docker/res/evil.html

Refresh the page, and the page we see now has become the page downloaded by wget:

We now want to solidify the changes found in this container so that others can use them.

docker commit jerry-nginx jerry-modify-nginx:1.0 

Use the command to set 1.0 as the latest tag:

docker tag jerry-modify-nginx:1.0 jerry-modify-nginx:latest

Use docker stop jerry-nginx to stop the old container, and then start the modified container jerry-modify-nginx:

docker history View the history of this new image:

Execute the command to label this new image:

docker tag jerry-modify-nginx:latest registry.ingress.shcw46.k8s-train.shoot.canary.k8s-hana.ondemand.com/jerry-modify-nginx:760d7ca6

Push the tagged image to the remote end:

docker push registry.ingress.shcw46.k8s-train.shoot.canary.k8s-hana.ondemand.com/jerry-modify-nginx:760d7ca6 

The above is the full content of this article. I hope it will be helpful for everyone’s study. I also hope that everyone will support 123WORDPRESS.COM.