This image use to check running container on the machine, it's images have update on docker hub or not. It base on python:2.7.14-alpine and following step to check:
1. Using python library for the Docker Engine API to get container's ID , Repo , Tag
2. Call the Docker Hub API to verify Digest on Docker Hub and local images
3. If Digest dosen't match , it will print "true"
In order to build it you need the following python components in your system. Which you can use "pip install", and this image will install for you.
1.docker (docker-py, Docker SDK for Python)
2.request (simple HTTP library for Python)
Following step to build and run this image:
1.Give it an name and build image
ex:
docker build -t=app .
2.Mount docker.sock that on the host machine into container and run it
ex:
docker run -it -v /var/run/docker.sock:/var/run/docker.sock app
3.It will print the result on the console
ex:
CONTAINER ID TAG UP TO DATE?
80467697c3 latest true
f936e4b7f4 2.7.14-alpine false
a342ee5104 latest false
55c3b2f6e5 20170621-1645 Not Found in Docker Hub
5ac4e10612 20170825-1223 Not Found in Docker Hub
3cb9c78b56 3.4 false
314ea8078c latest true