Nexus script to delete docker images based on semantic version

Description

This script will delete all docker images that have a lower version than the semantic version that the user passes as argument, uses Nexus API to interact with the Nexus itself. This has been tested with Nexus versions from 3.17 to 3.44.

Also will prompt the user for the necessary information:

• username to access nexus
• password to access nexus
• microservice_name to delete the images
• compare_version to be used for compare

The information about nexus_url and docker_repository should be filled on the respective variables from remove_dockerimages_by_semver.sh

The script was adapted to be able to run even in git bash so it has some funny ways on how variables are iterated and populated :)

Requirements

• username with at least delete access to docker_repository repository from Nexus nexus_url
• functions file together with the actual script ./remove_dockerimages_by_semver.sh
• jq

How to run the script:

./remove_dockerimages_by_semver.sh

Before the script prompts you to deletes your images will create a file microservice_name.txt and will have all docker images + component id so the user could double check the docker images identified for deletion.