ci: Add Job to cleanup older images for all builds

Closes #265 (closed)

• Keep the latest $NUM_IMAGES_TO_KEEP no. of images in a list sorted by creation time in descending order.
• The NUM_IMAGES_TO_KEEP value should always be postive so that the list of servers to delete will be calculated correctly
• Never run the cleanup_img job if NUM_IMAGES_TO_KEEP is non-postive. So if you intend to not cleanup the images for any reason, just pass a negative value or 0 to the NUM_IMAGES_TO_KEEP

added Sprint 25-13 label

assigned to @atlurie

added 2 commits

• 6b7ff04d - ci: Job to cleanup older images based on NUM_IMAGES_TO_KEEP var
• f63bfe01 - ci: Add a default value for no. of imgs to retain

Compare with previous version

added 1 commit

• 397b823d - syntax fix

Compare with previous version

added 1 commit

• 9888d5e3 - syntax fix

Compare with previous version

added 1 commit

• f03e2582 - syntax fix

Compare with previous version

marked this merge request as draft

added 6 commits

• f1e93d6c - ci: Job to cleanup older images based on NUM_IMAGES_TO_KEEP var
• 71980e8b - ci: Add a default value for no. of imgs to retain
• 8597ca8e - ci: Use quotes to prevent interpreting it as bash cmd
• 1a48f6f7 - ci: Quote the list elements as packer requires it
• 9ec39604 - ci: Sort image list by creation time
• b4e6feca - ci: Run cleanup_img job only for the img builds

Compare with previous version

changed the description

marked this merge request as ready

changed title from Draft: ci: Job to cleanup older images based on NUM_IMAGES_TO_KEEP var to ci: Add Job to cleanup older images.

changed title from ci: Add Job to cleanup older images. to ci: Add Job to cleanup older images after build

added 2 commits

• 08e000a9 - ci: Sort image list by creation time to prepare for cleanup
• 5b83f3d2 - ci: Run cleanup_img job only for the img builds

Compare with previous version

added 6 commits

• 676bb367 - ci: Job to cleanup older images based on NUM_IMAGES_TO_KEEP var
• d32e0f1e - ci: Add a default value for no. of imgs to retain
• 347a639a - ci: Use quotes to prevent interpreting list as bash cmd
• 042e4bf7 - ci: Quote the list elements as packer requires it
• f3dd0a88 - ci: Sort image list by creation time to prepare for cleanup
• 8d2ba6cd - ci: Run cleanup_img job only for the img builds

Compare with previous version

changed title from ci: Add Job to cleanup older images after build to ci: Add Job to cleanup older images for all builds

added 1 commit

• c64bdc9e - ci: Do not run cleanup_img job if the build fails

Compare with previous version

mentioned in issue #268

added 1 commit

• 687f6a47 - feat: updating tags to be generated first and have naming follow after

Compare with previous version