a sane ecr lifecycle policy

apply_ecr_lifecycle_policy.sh

#!/bin/bash
LIFECYCLE_POLICY='{"rules":[{"rulePriority":10,"description":"keeps 50 latest tagged images","selection":{"tagStatus":"tagged","countType":"imageCountMoreThan","countNumber":50,"tagPrefixList":["v"]},"action":{"type":"expire"}},{"rulePriority":20,"description":"keeps 5 latest untagged images","selection":{"tagStatus":"untagged","countType":"imageCountMoreThan","countNumber":5},"action":{"type":"expire"}},{"rulePriority":30,"description":"keeps latest 20 numeric-tagged images","selection":{"tagStatus":"tagged","countType":"imageCountMoreThan","tagPrefixList":["0","1","2","3","4","5","6","7","8","9"],"countNumber":20},"action":{"type":"expire"}},{"rulePriority":40,"description":"keeps latest 20 a-f tagged images","selection":{"tagStatus":"tagged","countType":"imageCountMoreThan","tagPrefixList":["a","b","c","d","e","f"],"countNumber":20},"action":{"type":"expire"}}]}'
aws ecr put-lifecycle-policy --region ${AWS_REGION} --repository-name ${REPO} --lifecycle-policy-text ${LIFECYCLE_POLICY} || echo "Failed to put lifecycle policy on ${REPO} repo"

Looks sane, but probably doesn't work as expected because each of the items in tagPrefixList have to match to image. I.e. rules are combined using AND logic, not OR logic.

Thanks @ronkot The AND logic does not make any sense since each image tag obviously has 1 prefix. It should/must go with OR instead