I would like to propose having labels for non-container resources. To start with, these would include:

• Networks
• Volumes
• Images (post build)?

For networks and volumes the same syntax as containers could be used. For example:

docker volume create -d local --label env=staging --label backup=1 redis-data

docker network create -d overlay --label env=staging --label app=test-app-v0 backend

For images, it would be best to have something like #18958 to add labels. However, update support / image labels might be out of scope for this proposal.