registry garbage collection
The registry job that deletes image layers no tag or manifest refers to any more, freeing storage.
In more detail
Deleting a tag only removes a reference; space returns when garbage collection runs. DTR and MSR schedule it, and the open source registry runs it with registry garbage-collect.
Related terms
- Docker Trusted Registry — The old name of Mirantis Secure Registry, the private image registry that runs alongside UCP.
Taught in
- Our Own Registry: Deploy, Push, Pull, Search And Delete — Docker Certified Associate (DCA) Exam Prep
- Images Sprint: Eight Questions On Builds, Tags And Registries — Docker Certified Associate (DCA) Exam Prep
- Orders That Vanished: Volumes, Shared Storage And Cleanup — Docker Certified Associate (DCA) Exam Prep
- Storage Sprint: Eight Questions On Layers, Drivers And Volumes — Docker Certified Associate (DCA) Exam Prep
- The Night Before: Final Review And Exam Day — Docker Certified Associate (DCA) Exam Prep