[MESOS-2824] Support pre-fetching images

• Type: Improvement
• Status: Reviewable
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 0.23.0
• Component/s: containerization
• Labels: mesosphere twitter
• Epic Link: Unified Container
• Sprint: Twitter Mesos Q2 Sprint 5
• Story Points: 5
• Assignee: Unassigned
• Reporter: Ian Downes
• Shepherd: Ian Downes
• Created: 07/Jun/15 05:33
• Updated: 25/Mar/21 21:16

Description

Default container images can be specified with the --default_container_info flag to the slave. This may be a large image that will take a long time to initially fetch/hash/extract when the first container is provisioned. Add optional support to start fetching the image when the slave starts and consider not registering until the fetch is complete.

To extend that, we should support an operator endpoint so that operators can specify images to pre-fetch.

Issue Links

• is related to: MESOS-4945 Garbage collect unused docker layers in the store.
• is related to: MESOS-3424 Support fetching AppC images into the store