Lans Carstensen created MESOS-2196:
--------------------------------------
Summary: Add option to Docker containerizer to check for adequate
disk space prior to "docker pull" on slave
Key: MESOS-2196
URL: https://issues.apache.org/jira/browse/MESOS-2196
Project: Mesos
Issue Type: Improvement
Affects Versions: 0.20.1
Reporter: Lans Carstensen
This is a request for a flag similar in nature to
https://reviews.apache.org/r/28190/ to ensure that there is adequate disk space
on a mesos-slave prior to attempting to download a Docker image. This would
avoid negatively impacting running tasks/containers and/or running a system out
of disk space since this machine resource is currently unmanaged.
If space is unavailable to run a particular task, It would be desirable to be
able to invoke a preconfigured space reclamation workflow on the slave.
Regarding implementation on the slave, one would have to query the /info
endpoint to find storage information from the Docker storage driver. My
particular use case is with devicemapper. One then has to resolve the list of
image layers associated with a particular image tag, remove the list of layers
already downloaded, and then query the registry for each layer's size to
determine if all layers can be downloaded.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
