Avinash Sridharan created MESOS-4487:
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Summary: Introduce getContainerConfig interface in `Containerizer`
Key: MESOS-4487
URL: https://issues.apache.org/jira/browse/MESOS-4487
Project: Mesos
Issue Type: Improvement
Components: containerization
Reporter: Avinash Sridharan
Assignee: Avinash Sridharan
In the Containerizer, during container isolation, the isolators end up
modifying the configuration of the containers in the prepare or the isolate
phase of launching the container. Examples would be IP address allocation to a
container by the 'network isolator, or net_cls handle allocation by the
cgroup/net_cls isolator.
Often times the configuration, applied to the container by the isolator, needs
to be exposed to operators through the state.json end-point. For e.g. operators
or frameworks might want to know the IP-address configured on a particular
container, or the net_cls handle associated with a container to configure the
right TC rules. However, at present, there is no clean interface for the slave
to retrieve the container config information from the Containerizer for any of
the launched containers. Thus, we need to introduce a `getContainerConfig`
interface in the `Containerizer` base class, in order for the slave to expose
container config information in its state.json.
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