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From "Qian Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MESOS-5578) Support static address allocation in CNI
Date Thu, 09 Jun 2016 23:58:20 GMT

    [ https://issues.apache.org/jira/browse/MESOS-5578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15323626#comment-15323626
] 

Qian Zhang commented on MESOS-5578:
-----------------------------------

[~avinash@mesosphere.io], in [CNI spec | https://github.com/containernetworking/cni/blob/master/SPEC.md#parameters],
there is parameter "CNI_ARGS" which can be used to pass extra argument to the CNI plugin,
and I see the [host-local | https://github.com/containernetworking/cni/blob/master/Documentation/host-local.md#supported-arguments]
IPAM plugin has already supported "CNI_ARGS" with which user can specify an IP that he/she
wants to assign to the container.

So for any CNI networks which uses host-local IPAM plugin, they will support static IP address
allocation.

> Support static address allocation in CNI
> ----------------------------------------
>
>                 Key: MESOS-5578
>                 URL: https://issues.apache.org/jira/browse/MESOS-5578
>             Project: Mesos
>          Issue Type: Task
>          Components: containerization
>    Affects Versions: 1.0.0
>         Environment: Linux
>            Reporter: Avinash Sridharan
>            Assignee: Avinash Sridharan
>              Labels: mesosphere
>
> Currently a framework can't specify a static IP address for the container when using
the network/cni isolator.
> The `ipaddress` field in the `NetworkInfo` protobuf was designed for this specific purpose
but since the CNI spec does not specify a means to allocate an IP address to the container
the `network/cni` isolator cannot honor this field even when it is filled in by the framework.
> Creating this ticket to act as a place holder to track this limitation. As and when the
CNI spec allows us to specify a static IP address for the container, we can resolve this ticket.




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