Hi Marcus, The CNI Spec you are seeing is the latest SPEC of v0.3 . Mesos currently supports v0.2 and below. You can check out the by looking at the "tags" in the CNI repo. For e.g., https://github.com/containernetworking/cni/blob/v0.4.0/SPEC.md
We have tickets open to support SPEC v0.3. Hopefully we can get to it pretty soon. https://issues.apache.org/jira/browse/MESOS-7175 On Fri, Mar 17, 2017 at 11:33 AM, Marcus <shadow...@gmail.com> wrote: > Hi, > I've been working on potentially building a custom CNI plugin. I'm > following the spec found here: > > https://github.com/containernetworking/cni/blob/master/SPEC.md > > I've found that the documented JSON result for the ADD command doesn't > result in Mesos or upstream frameworks being able to identify the assigned > IP. That is, there is no IP showing at the Mesos API level. This might just > be a misunderstanding or configuration issue on my part, but input would be > appreciated. > > Looking at > "src/slave/containerizer/mesos/isolators/network/cni/spec.proto", I > guessed > that I should be returning a different structure, and that structure works. > I don't see this structure explicitly documented anywhere, but the primary > difference is that there's an "ip" array in the documented spec, and an > "ip4" object in the working version. > > One thing I did notice is per the spec document it shows a prevResult in > the format that works for me. > > I am using master, I'll roll back to maybe the 1.1.1 RC (since it is > getting attention now on the mailing list) and see if the behavior is any > different. > > Here's my JSON that I believe matches the spec but doesn't show the IP in > the Mesos frontend: > > { > "cniVersion": "0.3.0", > "interfaces": [ > { > "name": "eth0", > "mac": "36:c0:43:08:97:f7", > "sandbox": "" > } > ], > "ip": [ > { > "version": "4", > "address": "10.1.10.170/24", > "gateway": "10.10.10.1", > "interface": 0 > } > ], > "dns": { > "nameservers": [ > "10.10.10.1" > ] > } > } > > And here's the modified JSON that is working: > > { > "cniVersion": "0.3.0", > "interfaces": [ > { > "name": "eth0", > "mac": "36:c0:43:08:97:f7", > "sandbox": "" > } > ], > "ip4": { > "ip": "10.10.10.170/24", > "gateway": "10.10.10.1", > "interface": 0 > }, > "dns": { > "nameservers": [ > "10.10.10.1" > ] > } > } > -- Avinash Sridharan, Mesosphere +1 (323) 702 5245
