Extend kernel config to support dummy network interface and openvswitch with vxlan

[brb]

The missing configuration prevents Weave Net from running on minikube (weaveworks/weave#3124).

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[minikube-bot]

Can one of the admins verify this patch?

[dlorenc]

@minikube-bot OK to test

[brb]

Is there anything I can do about the CI failures?

[pgandhipfpt]

I built minikube after getting these changes . and then starting weavenet , container is showing "CrashLoopBackOff"

I am trying on mac Sierra .
These are the steps I did
a. I got changes on my mac in minikube folder
b.cd /Users/$NAME/go/src/k8s.io/minikube/
make
c ./out/minikube start
d. kubectl get pods --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system etcd-minikube 1/1 Running 0 1m
kube-system kube-addon-manager-minikube 1/1 Running 0 1m
kube-system kube-apiserver-minikube 1/1 Running 0 1m
kube-system kube-controller-manager-minikube 1/1 Running 0 1m
kube-system kube-dns-86f4d74b45-md2m6 3/3 Running 0 1m
kube-system kube-proxy-9h8t5 1/1 Running 0 1m
kube-system kube-scheduler-minikube 1/1 Running 0 1m
kube-system kubernetes-dashboard-5498ccf677-kgflm 1/1 Running 0 1m
kube-system storage-provisioner 1/1 Running 0 1m

e.kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=$(kubectl version | base64 | tr -d '\n')"

f.kubectl get pods --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system etcd-minikube 1/1 Running 0 21m
kube-system kube-addon-manager-minikube 1/1 Running 0 21m
kube-system kube-apiserver-minikube 1/1 Running 0 21m
kube-system kube-controller-manager-minikube 1/1 Running 0 21m
kube-system kube-dns-86f4d74b45-md2m6 3/3 Running 0 22m
kube-system kube-proxy-9h8t5 1/1 Running 0 22m
kube-system kube-scheduler-minikube 1/1 Running 0 21m
kube-system kubernetes-dashboard-5498ccf677-kgflm 1/1 Running 0 22m
kube-system storage-provisioner 1/1 Running 0 22m
kube-system weave-net-nm7f2 1/2 CrashLoopBackOff 8 16m

To verify that I have this fix, I tried this

grep CONFIG_DUMMY ./deploy/iso/minikube-iso/board/coreos/minikube/linux-4.9_defconfig
CONFIG_DUMMY=m
grep CONFIG_OPENVSWITCH ./deploy/iso/minikube-iso/board/coreos/minikube/linux-4.9_defconfig
CONFIG_OPENVSWITCH=m

I am very new to k8s . Please let me know If I missed anything

[brb]

@pgandhipfpt Can you please open a new issue https://github.com/weaveworks/weave/issues/new? Please provide all requested information in the issue template and in addition, an output of zgrep OPENVSWITCH /proc/config.gz. Thanks.

[pgandhipfpt]

Thanks @brb . Opened weaveworks/weave#3318