Add glide.yaml and vendor deps

vendor/k8s.io/kubernetes/federation/README.md

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+# Cluster Federation
+
+Kubernetes Cluster Federation enables users to federate multiple
+Kubernetes clusters. Please see the [user guide](http://kubernetes.io/docs/user-guide/federation/federated-services/)
+and the [admin guide](http://kubernetes.io/docs/admin/federation/)
+for more details about setting up and using the Cluster Federation.
+
+# Building Kubernetes Cluster Federation
+
+Please see the [Kubernetes Development Guide](https://github.com/kubernetes/kubernetes/blob/master/docs/devel/development.md)
+for initial setup. Once you have the development environment setup
+as explained in that guide, you also need to install [`jq`](https://stedolan.github.io/jq/download/)
+<!-- TODO(madhusudancs): Re-evaluate using jq even in the development
+     environment. There is a concern that adding more tools as dependencies
+     might lead to proliferation of tools one need to install to develop
+     Kubernetes. jq is already a dependency for kubernetes-anywhere on
+     which this workflow depends, so we are giving an exception to jq
+     for now. -->
+
+Building cluster federation artifacts should be as simple as running:
+
+```shell
+make build
+```
+
+You can specify the docker registry to tag the image using the
+KUBE_REGISTRY environment variable. Please make sure that you use
+the same value in all the subsequent commands.
+
+To push the built docker images to the registry, run:
+
+```shell
+make push
+```
+
+To initialize the deployment run:
+
+(This pulls the installer images)
+
+```shell
+make init
+```
+
+To deploy the clusters and install the federation components, edit the
+`${KUBE_ROOT}/_output/federation/config.json` file to describe your
+clusters and run:
+
+```shell
+make deploy
+```
+
+To turn down the federation components and tear down the clusters run:
+
+```shell
+make destroy
+```
+
+# Ideas for improvement
+
+1. Continue with `destroy` phase even in the face of errors.
+
+   The bash script sets `set -e errexit` which causes the script to exit
+   at the very first error. This should be the default mode for deploying
+   components but not for destroying/cleanup.
+
+
+[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/federation/README.md?pixel)]()