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Kubernetes Submit Queue ca8d97d673 Merge pull request #53743 from DirectXMan12/feature/polymorphic-scale-client 
Automatic merge from submit-queue (batch tested with PRs 53743, 53564). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Polymorphic Scale Client

This PR introduces a polymorphic scale client based on discovery information that's able to scale scalable resources in arbitrary group-versions, as long as they present the scale subresource in their discovery information.

Currently, it supports `extensions/v1beta1.Scale` and `autoscaling/v1.Scale`, but supporting other versions of scale if/when we produce them should be fairly trivial.

It also updates the HPA to use this client, meaning the HPA will now work on any scalable resource, not just things in the `extensions/v1beta1` API group.

**Release note**:
```release-note
Introduces a polymorphic scale client, allowing HorizontalPodAutoscalers to properly function on scalable resources in any API group.
```

Unblocks #29698
Unblocks #38756
Unblocks #49504 
Fixes #38810
 		2017-10-23 13:39:07 -07:00
..
apis Update bazel 2017-10-18 17:24:04 +02:00
client update BUILD files 2017-10-15 18:18:13 -07:00
cluster Remove unnecessarily included scripts in federation deployment scripts 2017-09-26 10:41:18 +05:30
cmd update admission webhook to accept client config 2017-10-19 09:52:58 -04:00
deploy
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develop Use buildozer to delete licenses() rules except under third_party/ 2017-08-11 09:32:39 -07:00
docs/api-reference Merge pull request #49205 from dixudx/fix_api_type_typos 2017-10-03 20:17:43 -07:00
pkg Merge pull request #53743 from DirectXMan12/feature/polymorphic-scale-client 2017-10-23 13:39:07 -07:00
plugin/pkg/admission/schedulingpolicy Update bazel 2017-10-18 17:24:04 +02:00
registry/cluster Update bazel 2017-10-18 17:24:04 +02:00
test use multi-arch busybox for e2e 2017-10-19 10:36:31 +08:00
BUILD Auto generated build files 2017-09-28 11:43:35 +05:30
Makefile
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OWNERS Add irfanurrehman as approver for federation. 2017-08-07 12:55:28 -07:00
README.md fix bad url 2017-08-22 08:28:37 +08:00

README.md

Cluster Federation

Kubernetes Cluster Federation enables users to federate multiple Kubernetes clusters. Please see the user guide and the admin guide for more details about setting up and using the Cluster Federation.

Building Kubernetes Cluster Federation

Please see the Kubernetes Development Guide for initial setup. Once you have the development environment setup as explained in that guide, you also need to install jq

Building cluster federation artifacts should be as simple as running:

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:

make push

To initialize the deployment run:

(This pulls the installer images)

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:

make deploy

To turn down the federation components and tear down the clusters run:

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.

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