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Kubernetes Submit Queue bebfdbb2cd Merge pull request #42802 from lukaszo/typo 
Automatic merge from submit-queue (batch tested with PRs 42802, 42927, 42669, 42988, 43012)

Fix typo in kubedns-controller.yaml.sed

cc @MrHohn
 		2017-03-14 07:31:29 -07:00
..
addon-manager Bump addon-manager to v6.4-beta.1 2017-03-08 16:08:39 -08:00
calico-policy-controller Adds the new addon-manager labels on cluster addon templates 2017-02-24 16:53:12 -08:00
cluster-loadbalancing Merge pull request #42212 from timstclair/defaultbackend 2017-03-01 15:30:40 -08:00
cluster-monitoring Update addons yaml files. 2017-02-27 09:21:59 -05:00
dashboard Update addons yaml files. 2017-02-27 09:21:59 -05:00
dns Fix typo in kubedns-controller.yaml.sed 2017-03-09 14:01:07 +01:00
dns-horizontal-autoscaler Bump cluster-proportional-autoscaler to 1.1.1-r2 2017-03-10 16:37:35 -08:00
e2e-rbac-bindings Adds the new addon-manager labels on cluster addon templates 2017-02-24 16:53:12 -08:00
etcd-empty-dir-cleanup Bump etcd-empty-dir-cleanup to 3.0.14.0 2017-02-22 13:22:04 -08:00
fluentd-elasticsearch Merge pull request #42630 from anguslees/elasticsearch 2017-03-10 16:21:20 -08:00
fluentd-gcp Enable RollingUpdates for the fluentd daemonset addon 2017-03-13 10:51:45 -07:00
node-problem-detector Merge pull request #41949 from Random-Liu/collect-npd-log 2017-03-01 04:10:08 -08:00
podsecuritypolicies
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python-image Always --pull in docker build to ensure recent base images 2017-01-10 16:21:05 -08:00
rbac Adds the new addon-manager labels on cluster addon templates 2017-02-24 16:53:12 -08:00
registry Adds the new addon-manager labels on cluster addon templates 2017-02-24 16:53:12 -08:00
storage-class Merge pull request #41854 from vmware/default-storage-class.kerneltime 2017-02-25 05:02:52 -08:00
BUILD Build release tarballs in bazel and add `make bazel-release` rule 2017-01-13 16:17:44 -08:00
README.md Updates READMEs regarding the new behavior of addon-manager 2017-02-24 16:42:41 -08:00

README.md

Cluster add-ons

Overview

Cluster add-ons are resources like Services and Deployments (with pods) that are shipped with the Kubernetes binaries and are considered an inherent part of the Kubernetes clusters.

There are currently two classes of add-ons:

  • Add-ons that will be reconciled.
  • Add-ons that will be created if they don't exist.

More details could be found in addon-manager/README.md.

Cooperating Horizontal / Vertical Auto-Scaling with "reconcile class addons"

"Reconcile" class addons will be periodically reconciled to the original state given by the initial config. In order to make Horizontal / Vertical Auto-scaling functional, the related fields in config should be left unset. More specifically, leave replicas in ReplicationController / Deployment / ReplicaSet unset for Horizontal Scaling, leave resources for container unset for Vertical Scaling. The periodic reconcile won't clobbered these fields, hence they could be managed by Horizontal / Vertical Auto-scaler.

Add-on naming

The suggested naming for most of the resources is <basename> (with no version number). Though resources like Pod, ReplicationController and DaemonSet are exceptional. It would be hard to update Pod because many fields in Pod are immutable. For ReplicationController and DaemonSet, in-place update may not trigger the underlying pods to be re-created. You probably need to change their names during update to trigger a complete deletion and creation.

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