History

Jeff Grafton 1b503e0e3d Use the pkg_tar wrapper from kubernetes/repo-infra		2018-01-18 17:10:16 -08:00
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addon-manager	bump addon version in makefile	2018-01-17 12:53:27 -05:00
calico-policy-controller	Revert k8s.gcr.io vanity domain	2017-12-22 14:36:16 -08:00
cluster-loadbalancing	Update defaultbackend image to 1.4 and deployment apiVersion to apps/v1	2018-01-05 11:09:54 +08:00
cluster-monitoring	Fix errors in Heapster deployment for google sink	2018-01-05 17:37:56 +01:00
dashboard	Revert k8s.gcr.io vanity domain	2017-12-22 14:36:16 -08:00
device-plugins/nvidia-gpu	Update nvidia-gpu-device-plugin addon.	2017-12-12 20:53:27 -08:00
dns	Update kube-dns to 1.14.8	2018-01-05 15:00:40 -08:00
dns-horizontal-autoscaler	Revert k8s.gcr.io vanity domain	2017-12-22 14:36:16 -08:00
etcd-empty-dir-cleanup	Revert k8s.gcr.io vanity domain	2017-12-22 14:36:16 -08:00
fluentd-elasticsearch	Merge pull request #58419 from coffeepac/apps-api-stable	2018-01-18 05:07:30 -08:00
fluentd-gcp	Bump fluentd-gcp version	2018-01-12 10:16:13 -08:00
ip-masq-agent	Revert k8s.gcr.io vanity domain	2017-12-22 14:36:16 -08:00
kube-proxy	Add wildcard tolerations to kube-proxy.	2017-11-29 12:36:58 -08:00
metadata-agent	Fix configuration of Metadata Agent daemon set	2017-11-29 15:30:36 +01:00
metadata-proxy	Bump metadata proxy and test versions	2018-01-02 11:40:10 -08:00
metrics-server	Merge pull request #58391 from kawych/ms_reduction	2018-01-18 06:06:41 -08:00
node-problem-detector	Revert k8s.gcr.io vanity domain	2017-12-22 14:36:16 -08:00
python-image	Revert k8s.gcr.io vanity domain	2017-12-22 14:36:16 -08:00
rbac	gce: split legacy kubelet node role binding and bootstrapper role binding	2017-12-13 21:56:18 -05:00
registry	Revert k8s.gcr.io vanity domain	2017-12-22 14:36:16 -08:00
storage-class	[addon/storage-class] update storageclass groupversion in storage-class	2017-10-22 19:50:47 +08:00
BUILD	Use the pkg_tar wrapper from kubernetes/repo-infra	2018-01-18 17:10:16 -08:00
README.md	Updated cluster/addons readme to match and point to docs	2017-10-18 10:36:24 -04:00

README.md

Legacy Cluster add-ons

For more information on add-ons see the documentation.

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.