History

Pavithra Ramesh 069381edec Bump up the kube-dns version to 1.15.10		2020-05-04 16:14:53 -07:00
..
addon-manager	Merge pull request #85923 from MrHohn/sig-gcp-owner-file	2020-04-02 19:03:46 -07:00
calico-policy-controller	Merge pull request #84163 from david-tigera/update-calico-v3.8.4	2020-01-09 11:32:34 -08:00
cluster-loadbalancing	The default-http-backend for handling 404 pages will now point to 404 handler	2019-06-17 11:24:47 -07:00
dashboard	Replace Beta OS/arch labels with the GA ones	2020-02-13 09:38:51 -08:00
device-plugins/nvidia-gpu	feat: cleanup pod critical pod annotations feature	2019-08-09 08:41:23 +08:00
dns	Bump up the kube-dns version to 1.15.10	2020-05-04 16:14:53 -07:00
dns-horizontal-autoscaler	Replace Beta OS/arch labels with the GA ones	2020-02-13 09:38:51 -08:00
fluentd-elasticsearch	cluster add-ons: fluentd: update gems.	2020-03-24 08:59:13 +01:00
fluentd-gcp	Merge pull request #85923 from MrHohn/sig-gcp-owner-file	2020-04-02 19:03:46 -07:00
ip-masq-agent	added nodeSelector to constrain it to Linux only	2020-02-14 12:44:17 -08:00
kube-proxy	Replace Beta OS/arch labels with the GA ones	2020-02-13 09:38:51 -08:00
metadata-agent	Merge pull request #83363 from wawa0210/zx-metadata-agent	2019-12-09 03:10:16 -08:00
metadata-proxy	Replace Beta OS/arch labels with the GA ones	2020-02-13 09:38:51 -08:00
metrics-server	Merge pull request #86065 from serathius/metrics-server-owners	2019-12-09 04:56:02 -08:00
node-problem-detector	let standalone npd use kubelet credentials	2019-11-08 14:50:41 -08:00
rbac	Update addon permissions	2019-12-13 12:23:39 -05:00
storage-class	Merge pull request #75638 from ramnar/bugfix_24thMarch	2019-06-20 06:54:49 -07:00
volumesnapshots	VolumeSnapshot CRD v1beta1: Enable VolumeSnapshotDataSource feature gate and update e2e tests	2019-11-11 02:34:24 +00:00
BUILD	Update repo-infra, bazel-skylib, rules_docker, and rules_go dependencies	2019-02-12 17:55:10 -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.