History

Kubernetes Prow Robot 082883cba3 Merge pull request #83362 from wawa0210/zx-metrics Bind metrics-server containers to linux nodes to avoid Windows scheduling on kubernetes cluster includes linux nodes and windows nodes		2019-12-09 03:10:02 -08:00
..
addon-manager	Addon Manager: Fix parsing KUBECTL_EXTRA_PRUNE_WHITELIST	2019-11-18 10:41:53 +01:00
calico-policy-controller	Clean up cluster-service label from calico-policy-controller	2019-11-14 17:32:57 +02:00
cluster-loadbalancing	The default-http-backend for handling 404 pages will now point to 404 handler	2019-06-17 11:24:47 -07:00
cluster-monitoring	Switch addon resizer to 1.8.7	2019-11-29 16:50:51 +01:00
dashboard	Rename dashboard-controller.yaml to dashboard-deployment.yaml	2019-10-15 13:55:06 +03:00
device-plugins/nvidia-gpu	feat: cleanup pod critical pod annotations feature	2019-08-09 08:41:23 +08:00
dns	Merge pull request #85109 from rajansandeep/prepcorednsfor1.17-kube-up	2019-11-13 13:03:30 -08:00
dns-horizontal-autoscaler	added nodeSelector: beta.kubernetes.io/os: linux	2019-11-08 16:06:28 -08:00
fluentd-elasticsearch	correct invalid urls	2019-12-06 23:34:34 +08:00
fluentd-gcp	Introduce sig-instrumentation aliases in OWNERS_ALISES and simplify OWNERS files	2019-10-10 14:04:20 +02:00
ip-masq-agent	Prune inactive members from cluster/* OWNERS files.	2019-10-12 16:55:52 -04:00
kube-proxy	Add linux selector to kube-proxy yaml.	2019-11-01 15:05:22 -07:00
metadata-agent	Introduce sig-instrumentation aliases in OWNERS_ALISES and simplify OWNERS files	2019-10-10 14:04:20 +02:00
metadata-proxy	feat: cleanup pod critical pod annotations feature	2019-08-09 08:41:23 +08:00
metrics-server	Merge pull request #83362 from wawa0210/zx-metrics	2019-12-09 03:10:02 -08:00
node-problem-detector	let standalone npd use kubelet credentials	2019-11-08 14:50:41 -08:00
rbac	Make cluster auto scaler use leases	2019-11-29 13:58:24 +01:00
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.