History

Arve Knudsen 2e07db1de5 add-on fluentd-elasticsearch: Add missing fluentd-es-ds selector		2017-11-28 18:13:45 +01:00
..
addon-manager	Merge branch 'master' into addon-manager	2017-11-14 09:36:20 +01:00
calico-policy-controller	Add optional addon PSPs	2017-11-10 13:57:33 -08:00
cluster-loadbalancing	Update OWNERS files for networking components	2017-08-03 11:08:54 -07:00
cluster-monitoring	Merge pull request #56151 from kawych/heapster_deployment	2017-11-22 21:48:51 -08:00
dashboard	update dashboard image version	2017-07-31 11:08:08 +08:00
device-plugins/nvidia-gpu	Changes nvidia-gpu device plugin addon config settings:	2017-11-20 17:32:53 -08:00
dns	create fn for dns manifests	2017-11-15 11:35:05 -05:00
dns-horizontal-autoscaler	Merge kube-dns-autoscaler templates into a single file	2017-10-03 09:43:57 -07:00
etcd-empty-dir-cleanup	Add optional addon PSPs	2017-11-10 13:57:33 -08:00
fluentd-elasticsearch	add-on fluentd-elasticsearch: Add missing fluentd-es-ds selector	2017-11-28 18:13:45 +01:00
fluentd-gcp	Fix typo in component name of prometheus-to-sd config.	2017-11-28 09:02:08 +01:00
ip-masq-agent	Add optional addon PSPs	2017-11-10 13:57:33 -08:00
kube-proxy	Merge pull request #52003 from vfreex/mount-lib-modules	2017-10-25 11:38:36 -07:00
metadata-agent	Add deployment for Stackdriver Metadata Agent with version and resource requirement controlled by env variable	2017-11-22 16:21:52 +01:00
metadata-proxy	Pass pod name and namespace argss to prom-to-sd sidecar of metadata-proxy	2017-11-14 16:52:55 +01:00
metrics-server	Adjust resources for Metrics Server	2017-10-31 10:42:00 +01:00
node-problem-detector	Reorganize addon PodSecurityPolicies	2017-11-10 13:57:32 -08:00
python-image	…
rbac	gce: readd kubelet-bootstrap to kubelet user	2017-11-14 13:46:08 -08:00
registry	fix invalid url link	2017-08-24 18:50:14 +08:00
storage-class	[addon/storage-class] update storageclass groupversion in storage-class	2017-10-22 19:50:47 +08:00
BUILD	Run hack/update-bazel.sh to generate BUILD files	2017-08-02 18:33:25 -07:00
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.