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k3s/cluster/addons
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Kubernetes Submit Queue 2175199646
Merge pull request #56576 from kawych/master 
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Fix configuration of Metadata Agent daemon set

**What this PR does / why we need it**:
Fixes small errors in Stackdriver Metadata Agent configuration: port number and default version.

**Release note**:
```release-note
Fix port number and default Stackdriver Metadata Agent in daemon set configuration.
```
 		2017-12-04 17:57:44 -08:00
..
addon-manager bump kubectl version to 1.8.4 2017-11-30 07:17:10 +08:00
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 add-on to version 1.8.0 2017-11-28 17:53:02 +01:00
device-plugins/nvidia-gpu Update nvidia-gpu-device-plugin addon. 2017-11-30 17:40:30 -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 Add wildcard tolerations to kube-proxy. 2017-11-29 12:36:58 -08:00
ip-masq-agent Add optional addon PSPs 2017-11-10 13:57:33 -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 Configure metadata concealment iptables rules in node startup. 2017-11-28 14:08:57 -08:00
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.

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