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k3s/cluster/addons
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Jeff Grafton 4c7c865ff6 Update fluentd-gcp to 2.0.7 2017-06-21 14:08:12 -07:00
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addon-manager Update to kube-addon-manager:v6.4-beta.2: new kubectl and base images 2017-06-12 19:28:23 -07:00
calico-policy-controller Set Typha replica count to 0 when Calico is not enabled 2017-06-19 11:08:17 -07:00
cluster-loadbalancing Update docs/ URLs to point to proper locations 2017-06-05 22:13:54 -07:00
cluster-monitoring Replace todo-grabbag binding w/ more specific heapster roles/bindings. 2017-06-06 09:03:09 -07:00
dashboard Update dashboard-controller.yaml 2017-05-17 14:12:12 +02:00
dns Update kube-dns version to 1.14.2 2017-05-11 12:29:00 -07:00
dns-horizontal-autoscaler Update cluster-proportional-autoscaler-amd64 to 1.1.2-r2 2017-06-14 12:42:23 -07:00
etcd-empty-dir-cleanup make all static system pods critical 2017-06-12 15:22:04 -07:00
fluentd-elasticsearch Update fluentd-es-ds.yaml 2017-05-29 19:09:57 +02:00
fluentd-gcp Update fluentd-gcp to 2.0.7 2017-06-21 14:08:12 -07:00
ip-masq-agent Add ip-masq-agent readiness label by default. Since we are 2017-06-20 16:19:50 -07:00
metadata-proxy Update metadata-proxy to 0.1.1 2017-06-14 13:31:47 -07:00
node-problem-detector Bump up npd version to v0.4.0 2017-06-06 16:30:02 -07:00
podsecuritypolicies default policy 2016-05-11 18:07:36 -04:00
python-image Always --pull in docker build to ensure recent base images 2017-01-10 16:21:05 -08:00
rbac Auto approve kubelet certificate signing requests. 2017-06-16 08:47:12 -07:00
registry Update docs/ URLs to point to proper locations 2017-06-05 22:13:54 -07:00
storage-class Support running StatefulSetBasic e2e tests with local-up-cluster 2017-04-28 15:10:22 -04:00
BUILD Replace git_repository with http_archive and use ixdy's fork of bazel tools for pkg_tar 2017-05-03 10:13:06 -07:00
README.md Updates READMEs regarding the new behavior of addon-manager 2017-02-24 16:42:41 -08:00

README.md

Cluster add-ons

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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