Lachlan Evenson
f26a5a8cf4
* initial commit * update NOTES.txt, enable cluster by default * update default etcd version add README rename default values update NOTES.txt * add quotes to app label value * disable cluster by default as TPR get's created by operator * update PV provisioner comments
CoreOS etcd-operator
etcd-operator Simplify etcd cluster configuration and management.
DISCLAIMER: While this chart has been well-tested, the etcd-operator is still currently in alpha. Current project status is available here
Introduction
This chart bootstraps an etcd-operator and allows the deployment of etcd-cluster(s).
Official Documentation
Official project documentation found here
Prerequisites
- Kubernetes 1.4+ with Beta APIs enabled
- Suggested: PV provisioner support in the underlying infrastructure to support backups
Installing the Chart
To install the chart with the release name my-release:
$ helm install stable/etcd-operator --name my-release
Uninstalling the Chart
To uninstall/delete the my-release deployment:
$ helm delete my-release
The command removes all the Kubernetes components EXCEPT the persistent volume.
Updating
Updating the TPR resource will not result in the cluster being update until kubectl apply for
TPRs is fixed see kubernetes/issues/29542
Work around options are documented here
Configuration
The following tables lists the configurable parameters of the etcd-operator chart and their default values.
| Parameter | Description | Default |
|---|---|---|
replicaCount |
Number of etcd-operator replicas to create (only 1 is supported) | 1 |
image.repository |
etcd-operator container image | quay.io/coreos/etcd-operator |
image.tag |
etcd-operator container image tag | latest |
image.pullPolicy |
etcd-operator container image pull policy | IfNotPresent |
resources.limits.cpu |
CPU limit per etcd-operator pod | 100m |
resources.limits.memory |
Memory limit per etcd-operator pod | 128Mi |
resources.requests.cpu |
CPU request per etcd-operator pod | 100m |
resources.requests.memory |
Memory request per etcd-operator pod | 128Mi |
cluster.enabled |
Whether to enable provisioning of and etcd-cluster | true |
cluster.name |
etcd cluster name | etcd-cluster |
cluster.version |
etcd cluster version | v3.1.0-rc.0 |
cluster.size |
etcd cluster size | 3 |
cluster.backup.enabled |
Whether to create PV for cluster backups | true |
cluster.backup.provisioner |
Which PV provisioner to use | kubernetes.io/gce-pd (kubernetes.io/aws-ebs) |
cluster.backup.config.snapshotIntervalInSecond |
etcd snapshot interval in seconds | 30 |
cluster.backup.config.maxSnapshot |
maximum number of snapshots to keep | 5 |
cluster.backup.config.volumeSizeInMB |
size of backup PV | 512MB |
cluster.backup.config.storageType |
Type to storage to provision | PersistentVolume |
Specify each parameter using the --set key=value[,key=value] argument to helm install. For example:
$ helm install --name my-release --set cluster.version=v3.1.0-alpha.1 stable/etcd-operator
Alternatively, a YAML file that specifies the values for the parameters can be provided while installing the chart. For example:
$ helm install --name my-release --values values.yaml stable/etcd-operator