spark-operator-chart

spark-operator

A Helm chart for Spark on Kubernetes operator

Introduction

This chart bootstraps a Kubernetes Operator for Apache Spark deployment using the Helm package manager.

Prerequisites

• Helm >= 3
• Kubernetes >= 1.16

Previous Helm Chart

The previous spark-operator Helm chart hosted at helm/charts has been moved to this repository in accordance with the Deprecation timeline. Note that a few things have changed between this version and the old version:

• This repository only supports Helm chart installations using Helm 3+ since the apiVersion on the chart has been marked as v2.
• Previous versions of the Helm chart have not been migrated, and the version has been set to 1.0.0 at the onset. If you are looking for old versions of the chart, it's best to run helm pull incubator/sparkoperator --version <your-version> until you are ready to move to this repository's version.
• Several configuration properties have been changed, carefully review the values section below to make sure you're aligned with the new values.

Installing the chart

$ helm repo add spark-operator https://googlecloudplatform.github.io/spark-on-k8s-operator

$ helm install my-release spark-operator/spark-operator

This will create a release of spark-operator in the default namespace. To install in a different one:

$ helm install -n spark my-release spark-operator/spark-operator

Note that helm will fail to install if the namespace doesn't exist. Either create the namespace beforehand or pass the --create-namespace flag to the helm install command.

Uninstalling the chart

To uninstall my-release:

$ helm uninstall my-release

The command removes all the Kubernetes components associated with the chart and deletes the release, except for the crds, those will have to be removed manually.

Test the chart

Install chart-testing cli

In Mac OS, you can just:

pip install yamale
pip install yamllint
brew install chart-testing

Run ct lint and Verify All charts linted successfully

Chart version ok.
Validating /Users/chethanuk/Work/Github/Personal/spark-on-k8s-operator-1/charts/spark-operator-chart/Chart.yaml...
Validation success! 👍
Validating maintainers...
==> Linting charts/spark-operator-chart
[INFO] Chart.yaml: icon is recommended

1 chart(s) linted, 0 chart(s) failed
------------------------------------------------------------------------------------------------------------------------
 ✔︎ spark-operator => (version: "1.1.0", path: "charts/spark-operator-chart")
------------------------------------------------------------------------------------------------------------------------
All charts linted successfully

Values

Key	Type	Default	Description
affinity	object	{}	Affinity for pod assignment
batchScheduler.enable	bool	false	Enable batch scheduler for spark jobs scheduling. If enabled, users can specify batch scheduler name in spark application
controllerThreads	int	10	Operator concurrency, higher values might increase memory usage
fullnameOverride	string	""	String to override release name
image.pullPolicy	string	"IfNotPresent"	Image pull policy
image.repository	string	"gcr.io/spark-operator/spark-operator"	Image repository
image.tag	string	""	if set, override the image tag whose default is the chart appVersion.
imagePullSecrets	list	[]	Image pull secrets
ingressUrlFormat	string	""	Ingress URL format. Requires the UI service to be enabled by setting uiService.enable to true.
istio.enabled	bool	false	When using istio, spark jobs need to run without a sidecar to properly terminate
labelSelectorFilter	string	""	A comma-separated list of key=value, or key labels to filter resources during watch and list based on the specified labels.
leaderElection.lockName	string	"spark-operator-lock"	Leader election lock name. Ref: https://github.com/GoogleCloudPlatform/spark-on-k8s-operator/blob/master/docs/user-guide.md#enabling-leader-election-for-high-availability.
leaderElection.lockNamespace	string	""	Optionally store the lock in another namespace. Defaults to operator's namespace
logLevel	int	2	Set higher levels for more verbose logging
metrics.enable	bool	true	Enable prometheus metric scraping
metrics.endpoint	string	"/metrics"	Metrics serving endpoint
metrics.port	int	10254	Metrics port
metrics.portName	string	"metrics"	Metrics port name
metrics.prefix	string	""	Metric prefix, will be added to all exported metrics
nameOverride	string	""	String to partially override spark-operator.fullname template (will maintain the release name)
nodeSelector	object	{}	Node labels for pod assignment
podAnnotations	object	{}	Additional annotations to add to the pod
podLabels	object	{}	Additional labels to add to the pod
podMonitor	object	{"enable":false,"jobLabel":"spark-operator-podmonitor","labels":{},"podMetricsEndpoint":{"interval":"5s","scheme":"http"}}	Prometheus pod monitor for operator's pod.
podMonitor.enable	bool	false	If enabled, a pod monitor for operator's pod will be submitted. Note that prometheus metrics should be enabled as well.
podMonitor.jobLabel	string	"spark-operator-podmonitor"	The label to use to retrieve the job name from
podMonitor.labels	object	{}	Pod monitor labels
podMonitor.podMetricsEndpoint	object	{"interval":"5s","scheme":"http"}	Prometheus metrics endpoint properties. metrics.portName will be used as a port
podSecurityContext	object	{}	Pod security context
rbac.create	bool	false	DEPRECATED use createRole and createClusterRole
rbac.createClusterRole	bool	true	Create and use RBAC ClusterRole resources
rbac.createRole	bool	true	Create and use RBAC Role resources
replicaCount	int	1	Desired number of pods, leaderElection will be enabled if this is greater than 1
resourceQuotaEnforcement.enable	bool	false	Whether to enable the ResourceQuota enforcement for SparkApplication resources. Requires the webhook to be enabled by setting webhook.enable to true. Ref: https://github.com/GoogleCloudPlatform/spark-on-k8s-operator/blob/master/docs/user-guide.md#enabling-resource-quota-enforcement.
resources	object	{}	Pod resource requests and limits Note, that each job submission will spawn a JVM within the Spark Operator Pod using "/usr/local/openjdk-11/bin/java -Xmx128m". Kubernetes may kill these Java processes at will to enforce resource limits. When that happens, you will see the following error: 'failed to run spark-submit for SparkApplication [...]: signal: killed' - when this happens, you may want to increase memory limits.
resyncInterval	int	30	Operator resync interval. Note that the operator will respond to events (e.g. create, update) unrelated to this setting
securityContext	object	{}	Operator container security context
serviceAccounts.spark.annotations	object	{}	Optional annotations for the spark service account
serviceAccounts.spark.create	bool	true	Create a service account for spark apps
serviceAccounts.spark.name	string	""	Optional name for the spark service account
serviceAccounts.sparkoperator.annotations	object	{}	Optional annotations for the operator service account
serviceAccounts.sparkoperator.create	bool	true	Create a service account for the operator
serviceAccounts.sparkoperator.name	string	""	Optional name for the operator service account
sparkJobNamespace	string	""	Set this if running spark jobs in a different namespace than the operator
tolerations	list	[]	List of node taints to tolerate
uiService.enable	bool	true	Enable UI service creation for Spark application
webhook.cleanupAnnotations	object	{"helm.sh/hook":"pre-delete, pre-upgrade","helm.sh/hook-delete-policy":"hook-succeeded"}	The annotations applied to the cleanup job, required for helm lifecycle hooks
webhook.enable	bool	false	Enable webhook server
webhook.initAnnotations	object	{"helm.sh/hook":"pre-install, pre-upgrade","helm.sh/hook-weight":"50"}	The annotations applied to init job, required to restore certs deleted by the cleanup job during upgrade
webhook.namespaceSelector	string	""	The webhook server will only operate on namespaces with this label, specified in the form key1=value1,key2=value2. Empty string (default) will operate on all namespaces
webhook.port	int	8080	Webhook service port
webhook.timeout	int	30

Maintainers

Name	Email	Url
yuchaoran2011	yuchaoran2011@gmail.com