Add spark-operator chart (#1061)

* add new chart folder

* fix some typos in webhook init job

* add helm-docs

* add more readme description

* remove kube version field

Makefile

@@ -40,3 +40,6 @@ build-api-docs:
 	-api-dir github.com/GoogleCloudPlatform/spark-on-k8s-operator/pkg/apis/sparkoperator.k8s.io/v1beta2 \
 	-template-dir hack/api-docs-template \
 	-out-file docs/api-docs.md
+
+helm-docs:
+	helm-docs -c ./charts

charts/spark-operator-chart/Chart.yaml

@@ -0,0 +1,11 @@
+apiVersion: v2
+name: spark-operator
+description: A Helm chart for Spark on Kubernetes operator
+version: 1.0.0
+appVersion: v1beta2-1.2.0-3.0.0
+keywords:
+  - spark
+home: https://github.com/GoogleCloudPlatform/spark-on-k8s-operator
+maintainers:
+  - name: yuchaoran2011
+    email: yuchaoran2011@gmail.com

charts/spark-operator-chart/README.md

@@ -0,0 +1,70 @@
+# spark-operator
+
+A Helm chart for Spark on Kubernetes operator
+
+## Introduction
+
+This chart bootstraps a [Kubernetes Operator for Apache Spark](https://github.com/GoogleCloudPlatform/spark-on-k8s-operator) deployment using the [Helm](https://helm.sh) package manager.
+
+## Prerequisites
+
+- Helm >= 3
+- Kubernetes >= 1.13
+
+## Previous Helm Chart
+
+The previous `spark-operator` Helm chart hosted at [helm/charts](https://github.com/helm/charts) has been moved to this repository in accordance with the [Deprecation timeline](https://github.com/helm/charts#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.
+
+## Installing the chart
+
+TBD
+
+## 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 | `""` | Overrides the image tag whose default is the chart appVersion. |
+| imagePullSecrets | list | `[]` | Image pull secrets |
+| ingressUrlFormat | string | `""` | Ingress URL format |
+| istio.enabled | bool | `false` | When using `istio`, spark jobs need to run without a sidecar to properly terminate |
+| 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 mertic scraping |
+| metrics.endpoint | string | `"/metrics"` | Metrics serving endpoint |
+| metrics.port | int | `10254` | Metrics port |
+| 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 |
+| podSecurityContext | object | `{}` | Pod security context |
+| rbac.create | bool | `true` | Create and use `rbac` 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 |
+| resyncInterval | int | `30` | Operator resync interval. Note that the operator will respond to events (e.g. create, update) unrealted to this setting |
+| securityContext | object | `{}` | Operator container security context |
+| 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.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 |
+| webhook.enable | bool | `false` | Enable webhook server |
+| 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 |
+
+## Maintainers
+
+| Name | Email | Url |
+| ---- | ------ | --- |
+| yuchaoran2011 | yuchaoran2011@gmail.com |  |

charts/spark-operator-chart/README.md.gotmpl

@@ -0,0 +1,27 @@
+{{ template "chart.header" . }}
+
+{{ template "chart.description" . }}
+
+## Introduction
+
+This chart bootstraps a [Kubernetes Operator for Apache Spark]({{template "chart.homepage" . }}) deployment using the [Helm](https://helm.sh) package manager.
+
+## Prerequisites
+
+- Helm >= 3
+- Kubernetes >= 1.13
+
+## Previous Helm Chart
+
+The previous `spark-operator` Helm chart hosted at [helm/charts](https://github.com/helm/charts) has been moved to this repository in accordance with the [Deprecation timeline](https://github.com/helm/charts#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.
+
+## Installing the chart
+
+TBD
+
+{{ template "chart.valuesSection" . }}
+
+{{ template "chart.maintainersSection" . }}