Add ingress, pod annotations and resources to spark-history-server (#11945)

Signed-off-by: Stijn De Haes <stijndehaes@gmail.com>

stable/spark-history-server/Chart.yaml

@@ -1,5 +1,5 @@
 name: spark-history-server
-version: 0.3.0
+version: 0.4.0
 appVersion: 2.4.0
 description: A Helm chart for Spark History Server
 home: https://spark.apache.org

stable/spark-history-server/README.md

@@ -112,6 +112,12 @@ Note that the default image `lightbend/spark-history-server` is built using this
 | s3.accessKeyName | The file name that contains the AWS access key ID. Omit if using IAM based authentication | aws-access-key |
 | s3.secretKeyName | The file name that contains the AWS secret access key. Omit if using IAM based authentication | aws-secret-key |
 | s3.logDirectory | The S3 log directory that starts with "s3a://" | s3a://spark-hs/ |
+| ingress.enabled | if `true`, an ingress is created | false |
+| ingress.annotations | annotations for the ingress | {} |
+| ingress.path | if `true`, an ingress is created | / |
+| ingress.hosts | a list of ingress hosts | [spark-history-server.example.com] |
+| ingress.tls | a list of [IngressTLS](https://v1-9.docs.kubernetes.io/docs/reference/generated/kubernetes-api/v1.9/#ingresstls-v1beta1-extensions) items | [] |
+| resources | Resource requests and limits | {} |
 
 Note that only when `pvc.enablePVC` is set to `true`, the following settings take effect:
 

stable/spark-history-server/templates/deployment.yaml

@@ -18,6 +18,10 @@ spec:
       labels:
         app.kubernetes.io/name: {{ include "spark-history-server.name" . }}
         app.kubernetes.io/instance: {{ .Release.Name }}
+{{- if .Values.podAnnotations }}
+      annotations:
+{{ toYaml .Values.podAnnotations | indent 8 }}
+{{- end }}
     spec:
       serviceAccountName: {{ include "spark-history-server.serviceAccountName" . }}
       containers:
@@ -33,6 +37,8 @@ spec:
         - name: historyport
           containerPort: {{ .Values.service.port }}
           protocol: TCP
+        resources:
+{{ toYaml .Values.resources | indent 10 }}
         command:
         - "/bin/sh"
         - "-c"

stable/spark-history-server/templates/ingress.yaml

@@ -0,0 +1,31 @@
+{{- if .Values.ingress.enabled -}}
+{{- $fullname := include "spark-history-server.fullname" . -}}
+apiVersion: extensions/v1beta1
+kind: Ingress
+metadata:
+  name: {{ $fullname }}
+  labels:
+    app.kubernetes.io/name: {{ include "spark-history-server.name" . }}
+    helm.sh/chart: {{ include "spark-history-server.chart" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+    annotations:
+{{- range $key, $value := .Values.ingress.annotations }}
+      {{ $key }}: {{ $value | quote }}
+{{- end }}
+spec:
+  rules:
+    {{- range $host := .Values.ingress.hosts }}
+    - host: {{ $host }}
+      http:
+        paths:
+        - path: /
+          backend:
+            serviceName: {{ $fullname }}
+            servicePort: historyport
+    {{- end -}}
+  {{- if .Values.ingress.tls }}
+  tls:
+  {{ toYaml .Values.ingress.tls | indent 4 }}
+{{- end -}}
+{{- end -}}

stable/spark-history-server/values.yaml

@@ -1,4 +1,6 @@
 replicaCount: 1
+nameOverride: ""
+fullnameOverride: ""
 
 rbac:
   create: true
@@ -25,6 +27,36 @@ environment:
   # SPARK_DAEMON_CLASSPATH: ...
   # SPARK_PUBLIC_DNS: ...
 
+podAnnotations: {}
+
+resources: {}
+  # We usually recommend not to specify default resources and to leave this as a conscious
+  # choice for the user. This also increases chances charts run on environments with little
+  # resources, such as Minikube. If you do want to specify resources, uncomment the following
+  # lines, adjust them as necessary, and remove the curly braces after 'resources:'.
+  #
+  # To let the application start up quickly give it a big limit
+  # limits:
+  #  cpu: 1000m
+  #  memory: 1Gi
+  # requests:
+  #  cpu: 100m
+  #  memory: 512Mi
+
+
+ingress:
+  enabled: false
+  annotations: {}
+  # kubernetes.io/ingress.class: nginx
+  # kubernetes.io/tls-acme: "true"
+  path: /
+  hosts:
+    - spark-history-server.example.com
+  tls: []
+  #  - secretName:spark-history-server.example.com
+  #    hosts:
+  #      - spark-history-server.example.com
+
 pvc:
   # to use a file system path for Spark events dir, set 'enablePVC' to true and mention the
   # name of an already created persistent volume claim in existingClaimName.