[stable/apm-server] Add support for Service and Deployment

stable/apm-server/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 description: The server receives data from the Elastic APM agents and stores the data into a datastore like Elasticsearch
 icon: https://www.elastic.co/assets/blt47799dcdcf08438d/logo-elastic-beats-lt.svg
 name: apm-server
-version: 0.1.0
+version: 0.2.0
 appVersion: 6.2.4
 home: https://www.elastic.co/solutions/apm
 sources:

stable/apm-server/README.md

@@ -43,6 +43,20 @@ The following table lists the configurable parameters of the apm-server chart an
 | `image.repository`                  | The image repository to pull from  | `docker.elastic.co/apm/apm-server`        |
 | `image.tag`                         | The image tag to pull              | `6.2.4`                                   |
 | `image.pullPolicy`                  | Image pull policy                  | `IfNotPresent`                            |
+| `kind`                              | Install as Deployment or DaemonSet | `Deployment`                              |
+| `replicaCount`                      | Number of replicas when kind is Deployment | `1`                               |
+| `updateStrategy`                    | Allows setting of RollingUpdate strategy | `{}`                                |
+| `service.enabled`                   | If true, create service pointing to APM Server | `true`                        |
+| `service.type`                      | type of service                          | `ClusterIP`                         |
+| `service.port`                      | Service port                             | `8200`                              |
+| `service.portName`                  | Service port name                        | None                                |
+| `service.clusterIP`                 | Static clusterIP or None for headless services | None                          |
+| `service.externalIPs`               | External IP addresses                    | None                                |
+| `service.loadBalancerIP`            | Load Balancer IP address                 | None                                |
+| `service.loadBalancerSourceRanges`  | Limit load balancer source IPs to list of CIDRs (where available)  | `[]`      |
+| `service.nodePort`                  | NodePort value if service.type is NodePort | None                              |
+| `service.annotations`               | Kubernetes service annotations           | None                                |
+| `service.labels`                    | Kubernetes service labels                | None                                |
 | `rbac.create`                       | If true, create & use RBAC resources | `true`                                  |
 | `rbac.serviceAccount`               | existing ServiceAccount to use (ignored if rbac.create=true) | `default`       |
 | `config`                            | The content of the configuration file consumed by apm-server. See the [apm-server documentation](https://www.elastic.co/guide/en/beats/apm-server/current/apm-server-reference-yml.html) for full details |
@@ -53,6 +67,9 @@ The following table lists the configurable parameters of the apm-server chart an
 | `resources.limits.cpu`              | CPU resource limits                |                                           |
 | `resources.requests.memory`         | Memory resource requests           |                                           |
 | `resources.limits.memory`           | Memory resource limits             |                                           |
+| `nodeSelector`                      | Node labels for pod assignment     | `{}`                                      |
+| `tolerations`                       | List of node taints to tolerate    | `[]`                                      |
+| `affinity`                          | Node/Pod affinities                | None                                      |
 
 Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
 

stable/apm-server/templates/daemonset.yaml

@@ -1,3 +1,4 @@
+{{- if eq .Values.kind "DaemonSet" }}
 apiVersion: apps/v1
 kind: DaemonSet
 metadata:
@@ -14,9 +15,7 @@ spec:
       release: {{ .Release.Name }}
   minReadySeconds: 10
   updateStrategy:
-    type: RollingUpdate
-    rollingUpdate:
-      maxUnavailable: 1
+{{ toYaml .Values.updateStrategy | indent 4 }}
   template:
     metadata:
       labels:
@@ -50,7 +49,8 @@ spec:
           value: {{ $value }}
 {{- end }}
         ports:
-          - containerPort: 8200
+          - name: http
+            containerPort: 8200
         securityContext:
           runAsUser: 0
         resources:
@@ -90,3 +90,4 @@ spec:
       affinity:
 {{ toYaml .Values.affinity | indent 8 }}
     {{- end }}
+{{- end }}

stable/apm-server/templates/deployment.yaml

@@ -0,0 +1,91 @@
+{{- if eq .Values.kind "Deployment" }}
+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  name: {{ template "apm-server.fullname" . }}
+  labels:
+    app: {{ template "apm-server.name" . }}
+    chart: {{ template "apm-server.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  minReadySeconds: 10
+  strategy:
+{{ toYaml .Values.updateStrategy | indent 4 }}
+  template:
+    metadata:
+      labels:
+        app: {{ template "apm-server.name" . }}
+        release: {{ .Release.Name }}
+        {{-  range $key, $value := .Values.podLabels }}
+        {{ $key }}: {{ $value }}
+        {{- end }}
+      annotations:
+        checksum/secret: {{ toYaml .Values.config | sha256sum }}
+        {{-  range $key, $value := .Values.podAnnotations }}
+        {{ $key }}: {{ $value }}
+        {{- end }}
+    spec:
+      containers:
+      - name: {{ .Chart.Name }}
+        image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+        imagePullPolicy: {{ .Values.image.pullPolicy }}
+        args:
+        - "-e"
+{{- if .Values.plugins }}
+        - "--plugin"
+        - {{ .Values.plugins | join "," | quote }}
+{{- end }}
+{{- if .Values.extraArgs }}
+{{ toYaml .Values.extraArgs | indent 8 }}
+{{- end }}
+        env:
+{{- range $key, $value := .Values.extraVars }}
+        - name: {{ $key }}
+          value: {{ $value }}
+{{- end }}
+        ports:
+          - name: http
+            containerPort: 8200
+            protocol: TCP
+        securityContext:
+          runAsUser: 0
+        resources:
+{{ toYaml .Values.resources | indent 10 }}
+        volumeMounts:
+        - name: apm-server-config
+          mountPath: /usr/share/apm-server/apm-server.yml
+          readOnly: true
+          subPath: apm-server.yml
+        - name: data
+          mountPath: /usr/share/apm-server/data
+{{- if .Values.extraVolumeMounts }}
+{{ toYaml .Values.extraVolumeMounts | indent 8 }}
+{{- end }}
+      volumes:
+      - name: apm-server-config
+        secret:
+          secretName: {{ template "apm-server.fullname" . }}
+      - name: data
+        hostPath:
+          path: /var/lib/apm-server
+          type: DirectoryOrCreate
+{{- if .Values.extraVolumes }}
+{{ toYaml .Values.extraVolumes | indent 6 }}
+{{- end }}
+      terminationGracePeriodSeconds: 60
+      serviceAccountName: {{ template "apm-server.serviceAccountName" . }}
+{{- if .Values.nodeSelector }}
+      nodeSelector:
+{{ toYaml .Values.nodeSelector | indent 8 }}
+    {{- end }}
+    {{- if .Values.tolerations }}
+      tolerations:
+{{ toYaml .Values.tolerations | indent 8 }}
+    {{- end }}
+    {{- if .Values.affinity }}
+      affinity:
+{{ toYaml .Values.affinity | indent 8 }}
+    {{- end }}
+{{- end }}

stable/apm-server/templates/service.yaml

@@ -0,0 +1,51 @@
+{{- if .Values.service.enabled }}
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: {{ template "apm-server.name" . }}
+    chart: {{ template "apm-server.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+  {{- range $key, $value := .Values.service.labels }}
+    {{ $key }}: {{ $value | quote }}
+  {{- end }}
+  name: {{ template "apm-server.fullname" . }}
+  {{- with .Values.service.annotations }}
+  annotations:
+    {{- range $key, $value := . }}
+      {{ $key }}: {{ $value | quote }}
+    {{- end }}
+  {{- end }}
+spec:
+  {{- if .Values.service.loadBalancerSourceRanges }}
+  loadBalancerSourceRanges:
+    {{- range $cidr := .Values.service.loadBalancerSourceRanges }}
+    - {{ $cidr }}
+    {{- end }}
+  {{- end }}
+  type: {{ .Values.service.type }}
+  {{- if and (eq .Values.service.type "ClusterIP") .Values.service.clusterIP }}
+  clusterIP: {{ .Values.service.clusterIP }}
+  {{- end }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: http
+      protocol: TCP
+{{ if (and (eq .Values.service.type "NodePort") (not (empty .Values.service.nodePort))) }}
+      nodePort: {{ .Values.service.nodePort }}
+{{ end }}
+{{- if .Values.service.portName }}
+      name: {{ .Values.service.portName }}
+{{- end }}
+{{- if .Values.service.externalIPs }}
+  externalIPs:
+{{ toYaml .Values.service.externalIPs | indent 4 }}
+{{- end }}
+  selector:
+    app: {{ template "apm-server.name" . }}
+    release: {{ .Release.Name }}
+{{- if .Values.service.loadBalancerIP }}
+  loadBalancerIP: {{ .Values.service.loadBalancerIP }}
+{{- end }}
+{{- end }}

stable/apm-server/values.yaml

@@ -3,6 +3,43 @@ image:
   tag: 6.2.4
   pullPolicy: IfNotPresent
 
+# DaemonSet or Deployment
+kind: DaemonSet
+
+# Number of replicas when kind is Deployment
+replicaCount: 1
+
+# The update strategy to apply to the Deployment or DaemonSet
+updateStrategy: {}
+  # rollingUpdate:
+  #   maxUnavailable: 1
+  # type: RollingUpdate
+
+service:
+  enabled: false
+  type: ClusterIP
+  port: 8200
+  # portName: apm-server-svc
+  # clusterIP: None
+  ## External IP addresses of service
+  ## Default: nil
+  # externalIPs:
+  # - 192.168.0.1
+  #
+  ## LoadBalancer IP if service.type is LoadBalancer
+  ## Default: nil
+  # loadBalancerIP: 10.2.2.2
+  ## Limit load balancer source ips to list of CIDRs (where available)
+  # loadBalancerSourceRanges: []
+
+  annotations: {}
+    # Annotation example: setup ssl with aws cert when service.type is LoadBalancer
+    # service.beta.kubernetes.io/aws-load-balancer-ssl-cert: arn:aws:acm:us-east-1:EXAMPLE_CERT
+  labels: {}
+    ## Label example: show service URL in `kubectl cluster-info`
+    # kubernetes.io/cluster-service: "true"
+
+
 config:
   apm-server: {}
     ### Defines the host and port the server is listening on
@@ -54,11 +91,13 @@ config:
   # When a key contains a period, use this format for setting values on the command line:
   # --set config."output\.file".enabled=false
   output.file:
+    # enabled: false
     path: "/usr/share/apm-server/data"
     filename: apm-server
     rotate_every_kb: 10000
     number_of_files: 5
 
+  ## Set output.file.enabled to false to enable elasticsearch
   # output.elasticsearch:
   #  hosts: ["elasticsearch:9200"]
   #  protocol: "https"
@@ -110,6 +149,10 @@ resources: {}
 ## Ref: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/
 nodeSelector: {}
 
+# Tolerations for pod assignment
+# Ref: https://kubernetes.io/docs/concepts/configuration/taint-and-toleration/
+tolerations: []
+
 ## Affinity configuration for pod assignment
 ## Ref: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/
 affinity: {}