Add pdb resource (#51)

Author: jrcamp

helm-charts/splunk-otel-collector/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v2
 name: splunk-otel-collector
-version: 0.20.1
+version: 0.20.2
 description: Splunk OpenTelemetry Connector for Kubernetes
 type: application
 keywords:

helm-charts/splunk-otel-collector/templates/pdb-collector.yaml

@@ -0,0 +1,19 @@
+{{- if and .Values.otelCollector.enabled .Values.podDisruptionBudget }}
+apiVersion: policy/v1beta1
+kind: PodDisruptionBudget
+metadata:
+  name: {{ template "splunk-otel-collector.fullname" . }}
+  labels:
+    app: {{ template "splunk-otel-collector.name" . }}
+    component: otel-collector
+    chart: {{ template "splunk-otel-collector.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+spec:
+  selector:
+    matchLabels:
+      app: {{ template "splunk-otel-collector.name" . }}
+      component: otel-collector
+      release: {{ .Release.Name }}
+{{ toYaml .Values.podDisruptionBudget | trim | indent 2 }}
+{{- end }}

helm-charts/splunk-otel-collector/templates/pdb-k8s-cluster-receiver.yaml

@@ -0,0 +1,19 @@
+{{- if and (and .Values.otelK8sClusterReceiver.enabled .Values.metricsEnabled) .Values.podDisruptionBudget }}
+apiVersion: policy/v1beta1
+kind: PodDisruptionBudget
+metadata:
+  name: {{ template "splunk-otel-collector.fullname" . }}-otel-k8s-cluster-receiver
+  labels:
+    app: {{ template "splunk-otel-collector.name" . }}
+    component: otel-k8s-cluster-receiver
+    chart: {{ template "splunk-otel-collector.chart" . }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+spec:
+  selector:
+    matchLabels:
+      app: {{ template "splunk-otel-collector.name" . }}
+      component: otel-k8s-cluster-receiver
+      release: {{ .Release.Name }}
+{{ toYaml .Values.podDisruptionBudget | trim | indent 2 }}
+{{- end }}

helm-charts/splunk-otel-collector/values.yaml

@@ -87,7 +87,7 @@ otelAgent:
   # The ports to be exposed by the agent to the host.
   # Make sure that only necessary ports are exposed, <hostIP, hostPort, protocol> combination must
   # be unique across all the nodes in k8s cluster. Any port can be disabled,
-  # For exapmle to disable zipkin ports set `otelAgent.ports.zipkin: null`.
+  # For example to disable zipkin ports set `otelAgent.ports.zipkin: null`.
   ports:
     otlp:
       containerPort: 55680
@@ -536,6 +536,14 @@ image:
 # Extra system configuration
 ################################################################################
 
+## Limits how many pods may be unavailable due to voluntary disruptions.
+## https://kubernetes.io/docs/tasks/run-application/configure-pdb/
+podDisruptionBudget: {}
+  # Minimum number of pods (as a number or percentage) that must remain available.
+  # minAvailable:
+  # Maximum number of pods (as a number or percentage) that can be unavailable.
+  # maxUnavailable:
+
 serviceAccount:
   # Specifies whether a ServiceAccount should be created
   create: true