feat(chart): add support for startup, liveness and readiness probes (#187)

Co-authored-by: Vinicius Mayrink <vinicius.mayrink@hotmail.com>

Author: vmayrink1

chart/templates/deployment.yaml

@@ -50,6 +50,18 @@ spec:
         securityContext:
           {{- toYaml .Values.securityContext | nindent 10 }}
         imagePullPolicy: {{ .Values.image.pullPolicy }}
+        {{- with .Values.startupProbe }}
+          startupProbe:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          {{- with .Values.livenessProbe }}
+          livenessProbe:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          {{- with .Values.readinessProbe }}
+          readinessProbe:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
       {{- with .Values.imagePullSecrets }}
       imagePullSecrets:
         {{- toYaml . | nindent 8 }}

chart/values.yaml

@@ -49,6 +49,17 @@ securityContext:
   capabilities:
     drop:
       - ALL
+# Optional health probes for the controller container.
+# Note: this controller doesn't serve HTTP traffic by default, so exec probes are usually the best option.
+# Example:
+# livenessProbe:
+#   exec:
+#     command: ["/bin/sh", "-c", "ps aux | grep -v grep | grep -q kube-downscaler"]
+#   initialDelaySeconds: 30
+#   periodSeconds: 10
+startupProbe: {}
+livenessProbe: {}
+readinessProbe: {}
 
 resources:
   limits: