Producer App can be deployed as k8s Deployment (#175)

Suitable for "endless" producers like observers/notifiers.
bakdata · Mar 15, 2023 · fdcb37a · fdcb37a
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diff --git a/charts/producer-app/README.md b/charts/producer-app/README.md
@@ -18,6 +18,7 @@ Alternatively, a YAML file that specifies the values for the parameters can be p
 | `labels`                     | Map of custom labels to attach to the pod spec.                                                                                                                                                                                                                            | `{}`                                       |
 | `tolerations`                | Array containing taint references. When defined, pods can run on nodes, which would otherwise deny scheduling. Further information can be found in the [Kubernetes documentation](https://kubernetes.io/docs/concepts/configuration/taint-and-toleration/)                 | `{}`                                       |
 | `nodeAffinity`               | Map to configure [pod affinities](https://kubernetes.io/docs/concepts/scheduling-eviction/assign-pod-node/#node-affinity).                                                                                                                                                 | `{}`                                       |
+| `deployment`                 | Deploy the producer as a Kubernetes Deployment (thereby ignoring Job-related configurations)                                                                                                                                                                               | false                                      |
 | `restartPolicy`              | [Restart policy](https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/#restart-policy) to use for the job.                                                                                                                                                     | `OnFailure`                                |
 | `schedule`                   | Cron expression to denote a schedule this producer app should be run on. It will then be deployed as a [CronJob](https://kubernetes.io/docs/concepts/workloads/controllers/cron-jobs/) instead of a [Job](https://kubernetes.io/docs/concepts/workloads/controllers/job/). |                                            |
 | `suspend`                    | Whether to suspend the execution of the cron job.                                                                                                                                                                                                                          | `false`                                    |

diff --git a/charts/producer-app/templates/deployment.yaml b/charts/producer-app/templates/deployment.yaml
@@ -0,0 +1,32 @@
+{{- if .Values.deployment }}
+{{- $root := . -}}
+{{- if .Capabilities.APIVersions.Has "apps/v1" }}
+apiVersion: apps/v1
+{{- else }}
+apiVersion: apps/v1beta1
+{{- end }}
+kind: Deployment
+metadata:
+  name: {{ template "producer-app.fullname" . }}
+{{- if .Values.annotations }}
+  annotations:
+  {{- range $key, $value := .Values.annotations }}
+    {{ $key | quote }}: {{ $value | quote }}
+  {{- end }}
+{{- end }}
+  labels:
+    app: {{ template "producer-app.name" . }}
+    chart: {{ template "producer-app.chart" . }}
+    release: {{ .Release.Name }}
+    {{- range $key, $value := .Values.labels }}
+    {{ $key }}: {{ $value }}
+    {{- end }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      app: {{ template "producer-app.name" . }}
+      release: {{ .Release.Name }}
+  template:
+{{ include "producer-app.podTemplate" . | indent 4 }}
+{{- end }}
diff --git a/charts/producer-app/templates/job.yaml b/charts/producer-app/templates/job.yaml
@@ -1,3 +1,4 @@
+{{- if not .Values.deployment -}}
 {{- $root := . -}}
   {{- if .Values.schedule -}}
     {{- if .Capabilities.APIVersions.Has "batch/v1/CronJob" }}
@@ -42,3 +43,4 @@ spec:
 {{ include "producer-app.podTemplate" . | indent 4 }}
   backoffLimit: {{ .Values.backoffLimit }}
   {{- end -}}
+{{- end }}
diff --git a/charts/producer-app/templates/pod.yaml b/charts/producer-app/templates/pod.yaml
@@ -17,7 +17,9 @@ metadata:
     {{ $key }}: {{ $value }}
     {{- end }}
 spec:
+  {{- if not .Values.deployment }}
   restartPolicy: {{ .Values.restartPolicy }}
+  {{- end }}
   {{- if .Values.serviceAccountName }}
   serviceAccountName: {{ .Values.serviceAccountName }}
   {{- end }}

diff --git a/charts/producer-app/values.yaml b/charts/producer-app/values.yaml
@@ -6,6 +6,11 @@ imagePullPolicy: Always
 
 imagePullSecrets: []
 
+# if true, deploy as kubernetes deployment instead of CronJob/Job
+deployment: false
+# Optional, applied for deployment:
+# replicaCount: 1
+
 restartPolicy: OnFailure
 
 configurationEnvPrefix: "APP"