Add coulomb-social Helm chart and deploy targets

Chart mirrors vergabe-teilnahme Django probe/secret pattern. Non-secret
values pin KeyCape OIDC and user-engine URL; env Secret holds secrets.
Makefile: dry-run, deploy, ingress, status, logs.

charts/coulomb-social/templates/_helpers.tpl

@@ -0,0 +1,25 @@
+{{- define "coulomb.fullname" -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- printf "%s" $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{- define "coulomb.labels" -}}
+app.kubernetes.io/name: {{ include "coulomb.fullname" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+app.kubernetes.io/part-of: railiance-apps
+helm.sh/chart: {{ printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" }}
+{{- end -}}
+
+{{- define "coulomb.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "coulomb.fullname" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end -}}
+
+{{- define "coulomb.image" -}}
+{{- if not .Values.image.tag -}}
+{{- fail "image.tag is required — pin it in helm/coulomb-social-values.yaml" -}}
+{{- end -}}
+{{- printf "%s:%s" .Values.image.repository .Values.image.tag -}}
+{{- end -}}

charts/coulomb-social/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "coulomb.fullname" . }}
+  labels: {{- include "coulomb.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels: {{- include "coulomb.selectorLabels" . | nindent 6 }}
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxSurge: 1
+      maxUnavailable: 0
+  template:
+    metadata:
+      labels: {{- include "coulomb.selectorLabels" . | nindent 8 }}
+    spec:
+      securityContext: {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: app
+          image: {{ include "coulomb.image" . | quote }}
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          securityContext: {{- toYaml .Values.securityContext | nindent 12 }}
+          ports:
+            - name: http
+              containerPort: {{ .Values.service.targetPort }}
+              protocol: TCP
+          envFrom:
+            - secretRef:
+                name: {{ .Values.envSecretName | quote }}
+          env:
+            {{- range $k, $v := .Values.env }}
+            - name: {{ $k }}
+              value: {{ $v | quote }}
+            {{- end }}
+          {{- if .Values.probes.enabled }}
+          readinessProbe:
+            httpGet:
+              path: {{ .Values.probes.path }}
+              port: {{ .Values.probes.port }}
+              httpHeaders:
+                - name: Host
+                  value: {{ .Values.probes.hostHeader | quote }}
+            initialDelaySeconds: {{ .Values.probes.readiness.initialDelaySeconds }}
+            periodSeconds: {{ .Values.probes.readiness.periodSeconds }}
+            timeoutSeconds: {{ .Values.probes.readiness.timeoutSeconds }}
+            failureThreshold: {{ .Values.probes.readiness.failureThreshold }}
+          livenessProbe:
+            httpGet:
+              path: {{ .Values.probes.path }}
+              port: {{ .Values.probes.port }}
+              httpHeaders:
+                - name: Host
+                  value: {{ .Values.probes.hostHeader | quote }}
+            initialDelaySeconds: {{ .Values.probes.liveness.initialDelaySeconds }}
+            periodSeconds: {{ .Values.probes.liveness.periodSeconds }}
+            timeoutSeconds: {{ .Values.probes.liveness.timeoutSeconds }}
+            failureThreshold: {{ .Values.probes.liveness.failureThreshold }}
+          {{- end }}
+          resources: {{- toYaml .Values.resources | nindent 12 }}
+          {{- if .Values.persistence.media.enabled }}
+          volumeMounts:
+            - name: media
+              mountPath: /app/media
+          {{- end }}
+      {{- if .Values.persistence.media.enabled }}
+      volumes:
+        - name: media
+          persistentVolumeClaim:
+            claimName: {{ include "coulomb.fullname" . }}-media
+      {{- end }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector: {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity: {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations: {{- toYaml . | nindent 8 }}
+      {{- end }}

charts/coulomb-social/templates/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "coulomb.fullname" . }}
+  labels: {{- include "coulomb.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: {{ .Values.service.targetPort }}
+      protocol: TCP
+      name: http
+  selector: {{- include "coulomb.selectorLabels" . | nindent 4 }}
+{{- if .Values.persistence.media.enabled }}
+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: {{ include "coulomb.fullname" . }}-media
+  labels: {{- include "coulomb.labels" . | nindent 4 }}
+spec:
+  storageClassName: {{ .Values.persistence.media.storageClass }}
+  accessModes: [{{ .Values.persistence.media.accessMode }}]
+  resources:
+    requests:
+      storage: {{ .Values.persistence.media.size }}
+{{- end }}