feat(infrastructure): automatic deploy

7project/charts/myapp-chart/Chart.yaml

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+apiVersion: v2
+name: myapp-chart
+version: 0.1.0
+description: Helm chart for my app with MariaDB Database CR
+appVersion: "1.0.0"
+type: application

7project/charts/myapp-chart/templates/NOTES.txt

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+Thank you for installing myapp-chart.
+
+This chart packages all Kubernetes manifests from the original deployment directory and parameterizes environment, database name (with optional PR suffix), image, and domain for external access.
+
+Namespaces per developer (important):
+- Install each developer's environment into their own namespace using Helm's -n/--namespace flag.
+- No hardcoded namespace is used in templates; resources are created in .Release.Namespace.
+- Example namespaces: dev-alice, dev-bob, pr-123, etc.
+
+Key values:
+- deployment -> used as Database CR name and DB username (MARIADB_DB and MARIADB_USER)
+- image.repository/tag or image.digest -> container image
+- domain -> public FQDN used by TunnelBinding (required to expose app)
+- app/worker names, replicas, ports
+
+Examples:
+- Dev install (Alice):
+  helm upgrade --install myapp ./7project/charts/myapp-chart \
+    -n dev-alice --create-namespace \
+    -f values-dev.yaml \
+    --set domain=alice.demo.example.com \
+    --set-string rabbitmq.password="$RABBITMQ_PASSWORD" \
+    --set-string database.password="$DB_PASSWORD"
+
+- Dev install (Bob):
+  helm upgrade --install myapp ./7project/charts/myapp-chart \
+    -n dev-bob --create-namespace \
+    -f values-dev.yaml \
+    --set domain=bob.demo.example.com
+
+- Prod install (different cleanupPolicy):
+  helm upgrade --install myapp ./7project/charts/myapp-chart \
+    -n prod --create-namespace \
+    -f values-prod.yaml \
+    --set domain=app.example.com
+
+- PR (preview) install with DB name containing PR number (also its own namespace):
+  PR=123
+  helm upgrade --install myapp-pr-$PR ./7project/charts/myapp-chart \
+    -n pr-$PR --create-namespace \
+    -f values-dev.yaml \
+    --set prNumber=$PR \
+    --set deployment=preview-$PR \
+    --set domain=pr-$PR.example.com
+
+- Use a custom deployment identifier to suffix DB name, DB username and Secret name:
+  helm upgrade --install myapp ./7project/charts/myapp-chart \
+    -n dev-alice --create-namespace \
+    -f values-dev.yaml \
+    --set deployment=alice \
+    --set domain=alice.demo.example.com
+
+Render locally (dry run):
+  helm template ./7project/charts/myapp-chart -f values-dev.yaml --set prNumber=456 --set deployment=test --set domain=demo.example.com --namespace dev-test | sed -n '/kind: Database/,$p' | head -n 30

7project/charts/myapp-chart/templates/app-deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ .Values.app.name }}
+spec:
+  replicas: {{ .Values.app.replicas }}
+  revisionHistoryLimit: 3
+  selector:
+    matchLabels:
+      app: {{ .Values.app.name }}
+  template:
+    metadata:
+      labels:
+        app: {{ .Values.app.name }}
+    spec:
+      containers:
+        - name: {{ .Values.app.name }}
+          image: "{{- if .Values.image.digest -}}{{ .Values.image.repository }}@{{ .Values.image.digest }}{{- else -}}{{ .Values.image.repository }}:{{ default "latest" .Values.image.tag }}{{- end -}}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          ports:
+            - containerPort: {{ .Values.app.port }}
+          env:
+            - name: MARIADB_HOST
+              value: {{ printf "%s.%s.svc.cluster.local" .Values.mariadb.mariaDbRef.name .Values.mariadb.mariaDbRef.namespace | quote }}
+            - name: MARIADB_PORT
+              value: '3306'
+            - name: MARIADB_DB
+              value: {{ required "Set .Values.deployment" .Values.deployment | quote }}
+            - name: MARIADB_USER
+              value: {{ required "Set .Values.deployment" .Values.deployment | quote }}
+            - name: MARIADB_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ required "Set .Values.database.secretName" .Values.database.secretName }}
+                  key: password
+          livenessProbe:
+            httpGet:
+              path: /
+              port: {{ .Values.app.port }}
+            initialDelaySeconds: 10
+            periodSeconds: 10
+            failureThreshold: 3
+          readinessProbe:
+            httpGet:
+              path: /
+              port: {{ .Values.app.port }}
+            initialDelaySeconds: 10
+            periodSeconds: 10
+            failureThreshold: 3

7project/charts/myapp-chart/templates/database-grant.yaml

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+apiVersion: k8s.mariadb.com/v1alpha1
+kind: Grant
+metadata:
+  name: grant
+spec:
+  mariaDbRef:
+    name: {{ .Values.mariadb.mariaDbRef.name }}
+    namespace: {{ .Values.mariadb.mariaDbRef.namespace }}
+  privileges:
+    - "ALL PRIVILEGES"
+  database: {{ required "Set .Values.deployment" .Values.deployment | quote }}
+  table: "*"
+  username: {{ required "Set .Values.deployment" .Values.deployment | quote }}
+  grantOption: true
+  host: "%"
+  cleanupPolicy: {{ .Values.mariadb.cleanupPolicy }}
+  requeueInterval: {{ .Values.mariadb.requeueInterval | quote }}
+  retryInterval: {{ .Values.mariadb.retryInterval | quote }}

7project/charts/myapp-chart/templates/database-secret.yaml

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+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ required "Set .Values.database.secretName" .Values.database.secretName }}
+type: kubernetes.io/basic-auth
+stringData:
+  password: {{ required "Set .Values.database.password" .Values.database.password | quote }}

7project/charts/myapp-chart/templates/database-user.yaml

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+apiVersion: k8s.mariadb.com/v1alpha1
+kind: User
+metadata:
+  name: {{ required "Set .Values.deployment" .Values.deployment }}
+spec:
+  mariaDbRef:
+    name: {{ .Values.mariadb.mariaDbRef.name }}
+    namespace: {{ .Values.mariadb.mariaDbRef.namespace }}
+  passwordSecretKeyRef:
+    name: {{ required "Set .Values.database.secretName" .Values.database.secretName }}
+    key: password
+  maxUserConnections: 20
+  host: "%"
+  cleanupPolicy: {{ .Values.mariadb.cleanupPolicy }}
+  requeueInterval: {{ .Values.mariadb.requeueInterval | quote }}
+  retryInterval: {{ .Values.mariadb.retryInterval | quote }}

7project/charts/myapp-chart/templates/database.yaml

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+apiVersion: k8s.mariadb.com/v1alpha1
+kind: Database
+metadata:
+  name: {{ required "Set .Values.deployment" .Values.deployment }}
+spec:
+  mariaDbRef:
+    name: {{ .Values.mariadb.mariaDbRef.name | required "Values mariadb.mariaDbRef.name is required" }}
+    namespace: {{ .Values.mariadb.mariaDbRef.namespace | default .Release.Namespace }}
+  characterSet: utf8mb4
+  collate: utf8_general_ci
+  cleanupPolicy: {{ .Values.mariadb.cleanupPolicy }}
+  requeueInterval: {{ .Values.mariadb.requeueInterval | quote }}
+  retryInterval: {{ .Values.mariadb.retryInterval | quote }}
+

7project/charts/myapp-chart/templates/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ .Values.app.name }}
+spec:
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: {{ .Values.app.port }}
+  selector:
+    app: {{ .Values.app.name }}

7project/charts/myapp-chart/templates/tunnel.yaml

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+apiVersion: networking.cfargotunnel.com/v1alpha1
+kind: TunnelBinding
+metadata:
+  name: guestbook-tunnel-binding
+  namespace: {{ .Release.Namespace }}
+subjects:
+  - name: app-server
+    spec:
+      target: {{ printf "http://%s.%s.svc.cluster.local" .Values.app.name .Release.Namespace | quote }}
+      fqdn: {{ required "Set .Values.domain via --set domain=example.com" .Values.domain | quote }}
+      noTlsVerify: true
+tunnelRef:
+  kind: ClusterTunnel
+  name: cluster-tunnel

7project/charts/myapp-chart/templates/worker-deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ .Values.worker.name }}
+spec:
+  replicas: {{ .Values.worker.replicas }}
+  revisionHistoryLimit: 3
+  selector:
+    matchLabels:
+      app: {{ .Values.worker.name }}
+  template:
+    metadata:
+      labels:
+        app: {{ .Values.worker.name }}
+    spec:
+      containers:
+        - name: {{ .Values.worker.name }}
+          image: "{{- if .Values.image.digest -}}{{ .Values.image.repository }}@{{ .Values.image.digest }}{{- else -}}{{ .Values.image.repository }}:{{ default "latest" .Values.image.tag }}{{- end -}}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          command:
+            - celery
+            - -A
+            - app.celery_app
+            - worker
+            - -Q
+            - $(MAIL_QUEUE)
+            - --loglevel
+            - INFO
+          env:
+            - name: RABBITMQ_USERNAME
+              value: {{ .Values.rabbitmq.username | quote }}
+            - name: RABBITMQ_PASSWORD
+              value: {{ required "Set .Values.rabbitmq.password" .Values.rabbitmq.password | quote }}
+            - name: RABBITMQ_HOST
+              value: {{ .Values.rabbitmq.host | quote }}
+            - name: RABBITMQ_PORT
+              value: {{ .Values.rabbitmq.port | quote }}

7project/charts/myapp-chart/values-dev.yaml

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+env: dev
+
+mariadb:
+  cleanupPolicy: Delete
+

7project/charts/myapp-chart/values-prod.yaml

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+env: prod
+
+app:
+  replicas: 3
+
+worker:
+  replicas: 3

7project/charts/myapp-chart/values.yaml

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+# Base values shared across environments
+env: dev
+
+# Optional PR number used to suffix DB name, set via --set prNumber=123 in CI
+prNumber: ""
+
+# Optional deployment identifier used to suffix resource names (db, user, secret)
+# Example: --set deployment=alice or --set deployment=feature123
+deployment: ""
+
+# Public domain to expose the app under (used by TunnelBinding fqdn)
+# Set at install time: --set domain=example.com
+domain: ""
+
+image:
+  repository: lukastrkan/cc-app-demo
+  # You can use a tag or digest. If digest is provided, it takes precedence.
+  digest: ""
+  pullPolicy: IfNotPresent
+
+app:
+  name: ""
+  replicas: 1
+  port: 8000
+
+worker:
+  name: app-demo-worker
+  replicas: 1
+
+service:
+  port: 80
+
+rabbitmq:
+  host: rabbitmq.rabbitmq.svc.cluster.local
+  port: "5672"
+  username: demo-app
+  password: ""
+
+mariadb:
+  name: app-demo-database
+  cleanupPolicy: Skip
+  requeueInterval: 10h
+  retryInterval: 30s
+  mariaDbRef:
+    name: mariadb-repl
+    namespace: mariadb-operator
+
+# Database access resources
+database:
+  userName: app-demo-user
+  secretName: app-demo-database-secret
+  password: ""