added django channels service and deployment

Author: briancaffey

backend/backend/settings/minikube.py

@@ -12,3 +12,26 @@
         'PORT': os.environ.get('POSTGRES_SERVICE_PORT', 5432), # noqa
     }
 }
+
+# Django Channels
+
+CHANNEL_LAYERS = {
+    'default': {
+        'BACKEND': 'channels_redis.core.RedisChannelLayer',
+        'CONFIG': {
+            "hosts": [
+                (
+                    os.environ.get("REDIS_SERVICE_HOST"), # noqa
+                    6379
+                )
+            ],
+        },
+    },
+}
+
+# Celery Configuration
+
+CELERY_BROKER_URL = \
+    f"redis://{os.environ.get('REDIS_SERVICE_HOST')}/6379" # noqa
+CELERY_RESULT_BACKEND = \
+    f"redis://{os.environ.get('REDIS_SERVICE_HOST')}/6379" # noqa

compose/minikube.yml

@@ -15,7 +15,7 @@ services:
         - HTTP_PROTOCOL=http
 
   backend:
-    image: backend:10
+    image: backend:11
     build:
       context: ../backend/
       dockerfile: scripts/dev/Dockerfile

kubernetes/channels/deployment.yml

@@ -0,0 +1,63 @@
+apiVersion: apps/v1beta2
+kind: Deployment
+metadata:
+  name: django-channels
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: django-channels-container
+  template:
+    metadata:
+      labels:
+        app: django-channels-container
+    spec:
+      containers:
+        - name: backend
+          imagePullPolicy: IfNotPresent
+          image: backend:11
+          command: ["daphne", "backend.asgi:application", "--bind", "0.0.0.0", "--port", "9000"]
+          # livenessProbe:
+          #   httpGet:
+          #     path: /healthz
+          #     port: 9000
+          # readinessProbe:
+          #   # an http probe
+          #   httpGet:
+          #     path: /readiness
+          #     port: 9000
+          #   initialDelaySeconds: 20
+          #   timeoutSeconds: 5
+          ports:
+          - containerPort: 9000
+          env:
+            - name: DJANGO_SETTINGS_MODULE
+              value: 'backend.settings.minikube'
+
+            - name: SECRET_KEY
+              value: "my-secret-key"
+
+            - name: POSTGRES_NAME
+              value: postgres
+
+            - name: POSTGRES_USER
+              valueFrom:
+                secretKeyRef:
+                  name: postgres-credentials
+                  key: user
+
+            - name: POSTGRES_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: postgres-credentials
+                  key: password
+
+      #     volumeMounts:
+      #       - name: postgres-volume-mount
+      #         mountPath: /var/lib/busybox
+
+      # volumes:
+      #   - name: postgres-volume-mount
+      #     persistentVolumeClaim:
+      #       claimName: postgres-pvc
+

kubernetes/channels/service.yml

@@ -0,0 +1,12 @@
+kind: Service
+apiVersion: v1
+metadata:
+  name: kubernetes-django-channels-service
+spec:
+  selector:
+    app: django-channels-container
+  ports:
+  - protocol: TCP
+    port: 9000
+    targetPort: 9000
+  type: NodePort

kubernetes/django/deployment.yml

@@ -15,7 +15,7 @@ spec:
       containers:
         - name: backend
           imagePullPolicy: IfNotPresent
-          image: backend:10
+          image: backend:11
           command: ["./manage.py", "runserver", "0.0.0.0:8000"]
           livenessProbe:
             httpGet:

kubernetes/ingress.yml

@@ -19,6 +19,10 @@ spec:
         backend:
           serviceName: kubernetes-django-service
           servicePort: 8000
+      - path: /ws/
+        backend:
+          serviceName: kubernetes-django-channels-service
+          servicePort: 9000
       - path: /
         backend:
           serviceName: kubernetes-frontend-service