Exercise 14

Author: aleyipsoftwire

README.md

@@ -187,3 +187,20 @@ See https://learn.microsoft.com/en-us/azure/cosmos-db/database-encryption-at-res
 Minimum level of shown logs can be configured by the `LOG_LEVEL` env var.
 
 Populate the `LOGGLY_TOKEN` env var for logs to be sent to Loggly.
+
+## Running in k8s
+
+1. Install `kubectl` and `minikube`
+2. Build a prod image: `docker build --target production --tag todo-app:prod .`
+3. Load the image into minikube: `minikube image load todo-app:prod`
+4. Create the secret for env variables:
+   ```shell
+   kubectl create secret generic container-env \
+     --from-literal=FLASK_APP='todo_app/app' \
+     --from-literal=MONGODB_PRIMARY_CONNECTION_STRING='<DELIBERATELY MISSING>' \
+     --from-literal=LOGGLY_TOKEN='<DELIBERATELY MISSING>' \
+     --from-literal=LOG_LEVEL='DEBUG'
+   ```
+5. Apply the k8s YAML files: `kubectl apply -f deployment.yaml -f service.yaml`
+6. Expose the port: `kubectl port-forward service/module-14 7080:80`
+7. Open http://localhost:7080 to view the app

deployment.yaml

@@ -0,0 +1,23 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: module-14
+spec:
+  selector:
+    matchLabels:
+      app: module-14
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        app: module-14
+    spec:
+      containers:
+        - name: "todo-app"
+          image: "todo-app:prod"
+          ports:
+            - containerPort: 8000
+          imagePullPolicy: "Never"
+          envFrom:
+            - secretRef:
+                name: container-env

service.yaml

@@ -0,0 +1,12 @@
+kind: Service
+apiVersion: v1
+metadata:
+  name: module-14
+spec:
+  type: NodePort
+  selector:
+    app: module-14
+  ports:
+    - protocol: TCP
+      port: 80
+      targetPort: 8000