Multinode simple python app

simple-proj/Makefile

@@ -0,0 +1,15 @@
+
+image: Dockerfile
+	docker build -t shoppinglist-frontend:latest .
+
+load:
+	kind load docker-image shoppinglist-frontend:latest
+
+apply:
+	kubectl apply -f k8s/
+
+restart:
+	kubectl delete pod -l app=shoppinglist-frontend
+
+watch:
+	kubectl get pods -l app=shoppinglist-frontend -w

simple-proj/app.py

@@ -2,9 +2,17 @@
 from flask import Flask, request, jsonify
 import redis
 
+import random
+
+my_random_id = random.randrange(100)
+
 r = redis.Redis(host='redis', port=6379)
 app = Flask(__name__)
 
+@app.route("/id", methods=["GET"])
+def id():
+    return f"{my_random_id}\n"
+
 @app.route("/items", methods=["GET", "POST"])
 def items():
     if request.method == "POST":

simple-proj/k8s/frontend-deployment.yaml

@@ -3,7 +3,7 @@ kind: Deployment
 metadata:
   name: shoppinglist-frontend
 spec:
-  replicas: 1
+  replicas: 3
   selector:
     matchLabels:
       app: shoppinglist-frontend
@@ -15,6 +15,7 @@ spec:
       containers:
         - name: frontend
           image: shoppinglist-frontend:latest
+          imagePullPolicy: Never
           ports:
             - containerPort: 5000
           env: