diff --git a/deployment.yaml b/deployment.yaml
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+++ b/deployment.yaml
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+# 1. api Deployment — Flask backend
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: api
+  namespace: taskapp
+  labels:
+    app: api
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: api
+  template:
+    metadata:
+      labels:
+        app: api
+    spec:
+      containers:
+        - name: api
+          image: taskapp-api:v1
+          imagePullPolicy: IfNotPresent
+          ports:
+            - containerPort: 5000
+              name: http
+          env:
+            - name: DB_HOST
+              value: "db"
+            - name: DB_PORT
+              value: "5432"
+            - name: DB_NAME
+              valueFrom:
+                secretKeyRef:
+                  name: db-credentials
+                  key: POSTGRES_DB
+            - name: DB_USER
+              valueFrom:
+                secretKeyRef:
+                  name: db-credentials
+                  key: POSTGRES_USER
+            - name: DB_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: db-credentials
+                  key: POSTGRES_PASSWORD
+          resources:
+            requests:
+              cpu: 50m
+              memory: 64Mi
+            limits:
+              cpu: 250m
+              memory: 256Mi
+          readinessProbe:
+            httpGet:
+              path: /api/health
+              port: 5000
+            initialDelaySeconds: 5
+            periodSeconds: 5
+            timeoutSeconds: 3
+            failureThreshold: 6
+          livenessProbe:
+            httpGet:
+              path: /api/health
+              port: 5000
+            initialDelaySeconds: 30
+            periodSeconds: 15
+            timeoutSeconds: 3
+            failureThreshold: 3
+
+---
+# 2. web Deployment — Nginx frontend
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: web
+  namespace: taskapp
+  labels:
+    app: web
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: web
+  template:
+    metadata:
+      labels:
+        app: web
+    spec:
+      containers:
+        - name: web
+          image: taskapp-web:v1
+          imagePullPolicy: IfNotPresent
+          ports:
+            - containerPort: 80
+              name: http
+          volumeMounts:
+            - name: nginx-config
+              mountPath: /etc/nginx/nginx.conf
+              subPath: nginx.conf
+              readOnly: true
+          resources:
+            requests:
+              cpu: 25m
+              memory: 32Mi
+            limits:
+              cpu: 100m
+              memory: 128Mi
+          readinessProbe:
+            httpGet:
+              path: /
+              port: 80
+            initialDelaySeconds: 1
+            periodSeconds: 5
+          livenessProbe:
+            httpGet:
+              path: /
+              port: 80
+            initialDelaySeconds: 5
+            periodSeconds: 15
+      volumes:
+        - name: nginx-config
+          configMap:
+            name: nginx-config
+            items:
+              - key: nginx.conf
+                path: nginx.conf