chore(deploy): add resource limits and pod disruption budget

this is useful for HPA

Signed-off-by: SphericalKat <amolele@gmail.com>

deployment/deployment.yml

@@ -43,4 +43,9 @@ spec:
           ports:
             - containerPort: 5000
               name: katbin-service
+          resources:
+            limits:
+              cpu: 500m
+            requests:
+              cpu: 200m
           imagePullPolicy: Always

deployment/pod-disruption-budget.yml

@@ -0,0 +1,9 @@
+apiVersion: policy/v1
+kind: PodDisruptionBudget
+metadata:
+  name: katbin-service-podbudget
+spec:
+  maxUnavailable: 0
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: katbin-service