Configure CORS Allowed Origins via ConfigMaps

Author: TineoC

deploy/manifests/balancer/base/deployment.yaml

@@ -21,6 +21,8 @@ spec:
           envFrom:
             - secretRef:
                 name: balancer-config
+            - configMapRef:
+                name: balancer-config
           ports:
             - containerPort: 8000
           readinessProbe:

deploy/manifests/balancer/base/kustomization.yaml

@@ -6,3 +6,6 @@ resources:
   - deployment.yaml
   - service.yaml
   - ingress.yaml
+
+configMapGenerator:
+  - name: balancer-config

deploy/manifests/balancer/overlays/production/configmap.yaml

@@ -0,0 +1,6 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: balancer-config
+data:
+  CORS_ALLOWED_ORIGINS: "https://balancerproject.org"

deploy/manifests/balancer/overlays/production/kustomization.yaml

@@ -0,0 +1,8 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - ../../base
+
+patches:
+  - path: configmap.yaml

deploy/manifests/balancer/overlays/sandbox/configmap.yaml

@@ -0,0 +1,6 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: balancer-config
+data:
+  CORS_ALLOWED_ORIGINS: "https://sandbox.balancertestsite.com"

deploy/manifests/balancer/overlays/sandbox/kustomization.yaml

@@ -0,0 +1,8 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - ../../base
+
+patches:
+  - path: configmap.yaml

server/balancer_backend/settings.py

@@ -67,7 +67,10 @@
 
 ROOT_URLCONF = "balancer_backend.urls"
 
-CORS_ALLOW_ALL_ORIGINS = True
+# CORS configuration
+CORS_ALLOWED_ORIGINS = os.environ.get("CORS_ALLOWED_ORIGINS", "http://localhost:3000").split(",")
+# Ensure no empty strings if input was empty or trailing comma
+CORS_ALLOWED_ORIGINS = [origin.strip() for origin in CORS_ALLOWED_ORIGINS if origin.strip()]
 
 TEMPLATES = [
     {