diff --git a/Dockerfile b/Dockerfile
index 797bd59..c7df763 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,15 +10,9 @@ RUN npm run build
 FROM nginx:alpine
 COPY --from=builder /app/dist /usr/share/nginx/html
 COPY nginx.conf /etc/nginx/conf.d/default.conf
+COPY env.sh /docker-entrypoint.d/env.sh
+RUN chmod +x /docker-entrypoint.d/env.sh
+
 EXPOSE 80
 
-ENV VITE_API_BASE_URL=https://api.example.com
-ENV VITE_FIREBASE_API_KEY=firebase-api
-ENV VITE_FIREBASE_AUTH_DOMAIN=firebase-auth
-ENV VITE_FIREBASE_PROJECT_ID=firebase-project
-ENV VITE_FIREBASE_STORAGE_BUCKET=firebase-storage
-ENV VITE_FIREBASE_MESSAGING_SENDER_ID=firebase-messaging
-ENV VITE_FIREBASE_APP_ID=firebase-app
-ENV VITE_FIREBASE_MEASUREMENT_ID=firebase-measurement
-
 CMD ["nginx", "-g", "daemon off;"]
diff --git a/env.sh b/env.sh
new file mode 100644
index 0000000..de11626
--- /dev/null
+++ b/env.sh
@@ -0,0 +1,12 @@
+#!/bin/sh
+for i in $(env | grep MY_APP_)
+do
+    key=$(echo $i | cut -d '=' -f 1)
+    value=$(echo $i | cut -d '=' -f 2-)
+    echo $key=$value
+    # sed All files
+    # find /usr/share/nginx/html -type f -exec sed -i "s|${key}|${value}|g" '{}' +
+
+    # sed JS and CSS only
+    find /usr/share/nginx/html -type f \( -name '*.js' -o -name '*.css' \) -exec sed -i "s|${key}|${value}|g" '{}' +
+done
\ No newline at end of file
diff --git a/src/config/firebase.ts b/src/config/firebase.ts
index c5aab56..f33dd6e 100644
--- a/src/config/firebase.ts
+++ b/src/config/firebase.ts
@@ -4,13 +4,13 @@ import { getAuth } from 'firebase/auth';
 import { getAnalytics } from 'firebase/analytics';
 
 const firebaseConfig = {
-  apiKey: import.meta.env.VITE_FIREBASE_API_KEY || 'firebaseApiKey',
-  authDomain: import.meta.env.VITE_FIREBASE_AUTH_DOMAIN || 'firebaseAuthDomain',
-  projectId: import.meta.env.VITE_FIREBASE_PROJECT_ID || 'firebaseProjectId',
-  storageBucket: import.meta.env.VITE_FIREBASE_STORAGE_BUCKET || 'firebaseStorageBucket',
-  messagingSenderId: import.meta.env.VITE_FIREBASE_MESSAGING_SENDER_ID || 'firebaseMessagingSenderId',
-  appId: import.meta.env.VITE_FIREBASE_APP_ID || 'firebaseAppId',
-  measurementId: import.meta.env.VITE_FIREBASE_MEASUREMENT_ID || 'firebaseMeasurementId',
+  apiKey: import.meta.env.VITE_FIREBASE_API_KEY || 'VITE_FIREBASE_API_KEY',
+  authDomain: import.meta.env.VITE_FIREBASE_AUTH_DOMAIN || 'VITE_FIREBASE_AUTH_DOMAIN',
+  projectId: import.meta.env.VITE_FIREBASE_PROJECT_ID || 'VITE_FIREBASE_PROJECT_ID',
+  storageBucket: import.meta.env.VITE_FIREBASE_STORAGE_BUCKET || 'VITE_FIREBASE_STORAGE_BUCKET',
+  messagingSenderId: import.meta.env.VITE_FIREBASE_MESSAGING_SENDER_ID || 'VITE_FIREBASE_MESSAGING_SENDER_ID',
+  appId: import.meta.env.VITE_FIREBASE_APP_ID || 'VITE_FIREBASE_APP_ID',
+  measurementId: import.meta.env.VITE_FIREBASE_MEASUREMENT_ID || 'VITE_FIREBASE_MEASUREMENT_ID',
 };
 
 const app = initializeApp(firebaseConfig);