created docker file

frontend/Dockerfile

@@ -1,4 +1,23 @@
-FROM ubuntu:latest
-LABEL authors="kacper"
+# Use an official Node.js runtime as the base image
+FROM node:16 as build
+
+WORKDIR /app
+
+COPY package*.json ./
+
+RUN npm install -g @angular/cli
+
+RUN npm install
+
+COPY . .
+
+RUN ng build
+
+FROM nginx:alpine
+
+COPY --from=build /app/dist/frontend /usr/share/nginx/html
+
+EXPOSE 80
+
+CMD ["nginx", "-g", "daemon off;"]
 
-ENTRYPOINT ["top", "-b"]