part 12 done

Pt12/part12-containers-applications/todo-app/todo-frontend/Dockerfile

@@ -0,0 +1,22 @@
+# The first FROM is now a stage called build-stage
+
+FROM node:20 AS build-stage 
+
+ENV VITE_BACKEND_URL=http://server:3000
+
+WORKDIR /usr/src/app
+
+COPY . .
+
+RUN npm ci
+
+RUN npm run build
+
+# This is a new stage, everything before this is gone, except for the files that we want to COPY
+
+FROM nginx:1.25-alpine
+
+# COPY the directory dist from the build-stage to /usr/share/nginx/html
+# The target location here was found from the Docker hub page
+
+COPY --from=build-stage /usr/src/app/dist /usr/share/nginx/html