actions: fix the dockerhub build

Author: multun

docker/docker-bake.hcl

@@ -58,7 +58,7 @@ target "gateway-embedded-front" {
   dockerfile = "gateway-embedded-front.dockerfile"
   context = "docker"
   contexts = {
-    built_front = "target:front-nginx"
+    front = "./front"
     gateway = "./gateway"
   }
 }

docker/gateway-embedded-front.dockerfile

@@ -1,5 +1,19 @@
 # syntax=docker/dockerfile:1
 
+### FRONT BUILD STAGE
+
+FROM node:18-alpine as front_build
+
+WORKDIR /app
+
+# Build dependencies
+COPY --from=front package.json yarn.lock /app/
+RUN yarn install
+
+# Generate the licenses file and build
+COPY --from=front . /app
+RUN yarn generate-licenses && yarn build
+
 ### GATEWAY BUILD STAGE
 
 FROM lukemathwalker/cargo-chef:latest AS chef
@@ -42,7 +56,7 @@ ENV OSRD_GIT_DESCRIBE=${OSRD_GIT_DESCRIBE}
 
 # Copy the front
 WORKDIR /srv
-COPY --from=built_front /srv /srv/front/
+COPY --from=front_build /app/build /srv/front/
 
 # Copy an example config file
 COPY --from=gateway ./gateway.prod.sample.toml /gateway.sample.toml