Build Docker images with stack instead of cabal

docker.sh

@@ -7,10 +7,10 @@ TAG=$(git rev-parse --short HEAD)
 (
 rm -rf docker/app
 mkdir -p docker/app
-yesod keter
-cd docker/app
-tar xf ../../stackage-server.keter
-cd ..
+stack build
+cp $(stack exec which stackage-server) docker/app
+cp -r static config docker/app
+cd docker
 docker build -t snoyberg/stackage-server:$TAG .
 docker push snoyberg/stackage-server:$TAG
 )

docker/Dockerfile

@@ -6,5 +6,5 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get install -y libpq5 libgmp10 git
 ADD app /app
 WORKDIR /app
 
-ENTRYPOINT ./dist/build/stackage-server/stackage-server Production
+ENTRYPOINT ./stackage-server Production
 EXPOSE 3000