Dockerfile

# START ANGULAR_BUILD
FROM node:14-alpine AS ANGULAR_BUILD
WORKDIR /myapp-frontend-angular
COPY ./myapp-frontend-angular/package.json .
COPY ./myapp-frontend-angular/package-lock.json .
RUN npm install
COPY ./myapp-frontend-angular .

# copy schema and query to run script before build: "npm run codegen"
COPY ./myapp-backend-go/graph/schema ../myapp-backend-go/graph/schema/
COPY ./myapp-backend-go/graph/query ../myapp-backend-go/graph/query/

RUN npm run build
# END ANGULAR_BUILD

################################################################################

# START GO_BUILD
FROM golang:1.16-alpine AS GO_BUILD
WORKDIR /myapp-backend-go
RUN apk add build-base
COPY ./myapp-backend-go .

RUN make before-build
RUN go build ./server.go
# END GO_BUILD

################################################################################

# FINAL BUILD DOCKER IMAGE
FROM alpine:3
WORKDIR /app
COPY --from=ANGULAR_BUILD /myapp-frontend-angular/dist/myapp-frontend-angular/ ./myapp-frontend-angular/dist/myapp-frontend-angular/
COPY --from=GO_BUILD ./myapp-backend-go/server ./
ENV IS_INCLUDE_MYAPP_FRONTEND_ANGULAR=true
ENV ENVIRONMENT=default
ENV PORT=9999
COPY /myapp-backend-go/internal/config/config.yaml /app/internal/config/
CMD ./server -e ${ENVIRONMENT}