AWS Elastic Beanstalk Docker Does not support Multi-Stage Build

Question

I am struggling to get my build deploying to AWS on Docker. I have no idea where the solution lays as this is my first time with Docker. I have got it all working fine local

Answer 1

I had the same problem. Actually I check the following rows in my log file:

2020/05/26 17:26:30.327310 [INFO] Running command /bin/sh -c docker pull node:alpine as builder
2020/05/26 17:26:30.369280 [ERROR] "docker pull" requires exactly 1 argument.

As you can seen, it tries to make a 'docker pull' with 3 arguments:

1. node:alpine
2. as
3. builder

and of course, that is not possible because it requires only 1 argument. Thus, apparently AWS Elastic Beanstalk doesn't support stage naming. For this reason I solved using an Unnamed builder:

FROM node:13-alpine

and in the end:

COPY --from=0 /opt/ng/dist/angular-universal-app/browser /usr/share/nginx/html

Final Dockerfile:

FROM node:13-alpine

WORKDIR /opt/ng
COPY package.json package-lock.json ./
RUN npm install

ENV PATH="./node_modules/.bin:$PATH"

COPY . ./
RUN ng build --prod

FROM nginx:1.18-alpine
COPY nginx.conf /etc/nginx/conf.d/default.conf
COPY --from=0 /opt/ng/dist/angular-universal-app/browser /usr/share/nginx/html

For me it works using that solution. If someone has any problem, please share the last-100-lines log

Answer 2

I have seen this error when using a solution stack that uses 'Amazon Linux 2'. These platforms are new and have some ongoing issues.

Amazon Linux 2 support for AWS Elastic Beanstalk is in beta release and is subject to change.

• https://docs.aws.amazon.com/elasticbeanstalk/latest/platforms/platforms-beta.html

Please use a solution stack that has 'Amazon Linux' in the name. You should not face the issue there.