There seems to be some issue with how ebcli emits the docker run command.
Following is the command I am running on a MacOS machine
eb local run --port 3001
While eb is able to successfully build the docker image, it throws the error below when it tries to run the same.
docker: invalid publish opts format (should be name=value but got '3001:${PORT}').
Following is how my Dockerfile looks like
# Check out https://hub.docker.com/_/node to select a new base image
FROM node:10-slim
# Set to a non-root built-in user `node`
USER node
# Create app directory (with user `node`)
RUN mkdir -p /home/node/app
WORKDIR /home/node/app
# Install app dependencies
# A wildcard is used to ensure both package.json AND package-lock.json are copied
# where available (npm@5+)
COPY --chown=node package*.json ./
RUN npm install
# Bundle app source code
COPY --chown=node . .
RUN npm run build
# Bind to all network interfaces so that it can be mapped to the host OS
ENV HOST=0.0.0.0 PORT=3000
EXPOSE ${PORT}
CMD [ "node", "." ]
This is a limitation of ebcli. The reason this is happening is that ebcli parses your dockerfile to retrieve the exposed port. Because ebcli reads your EXPOSE instruction as a literal string, when you are referencing an environment variable in your EXPOSE instruction ebcli attempts to pass that string to the port option as -p 3001:${PORT}.
To resolve this you will need to modify your EXPOSE instruction to explicitly expose the value 3000.
example:
EXPOSE 3000
There are enhancements that can be made to improve this experience. Feel free to report this on the ebcli github repository.