Running firebase functions inside a docker container for development purpose

Question

I would like to develop and test a google firebase cloud functions in a docker container. Here is my Dockerfile:

FROM node:6.11.5
WORKDIR /workspace

RUN npm install -g firebase-tools eslint babel-cli

ADD functions-source/package*.json functions-source/
RUN npm --prefix ./functions-source install

ADD ./package*.json ./
RUN npm install
ENV GOOGLE_APPLICATION_CREDENTIALS /workspace/keys/default-appengine-service-key.json
EXPOSE 9005 5000

I build the image above with this command

docker build --tag dewey-nguyen:latest .

Then start a docker container with this command:

docker run -p 9005:9005 -p 5000:5000 -o 0.0.0.0 -v `pwd`:/workspace -it dewey-nguyen:latest /bin/bash

When I got inside of the container, I log in to firebase with this command:

firebase login

and I was able to sign in to firebase in the browser (http://localhost:9005/...) from host machine.

When I run firebase serve --only functions --debug inside of my container, I see all functions are green:

✔  functions: auth: http://localhost:5000/dewey-nguyen/us-central1/auth
✔  functions: myInformedDelivery: http://localhost:5000/dewey-nguyen/us-central1/myInformedDelivery
✔  functions: authCallback: http://localhost:5000/dewey-nguyen/us-central1/authCallback
✔  functions: checkInformedDeliveryEmails: http://localhost:5000/dewey-nguyen/us-central1/checkInformedDeliveryEmails

But I am not able to access http://localhost:5000/dewey-nguyen/us-central1/auth from the host browser with ERR_EMPTY_RESPONSE error returned.

Does anyone have a clue?

Answer 1

I've just went the same problem here, fixed by using the following command firebase serve --only functions -o 0.0.0.0. Using this option you still can access by localhost on your host machine.

You can also map your .config folder, something like -v "${HOME}/.config":"/root/.config" to keep your logged account, because your firebase session is stored in there.