running_firebase_emulators.md

Running Firebase Emulators

These steps assume that you have a properly configured Firebase project with running emulators. Running the docker container in this way mounts your project directory into /home/node inside the docker container giving firebase tools access to your firebase project.

1. Start this docker image with the following command:

   docker run -p 9199:9199 -p 9099:9099 -p 9005:9005 -p 9000:9000 -p 8085:8085 -p 8080:8080 -p 5001:5001 -p 5000:5000 -p 4000:4000 -v /path/to/project:/home/node --name firebase-tools andreysenov/firebase-tools
   

2. From the shell prompt running in the docker container, run firebase init emulators to update the firebase.json file in the root of your project. When asked whether you want to enable the emulator UI, choose "yes".
3. Edit your firebase.json file to contain this snippet:

   "ui": {
     "enabled": true,
     "host": "0.0.0.0",  //<--IMPORTANT
     "port": 4000
   }
   

4. If you are using the hosting emulator, you will need to run firebase login.
   • Follow the instructions on CLI prompt to login. It will involve navigating to a website, authenticating to Google, and then redirecting to the firebase emulators.
   • Your login token is stored in the .config directory, so you won't have to repeat this step every time you start the container.
   • It is recommended that you add .config to your .gitignore file if you haven't already.
5. Start the emulator suite by running firebase emulators:start. You should be able to access the firebase emulator UI by pointing your browser to http://localhost:4000

Note: Use the following command to start the docker container AND the emulators together:

docker run -p 9199:9199 -p 9099:9099 -p 9005:9005 -p 9000:9000 -p 8085:8085 -p 8080:8080 -p 5001:5001 -p 5000:5000 -p 4000:4000 -v /path/to/project:/home/node --name firebase-tools andreysenov/firebase-tools firebase emulators:start