Running in Docker

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I also have a Docker usecase. For my needs I’m wanting to package web & api in separate containers. It was easy enough to get the compiled web app running in a container served by nginx, however the api took some hackery.

api dockerfile:

FROM node:lts-alpine

ENV PORT 8911

RUN apk --no-cache add git

COPY . /app/api
COPY docker/ /app/

WORKDIR /app

RUN yarn install
RUN cd api && yarn install && yarn add @redwoodjs/core
RUN yarn rw build api

EXPOSE $PORT

CMD yarn rw dev api

So what I’m doing here is copying everything from /api into /app/api, and then I created a /docker dir which contains the following files that are copied into /app:

  • .babelrc.js
  • .env.defaults
  • babel.config.js
  • package.json
  • redwood.toml

I did this for two reasons, one is that my Dockerfile for api lives in the /api dir which means you can’t reference files outside of that directory. The second reason is that I wanted to modify some of the files without touching the originals. So it’s a little messy.

docker/package.json:

{
  "name": "app",
  "version": "0.0.0",
  "private": true,
  "dependencies": {
    "@redwoodjs/api": "^0.12.0",
    "@redwoodjs/core": "^0.12.0",
    "netlify-plugin-prisma-provider": "^0.3.0"
  }
}

docker/.babelrc.js

module.exports = { extends: 'babel.config.js' }

I also had to add @redwoodjs/core to /api/package.json otherwise the commands aren’t found.

My docker-compose file:

version: '3.6'

services:
  api:
    image: app-api
    build:
      context: ./api
      dockerfile: Dockerfile
    ports:
      - 8911:8911
  web:
    image: app-web
    build:
      context: ./web
      dockerfile: Dockerfile
    ports:
      - 8910:8910

Another issue is that requests from the web container are currently routed to itself, e.g. http://localhost:8910/.netlify/functions/graphql

It looks like this could be fixed by changing apiProxyPath in redwood.toml, but for now I’m just proxying the request in my nginx config.

Otherwise this seems to work pretty well. :slight_smile: