Update: Alpine made a couple changes that affect this post, and a helpful comment below will clear up the issue(s) caused from that. Thanks Jonathan! I've also fixed the example code.
Update #2: It seems that Hot Module Reloading is currently borked with this in Windows. I'll post an update if/when that is fixed!
I'm probably late to the party on this one, but I recently started using Docker as a part of my development workflow. I absolutely love it, and I feel that all developers should at least tinker with a basic tutorial somewhere. Trust me, it's a rabbit hole worth exploring!
While going through a some of my recent Gatsby and NextJS projects this week to "Dockerize" them, I noticed that there didn't seem to be much information readily available for making that happen.
Gatsby does offer a Docker setup within their repo (based on alpine:edge), but to be blunt: it seemed needlessly complicated and vague, and I could not make it work for my purposes. (I think it's only meant to serve a site, post-build.)
So, I decided to figure out how to create a custom one from an official node:alpine (latest) image... just something to use for a quick dev environment setup regardless of which computer I'm using. (If I wanted to deploy somewhere other than Netlify, I could quickly add an Nginx image/service and a super basic conf file.)
After hours of learning, research, and experimenting (and possibly some frustration), I present you with my version of a working Dockerfile! It will create a fully functional Docker image that installs all the required packages in Apline Linux (latest) for building Gatsby (and NextJS) sites and apps.
(Note: For NextJS sites, I simply change the final CMD and the port(s) to whatever I'm using for the site/app... usually 8080.)
FROM node:alpine # Also exposing VSCode debug ports EXPOSE 8000 9929 9230 RUN \ apk add --no-cache python make g++ && \ apk add vips-dev fftw-dev --no-cache --repository http://dl-3.alpinelinux.org/alpine/edge/community --repository http://dl-3.alpinelinux.org/alpine/edge/main && \ rm -fR /var/cache/apk/* RUN npm install -g gatsby-cli yarn WORKDIR /app COPY ./package.json . RUN yarn install && yarn cache clean COPY . . CMD ["yarn", "develop", "-H", "0.0.0.0" ]
(Note the setting of
GATSBY_WEBPACK_PUBLICPATH - this seemed to fix any HMR issues I was having when editing code.)
version: '3' services: web: build: context: . dockerfile: Dockerfile.dev ports: - "8000:8000" - "9929:9929" - "9230:9230" volumes: - /app/node_modules - .:/app environment: - NODE_ENV=development - GATSBY_WEBPACK_PUBLICPATH=/
You'll probably want to throw a
.dockerignore file into the project directory too, to ignore things like ./node_modules, ./cache, ./public, any .DS_Store files, etc. (Much like a
To run it, from the project's root directory run:
$ docker-compose up --build
After running that, I'm ready to work... whether I'm on my Macbook Pro or on my Windows desktop. Hopefully this helps you too!