How to use Deno with Docker
Deno and Docker are two great technologies. Luckily you can easily use them together.
The best resource for this that I've found is hayd/deno-docker. It currently has only a few watchers or stars, but seems to be the main Docker image for Deno.
Docker files for deno published on Dockerhub:
- Alpine Linux: hayd/alpine-deno (~23Mb)
- Centos: hayd/centos-deno (~87Mb)
- Debian: hayd/debian-deno (~47Mb)
- Ubuntu: hayd/ubuntu-deno (~48Mb)
The amazonlinux1 build is used to run deno on AWS Lambda.
main.ts from your working directory:
$ docker run -it --init -p 1993:1993 -v $PWD:/app hayd/alpine-deno:1.0.0 --allow-net /app/main.ts
-p 1993:1993 maps port 1993 on the container to 1993 on the host,
-v $PWD:/app mounts the host working directory to
/app on the container, and
--allow-net /app/main.ts is passed to deno on the container.
As a Dockerfile
FROM hayd/alpine-deno:1.0.0 EXPOSE 1993 # The port that your application listens to. WORKDIR /app # Prefer not to run as root. USER deno # Cache the dependencies as a layer (the following two steps are re-run only when deps.ts is modified). # Ideally cache deps.ts will download and compile _all_ external files used in main.ts. COPY deps.ts . RUN deno cache deps.ts # These steps will be re-run upon each file change in your working directory: ADD . . # Compile the main app so that it doesn't need to be compiled each startup/entry. RUN deno cache main.ts CMD ["--allow-net", "main.ts"]
and build and run this locally:
$ docker build -t app . && docker run -it --init -p 1993:1993 app
To see more details check out the examples directory at hayd/deno-docker.