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DOCKER+DENO episode 2: Containerize a Deno FULL REST API from Traversymedia Deno Crash course

francescoxx profile image Francesco Ciulla ・2 min read

To follow Please check the Deno crash course by Traversymedia
https://www.youtube.com/watch?v=NHHhiqwcfRM

Deno is the buzzword of the moment, and we still don't know how it will end.

Honestly, I am a fan of node, but I was intrigued, after following the Deno Crash Course, by Traversymedia I tried to containerize it with docker.

Warning!
this example is based on this docker image https://hub.docker.com/r/hayd/deno

Which is not an official deno repository

Github Repository: https://github.com/FrancescoXX/deno-docker-api

JUST TEST

docker run -it --init -p 8000:8000 --init francescoxx/deno-docker:0.0.2
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Short version

you can just clone the repository

git clone https://github.com/FrancescoXX/deno-docker-api
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navigate to the folder where the docker-compose.yml is located, and run

docker-compose up --build
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Done!


Long version

If you want to follow along, and you use Visual Studio Code, I suggest you install this extension:

Alt Text


Step 1

Follow the traversymedia Deno Crash course
https://www.youtube.com/watch?v=NHHhiqwcfRM


Step 2

then, we create a very simple Dockerfile, using the hayd/alpine-deno:1.0.0 image

FROM hayd/alpine-deno:1.0.0

EXPOSE 8000

WORKDIR /app

USER deno

COPY . .

CMD ["run", "--allow-net", "server.ts"]
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STEP 3

And last, we create a very simple docker-compose.yml file, which is no needed for now, but it could be useful in the future, for example, if we start using a database or some other services

We define port 8000 as both inner and outer one and a default network

version: "3.7"

services:
  deno:
    image: "deno-docker:0.0.2"
    build: .
    ports:
      - "8000:8000"
    networks: 
      - deno

networks:
  deno: {}
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from the folder where the docker-compose.yml file is located, we build the image:

docker-compose build
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And finally, we can launch the service with this command

docker-compose up deno
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visit localhost:8000 from a browser

Traversymedia Deno Crash course:

https://www.youtube.com/watch?v=NHHhiqwcfRM

Github Repository: Github Repository: https://github.com/FrancescoXX/deno-docker-api

Final note: this doesn't seem that useful, as we are just simply containerizing a deno rest api.
Things will get interesting on the database part :)

Discussion (5)

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Danny Thompson

This was fantastic!

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Chris Dixon

Thanks Francesco, great read!

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Saswata Mukherjee

Awesome article!!