CODEWITHSUNDEEP
node.jslinuxdockerdockerfile
Dmytro Mysak
Dmytro Mysak

Reputation: 1252

Get audio from docker container to host

I have a simple node.js app where I start playing a song from URL (using ffplay as a child process).

Locally everything works fine.

In Docker when I start playing, everything ok, no errors, but there is no sound on my laptop.

Is it possible to "expose" audio from docker to the host machine?

here is my dockerfile

FROM node:14.15.0-alpine
RUN apk add --no-cache ffmpeg
WORKDIR /app
COPY package*.json ./
RUN npm ci --production
COPY src/ src/
CMD ["npm", "run", "start:prod"]

I run this command

docker build . -t pig && docker run --rm --device /dev/snd --name pig pig

Upvotes: 1

Views: 344

Answers (1)

Gonzalo Matheu
Gonzalo Matheu

Reputation: 10064

You need to use the device flag to share host's sound with the container:

docker run ... --device /dev/snd image-name

Upvotes: 1

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