Make both Python3 and Node available in same container

Question

I have a Dockerfile for dockerizing a Node.js app:

FROM node:carbon

# Create app directory
WORKDIR /usr/src/app

# Install app dependencies
# A wildcard is used to ensure both package.json AND package-lock.json are copied
COPY package*.json ./

RUN npm install

# Bundle app source
COPY . .

EXPOSE 80
CMD ["npm","start"]

But I also need to make Python 3 available. As I understand, multiple FROM statements in a Dockerfile will not work, as it only takes the most recent FROM. How can I make both Python3 and Node available inside the same container?

Philipp Claßen · Accepted Answer · 2018-01-01 22:44:33Z

4

It is true that you cannot use multiple FROM statements to get node from one base image and python from another.

What I would recommend is to settle on one base image and install the other application via the normal package manager. In general, installing Python 3 should be fairly straightforward, for example:

RUN apt-get update && \
    apt-get install -y python3 && \
    rm -rf /var/lib/apt/lists/*

edited Jan 1, 2018 at 22:44

answered Jan 1, 2018 at 21:41

Philipp Claßen

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4 Comments

hchandad Over a year ago

RUN apt add --no-cache python3

Philipp Claßen Over a year ago

@fins Thanks, I added the command. Have not set up docker properly on my current machine, but I'll test if it works with the node:carbon base image.

Cybernetic Over a year ago

Getting E: Command line option --no-cache is not understood. I am running this on Mac.

Matt Over a year ago

apt still warns it doesn't have a stable CLI interface so apt-get is better for scripts.

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