CODEWITHSUNDEEP
pythonnode.jsdocker
Jack
Jack

Reputation: 1076

How do I use multiple programming languages in Docker?

My project, written in Node.js, runs a Python file that needs to be built. Previously, I have used a script to set up the project when pulled from GitHub. I'd like to use Docker instead but am having issues when running multiple FROMs. My understanding is that FROM creates a new image and it is for this reason that my project build fails. What is the solution to this?

Original Shell Script

yarn
git clone https://github.com/<directory>
mv <directory> <new_name>
cd <directory>
virtualenv venv
source venv/bin/activate
pip3 install -r requirements.txt

Attempted Dockerfile

FROM python:3.6

RUN mkdir -p /usr/src/app

COPY . /usr/src/app/
WORKDIR /usr/src/app

RUN git clone https://github.com/<directory>
RUN mv /usr/src/app/<directory> /usr/src/app/<new_name>

RUN pip3 install -r <new_name>/requirements.txt

FROM node:11

WORKDIR /usr/src/app

RUN npm install --production

EXPOSE 3000
ENTRYPOINT npm start

Upvotes: 3

Views: 1891

Answers (1)

Amit Nanaware
Amit Nanaware

Reputation: 3346

You have to use any one image and install other application into that image. So your dockerfile may look like:

FROM node:11

RUN mkdir -p /usr/src/app

COPY . /usr/src/app/
WORKDIR /usr/src/app

RUN git clone https://github.com/<directory>
RUN mv /usr/src/app/<directory> /usr/src/app/<new_name>

RUN Command to install python 3.6 and pip3

RUN pip3 install -r <new_name>/requirements.txt

WORKDIR /usr/src/app

RUN npm install --production

EXPOSE 3000
ENTRYPOINT npm start

You can refer this sample dockefile.

Upvotes: 2

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