How do I setup only python 2.7 in a docker container?

Question

I have node app and in one use case I am calling python script from node using python-shell . I am trying to setup this app on docker and my Dockerfile looks something like this:

FROM debian:latest
# replace shell with bash so we can source files
RUN rm /bin/sh && ln -s /bin/bash /bin/sh
# update the repository sources list
# and install dependencies
RUN apt-get update 
&& apt-get install -y curl 
&& apt-get -y autoclean
# nvm environment variables
ENV NVM_DIR /usr/local/nvm
ENV NODE_VERSION 10.15.3
# install nvm
# https://github.com/creationix/nvm#install-script
RUN curl --silent -o-https://raw.githubusercontent.com/creationix/nvm/v0.31.2/install.sh | bash

# install node and npm
RUN source $NVM_DIR/nvm.sh 
&& nvm install $NODE_VERSION 
&& nvm alias default $NODE_VERSION 
&& nvm use default
# add node and npm to path so the commands are available
ENV NODE_PATH $NVM_DIR/v$NODE_VERSION/lib/node_modules
ENV PATH $NVM_DIR/versions/node/v$NODE_VERSION/bin:$PATH
# confirm installation
RUN node -v
RUN npm -v
RUN apt-get -y install python2.7
COPY package.json .
RUN npm install
COPY . .
CMD ["npm","run","start"]

after building and running this container when I try to invoke use case where python script gets called from node I am getting this error.

null
events.js:174
      throw er; // Unhandled 'error' event
      ^

Error: spawn /usr/lib/python2.7 EACCES
    at Process.ChildProcess._handle.onexit (internal/child_process.js:240:19)
    at onErrorNT (internal/child_process.js:415:16)
    at process._tickCallback (internal/process/next_tick.js:63:19)
Emitted 'error' event at:
    at Process.ChildProcess._handle.onexit (internal/child_process.js:246:12)
    at onErrorNT (internal/child_process.js:415:16)
    at process._tickCallback (internal/process/next_tick.js:63:19)
npm ERR! code ELIFECYCLE
npm ERR! errno 1

Help on setting up just python2.7 in a docker container?

Asked By: lila

||

Source

Answer 1

You can use python base image

FROM python:2.7

This base image with have python pre-configured and you don’t need to install python seperately. Hope it helps.

Here is the list of available image

For quick reference please check
https://blog.realkinetic.com/building-minimal-docker-containers-for-python-applications-37d0272c52f3

Answered By: prashant

Answer 2

You can use “FROM python:2.7” , the base image.

FROM python:2.7

WORKDIR /usr/src/app

COPY requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt

COPY . .

CMD [ "python", "./your-daemon-or-script.py" ]

(documentation link)please find some examples here

Answered By: Sarath Kumar

How do I setup only python 2.7 in a docker container?

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