How do I install python3 in docker with golang as my base image?

Question

My docker file looks something like this:

# Start from a Debian image with the latest version of Go installed
# and a workspace (GOPATH) configured at /go.
FROM golang

# Install our Go dependencies
RUN go get -u golang.org/x/oauth2...
ENTRYPOINT /go/bin/...

My base application will be running on golang,but I need to access a python script from golang for some processing. How do I install python3 in my docker container and install some of python dependencies using pip .

Answer 1

If you're indeed using a debian image like this one:

https://github.com/docker-library/golang/blob/cffcff7fce7f6b6b5c82fc8f7b3331a10590a661/1.9/stretch/Dockerfile

Which is tag: golang:1.9-stretch

Debian stretch comes with python3 already https://wiki.debian.org/Python

So no further action is required. You would need to install pip however and then continue as normal.

Answer 2

You can install python3 on official golang docker image by adding following lines to your Dockerfile:

RUN apt-get update
RUN apt-get -y install python3
RUN apt-get -y install python3-setuptools
RUN apt-get -y install python3-pip