SCL python on oel6 linux inside a docker container

Question

I have a dockerfile building oel6 linux that uses the SCL python27.

For the docker build, using the SHELL command works to execute the commands correctly (i.e. if i were to insert a RUN python --version i get 2.7).

Creating a /root/.bashrc that sets source scl_source enable python27 works great for any interactive sessions with the container (python --version 2.7)

However, any commands executed non-interactively (i.e. docker run oel6 pyhton --version) is always 2.6 no matter what i try.

Take what i've tried with a grain of salt as i may have tried it incorrectly but i've tried setting the entrypoint as the command, i've tried executing a script that contains the commands as an entrypoint, i've tried putting it in /etc/profile.d/.

Any help appreciated.

I suggest that you share your Dockerfile / entrypoint script to get better help — Chaoxiang N, Aug 16 '19 at 06:23
Why on earth are you using oel6 and trying to add SCL python27 on it in a docker container?!! — Michael Hampton, Aug 16 '19 at 08:04
Yes, but when they're apparently ridiculous, you should at least question what is going on. — Michael Hampton, Aug 16 '19 at 19:14

score 1 · Accepted Answer · answered Aug 16 '19 at 15:52

1

I eventually found this site: https://austindewey.com/2019/03/26/enabling-software-collections-binaries-on-a-docker-image/

I had my entrypoint script wrong. What works is:

#!/bin/bash
source scl_source enable python27
exec "$@"

answered Aug 16 '19 at 15:52

Taekahn

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SCL python on oel6 linux inside a docker container

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