Need help settings up pipeline

[Merichbier]

Hi all,

I'm having trouble using the envsubst command in my pipeline. I'm using it in a script file but it says :
"envsubst: not found"

I try to add a line under script to install it:
"apt-get install envsubst"

Without success..

I'm using python:3.7.3 as base image for my pipelines..

Can someone help me ? Why can't I use envsubst and/or install it ?

Thanks for your help

Alain

[Nikolai Zhukov]

FROM python:3.7.4-alpine3.10
RUN pip3 install envsubst

[Nikolai Zhukov]

It is Dockerfile