Merge branch '3-change-parent-image-to-alpine' into 'main'

Resolve "change parent image to alpine"

Closes #3

See merge request !3

Dockerfile

 # syntax=docker/dockerfile:1
-FROM python:3.8
+FROM python:3.8-alpine
 
 LABEL \
     org.label-schema.dockerfile="/Dockerfile" \
@@ -12,7 +12,7 @@ LABEL \
     org.label-schema.vendor="SUB/FE"
 
 
-RUN useradd --create-home repdav
+RUN adduser -D repdav
 USER repdav
 
 COPY --chown=repdav requirements.txt /