Security/container build (#549)

* upd dockerfile to google distroless

* add pipelines

* add modifications to container

* upd to build

* add missing arg

* add arg for major/minor/patch python version

* upd python paths and pip install

* add perms to /app for user

* chg back to root

* rmv python3

* rmv not built python

* add shared

* add path and home

* upd for stdlib paths

* fix user input filesystem path vulns

* fix to consecutive dots

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Co-authored-by: Bionic711 <nadoyle@microsoft.com>

Author: Bionic711

application/single_app/Dockerfile

@@ -94,4 +94,5 @@ EXPOSE 5000
 
 USER 65532:65532
 
-ENTRYPOINT ["/app/venv/bin/python", "-c", "import runpy; runpy.run_path('/app/app.py', run_name='__main__')"]
+
+ENTRYPOINT ["/app/venv/bin/python", "-c", "import runpy; runpy.run_path('/app/app.py', run_name='__main__')"]