Merge pull request #277 from DataDog/fix-permission-error-docker

Fix permission error in Docker image (closes #276)

Dockerfile

@@ -1,8 +1,8 @@
 FROM python:3.10-slim-bullseye AS base
 LABEL org.opencontainers.image.source="https://github.com/DataDog/guarddog/"
 
-RUN addgroup --system --gid 1000 app \
-    && adduser --system --shell /bin/bash --uid 1000 --ingroup app app
+RUN addgroup --system --gid 1000 guarddog \
+    && adduser --system --shell /bin/bash --uid 1000 --ingroup guarddog guarddog
 
 RUN mkdir /app
 WORKDIR /app
@@ -22,6 +22,6 @@ RUN --mount=type=cache,mode=0755,id=pip,target=/root/.cache/pip \
 FROM base as app
 # copy built deps from builder
 COPY --from=builder /usr/local/bin/ /usr/local/bin/
-COPY --from=builder /usr/local/lib/python3.10/site-packages /usr/local/lib/python3.10/site-packages
-USER app
+COPY --from=builder --chown=guarddog /usr/local/lib/python3.10/site-packages /usr/local/lib/python3.10/site-packages
+USER guarddog
 ENTRYPOINT ["guarddog"]