Add curl for troubleshooting

Update Dockerfile to add/install curl for troubleshooting

Signed-off-by: Scott Lowe <[email protected]>

Dockerfile

@@ -6,7 +6,9 @@ LABEL maintainer="Scott S. Lowe <[email protected]>"
 ARG GIT_COMMIT=unspecified
 LABEL git_commit=$GIT_COMMIT
 
-RUN pip install flask
+RUN pip install flask && \
+    apk add --no-cache curl && \
+    rm -rf /var/cache/apk/*
 
 COPY app /app/