add python env

Signed-off-by: Gong Sophia <sophia.gong@intel.com>

python/Dockerfile

@@ -30,6 +30,7 @@ RUN cd / && \
 
 FROM clearlinux/os-core:latest
 
+ENV NAME="clearlinux-python"
 COPY --from=builder /install_root /
 
 CMD ["python3"]

python/README.md

@@ -55,6 +55,12 @@ Docker Hub.
 <!-- Optional -->
 ### Deploy with Kubernetes
 
+
+### Environment variables
+
+The python image has environment variable 'NAME' to indicate clearlinux python docker container.
+
+
 <!-- Required -->
 ## Build and modify: