Link image to original repository on GitHub via LABEL

Author: rpardini

Dockerfile

@@ -6,6 +6,9 @@ ARG BASE_IMAGE="rpardini/nginx-proxy-connect-stable-alpine:nginx-1.18.0-alpine-3
 ARG BASE_IMAGE_SUFFIX=""
 FROM ${BASE_IMAGE}${BASE_IMAGE_SUFFIX}
 
+# Link image to original repository on GitHub
+LABEL org.opencontainers.image.source https://github.com/rpardini/docker-registry-proxy
+
 # apk packages that will be present in the final image both debug and release
 RUN apk add --no-cache --update bash ca-certificates-bundle coreutils openssl