Tighten context during build of nginx and simpleid
diff --git a/nginx/Dockerfile b/nginx/Dockerfile
index 4114ba1..0d48149 100644
--- a/nginx/Dockerfile
+++ b/nginx/Dockerfile
@@ -12,7 +12,7 @@
 			-out /etc/ssl/certs/sa-selfsigned.crt && \
 	apk del openssl
 
-COPY nginx/Dockerfile.entrypoint /nginx-entrypoint
+COPY Dockerfile.entrypoint /nginx-entrypoint
 RUN chmod 544 /nginx-entrypoint
 
 ENTRYPOINT ["/bin/sh", "/nginx-entrypoint"]