Feature/update docker healthcheck (#1218)

* update-docker-healthcheck

* Update nginx.config

Co-authored-by: Geng Tan <geng.tan@limeade.com>

RetPageOriginDockerfile

@@ -25,7 +25,6 @@ copy --from=ssl /ssl /ssl
 copy --from=builder /spoke/rawspoke/pages /www/spoke/pages
 copy --from=builder /spoke/rawspoke/assets /www/spoke/assets
 copy scripts/docker/nginx.config /etc/nginx/conf.d/default.conf
-run echo "1" > /www/_healthz.html
 copy scripts/docker/run.sh /run.sh
 run chmod +x /run.sh && cat /run.sh
 cmd bash /run.sh

scripts/docker/nginx.config

@@ -12,6 +12,6 @@ server {
 server {
     listen 1111;
     location =/_healthz {
-        root /www/_healthz.html;
-    }    
+        return 200 ;
+    }
 }