why do volumes work that way

1 files changed, 2 insertions, 2 deletions

diff --git a/Dockerfile b/Dockerfile
index 731b784..cac9cee 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM jekyll/jekyll AS build
 COPY . /srv/jekyll
-RUN jekyll build
+RUN jekyll build && cp -r /srv/jekyll/_site /var/jekyll_site
 
 FROM nginx
-COPY --from=build /srv/jekyll/_site /usr/share/nginx/html
+COPY --from=build /var/jekyll_site /usr/share/nginx/html