Update Dockerfile

Dockerfile

@@ -6,12 +6,12 @@ RUN git clone -b Rel-17 https://github.com/jdegre/5GC_APIs Rel-16
 RUN git clone -b Rel-17 https://github.com/jdegre/5GC_APIs Rel-15
 
 
-FROM nginxinc/nginx-unprivileged as production-stage
-COPY dist /usr/local/nginx/html
-COPY --from=build-stage /app/Rel-18 /usr/local/nginx/html/Rel-18
-COPY --from=build-stage /app/Rel-17 /usr/local/nginx/html/Rel-17
-COPY --from=build-stage /app/Rel-16 /usr/local/nginx/html/Rel-16
-COPY --from=build-stage /app/Rel-15 /usr/local/nginx/html/Rel-15
+FROM nginxinc/nginx-unprivileged:alpine as production-stage
+COPY dist /usr/share/nginx/html
+COPY --from=build-stage /app/Rel-18 /usr/share/nginx/html/Rel-18
+COPY --from=build-stage /app/Rel-17 /usr/share/nginx/html/Rel-17
+COPY --from=build-stage /app/Rel-16 /usr/share/nginx/html/Rel-16
+COPY --from=build-stage /app/Rel-15 /usr/share/nginx/html/Rel-15
 RUN nginx -V
 RUN cat /etc/nginx/nginx.conf