Images: Use chown with : instead of ..

images/nginx/rootfs/Dockerfile

@@ -66,7 +66,7 @@ RUN apk update \
   ); \
   for dir in "${writeDirs[@]}"; do \
   mkdir -p ${dir}; \
-  chown -R www-data.www-data ${dir}; \
+  chown -R www-data:www-data ${dir}; \
   done'
 
 EXPOSE 80 443

images/nginx/rootfs/build.sh

@@ -624,7 +624,7 @@ adduser -S -D -H -u 101 -h /usr/local/nginx -s /sbin/nologin -G www-data -g www-
 
 for dir in "${writeDirs[@]}"; do
   mkdir -p ${dir};
-  chown -R www-data.www-data ${dir};
+  chown -R www-data:www-data ${dir};
 done
 
 rm -rf /etc/nginx/owasp-modsecurity-crs/.git

rootfs/Dockerfile

@@ -59,7 +59,7 @@ RUN bash -xeu -c ' \
   ); \
   for dir in "${writeDirs[@]}"; do \
     mkdir -p ${dir}; \
-    chown -R www-data.www-data ${dir}; \
+    chown -R www-data:www-data ${dir}; \
   done' \
   # LD_LIBRARY_PATH does not work so below is needed for  opentelemetry/other modules
   # Put libs of newer modules under `/modules_mount/<other>/lib` and add that path below

rootfs/Dockerfile-chroot

@@ -78,7 +78,7 @@ RUN bash -xeu -c ' \
   ); \
   for dir in "${writeDirs[@]}"; do \
     mkdir -p ${dir}; \
-    chown -R www-data.www-data ${dir}; \
+    chown -R www-data:www-data ${dir}; \
   done' \
   # LD_LIBRARY_PATH does not work so below is needed for  opentelemetry/other modules
   # Put libs of newer modules under `/modules_mount/<other>/lib` and add that path below
@@ -103,7 +103,7 @@ RUN  ln -sf /chroot/etc/nginx /etc/nginx \
   && touch /chroot/var/log/nginx/access.log \
   && chown www-data:www-data /chroot/var/log/nginx/access.log \
   && echo "" > /chroot/etc/resolv.conf \
-  && chown -R www-data.www-data /chroot/var/log/nginx /chroot/etc/resolv.conf \
+  && chown -R www-data:www-data /chroot/var/log/nginx /chroot/etc/resolv.conf \
   && mknod -m 0666 /chroot/dev/null c 1 3 \
   && mknod -m 0666 /chroot/dev/random c 1 8 \
   && mknod -m 0666 /chroot/dev/urandom c 1 9 \

rootfs/chroot.sh

@@ -39,7 +39,7 @@ writeDirs=( \
 
 for dir in "${writeDirs[@]}"; do
   mkdir -p ${dir};
-  chown -R www-data.www-data ${dir};
+  chown -R www-data:www-data ${dir};
 done
 
 mkdir -p  /chroot/lib /chroot/proc /chroot/usr /chroot/bin /chroot/dev /chroot/run