build: Update Dockerfile (#321)

Dockerfile

@@ -1,8 +1,8 @@
 FROM debian:trixie-slim
 
 ARG DEBCONF_NOWARNINGS="yes"
-ARG DEBIAN_FRONTEND noninteractive
-ARG DEBCONF_NONINTERACTIVE_SEEN true
+ARG DEBIAN_FRONTEND "noninteractive"
+ARG DEBCONF_NONINTERACTIVE_SEEN "true"
 
 RUN apt-get update \
     && apt-get --no-install-recommends -y install \
@@ -33,7 +33,7 @@ ENV RAM_SIZE "1G"
 ENV DISK_SIZE "16G"
 ENV BOOT "http://www.example.com/image.iso"
 
-ARG VERSION_ARG="0.0"
+ARG VERSION_ARG "0.0"
 RUN echo "$VERSION_ARG" > /run/version
 
 ENTRYPOINT ["/usr/bin/tini", "-s", "/run/entry.sh"]

src/disk.sh

@@ -85,7 +85,7 @@ isCow() {
   if [[ "${FS,,}" == "xfs" || "${FS,,}" == "zfs" || "${FS,,}" == "btrfs" || "${FS,,}" == "bcachefs" ]]; then
     return 0
   fi
-       
+
   return 1
 }
 
@@ -128,7 +128,7 @@ createDisk() {
       fi
 
       if [[ "$ALLOCATE" == [Nn]* ]]; then
-    
+
         # Create an empty file
         if ! truncate -s "$DATA_SIZE" "$DISK_FILE"; then
           rm -f "$DISK_FILE"