Dont edit configs if requested

Dockerfile

@@ -22,6 +22,8 @@ ENV PASS "secret"
 ENV UID 1000
 ENV GID 1000
 ENV RW true
+ENV CustomConfig false
+ENV CONFIG "/etc/samba/smb.conf"
 
 HEALTHCHECK --interval=60s --timeout=15s CMD smbclient -L \\localhost -U % -m SMB3
 

samba.sh

@@ -8,10 +8,6 @@ share="/storage"
 # Create shared directory
 mkdir -p "$share" || { echo "Failed to create directory $share"; exit 1; }
 
-# Copy config file template
-rm -f /etc/samba/smb.custom
-cp /etc/samba/smb.conf /etc/samba/smb.custom
-
 # Check if the smb group exists, if not, create it
 if ! getent group "$group" &>/dev/null; then
     groupadd "$group" || { echo "Failed to create group $group"; exit 1; }
@@ -38,30 +34,34 @@ fi
 # Change Samba password
 echo -e "$PASS\n$PASS" | smbpasswd -a -s "$USER" || { echo "Failed to change Samba password for $USER"; exit 1; }
 
-# Update force user and force group in smb.conf
-sed -i "s/^\(\s*\)force user =.*/\1force user = $USER/" "/etc/samba/smb.custom"
-sed -i "s/^\(\s*\)force group =.*/\1force group = $group/" "/etc/samba/smb.custom"
+# Use custom config if not read-only system
+if [[ "$CustomConfig" == [Ff0]* ]]; then
 
-# Verify if the RW variable is equal to false (indicating read-only mode) 
-if [[ "$RW" == [Ff0]* ]]; then
+    # Update force user and force group in smb.conf
+    sed -i "s/^\(\s*\)force user =.*/\1force user = $USER/" "$CONFIG"
+    sed -i "s/^\(\s*\)force group =.*/\1force group = $group/" "$CONFIG"
 
-    # Adjust settings in smb.conf to set share to read-only
-    sed -i "s/^\(\s*\)writable =.*/\1writable = no/" "/etc/samba/smb.custom"
-    sed -i "s/^\(\s*\)read only =.*/\1read only = yes/" "/etc/samba/smb.custom"
+    # Verify if the RW variable is equal to false (indicating read-only mode) 
+    if [[ "$RW" == [Ff0]* ]]; then
 
-else
+        # Adjust settings in smb.conf to set share to read-only
+        sed -i "s/^\(\s*\)writable =.*/\1writable = no/" "$CONFIG"
+        sed -i "s/^\(\s*\)read only =.*/\1read only = yes/" "$CONFIG"
 
-    # Set permissions for share directory if new (empty), leave untouched if otherwise
-    if [ -z "$(ls -A "$share")" ]; then
-      chmod 0770 "$share" || { echo "Failed to set permissions for directory $share"; exit 1; }
-      chown "$USER:$group" "$share" || { echo "Failed to set ownership for directory $share"; exit 1; }
-    fi
+    else
 
+        # Set permissions for share directory if new (empty), leave untouched if otherwise
+        if [ -z "$(ls -A "$share")" ]; then
+          chmod 0770 "$share" || { echo "Failed to set permissions for directory $share"; exit 1; }
+          chown "$USER:$group" "$share" || { echo "Failed to set ownership for directory $share"; exit 1; }
+        fi
+
+    fi
 fi
 
 # Start the Samba daemon with the following options:
 #  --foreground: Run in the foreground instead of daemonizing.
 #  --debug-stdout: Send debug output to stdout.
 #  --debuglevel=1: Set debug verbosity level to 1.
 #  --no-process-group: Don't create a new process group for the daemon.
-exec smbd --configfile=/etc/samba/smb.custom --foreground --debug-stdout --debuglevel=1 --no-process-group
+exec smbd --configfile=$CONFIG --foreground --debug-stdout --debuglevel=1 --no-process-group