Option to change the ssh port used by images

src/freedombone-image

 # Whether to reduce the number of decisions during interactive install
 MINIMAL_INSTALL="yes"
 
+# default SSH port
+SSH_PORT=2222
+
 while [[ $# > 1 ]]
 do
 key="$1"
     shift
     MINIMAL_INSTALL="$1"
     ;;
+    --ssh|--sshport)
+    shift
+    SSH_PORT="$1"
+    ;;
     *)
     # unknown option
     ;;
     IMAGE_SIZE="$IMAGE_SIZE" \
     SSH_PUBKEY="$SSH_PUBKEY" \
     GENERIC_IMAGE="$GENERIC_IMAGE" \
-    MINIMAL_INSTALL="$MINIMAL_INSTALL"
+    MINIMAL_INSTALL="$MINIMAL_INSTALL" \
+    SSH_PORT="$SSH_PORT"
 
 if [ ! "$?" = "0" ]; then
     echo $'Build failed'
 You will be able to log into it with:
 "
 if [[ $IMAGE_TYPE != "virtualbox"* && $IMAGE_TYPE != "qemu"* ]]; then
-    echo $"    ssh $USERNAME@$DEFAULT_DOMAIN_NAME -p 2222
+    echo $"    ssh $USERNAME@$DEFAULT_DOMAIN_NAME -p $SSH_PORT
 
     Password: $PASSWORD
 "

src/freedombone-image-customise

 # Whether this is a generic image for mass redistribution on the interwebs
 GENERIC_IMAGE="no"
 
+# default SSH port
+SSH_PORT=2222
+
 enable_eatmydata_override() {
     chroot $rootdir apt-get install --no-install-recommends -y eatmydata
     if [ -x $rootdir/usr/bin/eatmydata ] && \
 }
 
 configure_ssh() {
-    sed -i "s/Port .*/Port 2222/g" $rootdir/etc/ssh/sshd_config
+    sed -i "s/Port .*/Port ${SSH_PORT}/g" $rootdir/etc/ssh/sshd_config
 
     if [[ "$SSH_PUBKEY" != "no" ]]; then
         if [ ! -d $rootdir/home/$MY_USERNAME/.ssh ]; then

src/freedombone-image-make

 export SSH_PUBKEY
 export GENERIC_IMAGE
 export MINIMAL_INSTALL
+export SSH_PORT
 
 # Locate vmdebootstrap program fetched in Makefile
 basedir=`pwd`
 sudo sed -i "s|SSH_PUBKEY=.*|SSH_PUBKEY=${SSH_PUBKEY}|g" $TEMP_CUSTOMISE
 sudo sed -i "s|GENERIC_IMAGE=.*|GENERIC_IMAGE=${GENERIC_IMAGE}|g" $TEMP_CUSTOMISE
 sudo sed -i "s|MINIMAL_INSTALL=.*|MINIMAL_INSTALL=\"${MINIMAL_INSTALL}\"|g" $TEMP_CUSTOMISE
+sudo sed -i "s|SSH_PORT=.*|SSH_PORT=\"${SSH_PORT}\"|g" $TEMP_CUSTOMISE
 
 echo $"starting $VMDEBOOTSTRAP"
 # Run vmdebootstrap script to create image