fix usage with multiple ip addresses (ipv4/ipv6)

use single call to get all information during installation
show and read out only first ip in webui

installation/includes/05_finish.sh

@@ -2,7 +2,6 @@
 
 finish() {
 local local_hostname=$(hostname)
-local local_ip_address=$(hostname -I)
   echo "####################### FINISHED ########################
 
 Installation complete!
@@ -13,7 +12,7 @@ In order to start, you need to reboot your Raspberry Pi.
 Your SSH connection will disconnect.
 
 After the reboot, you can access the WebApp in your browser at
-http://${local_hostname}.local or http://${local_ip_address}.
+http://${local_hostname}.local or http://${CURRENT_IP_ADDRESS}.
 Don't forget to upload files.
 
 Do you want to reboot now? [Y/n]" 1>&3

installation/routines/customize_options.sh

@@ -2,12 +2,19 @@
 
 _option_static_ip() {
   # ENABLE_STATIC_IP
-  CURRENT_IP_ADDRESS=$(hostname -I)
+  # Using the dynamically assigned IP address as it is the best guess to be free
+  # Reference: https://unix.stackexchange.com/a/505385
+  CURRENT_ROUTE=$(ip route get 8.8.8.8)
+  CURRENT_INTERFACE=$(echo "${CURRENT_ROUTE}" | awk '{ print $3; exit }')
+  CURRENT_GATEWAY=$(echo "${CURRENT_ROUTE}" | awk '{ print $5; exit }')
+  CURRENT_IP_ADDRESS=$(echo "${CURRENT_ROUTE}" | awk '{ print $7; exit }')
   clear 1>&3
   echo "----------------------- STATIC IP -----------------------
 
 Setting a static IP will save a lot of start up time.
-The adress will be '${CURRENT_IP_ADDRESS}'.
+The static adress will be '${CURRENT_IP_ADDRESS}'
+from interface '${CURRENT_INTERFACE}'
+with the gateway '${CURRENT_GATEWAY}'.
 
 Set a static IP? [Y/n]" 1>&3
   read -r response
@@ -265,8 +272,8 @@ Do you want to install Node? [Y/n]" 1>&3
 customize_options() {
   echo "Customize Options starts"
 
-  _option_static_ip
   _option_ipv6
+  _option_static_ip
   _option_autohotspot
   _option_bluetooth
   _option_disable_onboard_audio

installation/routines/optimize_boot_time.sh

@@ -40,26 +40,17 @@ _optimize_handle_network_connection() {
       echo "    Skipping. Already set up!" | tee /dev/fd/3
     else
       # DHCP has not been configured
-      # Reference: https://unix.stackexchange.com/a/307790/478030
-      INTERFACE=$(route | grep '^default' | grep -o '[^ ]*$')
-
-      # Reference: https://serverfault.com/a/31179/431930
-      GATEWAY=$(route -n | grep 'UG[ \t]' | awk '{print $2}')
-
-      # Using the dynamically assigned IP address as it is the best guess to be free
-      # Reference: https://unix.stackexchange.com/a/48254/478030
-      CURRENT_IP_ADDRESS=$(hostname -I)
-      echo "    * ${INTERFACE} is the default network interface" | tee /dev/fd/3
-      echo "    * ${GATEWAY} is the Router Gateway address" | tee /dev/fd/3
+      echo "    * ${CURRENT_INTERFACE} is the default network interface" | tee /dev/fd/3
+      echo "    * ${CURRENT_GATEWAY} is the Router Gateway address" | tee /dev/fd/3
       echo "    * Using ${CURRENT_IP_ADDRESS} as the static IP for now" | tee /dev/fd/3
 
       sudo tee -a $DHCP_CONF <<-EOF
 
 ## Jukebox DHCP Config
-interface ${INTERFACE}
+interface ${CURRENT_INTERFACE}
 static ip_address=${CURRENT_IP_ADDRESS}/24
-static routers=${GATEWAY}
-static domain_name_servers=${GATEWAY}
+static routers=${CURRENT_GATEWAY}
+static domain_name_servers=${CURRENT_GATEWAY}
 
 EOF
 

src/jukebox/components/hostif/linux/__init__.py

@@ -193,6 +193,9 @@ def get_ip_address():
         ip_address = p.stdout.strip().decode()
     else:
         ip_address = '127.0.0.1'
+
+    # only get first if multiple adresses are present (ipv4/ipv6)
+    ip_address = ip_address.split(' ')[0]
     return ip_address