Add OpenWrt bootlog in container log when debug is enabled.

docker-compose.yml

@@ -87,7 +87,7 @@ services:
       #DISABLE_OPENWRT_AUTO_UPGRADE: "true"
 
       # Enable debugging mode.
-      # Showing the final qemu command
+      # Showing the final qemu command and OpenWrt bootlog
       # If unset -> disabled
       #DEBUG: "true"
 

src/cleanup_container.sh

@@ -22,4 +22,14 @@ trap cleanup SIGTERM SIGINT
 
 # Wait forever to prevent that multirun will stop the complete container
 # This script purpose is only to catch the signal SIGTERM and SIGINT and to execute some last commands
+
+# Put OpenWrt bootlog into container log
+if [[ $DEBUG = "true" ]]; then
+ # Get bootlog via TCP, remove non-printable characters
+ nc -l -p 4555 | sed 's/[^[:print:]]//g' |
+ while IFS= read -r line; do
+    echo $line
+ done
+fi
+
 sleep infinity & wait

src/run_openwrt.sh

@@ -270,7 +270,8 @@ if [[ $DEBUG = "true" ]]; then
 
   # Not working as expected grub output will delete previous log messages
   #DEBUG_ARGS="-serial stdio" # Show OpenWrt kernel message in container log
-  DEBUG_ARGS=""
+  # Use a TCP connection as a workaround
+  DEBUG_ARGS="-serial tcp:localhost:4555"
 else
   DEBUG_ARGS=""
 fi