Update debian11_setup.sh

setup/debian11_setup.sh

@@ -7,8 +7,11 @@ set -o nounset  #Treat unset variables as an error
 set -o pipefail #Pipe will exit with last non-zero status if applicable
 shopt -s expand_aliases
 alias die='EXIT=$? LINE=$LINENO error_exit'
-CHECKMARK='\033[0;32m\xE2\x9C\x94\033[0m'
 CROSS='\033[1;31m\xE2\x9D\x8C\033[0m'
+CHECKMARK='\033[0;32m\xE2\x9C\x94\033[0m'
+RETRY_NUM=5
+RETRY_EVERY=3
+NUM=$RETRY_NUM
 trap die ERR
 trap 'die "Script interrupted."' INT
 
@@ -28,12 +31,17 @@ function msg() {
 msg "Setting up container OS..."
 sed -i "/$LANG/ s/\(^# \)//" /etc/locale.gen
 locale-gen >/dev/null
-sleep 3
 while [ "$(hostname -I)" = "" ]; do
-  echo -e "${CROSS} \e[1;31m No network: \e[0m $(date)"
-  sleep 3
+  1>&2 echo -e "${CROSS} \e[1;31m No Network: \e[0m $(date)"
+  sleep $RETRY_EVERY
+  ((NUM--))
+  if [ $NUM -eq 0 ]
+  then
+    1>&2 echo -e "${CROSS} \e[1;31m No Network After $RETRY_NUM Tries \e[0m"
+    exit 1
+  fi
 done
-  echo -e "${CHECKMARK} \e[1;92m Network connected: \e[0m $(hostname -I)"
+  echo -e "${CHECKMARK} \e[1;92m Network Connected: \e[0m $(hostname -I)"
 
 msg "Updating container OS..."
 apt update &>/dev/null