support kantan and ngcphalt bootoption

When deploying inside Kantan we want to be able to skip certain
stuff while providing data to the outside host. The bootoption
'kantan' provides that option and since we want to be able to
halt the system after installation also support the 'ngcphalt'
bootoption.

From: Michael Prokop <mprokop@sipwise.com>

deployment.sh

@@ -40,6 +40,8 @@ USE_LOCAL_MIRROR=true
 LINUX_HA3=false
 TRUNK_VERSION=false
 DEBIAN_RELEASE=squeeze
+KANTAN=false
+HALT=false
 export DISK=sda # will be configured as /dev/sda
 
 ### helper functions {{{
@@ -219,6 +221,13 @@ if checkBootParam ngcpprofile && [ -n "$NETSCRIPT_SERVER" ] ; then
   fi
 fi
 
+if checkBootParam kantan ; then
+  KANTAN=true
+fi
+
+if checkBootParam ngcphalt ; then
+  HALT=true
+fi
 ## }}}
 
 ## interactive mode {{{
@@ -299,6 +308,7 @@ for param in $* ; do
     *ngcphav3*) LINUX_HA3=true; PRO_EDITION=true;;
     *ngcpnobonding*) BONDING=false;;
     *ngcpbonding*) BONDING=true;;
+    *ngcphalt*) HALT=true;;
   esac
   shift
 done
@@ -497,6 +507,12 @@ fi
 # measure time of installation procedure - everyone loves stats!
 start_seconds=$(cut -d . -f 1 /proc/uptime)
 
+if "$KANTAN" ; then
+  if [[ "$SHLVL" == "2" ]] || [ -n "${NETSCRIPT:-}" ] ; then
+    echo "starting installation process at $(date)" | telnet 10.0.2.2 8888 || true
+  fi
+fi
+
 if "$LOGO" ; then
   echo -ne "\ec\e[1;32m"
   logo
@@ -1143,6 +1159,22 @@ fi
 [ -n "$start_seconds" ] && SECONDS="$[$(cut -d . -f 1 /proc/uptime)-$start_seconds]" || SECONDS="unknown"
 echo "Successfully finished deployment process [$(date) - running ${SECONDS} seconds]"
 
+# do not prompt when running inside kantan
+if "$KANTAN" ; then
+  if [[ "$SHLVL" == "2" ]] || [ -n "${NETSCRIPT:-}" ] ; then
+    echo "finished deployment process at $(date) [running ${SECONDS} seconds]" | telnet 10.0.2.2 8888 || true
+  fi
+  # if booting via ngcphalt then just system off...
+  if "$HALT" ; then
+    echo "triggering halt as requsted" | telnet 10.0.2.2 8888 || true
+    for key in s u o ; do
+      echo $key > /proc/sysrq-trigger
+      sleep 2
+    done
+  fi
+  exit 0
+fi
+
 echo "Do you want to [r]eboot or [h]alt the system now? (Press any other key to cancel.)"
 unset a
 read a