improve post-setup serial console setup

[code/vinst.git] / vinst

diff --git a/vinst b/vinst
index f323d56fcbd0e39d489272129c96123efa117e6c..07f1925784a07278c51e3e328e8941f238e4acd1 100755 (executable)
--- a/vinst
+++ b/vinst
@@ -5,14 +5,28 @@ set -e
 # defaults
 RAM=512
 DISK=20
+CPUS=1
 STORAGE_POOL=default
 QEMU_URI=qemu:///system
 SUITE=wheezy
 CONSOLE='console=tty0 console=ttyS0,115200n8'
 DEBUG=0
+WIPE=0
+RESTART=0
 
 while [ -n "$1" ]; do
   case "$1" in
+    (--debug)
+      DEBUG=1
+      ;;
+    (-S|--suite)
+      shift
+      if [ -z "$1" ]; then
+        echo >&2 'E: --suite/-S needs suite argument'
+        exit 1
+      fi
+      SUITE="$1"
+      ;;
     (-n|--name)
       shift
       if [ -z "$1" ]; then
@@ -71,13 +85,36 @@ while [ -n "$1" ]; do
     (-a|--arch)
       shift
       if [ -z "$1" ]; then
-        echo >&2 'E: --arch/-a needs size argument'
+        echo >&2 'E: --arch/-a needs arch argument'
         exit 1
       fi
       ARCH="$1"
       ;;
+    (-m|--mac)
+      shift
+      if [ -z "$1" ]; then
+        echo >&2 'E: --mac/-m needs mac address argument'
+        exit 1
+      fi
+      MAC="$1"
+      ;;
+    (-c|--cpus)
+      shift
+      if [ -z "$1" ]; then
+        echo >&2 'E: --cpus/-c needs integer argument'
+        exit 1
+      fi
+      CPUS="$1"
+      ;;
     (--debug)
       DEBUG=1
+      set -vx
+      ;;
+    (--wipe)
+      WIPE=1
+      ;;
+    (--restart)
+      RESTART=1
       ;;
   esac
   shift
@@ -93,10 +130,15 @@ BASEDIR=$(cd ${0%/*}; pwd)
 tmpdir=$(mktemp -d)
 tar -C $BASEDIR/preseed/$SUITE -cf $tmpdir/commands.tar commands
 
-extra_args="auto $CONSOLE \
+extra_kargs="auto $CONSOLE \
 hostname=${HOSTNAME%%.*} \
 domain=${HOSTNAME#*.}"
 
+extra_opts=
+if [ -n "$DEBUG" ]; then
+  extra_opts='--debug'
+fi
+
 if [ -n "$IPADDRESS" ]; then
   if [ -z "$GATEWAY" ] && [ -x $(command -v ipcalc) ]; then
     # default to the first IP in the network
@@ -106,7 +148,7 @@ if [ -n "$IPADDRESS" ]; then
   IPADDRESS="${IPADDRESS%/*}"
   : ${NAMESERVER:=$GATEWAY}
 
-  extra_args="$extra_args netcfg/disable_dhcp=true \
+  extra_kargs="$extra_kargs netcfg/disable_dhcp=true \
   netcfg/get_ipaddress=$IPADDRESS \
   netcfg/get_netmask=$NETMASK \
   netcfg/get_gateway=$GATEWAY \
@@ -115,7 +157,7 @@ if [ -n "$IPADDRESS" ]; then
   BRIDGE=wan
 
 else
-  extra_args="$extra_args netcfg/disable_dhcp=false"
+  extra_kargs="$extra_kargs netcfg/disable_dhcp=false"
   BRIDGE=virt-br
 fi
 
@@ -123,13 +165,23 @@ if [ -z "$ARCH" ]; then
   ARCH=$(dpkg --print-architecture)
 fi
 
+if [ -z "$MAC" ]; then
+  bytes=$(dd status=noxfer if=/dev/urandom bs=3 count=1 | hexdump -v -e '/1 ":%02X"')
+  MAC=52:54:00$bytes
+fi
+
 cat >&2 <<_eof
   hostname: $HOSTNAME
       arch: $ARCH
+     suite: $SUITE
        ram: $RAM MiB
       disk: $DISK GiB
+      cpus: $CPUS
+      wipe: $WIPE
    console: $CONSOLE
+   restart: $RESTART
 net bridge: $BRIDGE
+macaddress: $MAC
 _eof
 if [ -n "$IPADDRESS" ]; then
   cat >&2 <<_eof
@@ -146,27 +198,38 @@ fi
 
 echo >&2
 
-set -v
 virsh --connect=$QEMU_URI vol-create-as $STORAGE_POOL virt-$HOSTNAME ${DISK}G
+if [ $WIPE = 1 ]; then
+  echo >&2 "Wiping disk…"
+  virsh --connect=$QEMU_URI vol-wipe --pool $STORAGE_POOL --algorithm zero virt-$HOSTNAME
+fi
 
-[ $DEBUG = 1 ] && DEBUGFLAG=--debug
+if [ $DEBUG = 1 ]; then
+  DEBUGFLAG=--debug
+  extra_args="$extra_args DEBCONF_DEBUG=5"
+fi
 
 virt-install --connect=$QEMU_URI \
   ${DEBUGFLAG:-} \
   -n $HOSTNAME \
+  --vcpus=$CPUS \
   -r $RAM \
   --disk vol=$STORAGE_POOL/virt-$HOSTNAME \
-  -w bridge=$BRIDGE \
+  --network bridge=$BRIDGE,mac=$MAC \
   --graphics=vnc \
   --serial=pty \
   --watchdog i6300esb,action=reset \
-  --os-variant=debian$SUITE \
-  -l $BASEDIR/installer-amd64 \
+  --os-variant=debianwheezy \
   --initrd-inject=$BASEDIR/preseed/$SUITE/preseed.cfg \
   --initrd-inject=$tmpdir/commands.tar \
-  --noautoconsole --autostart \
-  --extra-args="$extra_args" \
+  --extra-args="$extra_kargs" \
+  --prompt --noautoconsole --autostart $extra_opts \
+  -l $BASEDIR/installer-amd64/$SUITE \
   "$@"
 
 virsh --connect=$QEMU_URI console $HOSTNAME
-virsh --connect=$QEMU_URI "start $HOSTNAME; console $HOSTNAME"
+
+if [ $RESTART = 1 ]; then
+  sleep 5
+  virsh --connect=$QEMU_URI "start $HOSTNAME; console $HOSTNAME"
+fi