Do not fetch hostname from rDNS

[code/vinst.git] / vinst

diff --git a/vinst b/vinst
index 9a8eb90769e8dc72a1286b87d9a3248313b8b1f4..9775cbb5711811c2723814ab9c3346bd294b02c2 100755 (executable)
--- a/vinst
+++ b/vinst
@@ -5,13 +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
@@ -35,6 +50,22 @@ while [ -n "$1" ]; do
       esac
       IPADDRESS="$1"
       ;;
+    (-d|--dns)
+      shift
+      if [ -z "$1" ]; then
+        echo >&2 'E: --dns/-d needs IP address'
+        exit 1
+      fi
+      NAMESERVER="$1"
+      ;;
+    (-g|--gateway)
+      shift
+      if [ -z "$1" ]; then
+        echo >&2 'E: --gateway/-g needs IP address'
+        exit 1
+      fi
+      GATEWAY="$1"
+      ;;
     (-r|--ram)
       shift
       if [ -z "$1" ]; then
@@ -51,6 +82,40 @@ while [ -n "$1" ]; do
       fi
       DISK="$1"
       ;;
+    (-a|--arch)
+      shift
+      if [ -z "$1" ]; then
+        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="$1"
+      ;;
+    (--debug)
+      DEBUG=1
+      set -vx
+      ;;
+    (--wipe)
+      WIPE=1
+      ;;
+    (--restart)
+      RESTART=1
+      ;;
   esac
   shift
 done
@@ -65,12 +130,17 @@ BASEDIR=$(cd ${0%/*}; pwd)
 tmpdir=$(mktemp -d)
 tar -C $BASEDIR/preseed/$SUITE -cf $tmpdir/commands.tar commands
 
-extra_args="auto $CONSOLE \
-hostname=${HOSTNAME%%.*} \
-domain=${HOSTNAME#*.}"
+extra_kargs="auto $CONSOLE \
+netcfg/hostname=${HOSTNAME%%.*} \
+netcfg/domain=${HOSTNAME#*.}"
+
+extra_opts=
+if [ -n "$DEBUG" ]; then
+  extra_opts='--debug'
+fi
 
 if [ -n "$IPADDRESS" ]; then
-  if [ -z "$GATEWAY" ]; then
+  if [ -z "$GATEWAY" ] && [ -x $(command -v ipcalc) ]; then
     # default to the first IP in the network
     GATEWAY=$(ipcalc $IPADDRESS | grep HostMin | awk '{print $2}')
   fi
@@ -78,21 +148,40 @@ if [ -n "$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=$GATEWAY \
   netcfg/get_nameservers=$NAMESERVER"
 
+  BRIDGE=wan
+
 else
-  extra_args="$extra_args netcfg/disable_dhcp=false"
+  extra_kargs="$extra_kargs netcfg/disable_dhcp=false"
+  BRIDGE=virt-br
+fi
+
+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
@@ -107,20 +196,40 @@ else
 _eof
 fi
 
-exit 0
+echo >&2
+
+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
+
+if [ $DEBUG = 1 ]; then
+  DEBUGFLAG=--debug
+  extra_args="$extra_args DEBCONF_DEBUG=5"
+fi
 
-exec virt-install --connect=$QEMU_URI \
+virt-install --connect=$QEMU_URI \
+  ${DEBUGFLAG:-} \
   -n $HOSTNAME \
+  --vcpus=$CPUS \
   -r $RAM \
-  --disk pool=default,size=$SIZE \
-  -w bridge=virt-br \
+  --disk vol=$STORAGE_POOL/virt-$HOSTNAME \
+  --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 \
-  --extra-args="$extra_args" \
-  --autostart \
+  --extra-args="$extra_kargs" \
+  --prompt --noautoconsole --autostart $extra_opts \
+  -l $BASEDIR/installer-amd64/$SUITE \
   "$@"
+
+virsh --connect=$QEMU_URI console $HOSTNAME
+
+if [ $RESTART = 1 ]; then
+  sleep 5
+  virsh --connect=$QEMU_URI "start $HOSTNAME; console $HOSTNAME"
+fi