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07f1925784a07278c51e3e328e8941f238e4acd1
[code/vinst.git] / vinst
1 #!/bin/sh
2
3 set -e
4
5 # defaults
6 RAM=512
7 DISK=20
8 CPUS=1
9 STORAGE_POOL=default
10 QEMU_URI=qemu:///system
11 SUITE=wheezy
12 CONSOLE='console=tty0 console=ttyS0,115200n8'
13 DEBUG=0
14 WIPE=0
15 RESTART=0
16
17 while [ -n "$1" ]; do
18   case "$1" in
19     (--debug)
20       DEBUG=1
21       ;;
22     (-S|--suite)
23       shift
24       if [ -z "$1" ]; then
25         echo >&2 'E: --suite/-S needs suite argument'
26         exit 1
27       fi
28       SUITE="$1"
29       ;;
30     (-n|--name)
31       shift
32       if [ -z "$1" ]; then
33         echo >&2 'E: --name/-n needs hostname argument'
34         exit 1
35       fi
36       HOSTNAME="$1"
37       ;;
38     (-i|--ipaddress)
39       shift
40       if [ -z "$1" ]; then
41         echo >&2 'E: --ipaddress/-i needs IP address/netmask'
42         exit 1
43       fi
44       case "$1" in
45         (*/*) :;;
46         (*)
47           echo >&2 'E: missing netmask'
48           exit 1
49           ;;
50       esac
51       IPADDRESS="$1"
52       ;;
53     (-d|--dns)
54       shift
55       if [ -z "$1" ]; then
56         echo >&2 'E: --dns/-d needs IP address'
57         exit 1
58       fi
59       NAMESERVER="$1"
60       ;;
61     (-g|--gateway)
62       shift
63       if [ -z "$1" ]; then
64         echo >&2 'E: --gateway/-g needs IP address'
65         exit 1
66       fi
67       GATEWAY="$1"
68       ;;
69     (-r|--ram)
70       shift
71       if [ -z "$1" ]; then
72         echo >&2 'E: --ram/-r needs number (megabytes)'
73         exit 1
74       fi
75       RAM="$1"
76       ;;
77     (-s|--size)
78       shift
79       if [ -z "$1" ]; then
80         echo >&2 'E: --size/-s needs size argument'
81         exit 1
82       fi
83       DISK="$1"
84       ;;
85     (-a|--arch)
86       shift
87       if [ -z "$1" ]; then
88         echo >&2 'E: --arch/-a needs arch argument'
89         exit 1
90       fi
91       ARCH="$1"
92       ;;
93     (-m|--mac)
94       shift
95       if [ -z "$1" ]; then
96         echo >&2 'E: --mac/-m needs mac address argument'
97         exit 1
98       fi
99       MAC="$1"
100       ;;
101     (-c|--cpus)
102       shift
103       if [ -z "$1" ]; then
104         echo >&2 'E: --cpus/-c needs integer argument'
105         exit 1
106       fi
107       CPUS="$1"
108       ;;
109     (--debug)
110       DEBUG=1
111       set -vx
112       ;;
113     (--wipe)
114       WIPE=1
115       ;;
116     (--restart)
117       RESTART=1
118       ;;
119   esac
120   shift
121 done
122
123 if [ -z "${HOSTNAME:-}" ]; then
124   echo >&2 'E: hostname is required'
125   exit 2
126 fi
127
128 BASEDIR=$(cd ${0%/*}; pwd)
129
130 tmpdir=$(mktemp -d)
131 tar -C $BASEDIR/preseed/$SUITE -cf $tmpdir/commands.tar commands
132
133 extra_kargs="auto $CONSOLE \
134 hostname=${HOSTNAME%%.*} \
135 domain=${HOSTNAME#*.}"
136
137 extra_opts=
138 if [ -n "$DEBUG" ]; then
139   extra_opts='--debug'
140 fi
141
142 if [ -n "$IPADDRESS" ]; then
143   if [ -z "$GATEWAY" ] && [ -x $(command -v ipcalc) ]; then
144     # default to the first IP in the network
145     GATEWAY=$(ipcalc $IPADDRESS | grep HostMin | awk '{print $2}')
146   fi
147   NETMASK="${IPADDRESS#*/}"
148   IPADDRESS="${IPADDRESS%/*}"
149   : ${NAMESERVER:=$GATEWAY}
150
151   extra_kargs="$extra_kargs netcfg/disable_dhcp=true \
152   netcfg/get_ipaddress=$IPADDRESS \
153   netcfg/get_netmask=$NETMASK \
154   netcfg/get_gateway=$GATEWAY \
155   netcfg/get_nameservers=$NAMESERVER"
156
157   BRIDGE=wan
158
159 else
160   extra_kargs="$extra_kargs netcfg/disable_dhcp=false"
161   BRIDGE=virt-br
162 fi
163
164 if [ -z "$ARCH" ]; then
165   ARCH=$(dpkg --print-architecture)
166 fi
167
168 if [ -z "$MAC" ]; then
169   bytes=$(dd status=noxfer if=/dev/urandom bs=3 count=1 | hexdump -v -e '/1 ":%02X"')
170   MAC=52:54:00$bytes
171 fi
172
173 cat >&2 <<_eof
174   hostname: $HOSTNAME
175       arch: $ARCH
176      suite: $SUITE
177        ram: $RAM MiB
178       disk: $DISK GiB
179       cpus: $CPUS
180       wipe: $WIPE
181    console: $CONSOLE
182    restart: $RESTART
183 net bridge: $BRIDGE
184 macaddress: $MAC
185 _eof
186 if [ -n "$IPADDRESS" ]; then
187   cat >&2 <<_eof
188  ipaddress: $IPADDRESS
189    netmask: $NETMASK
190    gateway: $GATEWAY
191 nameserver: $NAMESERVER
192 _eof
193 else
194   cat >&2 <<_eof
195       dhcp: true
196 _eof
197 fi
198
199 echo >&2
200
201 virsh --connect=$QEMU_URI vol-create-as $STORAGE_POOL virt-$HOSTNAME ${DISK}G
202 if [ $WIPE = 1 ]; then
203   echo >&2 "Wiping disk…"
204   virsh --connect=$QEMU_URI vol-wipe --pool $STORAGE_POOL --algorithm zero virt-$HOSTNAME
205 fi
206
207 if [ $DEBUG = 1 ]; then
208   DEBUGFLAG=--debug
209   extra_args="$extra_args DEBCONF_DEBUG=5"
210 fi
211
212 virt-install --connect=$QEMU_URI \
213   ${DEBUGFLAG:-} \
214   -n $HOSTNAME \
215   --vcpus=$CPUS \
216   -r $RAM \
217   --disk vol=$STORAGE_POOL/virt-$HOSTNAME \
218   --network bridge=$BRIDGE,mac=$MAC \
219   --graphics=vnc \
220   --serial=pty \
221   --watchdog i6300esb,action=reset \
222   --os-variant=debianwheezy \
223   --initrd-inject=$BASEDIR/preseed/$SUITE/preseed.cfg \
224   --initrd-inject=$tmpdir/commands.tar \
225   --extra-args="$extra_kargs" \
226   --prompt --noautoconsole --autostart $extra_opts \
227   -l $BASEDIR/installer-amd64/$SUITE \
228   "$@"
229
230 virsh --connect=$QEMU_URI console $HOSTNAME
231
232 if [ $RESTART = 1 ]; then
233   sleep 5
234   virsh --connect=$QEMU_URI "start $HOSTNAME; console $HOSTNAME"
235 fi