release/tools/vmimage.subr

   1 #!/bin/sh
   2 #
   3 # $FreeBSD$
   4 #
   5 #
   6 # Common functions for virtual machine image build scripts.
   7 #
   8
   9 export PATH="/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin"
  10 trap "cleanup" INT QUIT TRAP ABRT TERM
  11
  12 write_partition_layout() {
  13
  14         case "${TARGET}:${TARGET_ARCH}" in
  15                 amd64:amd64 | i386:i386)
  16                         mkimg -s gpt -b /boot/pmbr \
  17                                 -p freebsd-boot/bootfs:=/boot/gptboot \
  18                                 -p freebsd-swap/swapfs::1G \
  19                                 -p freebsd-ufs/rootfs:=${VMBASE} \
  20                                 -o ${VMIMAGE}
  21                         ;;
  22                 powerpc:powerpc*)
  23                         mkimg -s apm \
  24                                 -p freebsd-boot/bootfs:=/boot/boot1.hfs \
  25                                 -p freebsd-swap/swapfs::1G \
  26                                 -p freebsd-ufs/rootfs:=${VMBASE} \
  27                                 -o ${VMIMAGE}
  28                         ;;
  29                 *)
  30                         # ENOTSUPP
  31                         return 1
  32                         ;;
  33         esac
  34
  35         return 0
  36 }
  37
  38 err() {
  39         printf "${@}\n"
  40         cleanup
  41         return 1
  42 }
  43
  44 cleanup() {
  45         if [ ! -z "${mddev}" ]; then
  46                 mdconfig -d -u ${mddev}
  47         fi
  48         umount ${DESTDIR}/dev
  49         umount ${DESTDIR}
  50
  51         return 0
  52 }
  53
  54 vm_create_base() {
  55         # Creates the UFS root filesystem for the virtual machine disk,
  56         # written to the formatted disk image with mkimg(1).
  57
  58         mkdir -p ${DESTDIR}
  59         truncate -s ${VMSIZE} ${VMBASE}
  60         mddev=$(mdconfig -f ${VMBASE})
  61         newfs -j /dev/${mddev}
  62         mount /dev/${mddev} ${DESTDIR}
  63
  64         return 0
  65 }
  66
  67 vm_install_base() {
  68         # Installs the FreeBSD userland/kernel to the virtual machine disk.
  69
  70         cd ${WORLDDIR} && \
  71                 make DESTDIR=${DESTDIR} \
  72                 installworld installkernel distribution || \
  73                 err "\n\nCannot install the base system to ${DESTDIR}."
  74
  75         echo '# Custom /etc/fstab for FreeBSD VM images' \
  76                 > ${DESTDIR}/etc/fstab
  77         echo '/dev/gpt/rootfs   /       ufs     rw      1       1' \
  78                 >> ${DESTDIR}/etc/fstab
  79         echo '/dev/gpt/swapfs  none    swap    sw      0       0' \
  80                 >> ${DESTDIR}/etc/fstab
  81
  82         mkdir -p ${DESTDIR}/dev
  83         mount -t devfs devfs ${DESTDIR}/dev
  84         chroot ${DESTDIR} /usr/bin/newaliases
  85         chroot ${DESTDIR} /etc/rc.d/ldconfig forcestart
  86         umount ${DESTDIR}/dev
  87
  88         return 0
  89 }
  90
  91 vm_extra_install_base() {
  92         # Prototype.  When overridden, runs extra post-installworld commands
  93         # as needed, based on the target virtual machine image or cloud
  94         # provider image target.
  95
  96         return 0
  97 }
  98
  99 vm_extra_enable_services() {
 100         if [ ! -z "${VM_RC_LIST}" ]; then
 101                 for _rcvar in ${VM_RC_LIST}; do
 102                         echo ${_rcvar}_enable="YES" >> ${DESTDIR}/etc/rc.conf
 103                 done
 104         fi
 105
 106         return 0
 107 }
 108
 109 vm_extra_install_packages() {
 110         mkdir -p ${DESTDIR}/dev
 111         mount -t devfs devfs ${DESTDIR}/dev
 112         chroot ${DESTDIR} env ASSUME_ALWAYS_YES=yes \
 113                 /usr/sbin/pkg bootstrap -y
 114         if [ ! -z "${VM_EXTRA_PACKAGES}" ]; then
 115                 chroot ${DESTDIR} env ASSUME_ALWAYS_YES=yes \
 116                         /usr/sbin/pkg install -y ${VM_EXTRA_PACKAGES}
 117         fi
 118         umount ${DESTDIR}/dev
 119
 120         return 0
 121 }
 122
 123 vm_extra_install_ports() {
 124         # Prototype.  When overridden, installs additional ports within the
 125         # virtual machine environment.
 126
 127         return 0
 128 }
 129
 130 vm_extra_pre_umount() {
 131         # Prototype.  When overridden, installs additional ports within the
 132         # virtual machine environment.
 133
 134         return 0
 135 }
 136
 137 vm_umount_base() {
 138         i=0
 139         sync
 140         while ! umount ${DESTDIR}/dev ${DESTDIR}; do
 141                 i=$(( $i + 1 ))
 142                 if [ $i -ge 10 ]; then
 143                         # This should never happen.  But, it has happened.
 144                         msg="Cannot umount(8) ${DESTDIR}\n"
 145                         msg="${msg}Something has gone horribly wrong."
 146                         err "${msg}"
 147                 fi
 148                 sleep 1
 149         done
 150
 151         return 0
 152 }
 153
 154 vm_create_disk() {
 155         echo "Creating image...  Please wait."
 156         echo
 157
 158         write_partition_layout || return 1
 159
 160         return 0
 161 }
 162
 163 vm_extra_create_disk() {
 164
 165         return 0
 166 }
 167