code.grnet.gr Git - snf-image/blob - snf-image-host/xen-common.sh

   1 get_img_dev() {
   2         echo /dev/xvdb
   3 }
   4
   5 launch_helper() {
   6         local name helperid rc blockdev floppy
   7
   8         blockdev="$1"
   9         floppy="$2"
  10
  11         name=$(uuid)
  12
  13         report_info "Starting customization VM..."
  14         echo "$($DATE +%Y:%m:%d-%H:%M:%S.%N) VM START" >&2
  15
  16     xm create /dev/null \
  17       kernel="$HELPER_DIR/kernel-xen" ramdisk="$HELPER_DIR/initrd-xen" \
  18           root="/dev/xvda1" memory="256" boot="c" vcpus=1 name="$name" \
  19       extra="console=hvc0 hypervisor=$HYPERVISOR snf_image_activate_helper \
  20       rules_dev=/dev/xvdc quiet ro boot=local init=/usr/bin/snf-image-helper" \
  21       disk="file:$HELPER_DIR/image,xvda,r" disk="phy:$blockdev,xvdb,w" \
  22       disk="file:$floppy,xvdc,r" vif="mac=aa:00:00:00:00:11,bridge=$XEN_BRIDGE" \
  23
  24     if ! xenstore-exists snf-image-helper; then
  25         xenstore-write snf-image-helper ""
  26                 #add_cleanup xenstore-rm snf-image-helper
  27     fi
  28
  29     helperid=$(xm domid "$name")
  30     xenstore-write snf-image-helper/${helperid} ""
  31         add_cleanup xenstore-rm snf-image-helper/${helperid}
  32     xenstore-chmod snf-image-helper/${helperid} r0 w${helperid}
  33
  34     brctl delif xenbr "vif${helperid}.0"
  35
  36     socat EXEC:"./helper-monitor.py ${MONITOR_FD}" INTERFACE:vif${helperid}.0 &
  37
  38         set +e
  39
  40     $TIMEOUT -k $HELPER_HARD_TIMEOUT $HELPER_SOFT_TIMEOUT \
  41       socat EXEC:"xm console $name",pty STDOUT | sed -u 's|^|HELPER: |g'
  42
  43         rc=$?
  44         set -e
  45
  46     echo "$($DATE +%Y:%m:%d-%H:%M:%S.%N) VM STOP" >&2
  47     if [ $rc -ne 0 ]; then
  48         if [ $rc -eq 124 ];  then
  49             log_error "Customization VM was terminated. Did not finish on time."
  50             report_error "Image customization failed. Did not finish on time."
  51         elif [ $rc -eq 137 ]; then # (128 + SIGKILL)
  52             log_error "Customization VM was killed. Did not finish on time."
  53             report_error "Image customization failed. Did not finish on time."
  54         elif [ $rc -eq 141 ]; then # (128 + SIGPIPE)
  55             log_error "Customization VM was terminated by a SIGPIPE."
  56             log_error "Maybe progress monitor has died unexpectedly."
  57         elif [ $rc -eq 125 ]; then
  58             log_error "Internal Error. Image customization could not start."
  59             log_error "timeout did not manage to run."
  60         else
  61             log_error "Customization VM died unexpectedly (return code $rc)."
  62         fi
  63         exit 1
  64     else
  65         report_info "Customization VM exited normally."
  66     fi
  67
  68     report_info "Checking customization status..."
  69     result=$(xenstore-read snf-image-helper/$helperid)
  70     report_info "Customization status is: $result"
  71
  72     if [ "x$result" != "xSUCCESS" ]; then
  73         log_error "Image customization failed."
  74         report_error "Image customization failed."
  75         exit 1
  76     fi
  77 }
  78