failure to find guest ip is not fatal

[build.git] / lbuild-initvm.sh

diff --git a/lbuild-initvm.sh b/lbuild-initvm.sh
index 14cb325..59ba47e 100755 (executable)
--- a/lbuild-initvm.sh
+++ b/lbuild-initvm.sh
@@ -873,12 +873,19 @@ EOF
 # however this was too fragile, would not work for fedora14 containers
 # WARNING: this code is duplicated in lbuild-nightly.sh
 function guest_ipv4() {
-    local lxc=$1; shift
-
-    local mac=$(virsh -c lxc:/// domiflist $lxc | egrep 'network|bridge' | awk '{print $5;}')
-    # sanity check
-    [ -z "$mac" ] && return 0
-    arp -en | grep "$mac" | awk '{print $1;}'
+    lxc=$1; shift
+
+    mac=$(virsh -c lxc:/// domiflist $lxc | grep -E 'network|bridge' | awk '{print $5;}')
+    [ -z "$mac" ] && { echo 1>&2 guest_ipv4 cannot find mac; return 1; }
+    ip=$(arp -en | grep "$mac" | awk '{print $1;}')
+    # if not known: run a ping and try again
+    if [ -z $ip ]; then
+           ping -c1 -w1 -W1 $lxc >& /dev/null
+           ping -c1 -w1 -W1 $lxc.pl.sophia.inria.fr >& /dev/null
+           ip=$(arp -en | grep "$mac" | awk '{print $1;}')
+    fi
+    [ -z "$ip" ] && { echo 1>&2 guest_ipv4 cannot find ip; return 1; }
+    echo $ip
 }
 
 function wait_for_ssh () {
@@ -898,7 +905,7 @@ function wait_for_ssh () {
     local counter=1
     while [ "$current_time" -lt "$stop_time" ] ; do
         echo "$counter-th attempt to reach sshd in container $lxc ..."
-        [ -z "$guest_ip" ] && guest_ip=$(guest_ipv4 $lxc)
+        [ -z "$guest_ip" ] && guest_ip=$(guest_ipv4 $lxc) || :
         [ -n "$guest_ip" ] && ssh -o "StrictHostKeyChecking no" $guest_ip arch && {
             success=true; echo "SSHD in container $lxc is UP on IP $guest_ip"; break ; } || :
         # some of our boxes have gone through a long upgrade historically, and