allow host=target_hostname script to execute single script on different host

git-svn-id: svn://svn.rot13.org/sysadmin-cookbook@307 191e9f34-6774-4a6d-acfc-7664dacd4a2a

diff --git a/recepies/ganeti/migrate-lxc/0-host.sh b/recepies/ganeti/migrate-lxc/0-host.sh
index 7132203..8ea2745 100644 (file)
--- a/recepies/ganeti/migrate-lxc/0-host.sh
+++ b/recepies/ganeti/migrate-lxc/0-host.sh
@@ -1,5 +1,5 @@
 export host_fqdn=rt.knjiznica.ffzg.hr
-export host=`echo $host_fqdn | cut -d. -f1`
+test -z "$host" && export host=`echo $host_fqdn | cut -d. -f1`
 test -d $host || mkdir $host
 
 ssh_host() {