KVM SR: add promise to look for disk image non-corruption.

software/kvm/common.cfg

@@ -87,7 +87,7 @@ mode = 0644
 [template-kvm]
 recipe = slapos.recipe.template
 url = ${:_profile_base_location_}/instance-kvm.cfg.in
-md5sum = 9d1764289f2e705dc8209b99cfcaab46
+md5sum = c06bb498593aabc9c76eb7dc892da15a 
 output = ${buildout:directory}/template-kvm.cfg
 mode = 0644
 
@@ -125,7 +125,7 @@ mode = 0755
 [template-kvm-export]
 recipe = slapos.recipe.template
 url = ${:_profile_base_location_}/instance-kvm-export.cfg.in
-md5sum = 64a1a505aff9fde52afac46240811047
+md5sum = 2f5fdf1e88e6e3454f877b80074bed05 
 output = ${buildout:directory}/template-kvm-export.cfg
 mode = 0644
 

software/kvm/instance-kvm-export.cfg.in

@@ -7,7 +7,8 @@ parts +=
 
   certificate-authority
   publish-connection-information
-  kvm-promise
+  kvm-vnc-promise
+  kvm-disk-image-corruption-promise
   websockify-sighandler
   novnc-promise
   cron

software/kvm/instance-kvm.cfg.in

@@ -7,7 +7,8 @@
 parts =
   certificate-authority
   publish-connection-information
-  kvm-promise
+  kvm-vnc-promise
+  kvm-disk-image-corruption-promise
   websockify-sighandler
   novnc-promise
 #  kvm-monitor
@@ -96,12 +97,20 @@ qemu-img-path = ${kvm:location}/bin/qemu-img
 6tunnel-path = ${6tunnel:location}/bin/6tunnel
 
 
-[kvm-promise]
+[kvm-vnc-promise]
 recipe = slapos.cookbook:check_port_listening
 path = $${directory:promises}/vnc_promise
 hostname = $${kvm-instance:vnc-ip}
 port = $${kvm-instance:vnc-port}
 
+[kvm-disk-image-corruption-promise]
+# Check that disk image is not corrupted
+recipe = collective.recipe.template
+input = inline:#!/bin/sh
+  $${kvm-instance:qemu-img-path} check $${kvm-instance:disk-path}
+output = $${directory:promises}/kvm-disk-image-corruption
+mode = 700
+
 
 [novnc-instance]
 recipe = slapos.cookbook:novnc