more consistently rename plc_spec['hostname'] into plc_spec['host_box']
[tests.git] / system / TestPlc.py
index 487884f..85750c9 100644 (file)
@@ -1,4 +1,6 @@
-# $Id$
+# Thierry Parmentelat <thierry.parmentelat@inria.fr>
+# Copyright (C) 2010 INRIA 
+#
 import os, os.path
 import datetime
 import time
@@ -14,7 +16,7 @@ from TestUser import TestUser
 from TestKey import TestKey
 from TestSlice import TestSlice
 from TestSliver import TestSliver
-from TestBox import TestBox
+from TestBoxQemu import TestBoxQemu
 from TestSsh import TestSsh
 from TestApiserver import TestApiserver
 from TestSliceSfa import TestSliceSfa
@@ -50,7 +52,7 @@ def node_mapper (method):
     actual.__doc__=method.__doc__
     return actual
 
-def slice_mapper_options (method):
+def slice_mapper (method):
     def actual(self):
         overall=True
         slice_method = TestSlice.__dict__[method.__name__]
@@ -64,15 +66,14 @@ def slice_mapper_options (method):
     actual.__doc__=method.__doc__
     return actual
 
-def slice_mapper_options_sfa (method):
+def slice_sfa_mapper (method):
     def actual(self):
-       test_plc=self
         overall=True
         slice_method = TestSliceSfa.__dict__[method.__name__]
-        for slice_spec in self.plc_spec['sfa']['slices_sfa']:
+        for slice_spec in self.plc_spec['sfa']['sfa_slice_specs']:
             site_spec = self.locate_site (slice_spec['sitename'])
             test_site = TestSite(self,site_spec)
-            test_slice=TestSliceSfa(test_plc,test_site,slice_spec)
+            test_slice=TestSliceSfa(self,test_site,slice_spec)
             if not slice_method(test_slice,self.options): overall=False
         return overall
     # restore the doc text
@@ -80,47 +81,71 @@ def slice_mapper_options_sfa (method):
     return actual
 
 SEP='<sep>'
+SEPSFA='<sep_sfa>'
 
 class TestPlc:
 
     default_steps = [
-        'display', 'local_pre', SEP,
-        'delete','create','install', 'configure', 'start', SEP,
-        'fetch_keys', 'store_keys', 'clear_known_hosts', SEP,
-        'initscripts', 'sites', 'nodes', 'slices', 'nodegroups', SEP,
-        'reinstall_node', 'init_node','bootcd', 'configure_qemu', 'export_qemu',
-        'kill_all_qemus', 'start_node', SEP,
-        # better use of time: do this now that the nodes are taking off
-        'plcsh_stress_test', SEP,
-        'nodes_ssh_debug', 'nodes_ssh_boot', 'check_slice', 'check_initscripts', SEP,
-       'install_sfa', 'configure_sfa', 'import_sfa', 'start_sfa', SEP,
-        'setup_sfa', 'add_sfa', 'update_sfa', SEP,
-        'view_sfa', 'check_slice_sfa', 'delete_sfa', 'stop_sfa', SEP,
-        'check_tcp',  'check_hooks',  SEP,
-        'force_gather_logs', 'force_local_post',
+        'show', SEP,
+        'vs_delete','vs_create','timestamp_vs', SEP,
+        'plc_install', 'plc_configure', 'plc_start', SEP,
+        'keys_fetch', 'keys_store', 'keys_clear_known_hosts', SEP,
+        'initscripts', 'sites', 'nodes', 'slices', 'nodegroups', 'leases', SEP,
+        'nodestate_reinstall', 'qemu_local_init','bootcd', 'qemu_local_config', SEP,
+        'qemu_export', 'qemu_kill_all', 'qemu_start', 'timestamp_qemu', SEP,
+       'sfa_install', 'sfa_configure', 'cross_sfa_configure', 'sfa_import', 'sfa_start', SEPSFA,
+        'sfi_configure@1', 'sfa_add_user@1', 'sfa_add_slice@1', 'sfa_discover@1', SEPSFA,
+        'sfa_create_slice@1', 'sfa_check_slice_plc@1', SEPSFA, 
+        'sfa_update_user@1', 'sfa_update_slice@1', 'sfa_view@1', 'sfa_utest@1',SEPSFA,
+        # we used to run plcsh_stress_test, and then ssh_node_debug and ssh_node_boot
+        # but as the stress test might take a while, we sometimes missed the debug mode..
+        'ssh_node_debug', 'plcsh_stress_test@1', SEP,
+        'ssh_node_boot', 'ssh_slice', 'check_initscripts', SEP,
+        'ssh_slice_sfa@1', 'sfa_delete_slice@1', 'sfa_delete_user@1', SEPSFA,
+        'check_tcp',  SEP,
+        'force_gather_logs', SEP,
         ]
     other_steps = [ 
-        'fresh_install', 'stop', 'vs_start', SEP,
-        'clean_initscripts', 'clean_nodegroups','clean_all_sites', SEP,
-        'clean_sites', 'clean_nodes', 'clean_slices', 'clean_keys', SEP,
+        'check_hooks',  
+        'free_all',
+        'show_boxes', 'local_list','local_rel','local_rel_plc','local_rel_qemu',SEP,
+        'plc_stop', 'vs_start', 'vs_stop', SEP,
+        'delete_initscripts', 'delete_nodegroups','delete_all_sites', SEP,
+        'delete_sites', 'delete_nodes', 'delete_slices', 'keys_clean', SEP,
+        'delete_leases', 'list_leases', SEP,
         'populate' , SEP,
-        'show_boxes', 'list_all_qemus', 'list_qemus', 'kill_qemus', SEP,
-        'db_dump' , 'db_restore', SEP,
-        'local_list','local_cleanup',SEP,
-        'standby_1 through 20',
+        'nodestate_show','nodestate_safeboot','nodestate_boot', SEP,
+        'qemu_list_all', 'qemu_list_mine', 'qemu_kill_mine', SEP,
+        'sfa_plcclean', 'sfa_dbclean', 'sfa_stop','sfa_uninstall', 'sfi_clean', SEP,
+        'plc_db_dump' , 'plc_db_restore', SEP,
+        'standby_1 through 20',SEP,
         ]
 
     @staticmethod
     def printable_steps (list):
-        return " ".join(list).replace(" "+SEP+" "," \\\n")
+        single_line=" ".join(list)+" "
+        return single_line.replace(" "+SEP+" "," \\\n").replace(" "+SEPSFA+" "," \\\n")
     @staticmethod
     def valid_step (step):
-        return step != SEP
+        return step != SEP and step != SEPSFA
+
+    # turn off the sfa-related steps when build has skipped SFA
+    # this is originally for centos5 as recent SFAs won't build on this platformb
+    @staticmethod
+    def check_whether_build_has_sfa (rpms_url):
+        # warning, we're now building 'sface' so let's be a bit more picky
+        retcod=os.system ("curl --silent %s/ | grep -q sfa-"%rpms_url)
+        # full builds are expected to return with 0 here
+        if retcod!=0:
+            # move all steps containing 'sfa' from default_steps to other_steps
+            sfa_steps= [ step for step in TestPlc.default_steps if step.find('sfa')>=0 ]
+            TestPlc.other_steps += sfa_steps
+            for step in sfa_steps: TestPlc.default_steps.remove(step)
 
     def __init__ (self,plc_spec,options):
        self.plc_spec=plc_spec
         self.options=options
-       self.test_ssh=TestSsh(self.plc_spec['hostname'],self.options.buildname)
+       self.test_ssh=TestSsh(self.plc_spec['host_box'],self.options.buildname)
         try:
             self.vserverip=plc_spec['vserverip']
             self.vservername=plc_spec['vservername']
@@ -135,7 +160,7 @@ class TestPlc:
         return "%s.%s"%(name,self.vservername)
 
     def hostname(self):
-        return self.plc_spec['hostname']
+        return self.plc_spec['host_box']
 
     def is_local (self):
         return self.test_ssh.is_local()
@@ -151,6 +176,9 @@ class TestPlc:
     def start_guest (self):
       return utils.system(self.test_ssh.actual_command(self.start_guest_in_host()))
     
+    def stop_guest (self):
+      return utils.system(self.test_ssh.actual_command(self.stop_guest_in_host()))
+    
     def run_in_guest (self,command):
         return utils.system(self.actual_command_in_guest(command))
     
@@ -161,10 +189,13 @@ class TestPlc:
     def host_to_guest(self,command):
         return "vserver %s exec %s"%(self.vservername,command)
     
-    #command gets run in the vserver
+    #start/stop the vserver
     def start_guest_in_host(self):
         return "vserver %s start"%(self.vservername)
     
+    def stop_guest_in_host(self):
+        return "vserver %s stop"%(self.vservername)
+    
     # xxx quick n dirty
     def run_in_guest_piped (self,local,remote):
         return utils.system(local+" | "+self.test_ssh.actual_command(self.host_to_guest(remote),keep_stdin=True))
@@ -261,29 +292,32 @@ class TestPlc:
                     
     # a step for checking this stuff
     def show_boxes (self):
+        'print summary of nodes location'
         for (box,nodes) in self.gather_hostBoxes().iteritems():
             print box,":"," + ".join( [ node.name() for node in nodes ] )
         return True
 
     # make this a valid step
-    def kill_all_qemus(self):
-        "all qemu boxes: kill all running qemus (even of former runs)"
+    def qemu_kill_all(self):
+        'kill all qemu instances on the qemu boxes involved by this setup'
         # this is the brute force version, kill all qemus on that host box
         for (box,nodes) in self.gather_hostBoxes().iteritems():
             # pass the first nodename, as we don't push template-qemu on testboxes
             nodedir=nodes[0].nodedir()
-            TestBox(box,self.options.buildname).kill_all_qemus(nodedir)
+            TestBoxQemu(box,self.options.buildname).qemu_kill_all(nodedir)
         return True
 
     # make this a valid step
-    def list_all_qemus(self):
+    def qemu_list_all(self):
+        'list all qemu instances on the qemu boxes involved by this setup'
         for (box,nodes) in self.gather_hostBoxes().iteritems():
             # this is the brute force version, kill all qemus on that host box
-            TestBox(box,self.options.buildname).list_all_qemus()
+            TestBoxQemu(box,self.options.buildname).qemu_list_all()
         return True
 
     # kill only the right qemus
-    def list_qemus(self):
+    def qemu_list_mine(self):
+        'list qemu instances for our nodes'
         for (box,nodes) in self.gather_hostBoxes().iteritems():
             # the fine-grain version
             for node in nodes:
@@ -291,7 +325,8 @@ class TestPlc:
         return True
 
     # kill only the right qemus
-    def kill_qemus(self):
+    def qemu_kill_mine(self):
+        'kill the qemu instances for our nodes'
         for (box,nodes) in self.gather_hostBoxes().iteritems():
             # the fine-grain version
             for node in nodes:
@@ -299,15 +334,17 @@ class TestPlc:
         return True
 
     #################### display config
-    def display (self):
+    def show (self):
         "show test configuration after localization"
         self.display_pass (1)
         self.display_pass (2)
         return True
 
     # entry point
+    always_display_keys=['PLC_WWW_HOST','nodes','sites',]
     def display_pass (self,passno):
         for (key,val) in self.plc_spec.iteritems():
+            if not self.options.verbose and key not in TestPlc.always_display_keys: continue
             if passno == 2:
                 if key == 'sites':
                     for site in val:
@@ -324,12 +361,13 @@ class TestPlc:
                     for key in val:
                         self.display_key_spec (key)
             elif passno == 1:
-                if key not in ['sites','initscripts','slices','keys']:
+                if key not in ['sites','initscripts','slices','keys', 'sfa']:
                     print '+   ',key,':',val
 
     def display_site_spec (self,site):
         print '+ ======== site',site['site_fields']['name']
         for (k,v) in site.iteritems():
+            if not self.options.verbose and k not in TestPlc.always_display_keys: continue
             if k=='nodes':
                 if v: 
                     print '+       ','nodes : ',
@@ -347,8 +385,8 @@ class TestPlc:
             elif k == 'address_fields':
                 pass
             else:
-                print '+       ',k,
-                PrettyPrinter(indent=8,depth=2).pprint(v)
+                print '+       ',
+                utils.pprint(k,v)
         
     def display_initscript_spec (self,initscript):
         print '+ ======== initscript',initscript['initscript_fields']['name']
@@ -379,10 +417,11 @@ class TestPlc:
                 print '+       ',k,v
 
     def display_node_spec (self,node):
-        print "+           node",node['name'],"host_box=",node['host_box'],
+        print "+           node=%s host_box=%s"%(node['name'],node['host_box']),
         print "hostname=",node['node_fields']['hostname'],
         print "ip=",node['interface_fields']['ip']
-    
+        if self.options.verbose:
+            utils.pprint("node details",node,depth=3)
 
     # another entry point for just showing the boxes involved
     def display_mapping (self):
@@ -392,7 +431,7 @@ class TestPlc:
     @staticmethod
     def display_mapping_plc (plc_spec):
         print '+ MyPLC',plc_spec['name']
-        print '+\tvserver address = root@%s:/vservers/%s'%(plc_spec['hostname'],plc_spec['vservername'])
+        print '+\tvserver address = root@%s:/vservers/%s'%(plc_spec['host_box'],plc_spec['vservername'])
         print '+\tIP = %s/%s'%(plc_spec['PLC_API_HOST'],plc_spec['vserverip'])
         for site_spec in plc_spec['sites']:
             for node_spec in site_spec['nodes']:
@@ -404,6 +443,12 @@ class TestPlc:
         print '+\tqemu box %s'%node_spec['host_box']
         print '+\thostname=%s'%node_spec['node_fields']['hostname']
 
+    # write a timestamp in /vservers/<>/
+    def timestamp_vs (self):
+        now=int(time.time())
+        utils.system(self.test_ssh.actual_command("mkdir -p /vservers/%s"%self.vservername))
+        return utils.system(self.test_ssh.actual_command("echo %d > /vservers/%s/timestamp"%(now,self.vservername)))==0
+        
     def local_pre (self):
         "run site-dependant pre-test script as defined in LocalTestResources"
         from LocalTestResources import local_resources
@@ -419,19 +464,33 @@ class TestPlc:
         from LocalTestResources import local_resources
         return local_resources.step_list(self)
  
-    def local_cleanup (self):
-        "run site-dependant cleanup script as defined in LocalTestResources"
+    def local_rel (self):
+        "run site-dependant release script as defined in LocalTestResources"
+        from LocalTestResources import local_resources
+        return local_resources.step_release(self)
+    def local_rel_plc (self):
+        "run site-dependant release script as defined in LocalTestResources"
+        from LocalTestResources import local_resources
+        return local_resources.step_release_plc(self)
+    def local_rel_qemu (self):
+        "run site-dependant release script as defined in LocalTestResources"
         from LocalTestResources import local_resources
-        return local_resources.step_cleanup(self)
+        return local_resources.step_release_qemu(self)
  
-    def delete(self):
+    def vs_delete(self):
         "vserver delete the test myplc"
         self.run_in_host("vserver --silent %s delete"%self.vservername)
         return True
 
     ### install
-    def create (self):
+    # historically the build was being fetched by the tests
+    # now the build pushes itself as a subdir of the tests workdir
+    # so that the tests do not have to worry about extracting the build (svn, git, or whatever)
+    def vs_create (self):
         "vserver creation (no install done)"
+        # push the local build/ dir to the testplc box 
         if self.is_local():
             # a full path for the local calls
             build_dir=os.path.dirname(sys.argv[0])
@@ -441,10 +500,9 @@ class TestPlc:
         else:
             # use a standard name - will be relative to remote buildname
             build_dir="build"
-       # run checkout in any case - would do an update if already exists
-        build_checkout = "svn checkout %s %s"%(self.options.build_url,build_dir)
-        if self.run_in_host(build_checkout) != 0:
-            return False
+            # remove for safety; do *not* mkdir first, otherwise we end up with build/build/
+            self.test_ssh.rmdir(build_dir)
+            self.test_ssh.copy(build_dir,recursive=True)
         # the repo url is taken from arch-rpms-url 
         # with the last step (i386) removed
         repo_url = self.options.arch_rpms_url
@@ -462,40 +520,47 @@ class TestPlc:
             vserver_hostname=socket.gethostbyaddr(self.vserverip)[0]
             vserver_options += " --hostname %s"%vserver_hostname
         except:
-            pass
+            print "Cannot reverse lookup %s"%self.vserverip
+            print "This is considered fatal, as this might pollute the test results"
+            return False
         create_vserver="%(build_dir)s/%(script)s %(test_env_options)s %(vserver_name)s %(repo_url)s -- %(vserver_options)s"%locals()
         return self.run_in_host(create_vserver) == 0
 
     ### install_rpm 
-    def install(self):
+    def plc_install(self):
         "yum install myplc, noderepo, and the plain bootstrapfs"
 
-        # workaround for getting pgsql5.2 on centos5
+        # workaround for getting pgsql8.2 on centos5
         if self.options.fcdistro == "centos5":
-            self.run_in_guest("rpm -Uvh http://yum.pgsqlrpms.org/8.2/pgdg-centos-8.2-4.noarch.rpm")
             self.run_in_guest("rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-3.noarch.rpm")
 
+        # compute nodefamily
         if self.options.personality == "linux32":
             arch = "i386"
         elif self.options.personality == "linux64":
             arch = "x86_64"
         else:
             raise Exception, "Unsupported personality %r"%self.options.personality
-        
         nodefamily="%s-%s-%s"%(self.options.pldistro,self.options.fcdistro,arch)
-        return \
-            self.run_in_guest("yum -y install myplc")==0 and \
-            self.run_in_guest("yum -y install noderepo-%s"%nodefamily)==0 and \
-            self.run_in_guest("yum -y install bootstrapfs-%s-plain"%nodefamily)==0 
+
+        pkgs_list=[]
+        pkgs_list.append ("slicerepo-%s"%nodefamily)
+        pkgs_list.append ("myplc")
+        pkgs_list.append ("noderepo-%s"%nodefamily)
+        pkgs_list.append ("bootstrapfs-%s-plain"%nodefamily)
+        pkgs_string=" ".join(pkgs_list)
+        self.run_in_guest("yum -y install %s"%pkgs_string)
+        return self.run_in_guest("rpm -q %s"%pkgs_string)==0
 
     ### 
-    def configure(self):
+    def plc_configure(self):
         "run plc-config-tty"
         tmpname='%s.plc-config-tty'%(self.name())
         fileconf=open(tmpname,'w')
         for var in [ 'PLC_NAME',
-                     'PLC_ROOT_PASSWORD',
                      'PLC_ROOT_USER',
+                     'PLC_ROOT_PASSWORD',
+                     'PLC_SLICE_PREFIX',
                      'PLC_MAIL_ENABLED',
                      'PLC_MAIL_SUPPORT_ADDRESS',
                      'PLC_DB_HOST',
@@ -505,7 +570,11 @@ class TestPlc:
                      'PLC_WWW_HOST',
                      'PLC_BOOT_HOST',
                      'PLC_NET_DNS1',
-                     'PLC_NET_DNS2']:
+                     'PLC_NET_DNS2',
+                     'PLC_RESERVATION_GRANULARITY',
+                     'PLC_OMF_ENABLED',
+                     'PLC_OMF_XMPP_SERVER',
+                     ]:
             fileconf.write ('e %s\n%s\n'%(var,self.plc_spec[var]))
         fileconf.write('w\n')
         fileconf.write('q\n')
@@ -515,33 +584,41 @@ class TestPlc:
         utils.system('rm %s'%tmpname)
         return True
 
-    def start(self):
+    def plc_start(self):
         "service plc start"
         self.run_in_guest('service plc start')
         return True
 
-    def stop(self):
+    def plc_stop(self):
         "service plc stop"
         self.run_in_guest('service plc stop')
         return True
         
     def vs_start (self):
+        "start the PLC vserver"
         self.start_guest()
         return True
 
+    def vs_stop (self):
+        "stop the PLC vserver"
+        self.stop_guest()
+        return True
+
     # stores the keys from the config for further use
-    def store_keys(self):
+    def keys_store(self):
         "stores test users ssh keys in keys/"
         for key_spec in self.plc_spec['keys']:
                TestKey(self,key_spec).store_key()
         return True
 
-    def clean_keys(self):
-        utils.system("rm -rf %s/keys/"%os.path(sys.argv[0]))
+    def keys_clean(self):
+        "removes keys cached in keys/"
+        utils.system("rm -rf ./keys")
+        return True
 
     # fetches the ssh keys in the plc's /etc/planetlab and stores them in keys/
     # for later direct access to the nodes
-    def fetch_keys(self):
+    def keys_fetch(self):
         "gets ssh keys in /etc/planetlab/ and stores them locally in keys/"
         dir="./keys"
         if not os.path.isdir(dir):
@@ -559,7 +636,7 @@ class TestPlc:
         "create sites with PLCAPI"
         return self.do_sites()
     
-    def clean_sites (self):
+    def delete_sites (self):
         "delete sites with PLCAPI"
         return self.do_sites(action="delete")
     
@@ -578,17 +655,19 @@ class TestPlc:
                 test_site.create_users()
         return True
 
-    def clean_all_sites (self):
+    def delete_all_sites (self):
+        "Delete all sites in PLC, and related objects"
         print 'auth_root',self.auth_root()
         site_ids = [s['site_id'] for s in self.apiserver.GetSites(self.auth_root(), {}, ['site_id'])]
         for site_id in site_ids:
             print 'Deleting site_id',site_id
             self.apiserver.DeleteSite(self.auth_root(),site_id)
+        return True
 
     def nodes (self):
         "create nodes with PLCAPI"
         return self.do_nodes()
-    def clean_nodes (self):
+    def delete_nodes (self):
         "delete nodes with PLCAPI"
         return self.do_nodes(action="delete")
 
@@ -612,10 +691,72 @@ class TestPlc:
     def nodegroups (self):
         "create nodegroups with PLCAPI"
         return self.do_nodegroups("add")
-    def clean_nodegroups (self):
+    def delete_nodegroups (self):
         "delete nodegroups with PLCAPI"
         return self.do_nodegroups("delete")
 
+    YEAR = 365*24*3600
+    @staticmethod
+    def translate_timestamp (start,grain,timestamp):
+        if timestamp < TestPlc.YEAR:    return start+timestamp*grain
+        else:                           return timestamp
+
+    @staticmethod
+    def timestamp_printable (timestamp):
+        return time.strftime('%m-%d %H:%M:%S UTC',time.gmtime(timestamp))
+
+    def leases(self):
+        "create leases (on reservable nodes only, use e.g. run -c default -c resa)"
+        now=int(time.time())
+        grain=self.apiserver.GetLeaseGranularity(self.auth_root())
+        print 'API answered grain=',grain
+        start=(now/grain)*grain
+        start += grain
+        # find out all nodes that are reservable
+        nodes=self.all_reservable_nodenames()
+        if not nodes: 
+            utils.header ("No reservable node found - proceeding without leases")
+            return True
+        ok=True
+        # attach them to the leases as specified in plc_specs
+        # this is where the 'leases' field gets interpreted as relative of absolute
+        for lease_spec in self.plc_spec['leases']:
+            # skip the ones that come with a null slice id
+            if not lease_spec['slice']: continue
+            lease_spec['t_from']=TestPlc.translate_timestamp(start,grain,lease_spec['t_from'])
+            lease_spec['t_until']=TestPlc.translate_timestamp(start,grain,lease_spec['t_until'])
+            lease_addition=self.apiserver.AddLeases(self.auth_root(),nodes,
+                                                    lease_spec['slice'],lease_spec['t_from'],lease_spec['t_until'])
+            if lease_addition['errors']:
+                utils.header("Cannot create leases, %s"%lease_addition['errors'])
+                ok=False
+            else:
+                utils.header('Leases on nodes %r for %s from %d (%s) until %d (%s)'%\
+                              (nodes,lease_spec['slice'],
+                               lease_spec['t_from'],TestPlc.timestamp_printable(lease_spec['t_from']),
+                               lease_spec['t_until'],TestPlc.timestamp_printable(lease_spec['t_until'])))
+                
+        return ok
+
+    def delete_leases (self):
+        "remove all leases in the myplc side"
+        lease_ids= [ l['lease_id'] for l in self.apiserver.GetLeases(self.auth_root())]
+        utils.header("Cleaning leases %r"%lease_ids)
+        self.apiserver.DeleteLeases(self.auth_root(),lease_ids)
+        return True
+
+    def list_leases (self):
+        "list all leases known to the myplc"
+        leases = self.apiserver.GetLeases(self.auth_root())
+        now=int(time.time())
+        for l in leases:
+            current=l['t_until']>=now
+            if self.options.verbose or current:
+                utils.header("%s %s from %s until %s"%(l['hostname'],l['name'],
+                                                       TestPlc.timestamp_printable(l['t_from']), 
+                                                       TestPlc.timestamp_printable(l['t_until'])))
+        return True
+
     # create nodegroups if needed, and populate
     def do_nodegroups (self, action="add"):
         # 1st pass to scan contents
@@ -645,8 +786,7 @@ class TestPlc:
                     tag_type_id = self.apiserver.AddTagType(auth,
                                                             {'tagname':nodegroupname,
                                                              'description': 'for nodegroup %s'%nodegroupname,
-                                                             'category':'test',
-                                                             'min_role_id':10})
+                                                             'category':'test'})
                 print 'located tag (type)',nodegroupname,'as',tag_type_id
                 # create nodegroup
                 nodegroups = self.apiserver.GetNodeGroups (auth, {'groupname':nodegroupname})
@@ -687,10 +827,18 @@ class TestPlc:
         node_infos = []
         for site_spec in self.plc_spec['sites']:
             node_infos += [ (node_spec['node_fields']['hostname'],node_spec['host_box']) \
-                           for node_spec in site_spec['nodes'] ]
+                                for node_spec in site_spec['nodes'] ]
         return node_infos
     
     def all_nodenames (self): return [ x[0] for x in self.all_node_infos() ]
+    def all_reservable_nodenames (self): 
+        res=[]
+        for site_spec in self.plc_spec['sites']:
+            for node_spec in site_spec['nodes']:
+                node_fields=node_spec['node_fields']
+                if 'node_type' in node_fields and node_fields['node_type']=='reservable':
+                    res.append(node_fields['hostname'])
+        return res
 
     # silent_minutes : during the first <silent_minutes> minutes nothing gets printed
     def nodes_check_boot_state (self, target_boot_state, timeout_minutes, silent_minutes,period=15):
@@ -786,16 +934,16 @@ class TestPlc:
         # only useful in empty plcs
         return True
         
-    def nodes_ssh_debug(self):
+    def ssh_node_debug(self):
         "Tries to ssh into nodes in debug mode with the debug ssh key"
-        return self.check_nodes_ssh(debug=True,timeout_minutes=30,silent_minutes=5)
+        return self.check_nodes_ssh(debug=True,timeout_minutes=10,silent_minutes=5)
     
-    def nodes_ssh_boot(self):
+    def ssh_node_boot(self):
         "Tries to ssh into nodes in production mode with the root ssh key"
-        return self.check_nodes_ssh(debug=False,timeout_minutes=30,silent_minutes=15)
+        return self.check_nodes_ssh(debug=False,timeout_minutes=40,silent_minutes=15)
     
     @node_mapper
-    def init_node (self): 
+    def qemu_local_init (self): 
         "all nodes : init a clean local directory for holding node-dep stuff like iso image..."
         pass
     @node_mapper
@@ -803,15 +951,27 @@ class TestPlc:
         "all nodes: invoke GetBootMedium and store result locally"
         pass
     @node_mapper
-    def configure_qemu (self): 
+    def qemu_local_config (self): 
         "all nodes: compute qemu config qemu.conf and store it locally"
         pass
     @node_mapper
-    def reinstall_node (self): 
+    def nodestate_reinstall (self): 
         "all nodes: mark PLCAPI boot_state as reinstall"
         pass
     @node_mapper
-    def export_qemu (self): 
+    def nodestate_safeboot (self): 
+        "all nodes: mark PLCAPI boot_state as safeboot"
+        pass
+    @node_mapper
+    def nodestate_boot (self): 
+        "all nodes: mark PLCAPI boot_state as boot"
+        pass
+    @node_mapper
+    def nodestate_show (self): 
+        "all nodes: show PLCAPI boot_state"
+        pass
+    @node_mapper
+    def qemu_export (self): 
         "all nodes: push local node-dep directory on the qemu box"
         pass
         
@@ -829,9 +989,9 @@ class TestPlc:
     def do_check_initscripts(self):
         overall = True
         for slice_spec in self.plc_spec['slices']:
-            if not slice_spec.has_key('initscriptname'):
+            if not slice_spec.has_key('initscriptstamp'):
                 continue
-            initscript=slice_spec['initscriptname']
+            stamp=slice_spec['initscriptstamp']
             for nodename in slice_spec['nodenames']:
                 (site,node) = self.locate_node (nodename)
                 # xxx - passing the wrong site - probably harmless
@@ -839,7 +999,7 @@ class TestPlc:
                 test_slice = TestSlice (self,test_site,slice_spec)
                 test_node = TestNode (self,test_site,node)
                 test_sliver = TestSliver (self, test_node, test_slice)
-                if not test_sliver.check_initscript(initscript):
+                if not test_sliver.check_initscript_stamp(stamp):
                     overall = False
         return overall
            
@@ -854,7 +1014,7 @@ class TestPlc:
             self.apiserver.AddInitScript(self.auth_root(),initscript['initscript_fields'])
         return True
 
-    def clean_initscripts (self):
+    def delete_initscripts (self):
         "delete initscripts with PLCAPI"
         for initscript in self.plc_spec['initscripts']:
             initscript_name = initscript['initscript_fields']['name']
@@ -871,7 +1031,7 @@ class TestPlc:
         "create slices with PLCAPI"
         return self.do_slices()
 
-    def clean_slices (self):
+    def delete_slices (self):
         "delete slices with PLCAPI"
         return self.do_slices("delete")
 
@@ -889,18 +1049,23 @@ class TestPlc:
                 utils.header('Created Slice %s'%slice['slice_fields']['name'])
         return True
         
-    @slice_mapper_options
-    def check_slice(self): 
+    @slice_mapper
+    def ssh_slice(self): 
         "tries to ssh-enter the slice with the user key, to ensure slice creation"
         pass
 
     @node_mapper
-    def clear_known_hosts (self): 
+    def keys_clear_known_hosts (self): 
         "remove test nodes entries from the local known_hosts file"
         pass
     
     @node_mapper
-    def start_node (self) : 
+    def qemu_start (self) : 
+        "all nodes: start the qemu instance (also runs qemu-bridge-init start)"
+        pass
+
+    @node_mapper
+    def timestamp_qemu (self) : 
         "all nodes: start the qemu instance (also runs qemu-bridge-init start)"
         pass
 
@@ -938,24 +1103,97 @@ class TestPlc:
     # in particular runs with --preserve (dont cleanup) and without --check
     # also it gets run twice, once with the --foreign option for creating fake foreign entries
 
-    ### install_sfa_rpm
-    def install_sfa(self):
+    ### sfa_install_rpm
+    def sfa_install(self):
         "yum install sfa, sfa-plc and sfa-client"
-        if self.options.personality == "linux32":
-            arch = "i386"
-        elif self.options.personality == "linux64":
-            arch = "x86_64"
-        else:
-            raise Exception, "Unsupported personality %r"%self.options.personality
-        return self.run_in_guest("yum -y install sfa sfa-client sfa-plc sfa-sfatables")==0
+        # ignore yum retcod
+        self.run_in_guest("yum -y install sfa sfa-client sfa-plc sfa-sfatables")
+        return  self.run_in_guest("rpm -q sfa sfa-client sfa-plc sfa-sfatables")==0
+        
+
+    def sfa_dbclean(self):
+        "thoroughly wipes off the SFA database"
+        self.run_in_guest("sfa-nuke-plc.py")==0
+        return True
+
+    def sfa_plcclean(self):
+        "cleans the PLC entries that were created as a side effect of running the script"
+        # ignore result 
+        sfa_spec=self.plc_spec['sfa']
+
+        slicename='%s_%s'%(sfa_spec['login_base'],sfa_spec['slicename'])
+        try: self.apiserver.DeleteSlice(self.auth_root(),slicename)
+        except: print "Slice %s already absent from PLC db"%slicename
+
+        username="%s@%s"%(sfa_spec['regularuser'],sfa_spec['domain'])
+        try: self.apiserver.DeletePerson(self.auth_root(),username)
+        except: print "User %s already absent from PLC db"%username
+
+        print "REMEMBER TO RUN sfa_import AGAIN"
+        return True
+
+    def sfa_uninstall(self):
+        "uses rpm to uninstall sfa - ignore result"
+        self.run_in_guest("rpm -e sfa sfa-sfatables sfa-client sfa-plc")
+        self.run_in_guest("rm -rf /var/lib/sfa")
+        self.run_in_guest("rm -rf /etc/sfa")
+        self.run_in_guest("rm -rf /var/log/sfa_access.log /var/log/sfa_import_plc.log /var/log/sfa.daemon")
+        # xxx tmp 
+        self.run_in_guest("rpm -e --noscripts sfa-plc")
+        return True
+
+    ### run unit tests for SFA
+    # NOTE: for some reason on f14/i386, yum install sfa-tests fails for no reason
+    # Running Transaction
+    # Transaction couldn't start:
+    # installing package sfa-tests-1.0-21.onelab.i686 needs 204KB on the / filesystem
+    # [('installing package sfa-tests-1.0-21.onelab.i686 needs 204KB on the / filesystem', (9, '/', 208896L))]
+    # no matter how many Gbs are available on the testplc
+    # could not figure out what's wrong, so...
+    # if the yum install phase fails, consider the test is successful
+    # other combinations will eventually run it hopefully
+    def sfa_utest(self):
+        "yum install sfa-tests and run SFA unittests"
+        self.run_in_guest("yum -y install sfa-tests")
+        # failed to install - forget it
+        if self.run_in_guest("rpm -q sfa-tests")!=0: 
+            utils.header("WARNING: SFA unit tests failed to install, ignoring")
+            return True
+        return self.run_in_guest("/usr/share/sfa/tests/testAll.py")==0
 
     ###
-    def configure_sfa(self):
+    def confdir(self):
+        dirname="conf.%s"%self.plc_spec['name']
+        if not os.path.isdir(dirname):
+            utils.system("mkdir -p %s"%dirname)
+        if not os.path.isdir(dirname):
+            raise "Cannot create config dir for plc %s"%self.name()
+        return dirname
+
+    def conffile(self,filename):
+        return "%s/%s"%(self.confdir(),filename)
+    def confsubdir(self,dirname,clean,dry_run=False):
+        subdirname="%s/%s"%(self.confdir(),dirname)
+        if clean:
+            utils.system("rm -rf %s"%subdirname)
+        if not os.path.isdir(subdirname): 
+            utils.system("mkdir -p %s"%subdirname)
+        if not dry_run and not os.path.isdir(subdirname):
+            raise "Cannot create config subdir %s for plc %s"%(dirname,self.name())
+        return subdirname
+        
+    def conffile_clean (self,filename):
+        filename=self.conffile(filename)
+        return utils.system("rm -rf %s"%filename)==0
+    
+    ###
+    def sfa_configure(self):
         "run sfa-config-tty"
-        tmpname='%s.sfa-config-tty'%(self.name())
+        tmpname=self.conffile("sfa-config-tty")
         fileconf=open(tmpname,'w')
         for var in [ 'SFA_REGISTRY_ROOT_AUTH',
-                     'SFA_REGISTRY_LEVEL1_AUTH',
+                     'SFA_INTERFACE_HRN',
+#                     'SFA_REGISTRY_LEVEL1_AUTH',
                     'SFA_REGISTRY_HOST',
                     'SFA_AGGREGATE_HOST',
                      'SFA_SM_HOST',
@@ -964,145 +1202,190 @@ class TestPlc:
                      'SFA_PLC_DB_HOST',
                      'SFA_PLC_DB_USER',
                      'SFA_PLC_DB_PASSWORD',
-                    'SFA_PLC_URL']:
+                    'SFA_PLC_URL',
+                     ]:
             fileconf.write ('e %s\n%s\n'%(var,self.plc_spec['sfa'][var]))
+        # the way plc_config handles booleans just sucks..
+        for var in ['SFA_API_DEBUG']:
+            val='false'
+            if self.plc_spec['sfa'][var]: val='true'
+            fileconf.write ('e %s\n%s\n'%(var,val))
         fileconf.write('w\n')
         fileconf.write('R\n')
         fileconf.write('q\n')
         fileconf.close()
         utils.system('cat %s'%tmpname)
         self.run_in_guest_piped('cat %s'%tmpname,'sfa-config-tty')
-        utils.system('rm %s'%tmpname)
         return True
 
-    def import_sfa(self):
+    def aggregate_xml_line(self):
+        port=self.plc_spec['sfa']['neighbours-port']
+        return '<aggregate addr="%s" hrn="%s" port="%r"/>' % \
+            (self.vserverip,self.plc_spec['sfa']['SFA_REGISTRY_ROOT_AUTH'],port)
+
+    def registry_xml_line(self):
+        return '<registry addr="%s" hrn="%s" port="12345"/>' % \
+            (self.vserverip,self.plc_spec['sfa']['SFA_REGISTRY_ROOT_AUTH'])
+
+
+    # a cross step that takes all other plcs in argument
+    def cross_sfa_configure(self, other_plcs):
+        "writes aggregates.xml and registries.xml that point to all other PLCs in the test"
+        # of course with a single plc, other_plcs is an empty list
+        if not other_plcs:
+            return True
+        agg_fname=self.conffile("agg.xml")
+        file(agg_fname,"w").write("<aggregates>%s</aggregates>\n" % \
+                                     " ".join([ plc.aggregate_xml_line() for plc in other_plcs ]))
+        utils.header ("(Over)wrote %s"%agg_fname)
+        reg_fname=self.conffile("reg.xml")
+        file(reg_fname,"w").write("<registries>%s</registries>\n" % \
+                                     " ".join([ plc.registry_xml_line() for plc in other_plcs ]))
+        utils.header ("(Over)wrote %s"%reg_fname)
+        return self.test_ssh.copy_abs(agg_fname,'/vservers/%s/etc/sfa/aggregates.xml'%self.vservername)==0 \
+            and  self.test_ssh.copy_abs(reg_fname,'/vservers/%s/etc/sfa/registries.xml'%self.vservername)==0
+
+    def sfa_import(self):
         "sfa-import-plc"
        auth=self.plc_spec['sfa']['SFA_REGISTRY_ROOT_AUTH']
         return self.run_in_guest('sfa-import-plc.py')==0
 # not needed anymore
 #        self.run_in_guest('cp /etc/sfa/authorities/%s/%s.pkey /etc/sfa/authorities/server.key'%(auth,auth))
 
-    def start_sfa(self):
+    def sfa_start(self):
         "service sfa start"
         return self.run_in_guest('service sfa start')==0
 
-    def setup_sfa(self):
-        "sfi client configuration"
-       dir_name=".sfi"
-       if os.path.exists(dir_name):
-           utils.system('rm -rf %s'%dir_name)
-       utils.system('mkdir %s'%dir_name)
-       file_name=dir_name + os.sep + 'fake-pi1.pkey'
+    def sfi_configure(self):
+        "Create /root/.sfi on the plc side for sfi client configuration"
+        sfa_spec=self.plc_spec['sfa']
+       dir_name=self.confsubdir("dot-sfi",clean=True,dry_run=self.options.dry_run)
+        if self.options.dry_run: return True
+       file_name=dir_name + os.sep + sfa_spec['piuser'] + '.pkey'
         fileconf=open(file_name,'w')
         fileconf.write (self.plc_spec['keys'][0]['private'])
         fileconf.close()
+        utils.header ("(Over)wrote %s"%file_name)
 
        file_name=dir_name + os.sep + 'sfi_config'
         fileconf=open(file_name,'w')
-       SFI_AUTH=self.plc_spec['sfa']['SFA_REGISTRY_ROOT_AUTH']+".main"
+       SFI_AUTH="%s.%s"%(sfa_spec['SFA_REGISTRY_ROOT_AUTH'],sfa_spec['login_base'])
         fileconf.write ("SFI_AUTH='%s'"%SFI_AUTH)
        fileconf.write('\n')
-       SFI_USER=SFI_AUTH+'.fake-pi1'
+       SFI_USER=SFI_AUTH + '.' + sfa_spec['piuser']
         fileconf.write ("SFI_USER='%s'"%SFI_USER)
        fileconf.write('\n')
-       SFI_REGISTRY='http://' + self.plc_spec['sfa']['SFA_PLC_DB_HOST'] + ':12345/'
+       SFI_REGISTRY='http://' + sfa_spec['SFA_PLC_DB_HOST'] + ':12345/'
         fileconf.write ("SFI_REGISTRY='%s'"%SFI_REGISTRY)
        fileconf.write('\n')
-       SFI_SM='http://' + self.plc_spec['sfa']['SFA_PLC_DB_HOST'] + ':12347/'
+       SFI_SM='http://' + sfa_spec['SFA_PLC_DB_HOST'] + ':12347/'
         fileconf.write ("SFI_SM='%s'"%SFI_SM)
        fileconf.write('\n')
         fileconf.close()
+        utils.header ("(Over)wrote %s"%file_name)
 
        file_name=dir_name + os.sep + 'person.xml'
         fileconf=open(file_name,'w')
-       for record in self.plc_spec['sfa']['sfa_person_xml']:
+       for record in sfa_spec['sfa_person_xml']:
           person_record=record
        fileconf.write(person_record)
        fileconf.write('\n')
         fileconf.close()
+        utils.header ("(Over)wrote %s"%file_name)
 
        file_name=dir_name + os.sep + 'slice.xml'
         fileconf=open(file_name,'w')
-       for record in self.plc_spec['sfa']['sfa_slice_xml']:
+       for record in sfa_spec['sfa_slice_xml']:
            slice_record=record
-       #slice_record=self.plc_spec['sfa']['sfa_slice_xml']
+       #slice_record=sfa_spec['sfa_slice_xml']
        fileconf.write(slice_record)
        fileconf.write('\n')
+        utils.header ("(Over)wrote %s"%file_name)
         fileconf.close()
 
        file_name=dir_name + os.sep + 'slice.rspec'
         fileconf=open(file_name,'w')
        slice_rspec=''
-       for (key, value) in self.plc_spec['sfa']['sfa_slice_rspec'].items():
+       for (key, value) in sfa_spec['sfa_slice_rspec'].items():
            slice_rspec +=value 
        fileconf.write(slice_rspec)
        fileconf.write('\n')
         fileconf.close()
-        location = "root/"
+        utils.header ("(Over)wrote %s"%file_name)
+        
+        # push to the remote root's .sfi
+        location = "root/.sfi"
         remote="/vservers/%s/%s"%(self.vservername,location)
        self.test_ssh.copy_abs(dir_name, remote, recursive=True)
 
-        #utils.system('cat %s'%tmpname)
-        utils.system('rm -rf %s'%dir_name)
         return True
 
-    def add_sfa(self):
-        "run sfi.py add (on Registry) and sfi.py create (on SM) to form new objects"
-       test_plc=self
-        test_user_sfa=TestUserSfa(test_plc,self.plc_spec['sfa'])
-        success=test_user_sfa.add_user()
+    def sfi_clean (self):
+        "clean up /root/.sfi on the plc side"
+        self.run_in_guest("rm -rf /root/.sfi")
+        return True
 
-       for slice_spec in self.plc_spec['sfa']['slices_sfa']:
-            site_spec = self.locate_site (slice_spec['sitename'])
-            test_site = TestSite(self,site_spec)
-           test_slice_sfa=TestSliceSfa(test_plc,test_site,slice_spec)
-           success1=test_slice_sfa.add_slice()
-           success2=test_slice_sfa.create_slice()
-       return success and success1 and success2
-
-    def update_sfa(self):
-        "run sfi.py update (on Registry) and sfi.py create (on SM) on existing objects"
-       test_plc=self
-       test_user_sfa=TestUserSfa(test_plc,self.plc_spec['sfa'])
-       success1=test_user_sfa.update_user()
-       
-       for slice_spec in self.plc_spec['sfa']['slices_sfa']:
-           site_spec = self.locate_site (slice_spec['sitename'])
-           test_site = TestSite(self,site_spec)
-           test_slice_sfa=TestSliceSfa(test_plc,test_site,slice_spec)
-           success2=test_slice_sfa.update_slice()
-       return success1 and success2
-
-    def view_sfa(self):
+    def sfa_add_user(self):
+        "run sfi.py add using person.xml"
+        return TestUserSfa(self).add_user()
+
+    def sfa_update_user(self):
+        "run sfi.py update using person.xml"
+        return TestUserSfa(self).update_user()
+
+    @slice_sfa_mapper
+    def sfa_add_slice(self):
+        "run sfi.py add (on Registry) from slice.xml"
+        pass
+
+    @slice_sfa_mapper
+    def sfa_discover(self):
+        "discover resources into resouces_in.rspec"
+        pass
+
+    @slice_sfa_mapper
+    def sfa_create_slice(self):
+        "run sfi.py create (on SM) - 1st time"
+        pass
+
+    @slice_sfa_mapper
+    def sfa_check_slice_plc(self):
+        "check sfa_create_slice at the plcs - all local nodes should be in slice"
+        pass
+
+    @slice_sfa_mapper
+    def sfa_update_slice(self):
+        "run sfi.py create (on SM) on existing object"
+        pass
+
+    def sfa_view(self):
         "run sfi.py list and sfi.py show (both on Registry) and sfi.py slices and sfi.py resources (both on SM)"
-       auth=self.plc_spec['sfa']['SFA_REGISTRY_ROOT_AUTH']
+        sfa_spec=self.plc_spec['sfa']
+       auth=sfa_spec['SFA_REGISTRY_ROOT_AUTH']
        return \
-       self.run_in_guest("sfi.py -d /root/.sfi/ list %s.main"%auth)==0 and \
-       self.run_in_guest("sfi.py -d /root/.sfi/ show %s.main"%auth)==0 and \
+       self.run_in_guest("sfi.py -d /root/.sfi/ list %s.%s"%(auth,sfa_spec['login_base']))==0 and \
+       self.run_in_guest("sfi.py -d /root/.sfi/ show %s.%s"%(auth,sfa_spec['login_base']))==0 and \
        self.run_in_guest("sfi.py -d /root/.sfi/ slices")==0 and \
        self.run_in_guest("sfi.py -d /root/.sfi/ resources -o resources")==0
 
-    @slice_mapper_options_sfa
-    def check_slice_sfa(self): 
+    @slice_sfa_mapper
+    def ssh_slice_sfa(self): 
        "tries to ssh-enter the SFA slice"
         pass
 
-    def delete_sfa(self):
-       "run sfi.py delete (on SM), sfi.py remove (on Registry)"
-       test_plc=self
-       test_user_sfa=TestUserSfa(test_plc,self.plc_spec['sfa'])
-       success1=test_user_sfa.delete_user()
-       for slice_spec in self.plc_spec['sfa']['slices_sfa']:
-            site_spec = self.locate_site (slice_spec['sitename'])
-            test_site = TestSite(self,site_spec)
-           test_slice_sfa=TestSliceSfa(test_plc,test_site,slice_spec)
-           success2=test_slice_sfa.delete_slice()
+    def sfa_delete_user(self):
+       "run sfi.py delete (on SM) for user"
+       test_user_sfa=TestUserSfa(self)
+       return test_user_sfa.delete_user()
 
-       return success1 and success2
+    @slice_sfa_mapper
+    def sfa_delete_slice(self):
+       "run sfi.py delete (on SM), sfi.py remove (on Registry) to clean slices"
+        pass
 
-    def stop_sfa(self):
+    def sfa_stop(self):
         "service sfa stop"
-        self.run_in_guest('service sfa stop')
+        self.run_in_guest('service sfa stop')==0
         return True
 
     def populate (self):
@@ -1194,20 +1477,22 @@ class TestPlc:
             name=str(d)
         return "/root/%s-%s.sql"%(database,name)
 
-    def db_dump(self):
-        dump=self.dbfile("planetab4")
-        self.run_in_guest('pg_dump -U pgsqluser planetlab4 -f '+ dump)
-        utils.header('Dumped planetlab4 database in %s'%dump)
+    def plc_db_dump(self):
+        'dump the planetlab5 DB in /root in the PLC - filename has time'
+        dump=self.dbfile("planetab5")
+        self.run_in_guest('pg_dump -U pgsqluser planetlab5 -f '+ dump)
+        utils.header('Dumped planetlab5 database in %s'%dump)
         return True
 
-    def db_restore(self):
-        dump=self.dbfile("planetab4")
+    def plc_db_restore(self):
+        'restore the planetlab5 DB - looks broken, but run -n might help'
+        dump=self.dbfile("planetab5")
         ##stop httpd service
         self.run_in_guest('service httpd stop')
         # xxx - need another wrapper
-        self.run_in_guest_piped('echo drop database planetlab4','psql --user=pgsqluser template1')
-        self.run_in_guest('createdb -U postgres --encoding=UNICODE --owner=pgsqluser planetlab4')
-        self.run_in_guest('psql -U pgsqluser planetlab4 -f '+dump)
+        self.run_in_guest_piped('echo drop database planetlab5','psql --user=pgsqluser template1')
+        self.run_in_guest('createdb -U postgres --encoding=UNICODE --owner=pgsqluser planetlab5')
+        self.run_in_guest('psql -U pgsqluser planetlab5 -f '+dump)
         ##starting httpd service
         self.run_in_guest('service httpd start')