5 # NodeManager plugin - first step of handling omf_controlled slices
8 Overwrites the 'resctl' tag of slivers controlled by OMF so sm.py does the right thing
20 def start(options, conf):
21 logger.log("omf_resctl: plugin starting up...")
23 def GetSlivers(data, conf = None, plc = None):
24 if 'accounts' not in data:
25 logger.log_missing_data("omf_resctl.GetSlivers",'accounts')
29 xmpp_server=data['xmpp']['server']
31 # disabled feature - bailing out
32 # xxx might need to clean up more deeply..
35 # as hrn is set only at AddNode-time, upgraded myplcs might still miss this
36 # clue: just overwrite the hostname of all nodes
37 # for node in GetNodes(): UpdateNode(node['node_id'],{'hostname':node['hostname']})
39 node_hrn = data['hrn']
40 if not hrn: raise Exception,"Empty hrn"
42 node_hrn='default # Failed to read hrn from GetSlivers, please upgrade PLCAPI'
44 for sliver in data['slivers']:
46 for chunk in sliver['attributes']:
47 if chunk['tagname']=='omf_control':
48 # scan all versions of omf-resctl
49 etc_path="/vservers/%s/etc/"%name
50 pattern = etc_path + "omf-resctl-*/omf-resctl.yaml.in"
51 templates = glob.glob (pattern)
53 logger.log("WARNING: omf_resctl plugin, no template found for slice %s using pattern %s"\
56 for template in templates:
57 # remove the .in extension
59 # figure service name as subdir under etc/
60 service_name=os.path.split(template.replace(etc_path,''))[0]
61 # read template and replace
62 template_contents=file(template).read()
63 yaml_contents=template_contents\
64 .replace('@XMPP_SERVER@',xmpp_server)\
65 .replace('@NODE_HRN@',node_hrn)\
66 .replace('@SLICE_NAME@',name)
67 changes=tools.replace_file_with_string(yaml,yaml_contents)
69 sp=subprocess.Popen(['vserver',name,'exec','service',service_name,'restart'],
70 stdout=subprocess.PIPE,stderr=subprocess.STDOUT)
71 (output,retcod)=sp.communicate()
72 logger.log("omf_resctl: %s: restarted resource controller (retcod=%r)"%(name,retcod))
73 logger.log("omf_resctl: got output\n%s"%output)
75 logger.log("omf_resctl: %s: omf_control'ed sliver has no change" % name)