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 for sliver in data['slivers']:
37 for chunk in sliver['attributes']:
38 if chunk['tagname']=='omf_control':
39 # scan all versions of omf-resctl
40 etc_path="/vservers/%s/etc/"%name
41 pattern = etc_path + "omf-resctl-*/omf-resctl.yaml.in"
42 templates = glob.glob (pattern)
44 logger.log("WARNING: omf_resctl plugin, no template found for slice %s using pattern %s"\
47 for template in templates:
48 # remove the .in extension
50 # figure service name as subdir under etc/
51 service_name=os.path.split(template.replace(etc_path,''))[0]
52 # read template and replace
53 template_contents=file(template).read()
54 yaml_contents=template_contents\
55 .replace('@XMPP_SERVER@',xmpp_server)\
56 .replace('@NODE_HRN@','default # xxx todo in omf-resctl nm plugin')\
57 .replace('@SLICE_NAME@',name)
58 changes=tools.replace_file_with_string(yaml,yaml_contents)
60 sp=subprocess.Popen(['vserver',name,'exec','service',service_name,'restart'],
61 stdout=subprocess.PIPE,stderr=subprocess.STDOUT)
62 (output,retcod)=sp.communicate()
63 logger.log("omf_resctl: %s: restarted resource controller (retcod=%r)"%(name,retcod))
64 logger.log("omf_resctl: got output\n%s"%output)
66 logger.log("omf_resctl: %s: omf_control'ed sliver has no change" % name)