2 vsys sub-configurator. Maintains configuration parameters associated with vsys scripts.
3 All slice attributes with the prefix vsys_ are written into configuration files on the
4 node for the reference of vsys scripts.
10 VSYS_PRIV_DIR = "/etc/planetlab/vsys-attributes"
13 logger.log("vsys_privs: plugin starting")
14 if (not os.path.exists(VSYS_PRIV_DIR)):
15 os.makedirs(VSYS_PRIV_DIR)
16 logger.log("vsys_privs: Created vsys attributes dir")
18 def GetSlivers(data, config=None, plc=None):
20 if 'slivers' not in data:
21 logger.log_missing_data("vsys_privs.GetSlivers",'slivers')
27 # Parse attributes and update dict of scripts
28 if 'slivers' not in data:
29 logger.log_missing_data("vsys_privs.GetSlivers",'slivers')
31 for sliver in data['slivers']:
32 slice = sliver['name']
33 for attribute in sliver['attributes']:
34 tag = attribute['tagname']
35 value = attribute['value']
36 if tag.startswith('vsys_'):
37 if (privs.has_key(slice)):
38 slice_priv = privs[slice]
39 if (slice_priv.has_key(tag)):
40 slice_priv[tag].append(value)
42 slice_priv[tag]=[value]
44 privs[slice] = slice_priv
46 privs[slice] = {tag:[value]}
48 cur_privs = read_privs()
49 write_privs(cur_privs, privs)
53 priv_finder = os.walk(VSYS_PRIV_DIR)
54 priv_find = [i for i in priv_finder]
55 (rootdir,slices,foo) = priv_find[0]
60 if (len(priv_find)>1):
61 for (slicedir,bar,tagnames) in priv_find[1:]:
63 # The depth of the vsys-privileges directory = 1
66 for tagname in tagnames:
67 tagfile = os.path.join(slicedir,tagname)
68 values_n = file(tagfile).readlines()
69 values = map(lambda s:s.rstrip(),values_n)
70 slice = os.path.basename(slicedir)
71 cur_privs[slice][tagname]=values
75 def write_privs(cur_privs,privs):
76 for slice in privs.keys():
77 variables = privs[slice]
78 slice_dir = os.path.join(VSYS_PRIV_DIR,slice)
79 if (not os.path.exists(slice_dir)):
82 # Add values that do not exist
83 for k in variables.keys():
85 if (cur_privs.has_key(slice)
86 and cur_privs[slice].has_key(k)
87 and cur_privs[slice][k] == v):
88 # The binding has not changed
91 v_file = os.path.join(slice_dir, k)
96 logger.log("vsys_privs: added vsys attribute %s for %s"%(k,slice))
98 # Remove files and directories
100 for slice in cur_privs.keys():
101 variables = cur_privs[slice]
102 slice_dir = os.path.join(VSYS_PRIV_DIR,slice)
104 # Add values that do not exist
105 for k in variables.keys():
106 if (privs.has_key(slice)
107 and cur_privs[slice].has_key(k)):
109 print "Sparing %s, %s "%(slice,k)
111 v_file = os.path.join(slice_dir, k)
114 if (not privs.has_key(slice)):
118 if __name__ == "__main__":
119 test_slivers = {'slivers':[
120 {'name':'foo','attributes':[
121 {'tagname':'vsys_m','value':'2'},
122 {'tagname':'vsys_m','value':'3'},
123 {'tagname':'vsys_m','value':'4'}
125 {'name':'bar','attributes':[
126 #{'tagname':'vsys_x','value':'z'}
130 GetSlivers(test_slivers)