5 vsys sub-configurator. Maintains configuration parameters associated with vsys scripts.
6 All slice attributes with the prefix vsys_ are written into configuration files on the
7 node for the reference of vsys scripts.
13 VSYS_PRIV_DIR = "/etc/planetlab/vsys-attributes"
16 logger.log("vsys_privs: plugin starting")
17 if (not os.path.exists(VSYS_PRIV_DIR)):
18 os.makedirs(VSYS_PRIV_DIR)
19 logger.log("vsys_privs: Created vsys attributes dir")
21 def GetSlivers(data, config=None, plc=None):
23 if 'slivers' not in data:
24 logger.log_missing_data("vsys_privs.GetSlivers",'slivers')
30 # Parse attributes and update dict of scripts
31 if 'slivers' not in data:
32 logger.log_missing_data("vsys_privs.GetSlivers",'slivers')
34 for sliver in data['slivers']:
35 slice = sliver['name']
36 for attribute in sliver['attributes']:
37 tag = attribute['tagname']
38 value = attribute['value']
39 if tag.startswith('vsys_'):
40 if (privs.has_key(slice)):
41 slice_priv = privs[slice]
42 if (slice_priv.has_key(tag)):
43 slice_priv[tag].append(value)
45 slice_priv[tag]=[value]
47 privs[slice] = slice_priv
49 privs[slice] = {tag:[value]}
51 cur_privs = read_privs()
52 write_privs(cur_privs, privs)
56 priv_finder = os.walk(VSYS_PRIV_DIR)
57 priv_find = [i for i in priv_finder]
58 (rootdir,slices,foo) = priv_find[0]
63 if (len(priv_find)>1):
64 for (slicedir,bar,tagnames) in priv_find[1:]:
66 # The depth of the vsys-privileges directory = 1
69 for tagname in tagnames:
70 tagfile = os.path.join(slicedir,tagname)
71 values_n = file(tagfile).readlines()
72 values = map(lambda s:s.rstrip(),values_n)
73 slice = os.path.basename(slicedir)
74 cur_privs[slice][tagname]=values
78 def write_privs(cur_privs,privs):
79 for slice in privs.keys():
80 variables = privs[slice]
81 slice_dir = os.path.join(VSYS_PRIV_DIR,slice)
82 if (not os.path.exists(slice_dir)):
85 # Add values that do not exist
86 for k in variables.keys():
88 if (cur_privs.has_key(slice)
89 and cur_privs[slice].has_key(k)
90 and cur_privs[slice][k] == v):
91 # The binding has not changed
94 v_file = os.path.join(slice_dir, k)
99 logger.log("vsys_privs: added vsys attribute %s for %s"%(k,slice))
101 # Remove files and directories
103 for slice in cur_privs.keys():
104 variables = cur_privs[slice]
105 slice_dir = os.path.join(VSYS_PRIV_DIR,slice)
107 # Add values that do not exist
108 for k in variables.keys():
109 if (privs.has_key(slice)
110 and cur_privs[slice].has_key(k)):
112 print "Sparing %s, %s "%(slice,k)
114 v_file = os.path.join(slice_dir, k)
117 if (not privs.has_key(slice)):
121 if __name__ == "__main__":
122 test_slivers = {'slivers':[
123 {'name':'foo','attributes':[
124 {'tagname':'vsys_m','value':'2'},
125 {'tagname':'vsys_m','value':'3'},
126 {'tagname':'vsys_m','value':'4'}
128 {'name':'bar','attributes':[
129 #{'tagname':'vsys_x','value':'z'}
133 GetSlivers(test_slivers)