db-config

   1 #!/usr/bin/env /usr/bin/plcsh
   2 #
   3 # Bootstraps the PLC database with a default administrator account and
   4 # a default site, defines default slice attribute types, and
   5 # creates/updates default system slices.
   6 #
   7 # Mark Huang <mlhuang@cs.princeton.edu>
   8 # Copyright (C) 2006 The Trustees of Princeton University
   9 #
  10 # $Id$
  11 # $HeadURL$
  12
  13 from plc_config import PLCConfiguration
  14 import sys
  15 import resource
  16
  17 g_url = ""
  18 def GetMyPLCURL(): return g_url
  19 def SetMyPLCURL(url):
  20     global g_url
  21     g_url = url
  22
  23 # Get list of existing tag types
  24 g_known_tag_types = [tag_type['tagname'] for tag_type in GetTagTypes()]
  25 g_known_tag_types.sort()
  26
  27 def SetTagType(tag_type):
  28     global g_known_tag_types
  29     # Create/update default slice tag types
  30     if tag_type['tagname'] not in g_known_tag_types:
  31         AddTagType(tag_type)
  32         g_known_tag_types.append(tag_type['tagname'])
  33         g_known_tag_types.sort()
  34     else:
  35         UpdateTagType(tag_type['tagname'], tag_type)
  36
  37 # Get list of existing (enabled, global) files
  38 g_conf_files = GetConfFiles()
  39 g_conf_files = filter(lambda conf_file: conf_file['enabled'] and \
  40                     not conf_file['node_ids'] and \
  41                     not conf_file['nodegroup_ids'],
  42                     g_conf_files)
  43 g_dests = [conf_file['dest'] for conf_file in g_conf_files]
  44 g_conf_files = dict(zip(g_dests, g_conf_files))
  45
  46 # Get list of existing initscripts
  47 g_oldinitscripts = GetInitScripts()
  48 g_oldinitscript_names = [script['name'] for script in g_oldinitscripts]
  49 g_oldinitscripts = dict(zip(g_oldinitscript_names, g_oldinitscripts))
  50
  51 def SetInitScript(initscript):
  52     global g_oldinitscripts, g_oldinitscript_names
  53     if initscript['name'] not in g_oldinitscript_names:
  54         initscript_id = AddInitScript(initscript)
  55         g_oldinitscript_names.append(initscript['name'])
  56         initscript['initscript_id']=initscript_id
  57         g_oldinitscripts[initscript['name']]=initscript
  58     else:
  59         orig_initscript = g_oldinitscripts[initscript['name']]
  60         initscript_id = orig_initscript['initscript_id']
  61         UpdateConfFile(initscript_id, initscript)
  62
  63 def SetConfFile(conf_file):
  64     global g_conf_files, g_dests
  65     if conf_file['dest'] not in g_dests:
  66         AddConfFile(conf_file)
  67     else:
  68         orig_conf_file = g_conf_files[conf_file['dest']]
  69         conf_file_id = orig_conf_file['conf_file_id']
  70         UpdateConfFile(conf_file_id, conf_file)
  71
  72 def SetSlice(slice, tags):
  73     # Create or Update slice
  74     slices = GetSlices([slice['name']])
  75     if len(slices)==1:
  76         slice_id = slices[0]['slice_id']
  77         UpdateSlice(slice_id, slice)
  78     else:
  79         AddSlice(slice)
  80
  81     # Get slice structure with all fields
  82     slice = GetSlices([slice['name']])[0]
  83
  84     # Create/update all tags
  85     slice_tags = {}
  86     if slice['slice_tag_ids']:
  87         # Delete unknown attributes
  88         for slice_tag in GetSliceTags(slice['slice_tag_ids']):
  89             if (slice_tag['tagname'], slice_tag['value']) not in tags:
  90                 DeleteSliceTag(slice_tag['slice_tag_id'])
  91             else:
  92                 slice_tags[slice_tag['tagname']]=slice_tag['value']
  93
  94     # only update slice tags that have changed
  95     for (name, value) in tags:
  96         if name not in slice_tags:
  97             AddSliceTag(slice['name'], name, value)
  98         elif value <> slice_tags[name]:
  99             UpdateSliceTag(slice['name'],value)
 100
 101 def SetMessage(message):
 102     messages = GetMessages([message['message_id']])
 103     if len(messages)==0:
 104         AddMessage(message)
 105     else:
 106         UpdateMessage(message['message_id'],message)
 107
 108 # Get all model names
 109 g_pcu_models = [type['model'] for type in GetPCUTypes()]
 110
 111 def SetPCUType(pcu_type):
 112     global g_pcu_models
 113     if 'pcu_protocol_types' in pcu_type:
 114         protocol_types = pcu_type['pcu_protocol_types']
 115         # Take this value out of the struct.
 116         del pcu_type['pcu_protocol_types']
 117     else:
 118         protocol_types = []
 119
 120     if pcu_type['model'] not in g_pcu_models:
 121         # Add the name/model info into DB
 122         id = AddPCUType(pcu_type)
 123         # for each protocol, also add this.
 124         for ptype in protocol_types:
 125             AddPCUProtocolType(id, ptype)
 126
 127 def GetSnippets(directory):
 128     filenames = []
 129     if os.path.exists(directory):
 130         try:
 131             filenames = os.listdir(directory)
 132         except OSError, e:
 133             raise Exception, "Error when opening %s (%s)" % \
 134                   (os.path.join(dir, file), e)
 135
 136     ignored = (".bak","~",".rpmsave",".rpmnew",".orig")
 137     numberedfiles = {}
 138     for filename in filenames:
 139         shouldIgnore = False
 140         for ignore in ignored:
 141             if filename.endswith(ignore):
 142                 shouldIgnore = True
 143                 break
 144
 145         if not shouldIgnore:
 146             parts = filename.split('-')
 147             if len(parts)>=2:
 148                 name = '-'.join(parts)
 149                 try:
 150                     number = int(parts[0])
 151                     entry = numberedfiles.get(number,[])
 152                     entry.append(name)
 153                     numberedfiles[number]=entry
 154                 except ValueError:
 155                     shouldIgnore = True
 156             else:
 157                 shouldIgnore = True
 158
 159         if shouldIgnore:
 160             print "db-config: ignoring %s snippet" % filename
 161
 162     filenames = []
 163     keys = numberedfiles.keys()
 164     keys.sort()
 165     for k in keys:
 166         for filename in numberedfiles[k]:
 167             filenames.append(filename)
 168     return filenames
 169
 170 def main():
 171     cfg = PLCConfiguration()
 172     cfg.load()
 173     variables = cfg.variables()
 174
 175     # Load variables into dictionaries
 176     for category_id, (category, variablelist) in variables.iteritems():
 177         globals()[category_id] = dict(zip(variablelist.keys(),
 178                                           [variable['value'] for variable in variablelist.values()]))
 179
 180     directory="/etc/planetlab/db-config.d"
 181     snippets = GetSnippets(directory)
 182     for snippet in snippets:
 183         fullpath = os.path.join(directory, snippet)
 184         execfile(fullpath)
 185
 186 if __name__ == '__main__':
 187     main()
 188
 189 # Local variables:
 190 # tab-width: 4
 191 # mode: python
 192 # End: