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, os
  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         UpdateInitScript(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     slice_name = slice['name']
  75     slices = GetSlices([slice_name])
  76     if len(slices)==1:
  77         slice_id = slices[0]['slice_id']
  78         if slice.has_key('name'):
  79             del slice['name']
  80         UpdateSlice(slice_id, slice)
  81         slice['name']=slice_name
  82     else:
  83         expires = None
  84         if slice.has_key('expires'):
  85             expires = slice['expires']
  86             del slice['expires']
  87         slice_id = AddSlice(slice)
  88         if expires <> None:
  89             UpdateSlice(slice_id, {'expires':expires})
  90
  91     # Get slice structure with all fields
  92     slice = GetSlices([slice_name])[0]
  93
  94     # Create/delete all tags
  95     # NOTE: update is not needed, since unspecified tags are deleted,
  96     #       and new tags are added
  97     slice_tags = []
  98     if slice['slice_tag_ids']:
  99         # Delete unknown attributes
 100         for slice_tag in GetSliceTags(slice['slice_tag_ids']):
 101             # ignore sliver tags, as those are custom/run-time values
 102             if slice_tag['node_id'] <> None: continue
 103             if (slice_tag['tagname'], slice_tag['value']) not in tags:
 104                 DeleteSliceTag(slice_tag['slice_tag_id'])
 105             else:
 106                 slice_tags.append((slice_tag['tagname'],slice_tag['value']))
 107
 108     # only add slice tags that are new
 109     for (name, value) in tags:
 110         if (name,value) not in slice_tags:
 111             AddSliceTag(slice_name, name, value)
 112         else:
 113             # NOTE: this confirms that the user-specified tag is
 114             #       returned by GetSliceTags
 115             pass
 116
 117 def SetMessage(message):
 118     messages = GetMessages([message['message_id']])
 119     if len(messages)==0:
 120         AddMessage(message)
 121     else:
 122         UpdateMessage(message['message_id'],message)
 123
 124 # Get all model names
 125 g_pcu_models = [type['model'] for type in GetPCUTypes()]
 126
 127 def SetPCUType(pcu_type):
 128     global g_pcu_models
 129     if 'pcu_protocol_types' in pcu_type:
 130         protocol_types = pcu_type['pcu_protocol_types']
 131         # Take this value out of the struct.
 132         del pcu_type['pcu_protocol_types']
 133     else:
 134         protocol_types = []
 135
 136     if pcu_type['model'] not in g_pcu_models:
 137         # Add the name/model info into DB
 138         id = AddPCUType(pcu_type)
 139         # for each protocol, also add this.
 140         for ptype in protocol_types:
 141             AddPCUProtocolType(id, ptype)
 142
 143 def GetSnippets(directory):
 144     filenames = []
 145     if os.path.exists(directory):
 146         try:
 147             filenames = os.listdir(directory)
 148         except OSError, e:
 149             raise Exception, "Error when opening %s (%s)" % \
 150                   (os.path.join(dir, file), e)
 151
 152     ignored = (".bak","~",".rpmsave",".rpmnew",".orig")
 153     numberedfiles = {}
 154     for filename in filenames:
 155         shouldIgnore = False
 156         for ignore in ignored:
 157             if filename.endswith(ignore):
 158                 shouldIgnore = True
 159                 break
 160
 161         if not shouldIgnore:
 162             parts = filename.split('-')
 163             if len(parts)>=2:
 164                 name = '-'.join(parts)
 165                 try:
 166                     number = int(parts[0])
 167                     entry = numberedfiles.get(number,[])
 168                     entry.append(name)
 169                     numberedfiles[number]=entry
 170                 except ValueError:
 171                     shouldIgnore = True
 172             else:
 173                 shouldIgnore = True
 174
 175         if shouldIgnore:
 176             print "db-config: ignoring %s snippet" % filename
 177
 178     filenames = []
 179     keys = numberedfiles.keys()
 180     keys.sort()
 181     for k in keys:
 182         for filename in numberedfiles[k]:
 183             filenames.append(filename)
 184     return filenames
 185
 186 def main():
 187     cfg = PLCConfiguration()
 188     cfg.load()
 189     variables = cfg.variables()
 190
 191     # Load variables into dictionaries
 192     for category_id, (category, variablelist) in variables.iteritems():
 193         globals()[category_id] = dict(zip(variablelist.keys(),
 194                                           [variable['value'] for variable in variablelist.values()]))
 195
 196     directory="/etc/planetlab/db-config.d"
 197     snippets = GetSnippets(directory)
 198     for snippet in snippets:
 199         fullpath = os.path.join(directory, snippet)
 200         execfile(fullpath)
 201
 202 if __name__ == '__main__':
 203     main()
 204
 205 # Local variables:
 206 # tab-width: 4
 207 # mode: python
 208 # End: