blog/archive/2012/12/index.html

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   6     <title>Petter Reinholdtsen: entries from December 2012</title>
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  14  <h1>
  15      <a href="http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  16
  17  </h1>
  18
  19 </div>
  20
  21
  22     <h3>Entries from December 2012.</h3>
  23
  24     <div class="entry">
  25       <div class="title">
  26         <a href="http://people.skolelinux.org/pere/blog/Scripting_the_Cerebrum_bofhd_user_administration_system_using_XML_RPC.html">Scripting the Cerebrum/bofhd user administration system using XML-RPC</a>
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  28       <div class="date">
  29          6th December 2012
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  31       <div class="body">
  32         <p>Where I work at the <a href="http://www.uio.no/">University of
  33 Oslo</a>, we use the
  34 <a href="http://sourceforge.net/projects/cerebrum/">Cerebrum user
  35 administration system</a> to maintain users, groups, DNS, DHCP, etc.
  36 I've known since the system was written that the server is providing
  37 an <a href="http://en.wikipedia.org/wiki/XML-RPC">XML-RPC</a> API, but
  38 I have never spent time to try to figure out how to use it, as we
  39 always use the bofh command line client at work.  Until today.  I want
  40 to script the updating of DNS and DHCP to make it easier to set up
  41 virtual machines.  Here are a few notes on how to use it with
  42 Python.</p>
  43
  44 <p>I started by looking at the source of the Java
  45 <a href="http://cerebrum.svn.sourceforge.net/viewvc/cerebrum/trunk/cerebrum/clients/jbofh/">bofh
  46 client</a>, to figure out how it connected to the API server.  I also
  47 googled for python examples on how to use XML-RPC, and found
  48 <a href="http://tldp.org/HOWTO/XML-RPC-HOWTO/xmlrpc-howto-python.html">a
  49 simple example in</a> the XML-RPC howto.</p>
  50
  51 <p>This simple example code show how to connect, get the list of
  52 commands (as a JSON dump), and how to get the information about the
  53 user currently logged in:</p>
  54
  55 <blockquote><pre>
  56 #!/usr/bin/env python
  57 import getpass
  58 import xmlrpclib
  59 server_url = 'https://cerebrum-uio.uio.no:8000';
  60 username = getpass.getuser()
  61 password = getpass.getpass()
  62 server = xmlrpclib.Server(server_url);
  63 #print server.get_commands(sessionid)
  64 sessionid = server.login(username, password)
  65 print server.run_command(sessionid, "user_info", username)
  66 result = server.logout(sessionid)
  67 print result
  68 </pre></blockquote>
  69
  70 <p>Armed with this knowledge I can now move forward and script the DNS
  71 and DHCP updates I wanted to do.</p>
  72
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  74       <div class="tags">
  75
  76
  77         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin</a>.
  78
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  86
  87
  88
  89 <h2>Archive</h2>
  90 <ul>
  91
  92 <li>2012
  93 <ul>
  94
  95 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
  96
  97 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
  98
  99 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
 100
 101 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
 102
 103 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 104
 105 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 106
 107 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 108
 109 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 110
 111 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 112
 113 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 114
 115 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 116
 117 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (1)</a></li>
 118
 119 </ul></li>
 120
 121 <li>2011
 122 <ul>
 123
 124 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 125
 126 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 127
 128 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 129
 130 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 131
 132 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 133
 134 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 135
 136 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 137
 138 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 139
 140 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 141
 142 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 143
 144 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 145
 146 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 147
 148 </ul></li>
 149
 150 <li>2010
 151 <ul>
 152
 153 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 154
 155 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 156
 157 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 158
 159 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 160
 161 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
 162
 163 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
 164
 165 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
 166
 167 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
 168
 169 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
 170
 171 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
 172
 173 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
 174
 175 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
 176
 177 </ul></li>
 178
 179 <li>2009
 180 <ul>
 181
 182 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 183
 184 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
 185
 186 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
 187
 188 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
 189
 190 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
 191
 192 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
 193
 194 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
 195
 196 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
 197
 198 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
 199
 200 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
 201
 202 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 203
 204 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 205
 206 </ul></li>
 207
 208 <li>2008
 209 <ul>
 210
 211 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 212
 213 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 214
 215 </ul></li>
 216
 217 </ul>
 218
 219
 220
 221 <h2>Tags</h2>
 222 <ul>
 223
 224  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (13)</a></li>
 225
 226  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
 227
 228  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
 229
 230  <li><a href="http://people.skolelinux.org/pere/blog/tags/bankid">bankid (3)</a></li>
 231
 232  <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (3)</a></li>
 233
 234  <li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (12)</a></li>
 235
 236  <li><a href="http://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
 237
 238  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (57)</a></li>
 239
 240  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (116)</a></li>
 241
 242  <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (9)</a></li>
 243
 244  <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (7)</a></li>
 245
 246  <li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
 247
 248  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (161)</a></li>
 249
 250  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (20)</a></li>
 251
 252  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (12)</a></li>
 253
 254  <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (9)</a></li>
 255
 256  <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (9)</a></li>
 257
 258  <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (32)</a></li>
 259
 260  <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (17)</a></li>
 261
 262  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (8)</a></li>
 263
 264  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (5)</a></li>
 265
 266  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
 267
 268  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (25)</a></li>
 269
 270  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (216)</a></li>
 271
 272  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (147)</a></li>
 273
 274  <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (6)</a></li>
 275
 276  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
 277
 278  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (39)</a></li>
 279
 280  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (60)</a></li>
 281
 282  <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (1)</a></li>
 283
 284  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
 285
 286  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (2)</a></li>
 287
 288  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (4)</a></li>
 289
 290  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
 291
 292  <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (4)</a></li>
 293
 294  <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
 295
 296  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (28)</a></li>
 297
 298  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
 299
 300  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (4)</a></li>
 301
 302  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (39)</a></li>
 303
 304  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (3)</a></li>
 305
 306  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (5)</a></li>
 307
 308  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (12)</a></li>
 309
 310  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (1)</a></li>
 311
 312  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (7)</a></li>
 313
 314  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (35)</a></li>
 315
 316  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
 317
 318  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (26)</a></li>
 319
 320 </ul>
 321
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