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  66   <h1>Source code for nepi.resources.planetlab.openvswitch.ovs</h1><div class="highlight"><pre>
  67 <span class="c">#</span>
  68 <span class="c">#    NEPI, a framework to manage network experiments</span>
  69 <span class="c">#    Copyright (C) 2013 INRIA</span>
  70 <span class="c">#</span>
  71 <span class="c">#    This program is free software: you can redistribute it and/or modify</span>
  72 <span class="c">#    it under the terms of the GNU General Public License version 2 as</span>
  73 <span class="c">#    published by the Free Software Foundation;</span>
  74 <span class="c">#</span>
  75 <span class="c">#    This program is distributed in the hope that it will be useful,</span>
  76 <span class="c">#    but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
  77 <span class="c">#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span>
  78 <span class="c">#    GNU General Public License for more details.</span>
  79 <span class="c">#</span>
  80 <span class="c">#    You should have received a copy of the GNU General Public License</span>
  81 <span class="c">#    along with this program.  If not, see &lt;http://www.gnu.org/licenses/&gt;.</span>
  82 <span class="c">#</span>
  83 <span class="c"># Authors: Alina Quereilhac &lt;alina.quereilhac@inria.fr&gt;</span>
  84 <span class="c">#         Alexandros Kouvakas &lt;alexandros.kouvakas@inria.fr&gt;</span>
  85 <span class="c">#         Julien Tribino &lt;julien.tribino@inria.fr&gt;</span>
  86
  87
  88 <span class="kn">from</span> <span class="nn">nepi.execution.resource</span> <span class="kn">import</span> <span class="n">ResourceManager</span><span class="p">,</span> <span class="n">clsinit_copy</span><span class="p">,</span> \
  89         <span class="n">ResourceState</span>
  90 <span class="kn">from</span> <span class="nn">nepi.execution.attribute</span> <span class="kn">import</span> <span class="n">Attribute</span><span class="p">,</span> <span class="n">Flags</span>
  91 <span class="kn">from</span> <span class="nn">nepi.resources.planetlab.node</span> <span class="kn">import</span> <span class="n">PlanetlabNode</span>
  92 <span class="kn">from</span> <span class="nn">nepi.resources.linux.application</span> <span class="kn">import</span> <span class="n">LinuxApplication</span>
  93 <span class="kn">import</span> <span class="nn">os</span>
  94
  95 <span class="nd">@clsinit_copy</span>
  96 <div class="viewcode-block" id="PlanetlabOVSSwitch"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovs.PlanetlabOVSSwitch">[docs]</a><span class="k">class</span> <span class="nc">PlanetlabOVSSwitch</span><span class="p">(</span><span class="n">LinuxApplication</span><span class="p">):</span>
  97     <span class="sd">&quot;&quot;&quot;</span>
  98 <span class="sd">    .. class:: Class Args :</span>
  99 <span class="sd">      </span>
 100 <span class="sd">        :param ec: The Experiment controller</span>
 101 <span class="sd">        :type ec: ExperimentController</span>
 102 <span class="sd">        :param guid: guid of the RM</span>
 103 <span class="sd">        :type guid: int</span>
 104
 105 <span class="sd">    &quot;&quot;&quot;</span>
 106
 107     <span class="n">_rtype</span> <span class="o">=</span> <span class="s">&quot;planetlab::OVSSwitch&quot;</span>
 108     <span class="n">_help</span> <span class="o">=</span> <span class="s">&quot;Runs an OpenVSwitch on a PlanetLab host&quot;</span>
 109     <span class="n">_platform</span> <span class="o">=</span> <span class="s">&quot;planetlab&quot;</span>
 110
 111     <span class="n">_authorized_connections</span> <span class="o">=</span> <span class="p">[</span><span class="s">&quot;planetlab::Node&quot;</span><span class="p">,</span> <span class="s">&quot;planetla::OVSPort&quot;</span><span class="p">,</span> <span class="s">&quot;linux::Node&quot;</span><span class="p">]</span>
 112
 113     <span class="nd">@classmethod</span>
 114     <span class="k">def</span> <span class="nf">_register_attributes</span><span class="p">(</span><span class="n">cls</span><span class="p">):</span>
 115         <span class="sd">&quot;&quot;&quot; Register the attributes of OVSSwitch RM </span>
 116
 117 <span class="sd">        &quot;&quot;&quot;</span>
 118         <span class="n">bridge_name</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">&quot;bridge_name&quot;</span><span class="p">,</span>
 119                 <span class="s">&quot;Name of the switch/bridge&quot;</span><span class="p">,</span>
 120                 <span class="n">flags</span> <span class="o">=</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Design</span><span class="p">)</span>
 121         <span class="n">virtual_ip_pref</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">&quot;virtual_ip_pref&quot;</span><span class="p">,</span>
 122                 <span class="s">&quot;Virtual IP/PREFIX of the switch&quot;</span><span class="p">,</span>
 123                 <span class="n">flags</span> <span class="o">=</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Design</span><span class="p">)</span>
 124         <span class="n">controller_ip</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">&quot;controller_ip&quot;</span><span class="p">,</span>
 125                 <span class="s">&quot;IP of the controller&quot;</span><span class="p">,</span>
 126                 <span class="n">flags</span> <span class="o">=</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Design</span><span class="p">)</span>
 127         <span class="n">controller_port</span> <span class="o">=</span> <span class="n">Attribute</span><span class="p">(</span><span class="s">&quot;controller_port&quot;</span><span class="p">,</span>
 128                 <span class="s">&quot;Port of the controller&quot;</span><span class="p">,</span>
 129                 <span class="n">flags</span> <span class="o">=</span> <span class="n">Flags</span><span class="o">.</span><span class="n">Design</span><span class="p">)</span>
 130
 131         <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">bridge_name</span><span class="p">)</span>
 132         <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">virtual_ip_pref</span><span class="p">)</span>
 133         <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">controller_ip</span><span class="p">)</span>
 134         <span class="n">cls</span><span class="o">.</span><span class="n">_register_attribute</span><span class="p">(</span><span class="n">controller_port</span><span class="p">)</span>
 135
 136     <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">ec</span><span class="p">,</span> <span class="n">guid</span><span class="p">):</span>
 137         <span class="sd">&quot;&quot;&quot;</span>
 138 <span class="sd">        :param ec: The Experiment controller</span>
 139 <span class="sd">        :type ec: ExperimentController</span>
 140 <span class="sd">        :param guid: guid of the RM</span>
 141 <span class="sd">        :type guid: int</span>
 142 <span class="sd">    </span>
 143 <span class="sd">        &quot;&quot;&quot;</span>
 144         <span class="nb">super</span><span class="p">(</span><span class="n">PlanetlabOVSSwitch</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="n">ec</span><span class="p">,</span> <span class="n">guid</span><span class="p">)</span>
 145         <span class="bp">self</span><span class="o">.</span><span class="n">_home</span> <span class="o">=</span> <span class="s">&quot;ovsswitch-</span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">guid</span>
 146         <span class="bp">self</span><span class="o">.</span><span class="n">_node</span> <span class="o">=</span> <span class="bp">None</span>
 147
 148     <span class="nd">@property</span>
 149 <div class="viewcode-block" id="PlanetlabOVSSwitch.node"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovs.PlanetlabOVSSwitch.node">[docs]</a>    <span class="k">def</span> <span class="nf">node</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 150         <span class="sd">&quot;&quot;&quot; Node wthat run the switch</span>
 151 <span class="sd">        &quot;&quot;&quot;</span>
 152         <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">_node</span><span class="p">:</span>
 153             <span class="n">nodes</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_connected</span><span class="p">(</span><span class="n">PlanetlabNode</span><span class="o">.</span><span class="n">get_rtype</span><span class="p">())</span>
 154             <span class="k">if</span> <span class="ow">not</span> <span class="n">nodes</span> <span class="ow">or</span> <span class="nb">len</span><span class="p">(</span><span class="n">nodes</span><span class="p">)</span> <span class="o">!=</span> <span class="mi">1</span><span class="p">:</span>
 155                 <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;PlanetlabOVSSwitch must be connected to exactly one PlanetlabNode&quot;</span>
 156                 <span class="c">#self.error(msg)</span>
 157                 <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
 158
 159             <span class="bp">self</span><span class="o">.</span><span class="n">_node</span> <span class="o">=</span> <span class="n">nodes</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
 160
 161         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_node</span>
 162 </div>
 163 <div class="viewcode-block" id="PlanetlabOVSSwitch.valid_connection"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovs.PlanetlabOVSSwitch.valid_connection">[docs]</a>    <span class="k">def</span> <span class="nf">valid_connection</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">guid</span><span class="p">):</span>
 164         <span class="sd">&quot;&quot;&quot; Check if the connection with the guid in parameter is possible. Only meaningful connections are allowed.</span>
 165
 166 <span class="sd">        :param guid: Guid of the current RM</span>
 167 <span class="sd">        :type guid: int</span>
 168 <span class="sd">        :rtype:  Boolean</span>
 169
 170 <span class="sd">        &quot;&quot;&quot;</span>
 171         <span class="n">rm</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">ec</span><span class="o">.</span><span class="n">get_resource</span><span class="p">(</span><span class="n">guid</span><span class="p">)</span>
 172         <span class="k">if</span> <span class="n">rm</span><span class="o">.</span><span class="n">get_rtype</span><span class="p">()</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_authorized_connections</span><span class="p">:</span>
 173             <span class="k">return</span> <span class="bp">False</span>
 174         <span class="k">return</span> <span class="bp">True</span>
 175 </div>
 176 <div class="viewcode-block" id="PlanetlabOVSSwitch.do_provision"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovs.PlanetlabOVSSwitch.do_provision">[docs]</a>    <span class="k">def</span> <span class="nf">do_provision</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 177         <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">mkdir</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">run_home</span><span class="p">)</span>
 178
 179         <span class="bp">self</span><span class="o">.</span><span class="n">check_sliver_ovs</span><span class="p">()</span>
 180         <span class="bp">self</span><span class="o">.</span><span class="n">servers_on</span><span class="p">()</span>
 181         <span class="bp">self</span><span class="o">.</span><span class="n">create_bridge</span><span class="p">()</span>
 182         <span class="bp">self</span><span class="o">.</span><span class="n">assign_controller</span><span class="p">()</span>
 183         <span class="bp">self</span><span class="o">.</span><span class="n">ovs_status</span><span class="p">()</span>
 184
 185         <span class="bp">self</span><span class="o">.</span><span class="n">set_provisioned</span><span class="p">()</span>
 186                                 </div>
 187 <div class="viewcode-block" id="PlanetlabOVSSwitch.do_deploy"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovs.PlanetlabOVSSwitch.do_deploy">[docs]</a>    <span class="k">def</span> <span class="nf">do_deploy</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 188         <span class="sd">&quot;&quot;&quot; Deploy the OVS Switch : Turn on the server, create the bridges</span>
 189 <span class="sd">            and assign the controller</span>
 190 <span class="sd">        &quot;&quot;&quot;</span>
 191
 192         <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">node</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">state</span> <span class="o">&lt;</span> <span class="n">ResourceState</span><span class="o">.</span><span class="n">READY</span><span class="p">:</span>
 193             <span class="bp">self</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s">&quot;---- RESCHEDULING DEPLOY ---- node state </span><span class="si">%s</span><span class="s"> &quot;</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">state</span><span class="p">)</span>
 194             <span class="bp">self</span><span class="o">.</span><span class="n">ec</span><span class="o">.</span><span class="n">schedule</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">reschedule_delay</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">deploy</span><span class="p">)</span>
 195         <span class="k">else</span><span class="p">:</span>
 196             <span class="bp">self</span><span class="o">.</span><span class="n">do_discover</span><span class="p">()</span>
 197             <span class="bp">self</span><span class="o">.</span><span class="n">do_provision</span><span class="p">()</span>
 198
 199             <span class="bp">self</span><span class="o">.</span><span class="n">set_ready</span><span class="p">()</span>
 200 </div>
 201 <div class="viewcode-block" id="PlanetlabOVSSwitch.check_sliver_ovs"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovs.PlanetlabOVSSwitch.check_sliver_ovs">[docs]</a>    <span class="k">def</span> <span class="nf">check_sliver_ovs</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 202         <span class="sd">&quot;&quot;&quot; Check if sliver-ovs exists. If it does not exist, the execution is stopped</span>
 203 <span class="sd">        &quot;&quot;&quot;</span>
 204         <span class="n">command</span> <span class="o">=</span> <span class="s">&quot;compgen -c | grep sliver-ovs&quot;</span>
 205         <span class="n">shfile</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">app_home</span><span class="p">,</span> <span class="s">&quot;check_ovs_cmd.sh&quot;</span><span class="p">)</span>
 206         <span class="k">try</span><span class="p">:</span>
 207             <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">run_and_wait</span><span class="p">(</span><span class="n">command</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_home</span><span class="p">,</span>
 208                     <span class="n">shfile</span><span class="o">=</span><span class="n">shfile</span><span class="p">,</span>
 209                     <span class="n">sudo</span> <span class="o">=</span> <span class="bp">True</span><span class="p">,</span>
 210                     <span class="n">pidfile</span><span class="o">=</span><span class="s">&quot;check_ovs_cmd_pidfile&quot;</span><span class="p">,</span>
 211                     <span class="n">ecodefile</span><span class="o">=</span><span class="s">&quot;check_ovs_cmd_exitcode&quot;</span><span class="p">,</span>
 212                     <span class="n">stdout</span><span class="o">=</span><span class="s">&quot;check_ovs_cmd_stdout&quot;</span><span class="p">,</span>
 213                     <span class="n">stderr</span><span class="o">=</span><span class="s">&quot;check_ovs_cmd_stderr&quot;</span><span class="p">)</span>
 214         <span class="k">except</span> <span class="ne">RuntimeError</span><span class="p">:</span>
 215             <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;Command sliver-ovs does not exist on the VM&quot;</span>
 216             <span class="bp">self</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="n">msg</span><span class="p">)</span>
 217             <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
 218 </div>
 219 <div class="viewcode-block" id="PlanetlabOVSSwitch.servers_on"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovs.PlanetlabOVSSwitch.servers_on">[docs]</a>    <span class="k">def</span> <span class="nf">servers_on</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 220         <span class="sd">&quot;&quot;&quot; Start the openvswitch servers and check it</span>
 221 <span class="sd">        &quot;&quot;&quot;</span>
 222         <span class="c"># Make sure the server is not running        </span>
 223         <span class="n">command</span> <span class="o">=</span> <span class="s">&quot;sliver-ovs del-bridge </span><span class="si">%s</span><span class="s">; sliver-ovs stop&quot;</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&#39;bridge_name&#39;</span><span class="p">)</span>
 224         <span class="n">shfile</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">app_home</span><span class="p">,</span> <span class="s">&quot;clean.sh&quot;</span><span class="p">)</span>
 225         <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">run_and_wait</span><span class="p">(</span><span class="n">command</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_home</span><span class="p">,</span>
 226                 <span class="n">shfile</span><span class="o">=</span><span class="n">shfile</span><span class="p">,</span>
 227                 <span class="n">sudo</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span>
 228                 <span class="n">raise_on_error</span><span class="o">=</span><span class="bp">False</span><span class="p">,</span>
 229                 <span class="n">pidfile</span><span class="o">=</span><span class="s">&quot;clean_pidfile&quot;</span><span class="p">,</span>
 230                 <span class="n">ecodefile</span><span class="o">=</span><span class="s">&quot;clean_exitcode&quot;</span><span class="p">,</span>
 231                 <span class="n">stdout</span><span class="o">=</span><span class="s">&quot;clean_stdout&quot;</span><span class="p">,</span>
 232                 <span class="n">stderr</span><span class="o">=</span><span class="s">&quot;clean_stderr&quot;</span><span class="p">)</span>
 233
 234         <span class="c"># start the server        </span>
 235         <span class="n">command</span> <span class="o">=</span> <span class="s">&quot;sliver-ovs start&quot;</span>
 236         <span class="n">shfile</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">app_home</span><span class="p">,</span> <span class="s">&quot;start.sh&quot;</span><span class="p">)</span>
 237         <span class="k">try</span><span class="p">:</span>
 238             <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">run_and_wait</span><span class="p">(</span><span class="n">command</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_home</span><span class="p">,</span>
 239                     <span class="n">shfile</span><span class="o">=</span><span class="n">shfile</span><span class="p">,</span>
 240                     <span class="n">sudo</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span>
 241                     <span class="n">pidfile</span><span class="o">=</span><span class="s">&quot;start_pidfile&quot;</span><span class="p">,</span>
 242                     <span class="n">ecodefile</span><span class="o">=</span><span class="s">&quot;start_exitcode&quot;</span><span class="p">,</span>
 243                     <span class="n">stdout</span><span class="o">=</span><span class="s">&quot;start_stdout&quot;</span><span class="p">,</span>
 244                     <span class="n">stderr</span><span class="o">=</span><span class="s">&quot;start_stderr&quot;</span><span class="p">)</span>
 245         <span class="k">except</span> <span class="ne">RuntimeError</span><span class="p">:</span>
 246             <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;Failed to start ovs-server on VM&quot;</span>
 247             <span class="bp">self</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="n">msg</span><span class="p">)</span>
 248             <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
 249
 250         <span class="n">command</span> <span class="o">=</span> <span class="s">&quot;ps -A | grep ovsdb-server&quot;</span>
 251         <span class="n">shfile</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">app_home</span><span class="p">,</span> <span class="s">&quot;ovsdb_status.sh&quot;</span><span class="p">)</span>
 252         <span class="k">try</span><span class="p">:</span>
 253             <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">run_and_wait</span><span class="p">(</span><span class="n">command</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_home</span><span class="p">,</span>
 254                     <span class="n">shfile</span><span class="o">=</span><span class="n">shfile</span><span class="p">,</span>
 255                     <span class="n">sudo</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span>
 256                     <span class="n">pidfile</span><span class="o">=</span><span class="s">&quot;ovsdb_status_pidfile&quot;</span><span class="p">,</span>
 257                     <span class="n">ecodefile</span><span class="o">=</span><span class="s">&quot;ovsdb_status_exitcode&quot;</span><span class="p">,</span>
 258                     <span class="n">stdout</span><span class="o">=</span><span class="s">&quot;ovsdb_status_stdout&quot;</span><span class="p">,</span>
 259                     <span class="n">stderr</span><span class="o">=</span><span class="s">&quot;ovsdb_status_stderr&quot;</span><span class="p">)</span>
 260         <span class="k">except</span> <span class="ne">RuntimeError</span><span class="p">:</span>
 261             <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;ovsdb-server not running on VM&quot;</span>
 262             <span class="bp">self</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="n">msg</span><span class="p">)</span>
 263             <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
 264
 265         <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s">&quot;Server OVS Started...&quot;</span><span class="p">)</span>
 266 </div>
 267 <div class="viewcode-block" id="PlanetlabOVSSwitch.create_bridge"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovs.PlanetlabOVSSwitch.create_bridge">[docs]</a>    <span class="k">def</span> <span class="nf">create_bridge</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 268         <span class="sd">&quot;&quot;&quot; Create the bridge/switch and check error during SSH connection</span>
 269 <span class="sd">        &quot;&quot;&quot;</span>
 270         <span class="c"># TODO: Check if previous bridge exist and delete them. Use ovs-vsctl list-br</span>
 271         <span class="c"># TODO: Add check for virtual_ip belonging to vsys_tag</span>
 272         <span class="k">if</span> <span class="ow">not</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;bridge_name&quot;</span><span class="p">)</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;virtual_ip_pref&quot;</span><span class="p">)):</span>
 273             <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;No assignment in one or both attributes&quot;</span>
 274             <span class="bp">self</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="n">msg</span><span class="p">)</span>
 275             <span class="k">raise</span> <span class="ne">AttributeError</span><span class="p">,</span> <span class="n">msg</span>
 276
 277         <span class="n">command</span> <span class="o">=</span> <span class="s">&quot;sliver-ovs create-bridge &#39;</span><span class="si">%s</span><span class="s">&#39; &#39;</span><span class="si">%s</span><span class="s">&#39;&quot;</span> <span class="o">%</span> <span class="p">(</span>
 278                           <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;bridge_name&quot;</span><span class="p">),</span>
 279                           <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;virtual_ip_pref&quot;</span><span class="p">))</span>
 280
 281         <span class="n">shfile</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">app_home</span><span class="p">,</span> <span class="s">&quot;bridge_create.sh&quot;</span><span class="p">)</span>
 282         <span class="k">try</span><span class="p">:</span>
 283             <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">run_and_wait</span><span class="p">(</span><span class="n">command</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_home</span><span class="p">,</span>
 284                     <span class="n">shfile</span><span class="o">=</span><span class="n">shfile</span><span class="p">,</span>
 285                     <span class="n">sudo</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span>
 286                     <span class="n">pidfile</span><span class="o">=</span><span class="s">&quot;bridge_create_pidfile&quot;</span><span class="p">,</span>
 287                     <span class="n">ecodefile</span><span class="o">=</span><span class="s">&quot;bridge_create_exitcode&quot;</span><span class="p">,</span>
 288                     <span class="n">stdout</span><span class="o">=</span><span class="s">&quot;bridge_create_stdout&quot;</span><span class="p">,</span>
 289                     <span class="n">stderr</span><span class="o">=</span><span class="s">&quot;bridge_create_stderr&quot;</span><span class="p">)</span>
 290         <span class="k">except</span> <span class="ne">RuntimeError</span><span class="p">:</span>
 291             <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;No such pltap netdev</span><span class="se">\n</span><span class="s">ovs-appctl: ovs-vswitchd: server returned an error&quot;</span>
 292             <span class="bp">self</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="n">msg</span><span class="p">)</span>
 293             <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
 294
 295         <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s">&quot; Bridge </span><span class="si">%s</span><span class="s"> Created and Assigned to </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span>\
 296             <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;bridge_name&quot;</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;virtual_ip_pref&quot;</span><span class="p">))</span> <span class="p">)</span>
 297 </div>
 298 <div class="viewcode-block" id="PlanetlabOVSSwitch.assign_controller"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovs.PlanetlabOVSSwitch.assign_controller">[docs]</a>    <span class="k">def</span> <span class="nf">assign_controller</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 299         <span class="sd">&quot;&quot;&quot; Set the controller IP</span>
 300 <span class="sd">        &quot;&quot;&quot;</span>
 301
 302         <span class="k">if</span> <span class="ow">not</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;controller_ip&quot;</span><span class="p">)</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;controller_port&quot;</span><span class="p">)):</span>
 303             <span class="k">return</span>
 304
 305         <span class="sd">&quot;&quot;&quot;</span>
 306 <span class="sd">        if not (self.get(&quot;controller_ip&quot;) and self.get(&quot;controller_port&quot;)):</span>
 307 <span class="sd">            msg = &quot;No assignment in one or both attributes&quot;</span>
 308 <span class="sd">            self.error(msg)</span>
 309 <span class="sd">            raise AttributeError, msg</span>
 310 <span class="sd">        &quot;&quot;&quot;</span>
 311         <span class="n">command</span> <span class="o">=</span> <span class="s">&quot;ovs-vsctl set-controller </span><span class="si">%s</span><span class="s"> tcp:</span><span class="si">%s</span><span class="s">:</span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> \
 312                 <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;bridge_name&quot;</span><span class="p">),</span>
 313                         <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;controller_ip&quot;</span><span class="p">),</span>
 314                         <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;controller_port&quot;</span><span class="p">))</span>
 315
 316         <span class="n">shfile</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">app_home</span><span class="p">,</span> <span class="s">&quot;set_controller.sh&quot;</span><span class="p">)</span>
 317         <span class="k">try</span><span class="p">:</span>
 318             <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">run_and_wait</span><span class="p">(</span><span class="n">command</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_home</span><span class="p">,</span>
 319                     <span class="n">shfile</span><span class="o">=</span><span class="n">shfile</span><span class="p">,</span>
 320                     <span class="n">sudo</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span>
 321                     <span class="n">pidfile</span><span class="o">=</span><span class="s">&quot;set_controller_pidfile&quot;</span><span class="p">,</span>
 322                     <span class="n">ecodefile</span><span class="o">=</span><span class="s">&quot;set_controller_exitcode&quot;</span><span class="p">,</span>
 323                     <span class="n">stdout</span><span class="o">=</span><span class="s">&quot;set_controller_stdout&quot;</span><span class="p">,</span>
 324                     <span class="n">stderr</span><span class="o">=</span><span class="s">&quot;set_controller_stderr&quot;</span><span class="p">)</span>
 325         <span class="k">except</span> <span class="ne">RuntimeError</span><span class="p">:</span>
 326             <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;SSH connection in the method assign_controller&quot;</span>
 327             <span class="bp">self</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="n">msg</span><span class="p">)</span>
 328             <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
 329
 330         <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s">&quot;Controller assigned to the bridge </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&quot;bridge_name&quot;</span><span class="p">))</span>
 331             </div>
 332 <div class="viewcode-block" id="PlanetlabOVSSwitch.ovs_status"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovs.PlanetlabOVSSwitch.ovs_status">[docs]</a>    <span class="k">def</span> <span class="nf">ovs_status</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 333         <span class="sd">&quot;&quot;&quot; Print the status of the bridge                              </span>
 334 <span class="sd">        &quot;&quot;&quot;</span>
 335         <span class="n">command</span> <span class="o">=</span> <span class="s">&quot;sliver-ovs show | tail -n +2&quot;</span>
 336         <span class="n">shfile</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">app_home</span><span class="p">,</span> <span class="s">&quot;ovs_status.sh&quot;</span><span class="p">)</span>
 337         <span class="k">try</span><span class="p">:</span>
 338             <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">run_and_wait</span><span class="p">(</span><span class="n">command</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_home</span><span class="p">,</span>
 339                     <span class="n">shfile</span><span class="o">=</span><span class="n">shfile</span><span class="p">,</span>
 340                     <span class="n">sudo</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span>
 341                     <span class="n">pidfile</span><span class="o">=</span><span class="s">&quot;ovs_status_pidfile&quot;</span><span class="p">,</span>
 342                     <span class="n">ecodefile</span><span class="o">=</span><span class="s">&quot;ovs_status_exitcode&quot;</span><span class="p">,</span>
 343                     <span class="n">stdout</span><span class="o">=</span><span class="s">&quot;ovs_status_stdout&quot;</span><span class="p">,</span>
 344                     <span class="n">stderr</span><span class="o">=</span><span class="s">&quot;ovs_status_stderr&quot;</span><span class="p">)</span>
 345         <span class="k">except</span> <span class="ne">RuntimeError</span><span class="p">:</span>
 346             <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;Error when checking the status of the OpenVswitch&quot;</span>
 347             <span class="bp">self</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="n">msg</span><span class="p">)</span>
 348             <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">,</span> <span class="n">msg</span>
 349 </div>
 350 <div class="viewcode-block" id="PlanetlabOVSSwitch.do_release"><a class="viewcode-back" href="../../../../../_layout/nepi.resources.planetlab.openvswitch.html#nepi.resources.planetlab.openvswitch.ovs.PlanetlabOVSSwitch.do_release">[docs]</a>    <span class="k">def</span> <span class="nf">do_release</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
 351         <span class="sd">&quot;&quot;&quot; Delete the bridge and close the server.  </span>
 352
 353 <span class="sd">          .. note : It need to wait for the others RM (OVSPort and OVSTunnel)</span>
 354 <span class="sd">        to be released before releasing itself</span>
 355
 356 <span class="sd">        &quot;&quot;&quot;</span>
 357
 358         <span class="kn">from</span> <span class="nn">nepi.resources.planetlab.openvswitch.ovsport</span> <span class="kn">import</span> <span class="n">PlanetlabOVSPort</span>
 359         <span class="n">rms</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_connected</span><span class="p">(</span><span class="n">PlanetlabOVSPort</span><span class="o">.</span><span class="n">get_rtype</span><span class="p">())</span>
 360
 361         <span class="k">for</span> <span class="n">rm</span> <span class="ow">in</span> <span class="n">rms</span><span class="p">:</span>
 362             <span class="k">if</span> <span class="n">rm</span><span class="o">.</span><span class="n">state</span> <span class="o">&lt;</span> <span class="n">ResourceState</span><span class="o">.</span><span class="n">RELEASED</span><span class="p">:</span>
 363                 <span class="bp">self</span><span class="o">.</span><span class="n">ec</span><span class="o">.</span><span class="n">schedule</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">reschedule_delay</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">release</span><span class="p">)</span>
 364                 <span class="k">return</span>
 365
 366         <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;Deleting the bridge </span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&#39;bridge_name&#39;</span><span class="p">)</span>
 367         <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="n">msg</span><span class="p">)</span>
 368
 369         <span class="n">command</span> <span class="o">=</span> <span class="s">&quot;sliver-ovs del-bridge </span><span class="si">%s</span><span class="s">; sliver-ovs stop&quot;</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s">&#39;bridge_name&#39;</span><span class="p">)</span>
 370         <span class="n">shfile</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">app_home</span><span class="p">,</span> <span class="s">&quot;stop.sh&quot;</span><span class="p">)</span>
 371
 372         <span class="bp">self</span><span class="o">.</span><span class="n">node</span><span class="o">.</span><span class="n">run_and_wait</span><span class="p">(</span><span class="n">command</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">run_home</span><span class="p">,</span>
 373                 <span class="n">shfile</span><span class="o">=</span><span class="n">shfile</span><span class="p">,</span>
 374                 <span class="n">sudo</span><span class="o">=</span><span class="bp">True</span><span class="p">,</span>
 375                 <span class="n">pidfile</span><span class="o">=</span><span class="s">&quot;stop_pidfile&quot;</span><span class="p">,</span>
 376                 <span class="n">ecodefile</span><span class="o">=</span><span class="s">&quot;stop_exitcode&quot;</span><span class="p">,</span>
 377                 <span class="n">stdout</span><span class="o">=</span><span class="s">&quot;stop_stdout&quot;</span><span class="p">,</span>
 378                 <span class="n">stderr</span><span class="o">=</span><span class="s">&quot;stop_stderr&quot;</span><span class="p">)</span>
 379
 380         <span class="nb">super</span><span class="p">(</span><span class="n">PlanetlabOVSSwitch</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">do_release</span><span class="p">()</span>
 381 </pre></div></div></div>
 382
 383           </div>
 384         </div>
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