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community.general/html/_modules/taboot/tasks/mod_jk.html
Tim Bielawa 5e453555e3 Let me upgrade your docs
2012-03-07 11:35:18 -05:00

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<h1>Source code for taboot.tasks.mod_jk</h1><div class="highlight"><pre>
<span class="c"># -*- coding: utf-8 -*-</span>
<span class="c"># Taboot - Client utility for performing deployments with Func.</span>
<span class="c"># Copyright © 2009-2011, Red Hat, Inc.</span>
<span class="c">#</span>
<span class="c"># This program is free software: you can redistribute it and/or modify</span>
<span class="c"># it under the terms of the GNU General Public License as published by</span>
<span class="c"># the Free Software Foundation, either version 3 of the License, or</span>
<span class="c"># (at your option) any later version.</span>
<span class="c">#</span>
<span class="c"># This program is distributed in the hope that it will be useful,</span>
<span class="c"># but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<span class="c"># MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<span class="c"># GNU General Public License for more details.</span>
<span class="c">#</span>
<span class="c"># You should have received a copy of the GNU General Public License</span>
<span class="c"># along with this program. If not, see &lt;http://www.gnu.org/licenses/&gt;.</span>
<span class="kn">from</span> <span class="nn">taboot.tasks</span> <span class="kn">import</span> <span class="n">BaseTask</span><span class="p">,</span> <span class="n">FuncTask</span><span class="p">,</span> <span class="n">TaskResult</span>
<span class="n">JK_ENABLE</span> <span class="o">=</span> <span class="mi">0</span>
<span class="n">JK_DISABLE</span> <span class="o">=</span> <span class="mi">1</span>
<span class="n">JK_STOP</span> <span class="o">=</span> <span class="mi">2</span>
<span class="k">class</span> <span class="nc">ToggleHost</span><span class="p">(</span><span class="n">FuncTask</span><span class="p">):</span>
<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">action</span><span class="p">,</span> <span class="n">proxyhost</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="nb">super</span><span class="p">(</span><span class="n">ToggleHost</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">proxyhost</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_action</span> <span class="o">=</span> <span class="n">action</span>
<span class="k">if</span> <span class="n">action</span> <span class="o">==</span> <span class="n">JK_ENABLE</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_command</span> <span class="o">=</span> <span class="s">&#39;taboot.modjk.enable_host&#39;</span>
<span class="k">elif</span> <span class="n">action</span> <span class="o">==</span> <span class="n">JK_DISABLE</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_command</span> <span class="o">=</span> <span class="s">&#39;taboot.modjk.disable_host&#39;</span>
<span class="k">elif</span> <span class="n">action</span> <span class="o">==</span> <span class="n">JK_STOP</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_command</span> <span class="o">=</span> <span class="s">&#39;taboot.modjk.stop_host&#39;</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="s">&quot;Undefined toggle action&quot;</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_process_result</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">result</span><span class="p">):</span>
<span class="n">t</span> <span class="o">=</span> <span class="n">TaskResult</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">result</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">:</span>
<span class="n">t</span><span class="o">.</span><span class="n">success</span> <span class="o">=</span> <span class="bp">True</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_action</span> <span class="o">==</span> <span class="n">JK_ENABLE</span><span class="p">:</span>
<span class="n">verb</span> <span class="o">=</span> <span class="s">&#39;Enabled&#39;</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">_action</span> <span class="o">==</span> <span class="n">JK_DISABLE</span><span class="p">:</span>
<span class="n">verb</span> <span class="o">=</span> <span class="s">&#39;Disabled&#39;</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">_action</span> <span class="o">==</span> <span class="n">JK_STOP</span><span class="p">:</span>
<span class="n">verb</span> <span class="o">=</span> <span class="s">&#39;Stopped&#39;</span>
<span class="n">t</span><span class="o">.</span><span class="n">output</span> <span class="o">=</span> <span class="s">&quot;</span><span class="si">%s</span><span class="s"> AJP on the following balancer/worker &quot;</span> \
<span class="s">&quot;pairs:</span><span class="se">\n</span><span class="s">&quot;</span> <span class="o">%</span> <span class="n">verb</span>
<span class="k">for</span> <span class="n">balancer</span><span class="p">,</span> <span class="n">worker</span> <span class="ow">in</span> <span class="n">result</span><span class="p">:</span>
<span class="n">t</span><span class="o">.</span><span class="n">output</span> <span class="o">+=</span> <span class="s">&quot;</span><span class="si">%s</span><span class="s">: </span><span class="si">%s</span><span class="se">\n</span><span class="s">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">balancer</span><span class="p">,</span> <span class="n">worker</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">t</span><span class="o">.</span><span class="n">success</span> <span class="o">=</span> <span class="bp">False</span>
<span class="n">t</span><span class="o">.</span><span class="n">output</span> <span class="o">=</span> <span class="s">&quot;Failed to find worker host&quot;</span>
<span class="k">return</span> <span class="n">t</span>
<span class="k">class</span> <span class="nc">JKBaseTask</span><span class="p">(</span><span class="n">BaseTask</span><span class="p">):</span>
<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">proxies</span><span class="p">,</span> <span class="n">action</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="nb">super</span><span class="p">(</span><span class="n">JKBaseTask</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="o">**</span><span class="n">kwargs</span><span class="p">)</span>
<span class="kn">from</span> <span class="nn">sys</span> <span class="kn">import</span> <span class="n">modules</span>
<span class="bp">self</span><span class="o">.</span><span class="n">proxies</span> <span class="o">=</span> <span class="n">proxies</span>
<span class="bp">self</span><span class="o">.</span><span class="n">jkaction</span> <span class="o">=</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">modules</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">__module__</span><span class="p">],</span> <span class="s">&quot;JK_</span><span class="si">%s</span><span class="s">&quot;</span> <span class="o">%</span>
<span class="n">action</span><span class="o">.</span><span class="n">upper</span><span class="p">())</span>
<span class="k">def</span> <span class="nf">run</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">runner</span><span class="p">):</span>
<span class="n">output</span> <span class="o">=</span> <span class="s">&quot;&quot;</span>
<span class="n">success</span> <span class="o">=</span> <span class="bp">True</span>
<span class="k">for</span> <span class="n">proxy</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">proxies</span><span class="p">:</span>
<span class="n">toggler</span> <span class="o">=</span> <span class="n">ToggleHost</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">jkaction</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_host</span><span class="p">,</span> <span class="n">host</span><span class="o">=</span><span class="n">proxy</span><span class="p">)</span>
<span class="n">result</span> <span class="o">=</span> <span class="n">toggler</span><span class="o">.</span><span class="n">run</span><span class="p">(</span><span class="n">runner</span><span class="p">)</span>
<span class="n">output</span> <span class="o">+=</span> <span class="s">&quot;</span><span class="si">%s</span><span class="s">:</span><span class="se">\n</span><span class="s">&quot;</span> <span class="o">%</span> <span class="n">proxy</span>
<span class="n">output</span> <span class="o">+=</span> <span class="s">&quot;</span><span class="si">%s</span><span class="se">\n</span><span class="s">&quot;</span> <span class="o">%</span> <span class="n">result</span><span class="o">.</span><span class="n">output</span>
<span class="k">if</span> <span class="n">result</span><span class="o">.</span><span class="n">success</span> <span class="o">==</span> <span class="bp">False</span><span class="p">:</span>
<span class="n">success</span> <span class="o">=</span> <span class="bp">False</span>
<span class="k">break</span>
<span class="k">return</span> <span class="n">TaskResult</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">success</span><span class="o">=</span><span class="n">success</span><span class="p">,</span> <span class="n">output</span><span class="o">=</span><span class="n">output</span><span class="p">)</span>
<div class="viewcode-block" id="OutOfRotation"><a class="viewcode-back" href="../../../code.html#taboot.tasks.mod_jk.OutOfRotation">[docs]</a><span class="k">class</span> <span class="nc">OutOfRotation</span><span class="p">(</span><span class="n">JKBaseTask</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> Remove an AJP node from rotation on a proxy via modjkapi access on</span>
<span class="sd"> the proxy with func.</span>
<span class="sd"> :Parameters:</span>
<span class="sd"> - `proxies`: A list of URLs to AJP jkmanage interfaces</span>
<span class="sd"> &quot;&quot;&quot;</span>
<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">proxies</span><span class="p">,</span> <span class="n">action</span><span class="o">=</span><span class="s">&quot;stop&quot;</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="nb">super</span><span class="p">(</span><span class="n">OutOfRotation</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">proxies</span><span class="p">,</span> <span class="n">action</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="InRotation"><a class="viewcode-back" href="../../../code.html#taboot.tasks.mod_jk.InRotation">[docs]</a><span class="k">class</span> <span class="nc">InRotation</span><span class="p">(</span><span class="n">JKBaseTask</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> Put an AJP node in rotation on a proxy via modjkapi access on</span>
<span class="sd"> the proxy with func.</span>
<span class="sd"> :Parameters:</span>
<span class="sd"> - `proxies`: A list of URLs to AJP jkmanage interfaces</span>
<span class="sd"> &quot;&quot;&quot;</span>
<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">proxies</span><span class="p">,</span> <span class="n">action</span><span class="o">=</span><span class="s">&quot;enable&quot;</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="nb">super</span><span class="p">(</span><span class="n">InRotation</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">proxies</span><span class="p">,</span> <span class="n">action</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span></div>
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