https://sourceforge.net/p/xcat/wiki/Confluent_consoles/Recent changes to Confluent_consolesenMon, 04 Aug 2014 02:53:04 -0000https://sourceforge.net/p/xcat/wiki/Confluent_consoles/<div class="markdown_content"><pre>--- v2 +++ v3 @@ -1,3 +1,5 @@ +[[include ref=Design_Warning]] + Console support is provided via console plugins. There are two types of plugins Python </pre> </div>Guang Cheng LiMon, 04 Aug 2014 02:53:04 -0000https://sourceforge.net9669c1e0f43b2bba058249bccc979a71c86b9f19https://sourceforge.net/p/xcat/wiki/Confluent_consoles/<div class="markdown_content"><pre></pre> </div>Jarrod JohnsonFri, 01 Aug 2014 13:15:43 -0000https://sourceforge.net61aa7397b1615bee97a332420dfc4fb00b81df83https://sourceforge.net/p/xcat/wiki/Confluent_consoles/<div class="markdown_content"><p>Console support is provided via console plugins. There are two types of plugins</p> <h1 id="python">Python</h1> <p>Python plugins may provide both console and other capabilities. confluent.interface.console defines the base classes for the Console handler and non-text events for a python plugin to emit. If a plugin is asked to 'create' a '_console/session' resource for a node, it should return an instance of a subclass of Console. The ipmi.py plugin is an example of a plugin that supports multiple things including console objects. It is an example where resource usage is reduced (no forks, pooled filehandles, shared sessions between console and non-console directives) that is possible with a python plugin that is infeasible with a shell plugin.</p> <h1 id="shell">Shell</h1> <p>Shell plugins are a quick way to implement a backend without the full capabilities of a python plugin and worse performance. CONFLUENT_NODE shall be passed in as an environment variable. A syntax shall be defined where a shell plugin can have a comment line requesting other configuration data to be pushed in as environment variables. Disconnect is only possible through exiting. Receiving break currently is not defined in structure, but may provide a syntax to tell confluent how to send a break to a particular plugin. Rapidly supporting current conserver backends is as easy as:</p> <table class="codehilitetable"><tr><td class="linenos"><div class="linenodiv"><pre>1 2</pre></div></td><td class="code"><div class="codehilite"><pre><span class="c">#!/bin/bash</span> <span class="nb">exec</span> /opt/xcat/share/xcat/cons/kvm <span class="nv">$CONFLUENT_NODE</span> </pre></div> </td></tr></table> </div>Jarrod JohnsonFri, 01 Aug 2014 13:13:04 -0000https://sourceforge.netab9ee7d755236d3998f3402f57a9dfe991d0420f