Author: nacx
Date: Mon Aug 22 07:26:42 2016
New Revision: 1757114
URL: http://svn.apache.org/viewvc?rev=1757114&view=rev
Log:
deploy jclouds site content
Added:
jclouds/site-content/blog/2016/08/22/
jclouds/site-content/blog/2016/08/22/arbitrary-cpu-ram/
jclouds/site-content/blog/2016/08/22/arbitrary-cpu-ram/index.html
Removed:
jclouds/site-content/blog/2016/08/15/
Modified:
jclouds/site-content/blog/atom.xml
jclouds/site-content/blog/index.html
Added: jclouds/site-content/blog/2016/08/22/arbitrary-cpu-ram/index.html
URL:
http://svn.apache.org/viewvc/jclouds/site-content/blog/2016/08/22/arbitrary-cpu-ram/index.html?rev=1757114&view=auto
==============================================================================
--- jclouds/site-content/blog/2016/08/22/arbitrary-cpu-ram/index.html (added)
+++ jclouds/site-content/blog/2016/08/22/arbitrary-cpu-ram/index.html Mon Aug
22 07:26:42 2016
@@ -0,0 +1,346 @@
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+ <h1>Arbitrary CPU and RAM supported in the ComputeService</h1>
+ <span class="text-muted">22 August 2016, by <a
href="https://github.com/ivanlomba";>Iván Lomba</a></span>
+ </div>
+ <p>As part of a <a
href="https://developers.google.com/open-source/gsoc/";>Google Summer of
Code</a> project has been added a feature to allow users to set manually
specific values of CPU and RAM.</p>
+
+<!--more-->
+
+
+<p>The previous Compute Service abstraction assumed that all providers had
hardware profiles, a list of profiles describing different cpu, memory and disk
configurations that can be used to run a node. Some providers, such as <a
href="https://www.profitbricks.com/";>ProfitBricks</a> or <a
href="https://www.elastichosts.com/";>ElasticHosts</a>, do not have the hardware
profiles concept and the previous implementation provides a fixed configuration
with a fixed (hardcoded) list just to conform the interface. The new
implementation allows to use custom hardwares or both (when supported) hardware
profiles and custom hardwares.</p>
+
+<p>Note that using hardware profiles provides hardware optimization or in some
cases cheaper pricings.</p>
+
+<h3>How to use custom hardwares</h3>
+
+<p>There are two ways to use a custom hardware: setting in on the hardwareId
or specifying cores and ram values using minCores and minRam.</p>
+
+<h4>Custom hardware using hardwareId</h4>
+
+<p>When user set the hardwareId, the Template Builder first check if the
provided hardwareId corresponds with an existent hardware profile, and if it
corresponds, it would use it. In case that the provided hardwareId do not match
with an existing hardware profile and have the automatic hardwareId format, it
would use a custom hardware.</p>
+
+<p>To set CPU and RAM with hardwareId you have to set the hardwareId using
template builder with the format:</p>
+
+<p><code>automatic:cores=2;ram=4096</code></p>
+
+<p>as you can see in the following example:</p>
+
+<div class="highlight"><pre><code class="java"><span class="n">Template</span>
<span class="n">template</span> <span class="o">=</span> <span
class="n">templateBuilder</span>
+ <span class="o">.</span><span class="na">hardwareId</span><span
class="o">(</span><span
class="s">"automatic:cores=2;ram=4096"</span><span class="o">)</span>
+ <span class="o">.</span><span class="na">build</span><span
class="o">()</span>
+<span class="n">compute</span><span class="o">.</span><span
class="na">createNodesInGroup</span><span class="o">(</span><span
class="s">"jclouds"</span><span class="o">,</span> <span
class="mi">1</span><span class="o">,</span> <span
class="n">template</span><span class="o">);</span>
+</code></pre></div>
+
+
+<p>In providers that configure disks based on the volume information provided
in the hardware profile you have to specify also the disk size, like in
ProfitBricks, where disk is mandatory, you need to specify it to use custom
machines:</p>
+
+<div class="highlight"><pre><code class="java"><span class="n">Template</span>
<span class="n">template</span> <span class="o">=</span> <span
class="n">templateBuilder</span>
+ <span class="o">.</span><span class="na">hardwareId</span><span
class="o">(</span><span
class="s">"automatic:cores=2;ram=4096;disk=100"</span><span
class="o">)</span>
+ <span class="o">.</span><span class="na">build</span><span
class="o">()</span>
+<span class="n">compute</span><span class="o">.</span><span
class="na">createNodesInGroup</span><span class="o">(</span><span
class="s">"jclouds"</span><span class="o">,</span> <span
class="mi">1</span><span class="o">,</span> <span
class="n">template</span><span class="o">);</span>
+</code></pre></div>
+
+
+<p>To help building the automatic hardwareId, the
<code>automaticHardwareIdSpecBuilder</code> utility creates an
automaticHardwareId string with the provided values of cores, ram and optional
disk size.</p>
+
+<div class="highlight"><pre><code class="java"><span class="n">Template</span>
<span class="n">template</span> <span class="o">=</span> <span
class="n">templateBuilder</span>
+ <span class="o">.</span><span class="na">hardwareId</span><span
class="o">(</span><span class="n">AutomaticHardwareIdSpec</span>
+ <span class="o">.</span><span
class="na">automaticHardwareIdSpecBuilder</span><span class="o">(</span><span
class="mf">2.0</span><span class="o">,</span> <span class="mi">4096</span><span
class="o">,</span> <span class="n">Optional</span><span
class="o">.<</span><span class="n">Float</span><span
class="o">></span><span class="n">absent</span><span class="o">())</span>
+ <span class="o">.</span><span class="na">toString</span><span
class="o">()))</span>
+ <span class="o">.</span><span class="na">build</span><span
class="o">()</span>
+<span class="n">compute</span><span class="o">.</span><span
class="na">createNodesInGroup</span><span class="o">(</span><span
class="s">"jclouds"</span><span class="o">,</span> <span
class="mi">1</span><span class="o">,</span> <span
class="n">template</span><span class="o">);</span>
+</code></pre></div>
+
+
+<h4>Custom hardware using minCores and minRam</h4>
+
+<p>When user set minCores and minRam, first the template builder checks if a
hardware profile matches with the provided minRam and minCores. If not, the
templateBuilder will use the automatic hardware.</p>
+
+<p>To set up custom hardwares using minRam and minCores you have to set them
using template builder.</p>
+
+<div class="highlight"><pre><code class="java"><span class="n">Template</span>
<span class="n">template</span> <span class="o">=</span> <span
class="n">templateBuilder</span>
+ <span class="o">.</span><span class="na">minCores</span><span
class="o">(</span><span class="mi">2</span><span class="o">)</span>
+ <span class="o">.</span><span class="na">minRam</span><span
class="o">(</span><span class="mi">4096</span><span class="o">)</span>
+ <span class="o">.</span><span class="na">build</span><span
class="o">();</span>
+<span class="n">compute</span><span class="o">.</span><span
class="na">createNodesInGroup</span><span class="o">(</span><span
class="s">"jclouds"</span><span class="o">,</span> <span
class="mi">1</span><span class="o">,</span> <span
class="n">template</span><span class="o">);</span>
+</code></pre></div>
+
+
+<p>In providers that need to specify disk, set also minDisk:</p>
+
+<div class="highlight"><pre><code class="java"><span class="n">Template</span>
<span class="n">template</span> <span class="o">=</span> <span
class="n">templateBuilder</span>
+ <span class="o">.</span><span class="na">minCores</span><span
class="o">(</span><span class="mi">2</span><span class="o">)</span>
+ <span class="o">.</span><span class="na">minRam</span><span
class="o">(</span><span class="mi">4096</span><span class="o">)</span>
+ <span class="o">.</span><span class="na">minDisk</span><span
class="o">(</span><span class="mi">100</span><span class="o">)</span>
+ <span class="o">.</span><span class="na">build</span><span
class="o">();</span>
+<span class="n">compute</span><span class="o">.</span><span
class="na">createNodesInGroup</span><span class="o">(</span><span
class="s">"jclouds"</span><span class="o">,</span> <span
class="mi">1</span><span class="o">,</span> <span
class="n">template</span><span class="o">);</span>
+</code></pre></div>
+
+
+<h3>Providers supported</h3>
+
+<p>There are several providers that support arbitrary values of CPU and RAM
like Docker, ElasticHosts, Google Compute Engine, etc. The first available
providers supported by the new feature are:</p>
+
+<ul>
+<li><a href="https://cloud.google.com/compute/";>Google Compute Engine</a></li>
+<li><a href="https://www.profitbricks.com/";>ProfitBricks</a></li>
+</ul>
+
+
+<p>To configure the new feature in other providers add a bind() to the
<code>ArbitraryCpuRamTemplateBuilderImpl</code> class at the provider's context
module:</p>
+
+<div class="highlight"><pre><code class="java"><span
class="n">bind</span><span class="o">(</span><span
class="n">TemplateBuilderImpl</span><span class="o">.</span><span
class="na">class</span><span class="o">).</span><span class="na">to</span><span
class="o">(</span><span
class="n">ArbitraryCpuRamTemplateBuilderImpl</span><span
class="o">.</span><span class="na">class</span><span class="o">);</span>
+</code></pre></div>
+
+
+<p>Also is necessary to modify the function that transform a node from the
provider model to the portable model of jclouds, to include the new automatic
hardwareId (if apply).</p>
+
+<h3>Further development</h3>
+
+<ul>
+<li><strong>Support other providers</strong>: add support for other providers
such as <a href="https://www.elastichosts.com/";>ElasticHosts</a> and <a
href="https://www.docker.com/";>Docker</a>.</li>
+<li><strong>Improve AutomaticHardwareSpec</strong>: improve the
AutomaticHardwareSpec with specific parsers for every parameter in order to
support more custom parameters and some fields, like bootDisk and durable (part
of volumes), that are currently hardcoded to true.</li>
+<li><strong>Usage examples of the new features</strong>: create examples of
the new features in the jclouds-examples repo.</li>
+<li><strong>Custom TemplateBuilderImpl for ProfitBricks</strong>: add a custom
implementation of the TemplateBuilderImpl to fail early when users don't set
the minDisk.</li>
+</ul>
+
+
+<h3>Special thanks</h3>
+
+<p>Special thanks to <a href="https://github.com/nacx";>Ignasi Barrera</a> for
all the help, <a href="https://github.com/demobox";>Andrew Phillips</a> for code
reviews and the rest of jclouds comunity.</p>
+
+<p>Of course, also thanks to Google for running GSoC.</p>
+
+
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Modified: jclouds/site-content/blog/atom.xml
URL:
http://svn.apache.org/viewvc/jclouds/site-content/blog/atom.xml?rev=1757114&r1=1757113&r2=1757114&view=diff
==============================================================================
--- jclouds/site-content/blog/atom.xml (original)
+++ jclouds/site-content/blog/atom.xml Mon Aug 22 07:26:42 2016
@@ -8,10 +8,10 @@
<entry>
- <id>http://jclouds.apache.org/blog/2016/08/15/arbitrary-cpu-ram</id>
+ <id>http://jclouds.apache.org/blog/2016/08/22/arbitrary-cpu-ram</id>
<title type="html"><![CDATA[Arbitrary CPU and RAM supported in the
ComputeService]]></title>
- <link href="http://jclouds.apache.org/blog/2016/08/15/arbitrary-cpu-ram"/>
- <updated>2016-08-15T00:00:00Z</updated>
+ <link href="http://jclouds.apache.org/blog/2016/08/22/arbitrary-cpu-ram"/>
+ <updated>2016-08-22T00:00:00Z</updated>
<content type="html"><