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<h4 class="subsection">4.9.3 Latent Buildslaves</h4>
<p>The standard buildbot model has slaves started manually. The previous section
described how to configure the master for this approach.
<p>Another approach is to let the buildbot master start slaves when builds are
ready, on-demand. Thanks to services such as Amazon Web Services' Elastic
Compute Cloud ("AWS EC2"), this is relatively easy to set up, and can be
very useful for some situations.
<p>The buildslaves that are started on-demand are called "latent" buildslaves.
As of this writing, buildbot ships with an abstract base class for building
latent buildslaves, and a concrete implementation for AWS EC2.
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<li><a accesskey="1" href="Amazon-Web-Services-Elastic-Compute-Cloud-_0028_0022AWS-EC2_0022_0029.html#Amazon-Web-Services-Elastic-Compute-Cloud-_0028_0022AWS-EC2_0022_0029">Amazon Web Services Elastic Compute Cloud ("AWS EC2")</a>
<li><a accesskey="2" href="Libvirt.html#Libvirt">Libvirt</a>
<li><a accesskey="3" href="Dangers-with-Latent-Buildslaves.html#Dangers-with-Latent-Buildslaves">Dangers with Latent Buildslaves</a>
<li><a accesskey="4" href="Writing-New-Latent-Buildslaves.html#Writing-New-Latent-Buildslaves">Writing New Latent Buildslaves</a>
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