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5.4. Default Director Templates
The director also contains an advanced Heat template collection for the Overcloud. This collection is stored in
/usr/share/openstack-tripleo-heat-templates.
There are many Heat templates and environment files in this collection. However, the three main files to note in this template collection:
overcloud-without-mergepy.yaml- This is the main template file used to create the Overcloud environment.overcloud-resource-registry-puppet.yaml- This is the main environment file used to create the Overcloud environment. It provides a set of configurations for Puppet modules stored on the Overcloud image. After the director writes the Overcloud image to each node, Heat starts the Puppet configuration for each node using the resources registered in this environment file.overcloud-resource-registry.yaml- This is a standard environment file used to create the Overcloud environment. Theovercloud-resource-registry-puppet.yamlis based on this file. This file is used for a customized configuration of your environment.
The Basic and Advanced Overcloud scenarios use this template collection. Both use the
overcloud-without-mergepy.yaml template and the overcloud-resource-registry-puppet.yaml environment file to configure the Overcloud image for each node. We will also create an environment file to configure network isolation for both the Basic and Advanced Scenarios.
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