Composable services tutorial

This guide will be a walkthrough related to how to add new services to a TripleO deployment through additions to the tripleo-heat-templates and puppet-tripleo repositories, using part of the architecture defined in the composable services architecture.

Note

No puppet manifests may be defined in the THT repository, they should go to the puppet-tripleo repository instead.

• Introduction
  • Relevant repositories in this guide
  • Gerrit patches used in this example
  • Change prerequisites
• Updating tripleo-heat-templates
  • Folder structure convention for tripleo-heat-templates
  • Changes list
  • Step 1 - Updating puppet references
  • Step 2 - overcloud-resource-registry-puppet.j2.yaml resource registry changes
  • Step 3 - roles_data.yaml initial changes
  • Step 4 - Create the services yaml files
• Updating puppet-tripleo
  • Folder structure convention
  • Adding the puppet manifest
• THT design patterns
  • Duplicated parameters
• TLS support for services
  • Public TLS
  • Internal TLS
• Summary
• Service template sections description
  • What’s the bare-minimum?
  • Ansible-related parameters
  • Container-related parameters