This change modifies the template interface to support containers and converts the compute services to composable roles. Co-Authored-By: Dan Prince <dprince@redhat.com> Co-Authored-By: Flavio Percoco <flavio@redhat.com> Co-Authored-By: Martin André <m.andre@redhat.com> Co-Authored-By: Steve Baker <sbaker@redhat.com> Change-Id: I82fa58e19de94ec78ca242154bc6ecc592112d1b
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services
A TripleO nested stack Heat template that encapsulates generic configuration data to configure a specific service. This generally includes everything needed to configure the service excluding the local bind ports which are still managed in the per-node role templates directly (controller.yaml, compute.yaml, etc.). All other (global) service settings go into the puppet/service templates.
Input Parameters
Each service may define its own input parameters and defaults. Operators will use the parameter_defaults section of any Heat environment to set per service parameters.
Config Settings
Each service may define a config_settings output variable which returns Hiera settings to be configured.
Steps
Each service may define an output variable which returns a puppet manifest snippet that will run at each of the following steps. Earlier manifests are re-asserted when applying latter ones.
- config_settings: Custom hiera settings for this service. These are used to generate configs.
- step_config: A puppet manifest that is used to step through the deployment sequence. Each sequence is given a "step" (via hiera('step') that provides information for when puppet classes should activate themselves.
- docker_compose:
- container_name:
- volumes:
Steps correlate to the following:
- Service configuration generation with puppet.
- Early Openstack Service setup (database init?)
- Early containerized networking services startup (OVS)
- Network configuration
- General OpenStack Services
- Service activation (Pacemaker)
- Fencing (Pacemaker)