Trilio for OpenStack Architecture
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Trilio is an add on service to OpenStack cloud infrastructure and provides backup and disaster recovery functions for tenant workloads. Trilio is very similar to other OpenStack services including nova, cinder, glance, etc and adheres to all tenets of OpenStack. It is a stateless service that scales with your cloud.
Trilio has four main software components:
Trilio ships as a QCOW2 image. User can instantiate one or more VMs from the QCOW2 image on a standalone KVM boxes.
Trilio API is a python module that is installed on all OpenStack controller nodes where the nova-api service is running.
Trilio Datamover is a python module that is installed on every OpenStack compute nodes
Trilio horizon plugin is installed as an add on to horizon servers. This module is installed on every server that runs horizon service.
Trilio is both a provider and consumer into OpenStack ecosystem. It uses other OpenStack services such as nova, cinder, glance, neutron, and keystone and provides its own service to OpenStack tenants. To accomodate all possible OpenStack deployments, Trilio can be configured to use either public or internal URLs of services. Likewise Trilio provides its own public, internal and admin URLs.
This figure represents a typical network topology. Trilio exposes its public URL endpoint on public network and Trilio virtual appliances and data movers typically use either internal network or dedicated backup network for storing and retrieving backup images from backup store.
