Synchronization objects

Introduction

Astronetes offers the following synchronization objects to cover the infrastructure resiliency requirements.

Synchronization

Synchronizes the content of an asset to another one once. The operations required to perform the snapshot depend on the plugin. More information can be found in the Plugin section. Synchronizations are managed through the Synchronization Custom Resource Definition.

Synchronization Plan

Periodic snapshots with intervals set by the user. Periodicy is established as a cron expression. When the Synchronization Plan starts a new snapshot, it creates a new Synchronization resource akin to how a Kubernetes CronJob deploys a new Job whenever the cron expression indicates. Synchronization Plans are managed through the SynchronizationPlan Custom Resource Definition.

Live Synchronization

Live Synchronization replicates the contents of a source database to a destination one in near real time. This option is the most appropiate to establish a warm-standy, pilot light or active to active resiliency architecture.

This option minimises RPO and RTO due to the minimal amount of data lost before a disaster and the low overhead and wait time to restart operations in the new instance.

Live Synchronization is managed with the Custom Resource Definition LiveSynchronization.