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Decide if we want to stick with etcd datastore
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Calico stores the data about the operational and configuration state of your cluster in a central datastore. If the datastore is unavailable your Calico network continues operating, but cannot be updated (no new pods can be networked, no policy changes can be applied, etc.).

Calico has two datastore drivers you can choose from

  • etcd - for direct connection to an etcd cluster
  • Kubernetes - for connection to a Kubernetes API server

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We are currently using etcd datastore, but that was the only available datastore in the past. So we might want to revisit the "decision" as we now have the chance to do so easily.

Event Timeline

JMeybohm created this task.Oct 30 2020, 5:39 PM
Restricted Application added a subscriber: Aklapper. · View Herald TranscriptOct 30 2020, 5:39 PM

Decide decide if we are going to be staying with direct access to etcd (version 3?) or try and switch to the kubernetes APIs

The big issues we currently have with the etcd backed datastore is that the information in there is not tracked anyway. It is backed up but fully unsearchable. So we definitely want to at least test using the API.