Version 7.10 or higher is required. The recommended way to spin up an Elasticsearch / OpenSearch deployment is to use your cloud provider’s managed service, or Elastic Cloud itself.
If you are using Elastic Cloud, make sure to use a deployment in a network with low latency to your cluster.

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Create the ElasticSearch / OpenSearch settings

In this example, you’ll set up a configuration for the Broker of the formance-dev stack. This configuration will apply to all the modules of this stack. 
apiVersion: formance.com/v1beta1
kind: Settings
metadata:
  name: formance-dev-es
spec:
  key: elasticsearch.dsn
  stacks:
    - 'formance-dev'
  value: https://es.formance-system.svc:443?