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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
Crossplane comes to my mind when thinking of using the GitOps way to provision infrastructures. Unfortunately, I think there isn't a Vault Crossplane provider at the moment but there's a terrajet project that allows you to generate Crossplane providers from Terraform providers. Might be a long shot and seems overly complex for a use-case like yours, but worthwhile if you plan to let ArgoCD manage everything.
You can run an Argocd workflow to apply terraform. Or use something like https://www.runatlantis.io/
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