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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.
I am not sure what u/klysium used but you could always go for https://github.com/kelseyhightower/kubernetes-the-hard-way - It's most likely what they are referring to
I also used minikube, k3s, and Lens (kubernetes ide)
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