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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.
The combination of the tools I mention at the end would likely satisfy all of your needs. kustomize-controller, which is the part of flux that deploys your application, has the ability to check if the deployment's health check failed. I assume it also has the ability to rollback (or at least it easily might in the future). it also tracks the state of the applied objects so that it can delete objects that are not used anymore.
NOTE:
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Hence, a higher number means a more popular project.