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Verified Commit 99977f2f authored by Kristian Klausen's avatar Kristian Klausen :tada:
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grafana: Add simple dashboard for Nginx cache and HTTP/TLS version stats

It has three panels showing "Cache hit ratio", "HTTP version" and "TLS
version".

The metrics are generated with Loki recording rules (see the previous
three commits).
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1 merge request!865Add Loki recording rules and Grafana dashboard for tracking cache hit ratio, HTTP version and TLS version.
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