Excluding traffic, it costs ~ $100 USD per month.
We are doing 10 second scrapes and currently have roughly 141k active time series. In Grafana Cloud it would cost...
15000 metrics for free. 126000/1000 * $8 = $882
Now here's the real kicker.. the pricing Grafana puts on their website are assuming 60 second scrape interval (1 data point/minute or DPM). If you are doing 6 DPM, that's $8 * 6 per 1000 time series!
So final bill.. drum rolls
126000/1000 * $8 * 6 = $6048
Yes. That's a 60x.
Now, sure, we don't get the scale, the backups, the SLA.. but we can live without it. And when Prometheus will start acting slowly, we will just bump it to t3.2xl, or spend some time and filter out some of the noisy metrics we might have around.
Btw, if you try to find any information about what is a "time series" or a "metric" on the Grafana's pricing page, good luck.
https://grafana.com/docs/grafana-cloud/metrics-control-usage...