Account specific balance alert threshold about etherbalance

[e00E]

I agree that this is nice to have. The question is on what level this should happen. Currently etherbalance just retrieves balances and exports them as prometheus metrics. On the prometheus level we turn the balances into alerts. Currently this happens with one query that we have configured with a fixed cutoff.
I'd like to keep the alerting layer separate from etherbalance so I am wondering what a small change in etherbalance would be to facilitate that.
My first idea is that we could support a customizable "tag" for each address that we monitor. The tag is forwarded to the metrics. Then in the metrics we can have alerting rules based on the tag. Our current rule

(etherbalance_balance / (10^18)) < 4.0

could be turned into two rules

(etherbalance_balance{tag=solver} / (10^18)) < 4.0
(etherbalance_balance{tag=liquidity-bot} / (10^18)) < 0.5

[fleupold]

I think generally it makes sense to annotate the metrics more generously. We are already tagging the metrics with the address, right? So it would be possible even in the current state to filter this alert by address (I agree having it based on tag would be more convenient).