chore: use counter prometeus (backport #735) (#741)

<hr>This is an automatic backport of pull request #735 done by
[Mergify](https://mergify.com).

Co-authored-by: Lazar <[email protected]>

Author: mergify[bot]

CHANGELOG.md

@@ -45,6 +45,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 * [#730](https://github.com/babylonlabs-io/finality-provider/pull/730) chore: bump babylon to `v4.0.0-rc.3`
 * [#732](https://github.com/babylonlabs-io/finality-provider/pull/732) feat: add version metric
 * [#734](https://github.com/babylonlabs-io/finality-provider/pull/734) chore: rm unused cfg val
+* [#735](https://github.com/babylonlabs-io/finality-provider/pull/735) chore: use counter prometeus
 
 ## v2.0.0-rc.5
 

metrics/fp_collectors.go

@@ -28,8 +28,8 @@ type FpMetrics struct {
 	fpLastProcessedHeight           *prometheus.GaugeVec
 	fpLastCommittedRandomnessHeight *prometheus.GaugeVec
 	fpTotalBlocksWithoutVotingPower *prometheus.CounterVec
-	fpTotalVotedBlocks              *prometheus.GaugeVec
-	fpTotalCommittedRandomness      *prometheus.GaugeVec
+	fpTotalVotedBlocks              *prometheus.CounterVec
+	fpTotalCommittedRandomness      *prometheus.CounterVec
 	fpTotalFailedVotes              *prometheus.CounterVec
 	fpTotalFailedRandomness         *prometheus.CounterVec
 	// time keeper
@@ -110,15 +110,15 @@ func NewFpMetrics() *FpMetrics {
 				},
 				[]string{"fp_btc_pk_hex"},
 			),
-			fpTotalVotedBlocks: prometheus.NewGaugeVec(
-				prometheus.GaugeOpts{
+			fpTotalVotedBlocks: prometheus.NewCounterVec(
+				prometheus.CounterOpts{
 					Name: "fp_total_voted_blocks",
 					Help: "The total number of blocks voted by a finality provider.",
 				},
 				[]string{"fp_btc_pk_hex"},
 			),
-			fpTotalCommittedRandomness: prometheus.NewGaugeVec(
-				prometheus.GaugeOpts{
+			fpTotalCommittedRandomness: prometheus.NewCounterVec(
+				prometheus.CounterOpts{
 					Name: "fp_total_committed_randomness",
 					Help: "The total number of randomness commitments by a finality provider.",
 				},