is committer live metric (#300)

Author: nischitpra

internal/committer/poollatest.go

@@ -76,6 +76,10 @@ func pollLatest() error {
 		nextBlockNumber = expectedBlockNumber
 		metrics.CommitterNextBlockNumber.WithLabelValues(indexerName, chainIdStr).Set(float64(nextBlockNumber))
 
+		if config.Cfg.CommitterIsLive {
+			metrics.CommitterIsLive.WithLabelValues(indexerName, chainIdStr).Set(1)
+		}
+
 		if !config.Cfg.CommitterIsLive && latestBlock.Int64()-int64(nextBlockNumber) < 20 && !hasRightsized {
 			log.Debug().
 				Uint64("latest_block", latestBlock.Uint64()).

internal/metrics/metrics.go

@@ -94,4 +94,9 @@ var (
 		Name: "committer_rpc_retries_total",
 		Help: "The total number of RPC retries",
 	}, []string{"project_name", "chain_id"})
+
+	CommitterIsLive = promauto.NewGaugeVec(prometheus.GaugeOpts{
+		Name: "committer_is_live",
+		Help: "Whether the committer is live",
+	}, []string{"project_name", "chain_id"})
 )