feat: wallet exporter (#574)

* basic wallet exporter

* plumb into the constructor

* fix lint

* increasing bucket order

* make gen

* move wallet exporter config to subsystems

* missing file

* docs

* post-merge make gen

Author: magik6k

deps/config/doc_gen.go

@@ -411,6 +411,10 @@ type CurioSubsystemsConfig struct {
 	EnableRemoteProofs bool
 
 	RemoteProofMaxUploads int
+
+	// EnableWalletExporter enables the wallet exporter on the node. This will export wallet stats to prometheus.
+	// NOTE: THIS MUST BE ENABLED ONLY ON A SINGLE NODE IN THE CLUSTER TO BE USEFUL (Default: false)
+	EnableWalletExporter bool
 }
 type CurioFees struct {
 	// maxBatchFee = maxBase + maxPerSector * nSectors

deps/config/types.go

@@ -34,6 +34,7 @@ import (
 	"github.com/filecoin-project/curio/alertmanager/curioalerting"
 	"github.com/filecoin-project/curio/api"
 	"github.com/filecoin-project/curio/deps/config"
+	"github.com/filecoin-project/curio/deps/stats"
 	"github.com/filecoin-project/curio/harmony/harmonydb"
 	"github.com/filecoin-project/curio/lib/cachedreader"
 	"github.com/filecoin-project/curio/lib/curiochain"
@@ -352,6 +353,15 @@ Get it with: jq .PrivateKey ~/.lotus-miner/keystore/MF2XI2BNNJ3XILLQOJUXMYLUMU`,
 		}
 	}
 
+	if deps.Cfg.Subsystems.EnableWalletExporter {
+		spIDs := []address.Address{}
+		for maddr := range deps.Maddrs {
+			spIDs = append(spIDs, address.Address(maddr))
+		}
+
+		stats.StartWalletExporter(ctx, deps.DB, deps.Chain, spIDs)
+	}
+
 	if deps.Name == "" {
 		deps.Name = cctx.String("name")
 	}