[driver] check throwaway blocks builder's balance when starting (#17)

* [driver] check throwaway blocks builder's balance when starting

* test: fix workflow errors

* chore: update go.mod

Author: davidtaikocha

driver/driver.go

@@ -2,11 +2,14 @@ package driver
 
 import (
 	"context"
+	"fmt"
 	"sync"
 	"time"
 
 	"github.com/cenkalti/backoff/v4"
+	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/event"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/taikochain/taiko-client/pkg/rpc"
@@ -70,6 +73,15 @@ func initFromConfig(d *Driver, cfg *Config) (err error) {
 		return err
 	}
 
+	balance, err := d.rpc.L2.BalanceAt(d.ctx, crypto.PubkeyToAddress(cfg.ThrowawayBlocksBuilderPrivKey.PublicKey), nil)
+	if err != nil {
+		return fmt.Errorf("failed to get throwaway blocks builder balance: %w", err)
+	}
+
+	if balance.Cmp(common.Big0) == 0 {
+		return fmt.Errorf("throwaway blocks builder has no fund")
+	}
+
 	if d.l2ChainInserter, err = NewL2ChainInserter(
 		d.ctx,
 		d.rpc,

driver/driver_test.go

@@ -6,6 +6,7 @@ import (
 	"testing"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/log"
 	"github.com/stretchr/testify/require"
 	"github.com/taikochain/taiko-client/pkg/jwt"
@@ -26,14 +27,20 @@ func newTestDriver(t *testing.T) *Driver {
 	require.Nil(t, err)
 	require.NotEmpty(t, jwtSecret)
 
+	throwawayBlocksBuilderPrivKey, err := crypto.ToECDSA(
+		common.Hex2Bytes(os.Getenv("THROWAWAY_BLOCKS_BUILDER_PRIV_KEY")),
+	)
+	require.Nil(t, err)
+
 	d := new(Driver)
 
 	require.Nil(t, initFromConfig(d, &Config{
-		L1Endpoint:       os.Getenv("L1_NODE_ENDPOINT"),
-		L2Endpoint:       os.Getenv("L2_NODE_ENDPOINT"),
-		L2EngineEndpoint: os.Getenv("L2_NODE_ENGINE_ENDPOINT"),
-		TaikoL1Address:   common.HexToAddress(os.Getenv("TAIKO_L1_ADDRESS")),
-		JwtSecret:        string(jwtSecret),
+		L1Endpoint:                    os.Getenv("L1_NODE_ENDPOINT"),
+		L2Endpoint:                    os.Getenv("L2_NODE_ENDPOINT"),
+		L2EngineEndpoint:              os.Getenv("L2_NODE_ENGINE_ENDPOINT"),
+		TaikoL1Address:                common.HexToAddress(os.Getenv("TAIKO_L1_ADDRESS")),
+		ThrowawayBlocksBuilderPrivKey: throwawayBlocksBuilderPrivKey,
+		JwtSecret:                     string(jwtSecret),
 	}))
 
 	return d

go.mod

@@ -57,4 +57,4 @@ require (
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 
-replace github.com/ethereum/go-ethereum v1.10.25 => github.com/taikochain/taiko-geth v0.0.0-20221019033350-df3ec74ee5ab
+replace github.com/ethereum/go-ethereum v1.10.25 => github.com/taikochain/taiko-geth v0.0.0-20221021074701-4c4eb85222e2

go.sum

@@ -173,8 +173,8 @@ github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PK
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/syndtr/goleveldb v1.0.1-0.20220614013038-64ee5596c38a h1:1ur3QoCqvE5fl+nylMaIr9PVV1w343YRDtsy+Rwu7XI=
 github.com/syndtr/goleveldb v1.0.1-0.20220614013038-64ee5596c38a/go.mod h1:RRCYJbIwD5jmqPI9XoAFR0OcDxqUctll6zUj/+B4S48=
-github.com/taikochain/taiko-geth v0.0.0-20221019033350-df3ec74ee5ab h1:FlXVshOHKNE7Otj0FmvJCIcKoeHsFDIFpQ4SgCPtIe0=
-github.com/taikochain/taiko-geth v0.0.0-20221019033350-df3ec74ee5ab/go.mod h1:EYFyF19u3ezGLD4RqOkLq+ZCXzYbLoNDdZlMt7kyKFg=
+github.com/taikochain/taiko-geth v0.0.0-20221021074701-4c4eb85222e2 h1:EnwckffcSsTIeFZgOCR2ZHRCnOr1kfEjsjHYU9SLiD0=
+github.com/taikochain/taiko-geth v0.0.0-20221021074701-4c4eb85222e2/go.mod h1:EYFyF19u3ezGLD4RqOkLq+ZCXzYbLoNDdZlMt7kyKFg=
 github.com/thomaso-mirodin/intmath v0.0.0-20160323211736-5dc6d854e46e h1:cR8/SYRgyQCt5cNCMniB/ZScMkhI9nk8U5C7SbISXjo=
 github.com/thomaso-mirodin/intmath v0.0.0-20160323211736-5dc6d854e46e/go.mod h1:Tu4lItkATkonrYuvtVjG0/rhy15qrNGNTjPdaphtZ/8=
 github.com/tklauser/go-sysconf v0.3.10 h1:IJ1AZGZRWbY8T5Vfk04D9WOA5WSejdflXxP03OUqALw=

integration_test/entrypoint.sh

@@ -44,6 +44,7 @@ if [ "$RUN_TESTS" == "true"  ]; then
     L1_PROPOSER_PRIVATE_KEY=2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501200 \
     L2_SUGGESTED_FEE_RECIPIENT=0xDf08F82De32B8d460adbE8D72043E3a7e25A3B39 \
     L1_PROVER_PRIVATE_KEY=2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501200 \
+    THROWAWAY_BLOCKS_BUILDER_PRIV_KEY=2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501200 \
     JWT_SECRET=$DIR/testnet/jwt.hex \
         go test -v ./...
 else