Fix: retry contract deployment

ethergo/deployer/registry.go

@@ -2,12 +2,15 @@ package deployer
 
 import (
 	"context"
+	"sync"
+	"testing"
+	"time"
+
 	"github.com/neverlee/keymutex"
 	"github.com/stretchr/testify/require"
+	"github.com/synapsecns/sanguine/core/retry"
 	"github.com/synapsecns/sanguine/ethergo/backends"
 	"github.com/synapsecns/sanguine/ethergo/contracts"
-	"sync"
-	"testing"
 )
 
 // ContractDeployer is a contract deployer for a single contract type.
@@ -151,15 +154,24 @@ func (c *contractRegistryImpl) Deploy(ctx context.Context, contractType contract
 	deploymentHandle := c.deployers[contractType.ID()]
 	c.structMux.RUnlock()
 
-	deployedContract, err := deploymentHandle.Deploy(ctx)
+	var deployedContract contracts.DeployedContract
+	err := retry.WithBackoff(ctx, func(ctx context.Context) (err error) {
+		deployedContract, err = deploymentHandle.Deploy(ctx)
+		if err != nil {
+			return
+		}
+		c.backend.WaitForConfirmation(ctx, deployedContract.DeployTx())
+		err = c.backend.VerifyContract(contractType, deployedContract)
+		if err != nil {
+			return
+		}
+		logger.Debugf("added contract %s of types %s in tx %s on chain id %s", deployedContract.Address(), contractType.Name(), deployedContract.DeployTx().Hash().String(), deployedContract.ChainID().String())
+		return
+	}, retry.WithMax(120*time.Second))
 	require.Nil(c.tb, err)
-
-	c.backend.WaitForConfirmation(ctx, deployedContract.DeployTx())
-	err = c.backend.VerifyContract(contractType, deployedContract)
 	if err != nil {
 		logger.Warnf("got error %s while verifying contract, skipping", err)
 	}
-	logger.Debugf("added contract %s of types %s in tx %s on chain id %s", deployedContract.Address(), contractType.Name(), deployedContract.DeployTx().Hash().String(), deployedContract.ChainID().String())
 
 	return deployedContract
 }