feat(services): add faucet fee config

changelog.md

@@ -26,6 +26,7 @@
 - [#4477](https://github.com/ignite/cli/pull/4477) IBC v10 support
 - [#4166](https://github.com/ignite/cli/issues/4166) Migrate buf config files to v2
 - [#4494](https://github.com/ignite/cli/pull/4494) Automatic migrate the buf configs to v2
+- [#4513](https://github.com/ignite/cli/pull/4513) Allow to pass tx fees to faucet server
 
 ### Changes
 

ignite/config/chain/base/config.go

@@ -90,6 +90,9 @@ type Faucet struct {
 
 	// Port number for faucet server to listen at.
 	Port uint `yaml:"port,omitempty" doc:"Port number for the faucet server."`
+
+	// TxFee is the tx fee the faucet needs to pay for each transaction.
+	TxFee string `yaml:"tx_fee,omitempty" doc:"Tx fee the faucet needs to pay for each transaction."`
 }
 
 // Init overwrites sdk configurations with given values.

ignite/services/chain/faucet.go

@@ -108,6 +108,16 @@ func (c *Chain) Faucet(ctx context.Context) (cosmosfaucet.Faucet, error) {
 		faucetOptions = append(faucetOptions, cosmosfaucet.Coin(parsedCoin.Amount, amountMax, parsedCoin.Denom))
 	}
 
+	// parse fees to pass to the faucet as fees.
+	if fee := conf.Faucet.TxFee; fee != "" {
+		parsedFee, err := sdk.ParseCoinNormalized(fee)
+		if err != nil {
+			return cosmosfaucet.Faucet{}, errors.Errorf("%w: %s", err, fee)
+		}
+
+		faucetOptions = append(faucetOptions, cosmosfaucet.FeeAmount(parsedFee.Amount, parsedFee.Denom))
+	}
+
 	if conf.Faucet.RateLimitWindow != "" {
 		rateLimitWindow, err := time.ParseDuration(conf.Faucet.RateLimitWindow)
 		if err != nil {