promtehsus launcher is better

main.star

@@ -6,6 +6,7 @@ load("github.com/kurtosis-tech/eth2-module/src/participant_network/prelaunch_dat
 
 load("github.com/kurtosis-tech/eth2-module/src/transaction_spammer/transaction_spammer.star", "launch_transaction_spammer")
 load("github.com/kurtosis-tech/eth2-module/src/forkmon/forkmon_launcher.star", "launch_forkmon")
+load("github.com/kurtosis-tech/eth2-module/src/prometheus/prometheus_launcher.star", "launch_prometheus")
 
 module_io = import_types("github.com/kurtosis-tech/eth2-module/types.proto")
 
@@ -48,6 +49,13 @@ def main(input_args):
 	launch_forkmon(forkmon_config_template, all_cl_client_contexts, cl_gensis_timestamp, network_params.seconds_per_slot, network_params.slots_per_epoch)
 	print("Succesfully launched forkmon")
 
+	print("Launching prometheus...")
+	prometheus_private_url = launch_prometheus(
+		prometheus_config_template,
+		all_cl_client_contexts,
+	)
+	print("Successfully launched Prometheus")
+
 
 	grafana_info = module_io.GrafanaInfo(
 		dashboard_path = "dummy_path",

src/prometheus/prometheus_launcher.star

@@ -21,7 +21,7 @@ USED_PORTS = {
 def launch_prometheus(config_template, cl_client_contexts):
 	all_cl_nodes_metrics_info = []
 	for client in cl_client_contexts:
-		all_cl_nodes_metrics_info.append(client.cl_nodes_metrics_info)
+		all_cl_nodes_metrics_info.extend(client.cl_nodes_metrics_info)
 
 	template_data = new_config_template_data(all_cl_nodes_metrics_info)
 	template_data_json = json.encode(template_data)