things are cleaner

src/participant_network/prelaunch_data_generator/prelaunch_data_generator_launcher/prelaunch_data_generator_launcher.star

+IMAGE = "ethpandaops/ethereum-genesis-generator:latest"
+
+SERVICE_ID_PREFIX = "prelaunch-data-generator-"
+
+# We use Docker exec commands to run the commands we need, so we override the default
+ENTRYPOINT_ARGS = [
+	"sleep",
+	"999999",
+]
+
+# Launches a prelaunch data generator IMAGE, for use in various of the genesis generation
+def launch_prelaunch_data_generator(
+	files_artifact_mountpoints,
+):
+
+	service_config = get_service_config(files_artifact_mountpoints)
+
+	service_id = "%v%v".format(
+		SERVICE_ID_PREFIX,
+		time.now().unix,
+	)
+
+	add_service(service_id, service_config)
+
+	return service_id
+
+def get_service_config(
+	files_artifact_mountpoints,
+):
+	return struct(
+		# TODO used ports is supposed to be empty
+		used_ports = {},
+		container_image_name = IMAGE,
+		entry_point_args = ENTRYPOINT_ARGS,
+		files_artifact_mount_dirpaths = files_artifact_mountpoints,
+	)
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