update: rules provider configuration

Signed-off-by: Lorenzo Fontana <lo@linux.com>

falco.yaml

@@ -221,3 +221,8 @@ grpc_output:
 # if they don't need to change the default Falco behavior
 #extensions:
 #  - myextension.so
+
+# Rules provider
+# Specify a non-default provider.
+# Default value is "internal"
+rules_provider: internal

userspace/engine/falco_engine.cpp

@@ -75,7 +75,6 @@ falco_engine::falco_engine(const falco_engine &orig_engine)
 	  m_sampling_ratio(1), m_sampling_multiplier(0),
 	  m_replace_container_info(false)
 {
-	std::cout << "copy ctor" << std::endl;
 	luaopen_lpeg(m_ls);
 	luaopen_yaml(m_ls);
 

userspace/falco/configuration.cpp

@@ -137,8 +137,11 @@ void falco_configuration::init(string conf_filename, list<string> &cmdline_optio
 		m_outputs.push_back(http_output);
 	}
 
+	// extension related configuration
 	m_config->get_sequence<list<string>>(m_extensions_filenames , string("extensions"));
+	m_rules_provider = m_config->get_scalar<string>("rules_provider", "internal");
 
+	// gRPC related configuration
 	m_grpc_enabled = m_config->get_scalar<bool>("grpc", "enabled", false);
 	m_grpc_bind_address = m_config->get_scalar<string>("grpc", "bind_address", "0.0.0.0:5060");
 	m_grpc_threadiness = m_config->get_scalar<uint32_t>("grpc", "threadiness", 0);

userspace/falco/configuration.h

@@ -223,6 +223,7 @@ public:
 	double m_syscall_evt_drop_max_burst;
 
 	std::list<std::string> m_extensions_filenames;
+	std::string m_rules_provider;
 
 	// Only used for testing
 	bool m_syscall_evt_simulate_drops;

userspace/falco/falco.cpp

@@ -977,7 +977,7 @@ int falco_init(int argc, char **argv)
 		watchrules_thread = std::thread([&] {
 			libhawk::lifecycle::watch_rules(
 				(hawk_watch_rules_cb)rules_cb,
-				"hawk_example_go");
+				config.m_rules_provider);
 		});
 
 		falco_logger::log(LOG_INFO, "DOPO\n");