Add prometheus support

components/security_apps/prometheus/prometheus_ut/CMakeLists.txt

@@ -0,0 +1,8 @@
+link_directories(${BOOST_ROOT}/lib)
+link_directories(${BOOST_ROOT}/lib ${CMAKE_BINARY_DIR}/core/shmem_ipc)
+
+add_unit_test(
+    prometheus_ut
+    "prometheus_ut.cc"
+    "prometheus_comp;logging;agent_details;waap_clib;table;singleton;time_proxy;metric;event_is;connkey;http_transaction_data;generic_rulebase;generic_rulebase_evaluators;ip_utilities;intelligence_is_v2;-lboost_regex;messaging;"
+)

components/security_apps/prometheus/prometheus_ut/prometheus_ut.cc

@@ -0,0 +1,79 @@
+#include "prometheus_comp.h"
+
+#include <sstream>
+#include <fstream>
+#include <vector>
+
+#include "cmock.h"
+#include "cptest.h"
+#include "maybe_res.h"
+#include "debug.h"
+#include "config.h"
+#include "environment.h"
+#include "config_component.h"
+#include "agent_details.h"
+#include "time_proxy.h"
+#include "mock/mock_mainloop.h"
+#include "mock/mock_rest_api.h"
+#include "mock/mock_messaging.h"
+
+using namespace std;
+using namespace testing;
+
+USE_DEBUG_FLAG(D_PROMETHEUS);
+
+class PrometheusCompTest : public Test
+{
+public:
+    PrometheusCompTest()
+    {
+        EXPECT_CALL(mock_rest, mockRestCall(_, "declare-boolean-variable", _)).WillOnce(Return(false));
+        env.preload();
+        config.preload();
+        env.init();
+
+        EXPECT_CALL(
+            mock_rest,
+            addGetCall("metrics", _)
+        ).WillOnce(DoAll(SaveArg<1>(&get_metrics_func), Return(true)));
+
+        prometheus_comp.init();
+    }
+
+    ::Environment            env;
+    ConfigComponent          config;
+    PrometheusComp           prometheus_comp;
+    StrictMock<MockRestApi>  mock_rest;
+    StrictMock<MockMainLoop> mock_ml;
+    NiceMock<MockMessaging>  mock_messaging;
+    unique_ptr<ServerRest>   agent_uninstall;
+    function<string()>       get_metrics_func;
+    CPTestTempfile           status_file;
+    string                   registered_services_file_path;
+
+};
+
+TEST_F(PrometheusCompTest, checkAddingMetric)
+{
+    registered_services_file_path = cptestFnameInSrcDir(string("registered_services.json"));
+    setConfiguration(registered_services_file_path, "orchestration", "Orchestration registered services");
+    string metric_body = "{\n"
+        "   \"metrics\": [\n"
+        "       {\n"
+        "           \"metric_name\": \"watchdogProcessStartupEventsSum\",\n"
+        "           \"metric_type\": \"counter\",\n"
+        "           \"metric_description\": \"\",\n"
+        "           \"labels\": \"{method=\\\"post\\\",code=\\\"200\\\"}\",\n"
+        "           \"value\": \"1534\"\n"
+        "       }\n"
+        "   ]\n"
+        "}";
+
+    string message_body;
+    EXPECT_CALL(mock_messaging, sendSyncMessage(_, "/service-metrics", _, _, _))
+        .Times(2).WillRepeatedly(Return(HTTPResponse(HTTPStatusCode::HTTP_OK, metric_body)));
+
+    string metric_str = "# TYPE nano_service_restarts_counter counter\n"
+        "nano_service_restarts_counter{method=\"post\",code=\"200\"} 1534\n\n";
+    EXPECT_EQ(metric_str,  get_metrics_func());
+}

components/security_apps/prometheus/prometheus_ut/registered_services.json

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+{
+    "Registered Services": {
+        "cp-nano-orchestration": {
+            "Service name": "cp-nano-orchestration",
+            "Service ID": "cp-nano-orchestration",
+            "Service port": 7777,
+            "Relevant configs": [
+                "zones",
+                "triggers",
+                "rules",
+                "registration-data",
+                "parameters",
+                "orchestration",
+                "exceptions",
+                "agent-intelligence"
+            ]
+        },
+        "cp-nano-prometheus": {
+            "Service name": "cp-nano-prometheus",
+            "Service ID": "cp-nano-prometheus",
+            "Service port": 7465,
+            "Relevant configs": [
+                "zones",
+                "triggers",
+                "rules",
+                "parameters",
+                "exceptions",
+                "agent-intelligence"
+            ]
+        }
+    }
+}