Add prometheus support

components/include/prometheus_comp.h

@@ -0,0 +1,30 @@
+#ifndef __PROMETHEUS_COMP_H__
+#define __PROMETHEUS_COMP_H__
+
+#include <memory>
+
+#include "component.h"
+#include "singleton.h"
+
+#include "i_rest_api.h"
+#include "i_messaging.h"
+#include "generic_metric.h"
+
+class PrometheusComp
+        :
+    public Component,
+    Singleton::Consume<I_RestApi>,
+    Singleton::Consume<I_Messaging>
+{
+public:
+    PrometheusComp();
+    ~PrometheusComp();
+
+    void init() override;
+
+private:
+    class Impl;
+    std::unique_ptr<Impl> pimpl;
+};
+
+#endif // __PROMETHEUS_COMP_H__