Implement loading PGs from Consul (in theory)

osd_http.h

@@ -1,7 +1,16 @@
 #pragma once
 #include <string>
 #include <vector>
+#include <map>
+#include "json11/json11.hpp"
 
-int extract_port(std::string & host);
+struct http_response_t
+{
+    int status_code;
+    std::string status_line;
+    std::map<std::string, std::string> headers;
+    std::string body;
+};
 
+http_response_t *parse_http_response(std::string res);
 std::vector<std::string> getifaddr_list();