basic API to be used in swarm mode

confs/global/api.conf

@@ -0,0 +1,20 @@
+rewrite_by_lua_block {
+	
+	local api = require "api"
+
+	if api.is_api_call() then
+		ngx.header.content_type = 'text/plain'
+		if api.do_api_call() then
+			ngx.log(ngx.WARN, "[API] API call " .. ngx.var.request_uri .. " successfull from " .. ngx.var.remote_addr)
+			ngx.say("ok")
+		else
+			ngx.log(ngx.WARN, "[API] API call " .. ngx.var.request_uri .. " failed from " .. ngx.var.remote_addr)
+			ngx.say("ko")
+		end
+
+		ngx.exit(ngx.HTTP_OK)
+
+	end
+
+	ngx.exit(ngx.OK)
+}

confs/global/nginx.conf

@@ -111,4 +111,7 @@ http {
 
 	# server config(s)
 	%INCLUDE_SERVER%
+
+	# API
+	%USE_API%
 }