add(n9e): add all in one

n9e/compose-mysql/etc-categraf/input.net/net.toml

@@ -0,0 +1,8 @@
+# # collect interval
+# interval = 15
+
+# # whether collect protocol stats on Linux
+# collect_protocol_stats = false
+
+# # setting interfaces will tell categraf to gather these explicit interfaces
+# interfaces = ["eth0"]