tonysun83 commented on a change in pull request #3416:
URL: https://github.com/apache/couchdb/pull/3416#discussion_r612636568
##########
File path: src/couch_prometheus/src/couch_prometheus_http.erl
##########
@@ -0,0 +1,89 @@
+-module(couch_prometheus_http).
+
+-compile(tuple_calls).
+
+-export([
+ start_link/0,
+ handle_request/1
+]).
+
+-include("couch_prometheus.hrl").
+-include_lib("couch/include/couch_db.hrl").
+
+start_link() ->
+ IP = case config:get("prometheus", "bind_address", "any") of
+ "any" -> any;
+ Else -> Else
+ end,
+ Port = config:get("prometheus", "port"),
+ ok = couch_httpd:validate_bind_address(IP),
+
+ Options = [
+ {name, ?MODULE},
+ {loop, fun ?MODULE:handle_request/1},
+ {ip, IP},
+ {port, Port}
+ ],
+ case mochiweb_http:start(Options) of
+ {ok, Pid} ->
+ {ok, Pid};
+ {error, Reason} ->
+ io:format("Failure to start Mochiweb: ~s~n", [Reason]),
+ {error, Reason}
+ end.
+
+handle_request(MochiReq) ->
+ RawUri = MochiReq:get(raw_path),
+ {"/" ++ Path, _, _} = mochiweb_util:urlsplit_path(RawUri),
+ PathParts = string:tokens(Path, "/"), try
+ case PathParts of
+ ["_node", Node, "_prometheus"] ->
+ send_prometheus(MochiReq, Node);
+ _ ->
+ send_error(MochiReq, 404, <<"not_found">>, <<>>)
+ end
+ catch T:R ->
Review comment:
it's just a fail-safe to print out any unknown errors
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
