[Minor] Log errors in elastic plugin

src/plugins/lua/elastic.lua

@@ -78,10 +78,12 @@ local function elastic_send_data(task)
 
   local push_url = connect_prefix .. ip_addr .. '/'..es_index..'/_bulk'
   local bulk_json = table.concat(tbl, "\n")
-  local function http_index_data_callback(_, code, body, _)
+  local function http_index_data_callback(err, code, body, _)
     -- todo error handling we may store the rows it into redis and send it again late
     rspamd_logger.debugm(N, task, "After create data %1", body)
     if code ~= 200 then
+      rspamd_logger.infox(task, "cannot push data to elastic backend (%s): %s (%s)",
+            push_url, err, code)
       if settings['failover'] then
         local h = hash.create()
         h:update(bulk_json)
@@ -226,8 +228,8 @@ local function check_elastic_server(cfg, ev_base, _)
   local ip_addr = upstream:get_addr():to_string(true)
 
   local plugins_url = connect_prefix .. ip_addr .. '/_nodes/plugins'
-  local function http_callback(_, err, body, _)
-    if err == 200 then
+  local function http_callback(err, code, body, _)
+    if code == 200 then
       local parser = ucl.parser()
       local res,ucl_err = parser:parse_string(body)
       if not res then
@@ -252,7 +254,8 @@ local function check_elastic_server(cfg, ev_base, _)
         end
       end
     else
-      rspamd_logger.errx('cannot get plugins from %s: %s (%s)', plugins_url, err, body)
+      rspamd_logger.errx('cannot get plugins from %s: %s(%s) (%s)', plugins_url,
+          err, code, body)
       enabled = false
     end
   end
@@ -300,10 +303,10 @@ local function initial_setup(cfg, ev_base, worker)
         table.insert(tbl, '') -- For last \n
 
         local kibana_url = connect_prefix .. ip_addr ..'/.kibana/_bulk'
-        local function kibana_template_callback(_, code, body, _)
+        local function kibana_template_callback(err, code, body, _)
           if code ~= 200 then
-            rspamd_logger.errx('cannot put template to %s: %s (%s)', kibana_url,
-                code, body)
+            rspamd_logger.errx('cannot put template to %s: %s(%s) (%s)', kibana_url,
+                err, code, body)
             enabled = false
           else
             rspamd_logger.debugm(N, 'pushed kibana template: %s', body)
@@ -335,9 +338,10 @@ local function initial_setup(cfg, ev_base, worker)
   if enabled then
     -- create ingest pipeline
     local geoip_url = connect_prefix .. ip_addr ..'/_ingest/pipeline/rspamd-geoip'
-    local function geoip_cb(_, code, body, _)
+    local function geoip_cb(err, code, body, _)
       if code ~= 200 then
-        rspamd_logger.errx('cannot get data from %s: %s (%s)', geoip_url, code, body)
+        rspamd_logger.errx('cannot get data from %s: %s(%s) (%s)',
+            geoip_url, err, code, body)
         enabled = false
       end
     end
@@ -370,9 +374,10 @@ local function initial_setup(cfg, ev_base, worker)
     })
     -- create template mappings if not exist
     local template_url = connect_prefix .. ip_addr ..'/_template/rspamd'
-    local function http_template_put_callback(_, code, body, _)
+    local function http_template_put_callback(err, code, body, _)
       if code ~= 200 then
-        rspamd_logger.errx('cannot put template to %s: %s (%s)', template_url, code, body)
+        rspamd_logger.errx('cannot put template to %s: %s(%s) (%s)',
+            template_url, err, code, body)
         enabled = false
       else
         rspamd_logger.debugm(N, 'pushed rspamd template: %s', body)