Trigger host alerts for collected syslog messages (also to companions)

scripts/lua/modules/alert_definitions/alert_host_log.lua

@@ -0,0 +1,47 @@
+--
+-- (C) 2020 - ntop.org
+--
+
+local alert_keys = require "alert_keys"
+local alert_creators = require "alert_creators"
+
+local function formatHostLogAlert(ifid, alert, info)
+  local hostinfo = hostkey2hostinfo(alert.alert_entity_val)
+
+  return(i18n("alert_messages.host_log", {
+    host = info.host,
+    url = getHostUrl(hostinfo["host"], hostinfo["vlan"]),
+    facility = info.facility,
+    line = info.message,
+  }))
+end
+
+-- #######################################################
+
+-- @brief Prepare an alert table used to generate the alert
+-- @param alert_severity A severity as defined in `alert_consts.alert_severities`
+-- @param host The string with the name or ip address of the host
+-- @return A table with the alert built
+local function createHostLogAlert(subtype, severity, host, level, facility, message)
+  local built = {
+    alert_severity = severity,
+    alert_subtype = subtype,
+    alert_type_params = {
+       host = host,
+       facility = facility,
+       message = message,
+    },
+  }
+
+  return built
+end
+
+-- #######################################################
+
+return {
+  alert_key = alert_keys.ntopng.alert_host_log,
+  i18n_title = "alerts_dashboard.host_log",
+  i18n_description = formatHostLogAlert,
+  icon = "fa fa-file-text-o",
+  creator = createHostLogAlert,
+}