Merge pull request #1658 from rabbitmq/lrb-add-hostname-syslog-support

Add support for syslog server hostname

Author: lukebakken

Makefile

@@ -136,7 +136,7 @@ BUILD_DEPS = rabbitmq_cli
 DEPS = ranch syslog lager rabbit_common
 TEST_DEPS = rabbitmq_ct_helpers rabbitmq_ct_client_helpers amqp_client meck proper
 
-dep_syslog = git https://github.com/schlagert/syslog 3.4.2
+dep_syslog = git https://github.com/schlagert/syslog 3.4.3
 
 define usage_xml_to_erl
 $(subst __,_,$(patsubst $(DOCS_DIR)/rabbitmq%.1.xml, src/rabbit_%_usage.erl, $(subst -,_,$(1))))

priv/schema/rabbit.schema

@@ -1067,6 +1067,7 @@ end}.
 {mapping, "log.syslog", "rabbit.log.syslog.enabled", [
     {datatype, {enum, [true, false]}}
 ]}.
+
 {mapping, "log.syslog.level", "rabbit.log.syslog.level", [
     {datatype, {enum, [debug, info, notice, warning, error, critical, alert, emergency, none]}}
 ]}.
@@ -1091,6 +1092,26 @@ end}.
     {validators, ["is_ip"]}
 ]}.
 
+{mapping, "log.syslog.host", "syslog.dest_host", [
+    {datatype, string}
+]}.
+
+{translation, "syslog.dest_host",
+fun(Conf) ->
+    case cuttlefish:conf_get("log.syslog", Conf) of
+        true ->
+            case cuttlefish:conf_get("log.syslog.ip", Conf, undefined) of
+                undefined ->
+                    % If log.syslog.ip is not set, then this must be set
+                    cuttlefish:conf_get("log.syslog.host", Conf);
+                IpAddr ->
+                    IpAddr
+            end;
+        _ ->
+            cuttlefish:invalid("log.syslog must be set to true to set log.syslog.host or log.syslog.ip")
+    end
+end}.
+
 {mapping, "log.syslog.port", "syslog.dest_port", [
     {datatype, integer}
 ]}.

test/config_schema_SUITE_data/rabbit.snippets

@@ -554,10 +554,12 @@ credential_validator.regexp = ^abc\\d+",
   {log_syslog_tcp,
    "log.syslog = true
     log.syslog.transport = tcp
-    log.syslog.protocol = rfc5424",
+    log.syslog.protocol = rfc5424
+    log.syslog.host = syslog.my-network.com",
    [
     {rabbit,[{log, [{syslog, [{enabled, true}]}]}]},
-    {syslog, [{protocol, {rfc5424, tcp}}]}
+    {syslog, [{protocol, {rfc5424, tcp}},
+              {dest_host, "syslog.my-network.com"}]}
    ],
    []},
   {log_syslog_udp_default,