fix(influxdb_bridge): avoid double-parsing write syntax during probe

Fixes https://emqx.atlassian.net/browse/EMQX-10771

apps/emqx_bridge_influxdb/src/emqx_bridge_influxdb.app.src

@@ -1,6 +1,6 @@
 {application, emqx_bridge_influxdb, [
     {description, "EMQX Enterprise InfluxDB Bridge"},
-    {vsn, "0.1.3"},
+    {vsn, "0.1.4"},
     {registered, []},
     {applications, [
         kernel,

apps/emqx_bridge_influxdb/src/emqx_bridge_influxdb.erl

@@ -168,6 +168,9 @@ write_syntax(format) ->
 write_syntax(_) ->
     undefined.
 
+to_influx_lines(Lines = [#{} | _]) ->
+    %% already parsed/converted (e.g.: bridge_probe, after hocon_tconf:check_plain)
+    Lines;
 to_influx_lines(RawLines) ->
     try
         influx_lines(str(RawLines), [])

apps/emqx_bridge_influxdb/src/emqx_bridge_influxdb_connector.erl

@@ -66,7 +66,9 @@ on_start(InstId, Config) ->
 on_stop(InstId, _State) ->
     case emqx_resource:get_allocated_resources(InstId) of
         #{?influx_client := Client} ->
-            influxdb:stop_client(Client);
+            Res = influxdb:stop_client(Client),
+            ?tp(influxdb_client_stopped, #{instance_id => InstId}),
+            Res;
         _ ->
             ok
     end.

apps/emqx_bridge_influxdb/test/emqx_bridge_influxdb_SUITE.erl

@@ -124,6 +124,9 @@ init_per_group(InfluxDBType, Config0) when
                 {influxdb_config, InfluxDBConfig},
                 {influxdb_config_string, ConfigString},
                 {ehttpc_pool_name, EHttpcPoolName},
+                {bridge_type, influxdb_api_v1},
+                {bridge_name, Name},
+                {bridge_config, InfluxDBConfig},
                 {influxdb_name, Name}
                 | Config
             ];
@@ -193,6 +196,9 @@ init_per_group(InfluxDBType, Config0) when
                 {influxdb_config, InfluxDBConfig},
                 {influxdb_config_string, ConfigString},
                 {ehttpc_pool_name, EHttpcPoolName},
+                {bridge_type, influxdb_api_v2},
+                {bridge_name, Name},
+                {bridge_config, InfluxDBConfig},
                 {influxdb_name, Name}
                 | Config
             ];
@@ -570,6 +576,10 @@ t_start_ok(Config) ->
     ),
     ok.
 
+t_start_stop(Config) ->
+    ok = emqx_bridge_testlib:t_start_stop(Config, influxdb_client_stopped),
+    ok.
+
 t_start_already_started(Config) ->
     Type = influxdb_type_bin(?config(influxdb_type, Config)),
     Name = ?config(influxdb_name, Config),

changes/ee/fix-11453.en.md

@@ -0,0 +1 @@
+Fixed an issue which would yield false negatives when testing the connectivity of InfluxDB bridges.