fix(machine_boot): inject connector/bridge apps as dependencies to `emqx_connector` app

Fixes https://emqx.atlassian.net/browse/EMQX-11771

For the same reasons as we inject `emqx_bridge_*` applications as dependencies to
`emqx_bridge` when starting the node.  Already configured connectors are started when
`emqx_connector` application starts, and may lead to crashes and noise in the logs.  One
example is to configure a mongodb bridge and restart the node.

apps/emqx_bridge_es/src/emqx_bridge_es.app.src

@@ -10,8 +10,7 @@
     {applications, [
         kernel,
         stdlib,
-        emqx_resource,
-        emqx_connector
+        emqx_resource
     ]},
     {env, []},
     {licenses, ["Business Source License 1.1"]},

apps/emqx_bridge_http/src/emqx_bridge_http.app.src

@@ -2,7 +2,7 @@
     {description, "EMQX HTTP Bridge and Connector Application"},
     {vsn, "0.2.2"},
     {registered, []},
-    {applications, [kernel, stdlib, emqx_connector, emqx_resource, ehttpc]},
+    {applications, [kernel, stdlib, emqx_resource, ehttpc]},
     {env, [{emqx_action_info_modules, [emqx_bridge_http_action_info]}]},
     {modules, []},
     {links, []}

apps/emqx_bridge_iotdb/src/emqx_bridge_iotdb.app.src

@@ -10,9 +10,7 @@
     {applications, [
         kernel,
         stdlib,
-        emqx_resource,
-        %% for module emqx_connector_http
-        emqx_connector
+        emqx_resource
     ]},
     {env, []},
     {licenses, ["Business Source License 1.1"]},

apps/emqx_bridge_mongodb/src/emqx_bridge_mongodb.app.src

@@ -5,7 +5,6 @@
     {applications, [
         kernel,
         stdlib,
-        emqx_connector,
         emqx_resource,
         emqx_mongodb
     ]},

apps/emqx_bridge_mysql/src/emqx_bridge_mysql.app.src

@@ -5,7 +5,6 @@
     {applications, [
         kernel,
         stdlib,
-        emqx_connector,
         emqx_resource,
         emqx_mysql
     ]},

apps/emqx_bridge_redis/src/emqx_bridge_redis.app.src

@@ -5,7 +5,6 @@
     {applications, [
         kernel,
         stdlib,
-        emqx_connector,
         emqx_resource,
         emqx_redis
     ]},

apps/emqx_machine/src/emqx_machine_boot.erl

@@ -178,6 +178,11 @@ app_deps(App, RebootApps) ->
 %% `emqx_bridge' is special in that it needs all the bridges apps to
 %% be started before it, so that, when it loads the bridges from
 %% configuration, the bridge app and its dependencies need to be up.
+%%
+%% `emqx_connector' also needs to start all connector dependencies for the same reason.
+%% Since standalone apps like `emqx_mongodb' are already dependencies of `emqx_bridge_*'
+%% apps, we may apply the same tactic for `emqx_connector' and inject individual bridges
+%% as its dependencies.
 inject_bridge_deps(RebootAppDeps) ->
     BridgeApps = [
         App
@@ -188,6 +193,8 @@ inject_bridge_deps(RebootAppDeps) ->
         fun
             ({emqx_bridge, Deps0}) when is_list(Deps0) ->
                 {emqx_bridge, Deps0 ++ BridgeApps};
+            ({emqx_connector, Deps0}) when is_list(Deps0) ->
+                {emqx_connector, Deps0 ++ BridgeApps};
             (App) ->
                 App
         end,

apps/emqx_management/test/emqx_mgmt_api_configs_SUITE.erl

@@ -392,7 +392,7 @@ t_create_webhook_v1_bridges_api({'init', Config}) ->
     lists:foreach(
         fun(App) ->
             _ = application:stop(App),
-            {ok, [App]} = application:ensure_all_started(App)
+            {ok, _} = application:ensure_all_started(App)
         end,
         [emqx_connector, emqx_bridge]
     ),

apps/emqx_mongodb/src/emqx_mongodb.app.src

@@ -1,12 +1,11 @@
 {application, emqx_mongodb, [
     {description, "EMQX MongoDB Connector"},
-    {vsn, "0.1.4"},
+    {vsn, "0.1.5"},
     {registered, []},
     {applications, [
         kernel,
         stdlib,
         mongodb,
-        emqx_connector,
         emqx_resource
     ]},
     {env, []},

apps/emqx_mysql/src/emqx_mysql.app.src

@@ -1,12 +1,11 @@
 {application, emqx_mysql, [
     {description, "EMQX MySQL Database Connector"},
-    {vsn, "0.1.6"},
+    {vsn, "0.1.7"},
     {registered, []},
     {applications, [
         kernel,
         stdlib,
         mysql,
-        emqx_connector,
         emqx_resource
     ]},
     {env, []},

apps/emqx_postgresql/src/emqx_postgresql.app.src

@@ -1,12 +1,11 @@
 {application, emqx_postgresql, [
     {description, "EMQX PostgreSQL Database Connector"},
-    {vsn, "0.1.1"},
+    {vsn, "0.1.2"},
     {registered, []},
     {applications, [
         kernel,
         stdlib,
         epgsql,
-        emqx_connector,
         emqx_resource
     ]},
     {env, []},

apps/emqx_redis/src/emqx_redis.app.src

@@ -1,13 +1,12 @@
 {application, emqx_redis, [
     {description, "EMQX Redis Database Connector"},
-    {vsn, "0.1.4"},
+    {vsn, "0.1.5"},
     {registered, []},
     {applications, [
         kernel,
         stdlib,
         eredis,
         eredis_cluster,
-        emqx_connector,
         emqx_resource
     ]},
     {env, []},

changes/ce/fix-12359.en.md

@@ -0,0 +1 @@
+Fixed an issue that could lead to error logs when restarting a node configured with some types of data bridges.  Said bridges could also start in a failed state, requiring manual restart.