refactor: extract plugins crate (#2487)

* chore: move frontend plugins fn

* chore: move datanode plugins to fn

* chore: add opt plugins

* chore: add plugins to meta-srv

* chore: setup meta plugins, wait for router extension

* chore: try use configurator for grpc too

* chore: minor fix fmt

* chore: minor fix fmt

* chore: add start meta_srv for hook

* chore: merge develop

* chore: minor fix

* chore: replace Arc<Plugins> with PluginsRef

* chore: fix header

* chore: remove empty file

* chore: modify comments

* chore: remove PluginsRef type alias

* chore: remove `OptPlugins`

src/plugins/src/datanode.rs

@@ -0,0 +1,25 @@
+// Copyright 2023 Greptime Team
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use common_base::Plugins;
+use datanode::config::DatanodeOptions;
+use datanode::error::Result;
+
+pub async fn setup_datanode_plugins(_opts: &mut DatanodeOptions) -> Result<Plugins> {
+    Ok(Plugins::new())
+}
+
+pub async fn start_datanode_plugins(_plugins: Plugins) -> Result<()> {
+    Ok(())
+}

src/plugins/src/frontend.rs

@@ -0,0 +1,35 @@
+// Copyright 2023 Greptime Team
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use auth::UserProviderRef;
+use common_base::Plugins;
+use frontend::error::{IllegalAuthConfigSnafu, Result};
+use frontend::frontend::FrontendOptions;
+use snafu::ResultExt;
+
+pub async fn setup_frontend_plugins(opts: &mut FrontendOptions) -> Result<Plugins> {
+    let plugins = Plugins::new();
+
+    if let Some(user_provider) = opts.user_provider.as_ref() {
+        let provider =
+            auth::user_provider_from_option(user_provider).context(IllegalAuthConfigSnafu)?;
+        plugins.insert::<UserProviderRef>(provider);
+    }
+
+    Ok(plugins)
+}
+
+pub async fn start_frontend_plugins(_plugins: Plugins) -> Result<()> {
+    Ok(())
+}

src/plugins/src/lib.rs

@@ -0,0 +1,21 @@
+// Copyright 2023 Greptime Team
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+mod datanode;
+mod frontend;
+mod meta_srv;
+
+pub use datanode::{setup_datanode_plugins, start_datanode_plugins};
+pub use frontend::{setup_frontend_plugins, start_frontend_plugins};
+pub use meta_srv::{setup_meta_srv_plugins, start_meta_srv_plugins};

src/plugins/src/meta_srv.rs

@@ -0,0 +1,25 @@
+// Copyright 2023 Greptime Team
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use common_base::Plugins;
+use meta_srv::error::Result;
+use meta_srv::metasrv::MetaSrvOptions;
+
+pub async fn setup_meta_srv_plugins(_opts: &mut MetaSrvOptions) -> Result<Plugins> {
+    Ok(Plugins::new())
+}
+
+pub async fn start_meta_srv_plugins(_plugins: Plugins) -> Result<()> {
+    Ok(())
+}