fix: add toolchain

rust-toolchain

@@ -0,0 +1,2 @@
+[toolchain]
+channel = "nightly-2024-05-12"

src/driver/driver.rs

@@ -0,0 +1,25 @@
+use crate::Dag;
+use anyhow::Result;
+
+pub trait NHandler {
+    //pause graph running for now
+    fn pause(&mut self) -> Result<()>;
+
+    //restart paused graph
+    fn restart(&mut self) -> Result<()>;
+
+    //stop resource about this graph
+    fn stop(&mut self) -> Result<()>;
+}
+
+pub trait PipelineController {
+    fn get_node(&self, name: &str) -> Option<Box<dyn NHandler>>;
+}
+
+pub trait Driver {
+    //deploy graph to cluster
+    fn deploy(&mut self, graph: &Dag) -> Result<Box<dyn PipelineController>>;
+
+    //clean all resource about this graph
+    fn clean(&mut self) -> Result<()>;
+}

src/driver/kube.rs

@@ -0,0 +1,14 @@
+use super::Driver;
+use crate::Dag;
+use anyhow::Result;
+pub struct KubeDriver {}
+
+impl Driver for KubeDriver {
+    fn deploy(&mut self, graph: &Dag) -> Result<Box<dyn super::PipelineController>> {
+        todo!()
+    }
+
+    fn clean(&mut self) -> Result<()> {
+        todo!()
+    }
+}

src/driver/mod.rs

@@ -0,0 +1,4 @@
+mod driver;
+pub mod kube;
+
+pub use driver::*;