switching to sloat and credit system

updated proto
change all units to mib
calculating sloat ration while new app and sending resource

Cargo.lock

@@ -1,7 +1,6 @@
-# SPDX-License-Identifier: Apache-2.0
-
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+# SPDX-License-Identifier: Apache-2.0
 version = 4
 
 [[package]]
@@ -435,7 +434,7 @@ dependencies = [
 [[package]]
 name = "detee-shared"
 version = "0.1.0"
-source = "git+ssh://git@gitea.detee.cloud/testnet/proto?branch=surreal_brain_app#0b195b4589e4ec689af7ddca27dc051716ecee78"
+source = "git+ssh://git@gitea.detee.cloud/testnet/proto?branch=credits_app#01e93d3a2e4502c0e8e72026e8a1c55810961815"
 dependencies = [
  "bincode",
  "prost",

Cargo.toml

@@ -27,7 +27,7 @@ bs58 = "0.5.1"
 chrono = "0.4.39"
 sha2 = "0.10.8"
 
-detee-shared = { git = "ssh://git@gitea.detee.cloud/testnet/proto", branch = "surreal_brain_app" }
+detee-shared = { git = "ssh://git@gitea.detee.cloud/testnet/proto", branch = "credits_app" }
 # detee-shared = { path = "../detee-shared" }
 
 [build-dependencies]

src/config.rs

@@ -13,10 +13,10 @@ pub struct HostConfig {
     pub host_ip_address: String,
     pub operator_wallet: String,
     pub max_cores_per_app: u32,
-    pub max_memory_mb_per_app: u32,
+    pub max_memory_mib_per_app: u32,
     pub max_vcpu_reservation: u32,
-    pub max_mem_reservation_mb: u32,
+    pub max_mem_reservation_mib: u32,
-    pub max_disk_reservation_gb: u32,
+    pub max_disk_reservation_mib: u32,
     pub max_ports_per_app: u32,
     // price per unit per minute
     pub price: u64,

src/container.rs

@@ -23,14 +23,14 @@ pub fn deploy_enclave(
         enclave_path, hratls_pubkey
     );
 
-    let memory_mb = app_resource.memory_mb;
+    let memory_mib = app_resource.memory_mib;
     let vcpus = app_resource.vcpus;
     // TODO: docker limit disk space
-    // let disk_mb = app_resource.disk_mb;
+    // let disk_mib = app_resource.disk_mib;
-    // --storage-opt size={disk_mb}m
+    // --storage-opt size={disk_mib}m
 
     let docker_deploy_str = format!(
-        "docker run -d --restart unless-stopped --name {container_name_uuid} --memory={memory_mb}m --cpus={vcpus} \
+        "docker run -d --restart unless-stopped --name {container_name_uuid} --memory={memory_mib}m --cpus={vcpus} \
         -v {enclave_path}:/enclave_package --device /dev/sgx/enclave --device /dev/sgx/provision \
         {port_maping_string} noormohammedb/occlum-enclave:v1 {hratls_pubkey}"
     );

src/data.rs

@@ -23,8 +23,8 @@ use crate::global::USED_RESOURCES_PATH;
 pub struct HostResources {
     pub existing_apps: HashSet<String>,
     pub reserved_vcpus: u32,
-    pub reserved_memory_mb: u32,
+    pub reserved_memory_mib: u32,
-    pub reserved_disk_gb: u32,
+    pub reserved_disk_mib: u32,
     pub reserved_host_ports: HashSet<u16>,
 }
 
@@ -52,9 +52,9 @@ impl HostResources {
     }
 
     pub fn reserve_resources(&mut self, app: &App) -> Result<()> {
-        self.reserved_memory_mb += app.app_resource.memory_mb;
+        self.reserved_memory_mib += app.app_resource.memory_mib;
         self.reserved_vcpus += app.app_resource.vcpus;
-        self.reserved_disk_gb += app.app_resource.disk_size_gb;
+        self.reserved_disk_mib += app.app_resource.disk_size_mib;
 
         for (port, _) in app.mapped_ports.iter() {
             self.reserved_host_ports.insert(*port);
@@ -65,9 +65,9 @@ impl HostResources {
     }
 
     pub fn un_reserve_resources(&mut self, app: &App) -> Result<()> {
-        self.reserved_memory_mb -= app.app_resource.memory_mb;
+        self.reserved_memory_mib -= app.app_resource.memory_mib;
         self.reserved_vcpus -= app.app_resource.vcpus;
-        self.reserved_disk_gb -= app.app_resource.disk_size_gb;
+        self.reserved_disk_mib -= app.app_resource.disk_size_mib;
 
         for (port, _) in app.mapped_ports.iter() {
             self.reserved_host_ports.remove(port);
@@ -147,7 +147,7 @@ impl App {
             return Err(anyhow!("too many vcpus for app"));
         }
 
-        if host_config.max_memory_mb_per_app < new_app_req.resource.memory_mb {
+        if host_config.max_memory_mib_per_app < new_app_req.resource.memory_mib {
             return Err(anyhow!("too much memory for app"));
         }
 
@@ -159,14 +159,14 @@ impl App {
         {
             return Err(anyhow!("vcpus not available"));
         }
-        if host_config.max_mem_reservation_mb
+        if host_config.max_mem_reservation_mib
             < host_resource
-                .reserved_memory_mb
+                .reserved_memory_mib
-                .saturating_add(new_app_req.resource.memory_mb)
+                .saturating_add(new_app_req.resource.memory_mib)
         {
             return Err(anyhow!("not enough memory available"));
         }
-        if new_app_req.resource.disk_size_gb < 1 {
+        if new_app_req.resource.disk_size_mib < 1 {
             return Err(anyhow!("disk too small"));
         }
 

src/main.rs

@@ -102,6 +102,29 @@ impl AppHandler {
     }
 
     async fn handle_new_app_req(&mut self, new_app_req: AppDeployConfig) {
+        let (avail_memory_per_cpu, avail_disk_per_cpu) = self.slot_ratios();
+        let req_resource = &new_app_req.resource;
+        let req_memory_per_cpu = req_resource.memory_mib / req_resource.vcpus;
+        let req_disk_per_cpu = req_resource.disk_size_mib / req_resource.vcpus;
+        if !within_10_percent(avail_memory_per_cpu, req_memory_per_cpu as usize)
+            || !within_10_percent(avail_disk_per_cpu, req_disk_per_cpu as usize)
+        {
+            warn!("Refusing to create app due to unbalanced resources: {new_app_req:?}");
+            let _ = self
+                .sender
+                .send(
+                    NewAppRes {
+                        uuid: new_app_req.uuid,
+                        error: format!("Unbalanced hardware resources."),
+                        ..Default::default()
+                    }
+                    .into(),
+                )
+                .await;
+            return;
+        };
+        log::debug!("Processing new app request: {new_app_req:?}");
+
         let uuid = new_app_req.uuid.clone();
         let app_result = App::new(new_app_req, &self.host_config, &mut self.host_resource).await;
 
@@ -146,6 +169,25 @@ impl AppHandler {
         Ok(())
     }
 
+    /// returns Memory per vCPU and Disk per vCPU ratio
+    fn slot_ratios(&self) -> (usize, usize) {
+        let total_storage_mib = self.host_config.max_disk_reservation_mib as usize;
+        let available_cpus =
+            self.host_config
+                .max_vcpu_reservation
+                .saturating_sub(self.host_resource.reserved_vcpus) as usize;
+
+        let available_mem =
+            self.host_config
+                .max_mem_reservation_mib
+                .saturating_sub(self.host_resource.reserved_memory_mib) as usize;
+
+        let memory_per_cpu = available_mem / available_cpus;
+        let disk_per_cpu = total_storage_mib / available_cpus;
+
+        (memory_per_cpu, disk_per_cpu)
+    }
+
     async fn send_node_resources(&mut self) {
         let host_config = self.host_config.clone();
         let host_resource = self.host_resource.clone();
@@ -155,16 +197,18 @@ impl AppHandler {
             (host_config.public_port_range.len() - host_resource.reserved_host_ports.len()) as u32;
 
         let avail_vcpus = host_config.max_vcpu_reservation - host_resource.reserved_vcpus;
-        let avail_memory_mb = host_config.max_mem_reservation_mb - host_resource.reserved_memory_mb;
+        let avail_memory_mib =
-        let avail_storage_gb = host_config.max_disk_reservation_gb - host_resource.reserved_disk_gb;
+            host_config.max_mem_reservation_mib - host_resource.reserved_memory_mib;
+        let avail_storage_mib =
+            host_config.max_disk_reservation_mib - host_resource.reserved_disk_mib;
         let max_ports_per_app = host_config.max_ports_per_app;
 
         let resource_update = AppNodeResources {
             node_pubkey,
             avail_no_of_port,
             avail_vcpus,
-            avail_memory_mb,
+            avail_memory_mib,
-            avail_storage_gb,
+            avail_storage_mib,
             max_ports_per_app,
         };
 
@@ -264,3 +308,9 @@ async fn download_and_replace_binary(network: &str) -> Result<()> {
     }
     Ok(())
 }
+
+fn within_10_percent(a: usize, b: usize) -> bool {
+    let diff = a.abs_diff(b); // u32
+    let reference = a.max(b); // the larger of the two
+    diff * 10 <= reference
+}