Fix database channel close error

src/bin/brain.rs

@@ -1,3 +1,5 @@
+use std::sync::Arc;
+
 use detee_shared::general_proto::brain_general_cli_server::BrainGeneralCliServer;
 use detee_shared::vm_proto::brain_vm_cli_server::BrainVmCliServer;
 use detee_shared::vm_proto::brain_vm_daemon_server::BrainVmDaemonServer;
@@ -7,17 +9,22 @@ use surreal_brain::constants::{
 use surreal_brain::db;
 use surreal_brain::grpc::BrainVmCliForReal;
 use surreal_brain::grpc::{BrainGeneralCliForReal, BrainVmDaemonForReal};
+use surreal_brain::BrainState;
 use tonic::transport::{Identity, Server, ServerTlsConfig};
 
 #[tokio::main]
 async fn main() {
     env_logger::builder().filter_level(log::LevelFilter::Debug).init();
-    db::init(DB_ADDRESS, DB_NS, DB_NAME).await.unwrap();
+
+    let db_connection = db::db_connection(DB_ADDRESS, DB_NS, DB_NAME).await.unwrap();
+    let state = Arc::new(BrainState { db_connection });
+
     let addr = BRAIN_GRPC_ADDR.parse().unwrap();
 
-    let snp_daemon_server = BrainVmDaemonServer::new(BrainVmDaemonForReal {});
+    let snp_daemon_server = BrainVmDaemonServer::new(BrainVmDaemonForReal::new(state.clone()));
-    let snp_cli_server = BrainVmCliServer::new(BrainVmCliForReal {});
+    let snp_cli_server = BrainVmCliServer::new(BrainVmCliForReal::new(state.clone()));
-    let general_service_server = BrainGeneralCliServer::new(BrainGeneralCliForReal {});
+    let general_service_server =
+        BrainGeneralCliServer::new(BrainGeneralCliForReal::new(state.clone()));
 
     let cert = std::fs::read_to_string(CERT_PATH).unwrap();
     let key = std::fs::read_to_string(CERT_KEY_PATH).unwrap();

src/bin/migration0.rs

@@ -2,7 +2,6 @@
 // and dangling impls from the model
 use std::error::Error;
 use surreal_brain::constants::{DB_ADDRESS, DB_NAME, DB_NS};
-use surreal_brain::db::init;
 use surreal_brain::{db, old_brain};
 
 #[tokio::main]
@@ -10,9 +9,9 @@ async fn main() -> Result<(), Box<dyn Error>> {
     let old_brain_data = old_brain::BrainData::load_from_disk()?;
     // println!("{}", serde_yaml::to_string(&old_brain_data)?);
 
-    init(DB_ADDRESS, DB_NS, DB_NAME).await?;
+    let db_connection = db::db_connection(DB_ADDRESS, DB_NS, DB_NAME).await.unwrap();
 
-    db::migration0(&old_brain_data).await?;
+    db::migration0(&db_connection, &old_brain_data).await?;
 
     Ok(())
 }

src/constants.rs

@@ -10,6 +10,8 @@ pub const DB_NAME: &str = "migration";
 pub const DB_USER: &str = "root";
 pub const DB_PASS: &str = "root";
 
+pub const DB_SCHEMA_FILE: &str = "interim_tables.surql";
+
 pub const ADMIN_ACCOUNTS: &[&str] = &[
     "x52w7jARC5erhWWK65VZmjdGXzBK6ZDgfv1A283d8XK",
     "FHuecMbeC1PfjkW2JKyoicJAuiU7khgQT16QUB3Q1XdL",

src/db.rs

@@ -1,11 +1,12 @@
+use std::str::FromStr;
+
 pub use crate::constants::{
-    ACCOUNT, ACTIVE_VM, DB_ADDRESS, DB_NAME, DB_NS, DB_PASS, DB_USER, DELETED_VM, ID_ALPHABET,
+    ACCOUNT, ACTIVE_VM, DB_ADDRESS, DB_NAME, DB_NS, DB_PASS, DB_SCHEMA_FILE, DB_USER, DELETED_VM,
-    NEW_VM_REQ, UPDATE_VM_REQ, VM_CONTRACT, VM_NODE,
+    ID_ALPHABET, NEW_VM_REQ, UPDATE_VM_REQ, VM_CONTRACT, VM_NODE,
 };
 
 use crate::old_brain;
 use serde::{Deserialize, Serialize};
-use std::{str::FromStr, sync::LazyLock};
 use surrealdb::{
     engine::remote::ws::{Client, Ws},
     opt::auth::Root,
@@ -15,49 +16,57 @@ use surrealdb::{
 use tokio::sync::mpsc::Sender;
 use tokio_stream::StreamExt as _;
 
-pub static DB: LazyLock<Surreal<Client>> = LazyLock::new(Surreal::init);
-
 #[derive(thiserror::Error, Debug)]
 pub enum Error {
     #[error("Internal DB error: {0}")]
     DataBase(#[from] surrealdb::Error),
     #[error("Daemon channel got closed: {0}")]
     DaemonConnection(#[from] tokio::sync::mpsc::error::SendError<DaemonNotification>),
+    #[error(transparent)]
+    StdIo(#[from] std::io::Error),
 }
 
-pub async fn init(db_address: &str, ns: &str, db: &str) -> surrealdb::Result<()> {
+pub async fn db_connection(db_address: &str, ns: &str, db: &str) -> Result<Surreal<Client>, Error> {
-    DB.connect::<Ws>(db_address).await?;
+    let db_connection: Surreal<Client> = Surreal::init();
+    db_connection.connect::<Ws>(db_address).await?;
     // Sign in to the server
-    DB.signin(Root { username: DB_USER, password: DB_PASS }).await?;
+    db_connection.signin(Root { username: DB_USER, password: DB_PASS }).await?;
-    DB.use_ns(ns).use_db(db).await?;
+    db_connection.use_ns(ns).use_db(db).await?;
-    Ok(())
+    Ok(db_connection)
 }
 
 pub async fn upsert_record<SomeRecord: Serialize + 'static>(
+    db: &Surreal<Client>,
     table: &str,
     id: &str,
     my_record: SomeRecord,
 ) -> Result<(), Error> {
     #[derive(Deserialize)]
     struct Wrapper {}
-    let _: Option<Wrapper> = DB.create((table, id)).content(my_record).await?;
+    let _: Option<Wrapper> = db.create((table, id)).content(my_record).await?;
     Ok(())
 }
 
-pub async fn migration0(old_data: &old_brain::BrainData) -> surrealdb::Result<()> {
+pub async fn migration0(
+    db: &Surreal<Client>,
+    old_data: &old_brain::BrainData,
+) -> Result<(), Error> {
     let accounts: Vec<Account> = old_data.into();
     let vm_nodes: Vec<VmNode> = old_data.into();
     let app_nodes: Vec<AppNode> = old_data.into();
     let vm_contracts: Vec<ActiveVm> = old_data.into();
 
+    let schema = std::fs::read_to_string(DB_SCHEMA_FILE)?;
+    db.query(schema).await?;
+
     println!("Inserting accounts...");
-    let _: Vec<Account> = DB.insert(()).content(accounts).await?;
+    let _: Vec<Account> = db.insert(()).content(accounts).await?;
     println!("Inserting vm nodes...");
-    let _: Vec<VmNode> = DB.insert(()).content(vm_nodes).await?;
+    let _: Vec<VmNode> = db.insert(()).content(vm_nodes).await?;
     println!("Inserting app nodes...");
-    let _: Vec<AppNode> = DB.insert(()).content(app_nodes).await?;
+    let _: Vec<AppNode> = db.insert(()).content(app_nodes).await?;
     println!("Inserting vm contracts...");
-    let _: Vec<ActiveVm> = DB.insert("vm_contract").relation(vm_contracts).await?;
+    let _: Vec<ActiveVm> = db.insert("vm_contract").relation(vm_contracts).await?;
 
     Ok(())
 }
@@ -72,9 +81,9 @@ pub struct Account {
 }
 
 impl Account {
-    pub async fn get(address: &str) -> Result<Self, Error> {
+    pub async fn get(db: &Surreal<Client>, address: &str) -> Result<Self, Error> {
         let id = (ACCOUNT, address);
-        let account: Option<Self> = DB.select(id).await?;
+        let account: Option<Self> = db.select(id).await?;
         let account = match account {
             Some(account) => account,
             None => {
@@ -84,9 +93,9 @@ impl Account {
         Ok(account)
     }
 
-    pub async fn airdrop(account: &str, tokens: u64) -> Result<(), Error> {
+    pub async fn airdrop(db: &Surreal<Client>, account: &str, tokens: u64) -> Result<(), Error> {
         let tokens = tokens.saturating_mul(1_000_000_000);
-        let _ = DB
+        let _ = db
             .query(format!("upsert account:{account} SET balance = (balance || 0) + {tokens};"))
             .await?;
         Ok(())
@@ -94,8 +103,12 @@ impl Account {
 }
 
 impl Account {
-    pub async fn is_banned_by_node(user: &str, node: &str) -> Result<bool, Error> {
+    pub async fn is_banned_by_node(
-        let ban: Option<Self> = DB
+        db: &Surreal<Client>,
+        user: &str,
+        node: &str,
+    ) -> Result<bool, Error> {
+        let ban: Option<Self> = db
             .query(format!(
                 "(select operator->ban[0] as ban
                     from vm_node:{node}
@@ -139,15 +152,15 @@ pub struct VmNodeResources {
 }
 
 impl VmNodeResources {
-    pub async fn merge(self, node_id: &str) -> Result<(), Error> {
+    pub async fn merge(self, db: &Surreal<Client>, node_id: &str) -> Result<(), Error> {
-        let _: Option<VmNode> = DB.update((VM_NODE, node_id)).merge(self).await?;
+        let _: Option<VmNode> = db.update((VM_NODE, node_id)).merge(self).await?;
         Ok(())
     }
 }
 
 impl VmNode {
-    pub async fn register(self) -> Result<(), Error> {
+    pub async fn register(self, db: &Surreal<Client>) -> Result<(), Error> {
-        let _: Option<VmNode> = DB.upsert(self.id.clone()).content(self).await?;
+        let _: Option<VmNode> = db.upsert(self.id.clone()).content(self).await?;
         Ok(())
     }
 }
@@ -176,6 +189,7 @@ impl VmNodeWithReports {
     // TODO: find a more elegant way to do this than importing gRPC in the DB module
     // https://en.wikipedia.org/wiki/Dependency_inversion_principle
     pub async fn find_by_filters(
+        db: &Surreal<Client>,
         filters: detee_shared::snp::pb::vm_proto::VmNodeFilters,
     ) -> Result<Vec<Self>, Error> {
         let mut query = format!(
@@ -208,7 +222,7 @@ impl VmNodeWithReports {
             query += &format!("&& ip = '{}' ", filters.ip);
         }
         query += ";";
-        let mut result = DB.query(query).await?;
+        let mut result = db.query(query).await?;
         let vm_nodes: Vec<Self> = result.take(0)?;
         Ok(vm_nodes)
     }
@@ -263,27 +277,27 @@ pub struct NewVmReq {
 }
 
 impl NewVmReq {
-    pub async fn get(id: &str) -> Result<Option<Self>, Error> {
+    pub async fn get(db: &Surreal<Client>, id: &str) -> Result<Option<Self>, Error> {
-        let new_vm_req: Option<Self> = DB.select((NEW_VM_REQ, id)).await?;
+        let new_vm_req: Option<Self> = db.select((NEW_VM_REQ, id)).await?;
         Ok(new_vm_req)
     }
 
-    pub async fn delete(id: &str) -> Result<(), Error> {
+    pub async fn delete(db: &Surreal<Client>, id: &str) -> Result<(), Error> {
-        let _: Option<Self> = DB.delete((NEW_VM_REQ, id)).await?;
+        let _: Option<Self> = db.delete((NEW_VM_REQ, id)).await?;
         Ok(())
     }
 
-    pub async fn submit_error(id: &str, error: String) -> Result<(), Error> {
+    pub async fn submit_error(db: &Surreal<Client>, id: &str, error: String) -> Result<(), Error> {
         #[derive(Serialize)]
         struct NewVmError {
             error: String,
         }
-        let _: Option<Self> = DB.update((NEW_VM_REQ, id)).merge(NewVmError { error }).await?;
+        let _: Option<Self> = db.update((NEW_VM_REQ, id)).merge(NewVmError { error }).await?;
         Ok(())
     }
 
-    pub async fn submit(self) -> Result<(), Error> {
+    pub async fn submit(self, db: &Surreal<Client>) -> Result<(), Error> {
-        let _: Vec<Self> = DB.insert(NEW_VM_REQ).relation(self).await?;
+        let _: Vec<Self> = db.insert(NEW_VM_REQ).relation(self).await?;
         Ok(())
     }
 }
@@ -297,8 +311,8 @@ pub enum NewVmResp {
 }
 
 impl NewVmResp {
-    pub async fn listen(vm_id: &str) -> Result<NewVmResp, Error> {
+    pub async fn listen(db: &Surreal<Client>, vm_id: &str) -> Result<NewVmResp, Error> {
-        let mut resp = DB
+        let mut resp = db
             .query(format!("live select * from {NEW_VM_REQ} where id = {NEW_VM_REQ}:{vm_id};"))
             .query(format!(
                 "live select * from measurement_args where id = measurement_args:{vm_id};"
@@ -364,10 +378,11 @@ pub struct ActiveVm {
 
 impl ActiveVm {
     pub async fn activate(
+        db: &Surreal<Client>,
         id: &str,
         args: detee_shared::vm_proto::MeasurementArgs,
     ) -> Result<(), Error> {
-        let new_vm_req = match NewVmReq::get(id).await? {
+        let new_vm_req = match NewVmReq::get(db, id).await? {
             Some(r) => r,
             None => return Ok(()),
         };
@@ -415,9 +430,9 @@ impl ActiveVm {
             collected_at: new_vm_req.created_at,
         };
 
-        let _: Vec<ActiveVm> = DB.insert(()).relation(active_vm).await?;
+        let _: Vec<ActiveVm> = db.insert(()).relation(active_vm).await?;
 
-        NewVmReq::delete(id).await?;
+        NewVmReq::delete(db, id).await?;
         Ok(())
     }
 }
@@ -444,6 +459,7 @@ pub struct UpdateVmReq {
 pub async fn listen_for_node<
     T: Into<DaemonNotification> + std::marker::Unpin + for<'de> Deserialize<'de>,
 >(
+    db: &Surreal<Client>,
     node: &str,
     tx: Sender<DaemonNotification>,
 ) -> Result<(), Error> {
@@ -457,7 +473,7 @@ pub async fn listen_for_node<
         }
     };
     let mut resp =
-        DB.query(format!("live select * from {table_name} where out = vm_node:{node};")).await?;
+        db.query(format!("live select * from {table_name} where out = vm_node:{node};")).await?;
     let mut live_stream = resp.stream::<Notification<T>>(0)?;
     while let Some(result) = live_stream.next().await {
         match result {
@@ -497,28 +513,31 @@ pub struct DeletedVm {
 }
 
 impl DeletedVm {
-    pub async fn get_by_uuid(uuid: &str) -> Result<Option<Self>, Error> {
+    pub async fn get_by_uuid(db: &Surreal<Client>, uuid: &str) -> Result<Option<Self>, Error> {
         let contract: Option<Self> =
-            DB.query(format!("select * from {DELETED_VM}:{uuid};")).await?.take(0)?;
+            db.query(format!("select * from {DELETED_VM}:{uuid};")).await?.take(0)?;
         Ok(contract)
     }
 
-    pub async fn list_by_admin(admin: &str) -> Result<Vec<Self>, Error> {
+    pub async fn list_by_admin(db: &Surreal<Client>, admin: &str) -> Result<Vec<Self>, Error> {
         let mut result =
-            DB.query(format!("select * from {DELETED_VM} where in = {ACCOUNT}:{admin};")).await?;
+            db.query(format!("select * from {DELETED_VM} where in = {ACCOUNT}:{admin};")).await?;
         let contracts: Vec<Self> = result.take(0)?;
         Ok(contracts)
     }
 
-    pub async fn list_by_node(admin: &str) -> Result<Vec<Self>, Error> {
+    pub async fn list_by_node(db: &Surreal<Client>, admin: &str) -> Result<Vec<Self>, Error> {
         let mut result =
-            DB.query(format!("select * from {DELETED_VM} where out = {VM_NODE}:{admin};")).await?;
+            db.query(format!("select * from {DELETED_VM} where out = {VM_NODE}:{admin};")).await?;
         let contracts: Vec<Self> = result.take(0)?;
         Ok(contracts)
     }
 
-    pub async fn list_by_operator(operator: &str) -> Result<Vec<Self>, Error> {
+    pub async fn list_by_operator(
-        let mut result = DB
+        db: &Surreal<Client>,
+        operator: &str,
+    ) -> Result<Vec<Self>, Error> {
+        let mut result = db
             .query(format!(
                 "select
                 (select * from ->operator->vm_node<-{DELETED_VM}) as contracts
@@ -596,30 +615,33 @@ pub struct ActiveVmWithNode {
 }
 
 impl ActiveVmWithNode {
-    pub async fn get_by_uuid(uuid: &str) -> Result<Option<Self>, Error> {
+    pub async fn get_by_uuid(db: &Surreal<Client>, uuid: &str) -> Result<Option<Self>, Error> {
         let contract: Option<Self> =
-            DB.query(format!("select * from {ACTIVE_VM}:{uuid} fetch out;")).await?.take(0)?;
+            db.query(format!("select * from {ACTIVE_VM}:{uuid} fetch out;")).await?.take(0)?;
         Ok(contract)
     }
 
-    pub async fn list_by_admin(admin: &str) -> Result<Vec<Self>, Error> {
+    pub async fn list_by_admin(db: &Surreal<Client>, admin: &str) -> Result<Vec<Self>, Error> {
-        let mut result = DB
+        let mut result = db
             .query(format!("select * from {ACTIVE_VM} where in = {ACCOUNT}:{admin} fetch out;"))
             .await?;
         let contracts: Vec<Self> = result.take(0)?;
         Ok(contracts)
     }
 
-    pub async fn list_by_node(admin: &str) -> Result<Vec<Self>, Error> {
+    pub async fn list_by_node(db: &Surreal<Client>, admin: &str) -> Result<Vec<Self>, Error> {
-        let mut result = DB
+        let mut result = db
             .query(format!("select * from {ACTIVE_VM} where out = {VM_NODE}:{admin} fetch out;"))
             .await?;
         let contracts: Vec<Self> = result.take(0)?;
         Ok(contracts)
     }
 
-    pub async fn list_by_operator(operator: &str) -> Result<Vec<Self>, Error> {
+    pub async fn list_by_operator(
-        let mut result = DB
+        db: &Surreal<Client>,
+        operator: &str,
+    ) -> Result<Vec<Self>, Error> {
+        let mut result = db
             .query(format!(
                 "select
                 (select * from ->operator->vm_node<-{ACTIVE_VM} fetch out) as contracts
@@ -748,11 +770,12 @@ pub struct Report {
 impl Report {
     // TODO: test this functionality and remove this comment
     pub async fn create(
+        db: &Surreal<Client>,
         from_account: RecordId,
         to_node: RecordId,
         reason: String,
     ) -> Result<(), Error> {
-        let _: Vec<Self> = DB
+        let _: Vec<Self> = db
             .insert("report")
             .relation(Report { from_account, to_node, created_at: Datetime::default(), reason })
             .await?;
@@ -773,8 +796,8 @@ pub struct Operator {
 }
 
 impl Operator {
-    pub async fn list() -> Result<Vec<Self>, Error> {
+    pub async fn list(db: &Surreal<Client>) -> Result<Vec<Self>, Error> {
-        let mut result = DB
+        let mut result = db
             .query(
                 "array::distinct(array::flatten( [
                     (select operator from vm_node group by operator).operator,
@@ -786,15 +809,15 @@ impl Operator {
         let operator_accounts: Vec<RecordId> = result.take(0)?;
         let mut operators: Vec<Self> = Vec::new();
         for account in operator_accounts.iter() {
-            if let Some(operator) = Self::inspect(&account.key().to_string()).await? {
+            if let Some(operator) = Self::inspect(db, &account.key().to_string()).await? {
                 operators.push(operator);
             }
         }
         Ok(operators)
     }
 
-    pub async fn inspect(account: &str) -> Result<Option<Self>, Error> {
+    pub async fn inspect(db: &Surreal<Client>, account: &str) -> Result<Option<Self>, Error> {
-        let mut result = DB
+        let mut result = db
             .query(format!(
                 "$vm_nodes = (select id from vm_node where operator = account:{account}).id;
                 $app_nodes = (select id from app_node where operator = account:{account}).id;
@@ -815,10 +838,11 @@ impl Operator {
     }
 
     pub async fn inspect_nodes(
+        db: &Surreal<Client>,
         account: &str,
     ) -> Result<(Option<Self>, Vec<VmNodeWithReports>, Vec<AppNodeWithReports>), Error> {
-        let operator = Self::inspect(account).await?;
+        let operator = Self::inspect(db, account).await?;
-        let mut result = DB
+        let mut result = db
             .query(format!(
                 "select *, operator, <-report.* as reports from vm_node
                  where operator = account:{account};"

src/grpc.rs

@@ -1,6 +1,6 @@
 #![allow(dead_code)]
 use crate::constants::{ACCOUNT, ADMIN_ACCOUNTS, VM_NODE};
-use crate::db;
+use crate::{db, BrainState};
 use detee_shared::app_proto::{AppContract, AppNodeListResp};
 use detee_shared::{
     common_proto::{Empty, Pubkey},
@@ -18,13 +18,22 @@ use nanoid::nanoid;
 
 use log::info;
 use std::pin::Pin;
+use std::sync::Arc;
 use surrealdb::RecordId;
 use tokio::sync::mpsc;
 use tokio_stream::wrappers::ReceiverStream;
 use tokio_stream::{Stream, StreamExt};
 use tonic::{Request, Response, Status, Streaming};
 
-pub struct BrainGeneralCliForReal {}
+pub struct BrainGeneralCliForReal {
+    state: Arc<BrainState>,
+}
+
+impl BrainGeneralCliForReal {
+    pub fn new(state: Arc<BrainState>) -> Self {
+        Self { state }
+    }
+}
 
 impl From<db::Account> for AccountBalance {
     fn from(account: db::Account) -> Self {
@@ -239,7 +248,15 @@ impl From<VmNodeResources> for db::VmNodeResources {
     }
 }
 
-pub struct BrainVmDaemonForReal {}
+pub struct BrainVmDaemonForReal {
+    pub state: Arc<BrainState>,
+}
+
+impl BrainVmDaemonForReal {
+    pub fn new(state: Arc<BrainState>) -> Self {
+        Self { state }
+    }
+}
 
 #[tonic::async_trait]
 impl BrainVmDaemon for BrainVmDaemonForReal {
@@ -267,11 +284,12 @@ impl BrainVmDaemon for BrainVmDaemonForReal {
             max_ports_per_vm: 0,
             offline_minutes: 0,
         }
-        .register()
+        .register(&self.state.db_connection)
         .await?;
 
         info!("Sending existing contracts to {}", req.node_pubkey);
-        let contracts = db::ActiveVmWithNode::list_by_node(&req.node_pubkey).await?;
+        let contracts =
+            db::ActiveVmWithNode::list_by_node(&self.state.db_connection, &req.node_pubkey).await?;
         let (tx, rx) = mpsc::channel(6);
         tokio::spawn(async move {
             for contract in contracts {
@@ -299,10 +317,12 @@ impl BrainVmDaemon for BrainVmDaemonForReal {
 
         let (tx, rx) = mpsc::channel(6);
         {
+            let state = self.state.clone();
             let pubkey = pubkey.clone();
             let tx = tx.clone();
             tokio::spawn(async move {
-                match db::listen_for_node::<db::DeletedVm>(&pubkey, tx).await {
+                match db::listen_for_node::<db::DeletedVm>(&state.db_connection, &pubkey, tx).await
+                {
                     Ok(()) => log::info!("db::VmContract::listen_for_node ended for {pubkey}"),
                     Err(e) => {
                         log::warn!("db::VmContract::listen_for_node errored for {pubkey}: {e}")
@@ -311,17 +331,26 @@ impl BrainVmDaemon for BrainVmDaemonForReal {
             });
         }
         {
+            let state = self.state.clone();
             let pubkey = pubkey.clone();
             let tx = tx.clone();
             tokio::spawn(async move {
-                let _ = db::listen_for_node::<db::NewVmReq>(&pubkey, tx.clone()).await;
+                let _ =
+                    db::listen_for_node::<db::NewVmReq>(&state.db_connection, &pubkey, tx.clone())
+                        .await;
             });
         }
         {
+            let state = self.state.clone();
             let pubkey = pubkey.clone();
             let tx = tx.clone();
             tokio::spawn(async move {
-                let _ = db::listen_for_node::<db::UpdateVmReq>(&pubkey, tx.clone()).await;
+                let _ = db::listen_for_node::<db::UpdateVmReq>(
+                    &state.db_connection,
+                    &pubkey,
+                    tx.clone(),
+                )
+                .await;
             });
         }
 
@@ -361,17 +390,27 @@ impl BrainVmDaemon for BrainVmDaemonForReal {
                         // TODO: move new_vm_req to active_vm
                         // also handle failure properly
                         if !new_vm_resp.error.is_empty() {
-                            db::NewVmReq::submit_error(&new_vm_resp.uuid, new_vm_resp.error)
+                            db::NewVmReq::submit_error(
-                                .await?;
+                                &self.state.db_connection,
+                                &new_vm_resp.uuid,
+                                new_vm_resp.error,
+                            )
+                            .await?;
                         } else {
                             db::upsert_record(
+                                &self.state.db_connection,
                                 "measurement_args",
                                 &new_vm_resp.uuid,
                                 new_vm_resp.args.clone(),
                             )
                             .await?;
                             if let Some(args) = new_vm_resp.args {
-                                db::ActiveVm::activate(&new_vm_resp.uuid, args).await?;
+                                db::ActiveVm::activate(
+                                    &self.state.db_connection,
+                                    &new_vm_resp.uuid,
+                                    args,
+                                )
+                                .await?;
                             }
                         }
                     }
@@ -381,7 +420,7 @@ impl BrainVmDaemon for BrainVmDaemonForReal {
                     }
                     Some(vm_daemon_message::Msg::VmNodeResources(node_resources)) => {
                         let node_resources: db::VmNodeResources = node_resources.into();
-                        node_resources.merge(&pubkey).await?;
+                        node_resources.merge(&self.state.db_connection, &pubkey).await?;
                     }
                     _ => {}
                 },
@@ -405,24 +444,27 @@ impl BrainGeneralCli for BrainGeneralCliForReal {
 
     async fn get_balance(&self, req: Request<Pubkey>) -> Result<Response<AccountBalance>, Status> {
         let req = check_sig_from_req(req)?;
-        Ok(Response::new(db::Account::get(&req.pubkey).await?.into()))
+        Ok(Response::new(db::Account::get(&self.state.db_connection, &req.pubkey).await?.into()))
     }
 
     async fn report_node(&self, req: Request<ReportNodeReq>) -> Result<Response<Empty>, Status> {
         let req = check_sig_from_req(req)?;
-        let (account, node) = match db::ActiveVmWithNode::get_by_uuid(&req.contract).await? {
+        let (account, node) =
-            Some(vm_contract)
+            match db::ActiveVmWithNode::get_by_uuid(&self.state.db_connection, &req.contract)
-                if vm_contract.admin.key().to_string() == req.admin_pubkey
+                .await?
-                    && vm_contract.vm_node.id.key().to_string() == req.node_pubkey =>
             {
-                (vm_contract.admin, vm_contract.vm_node.id)
+                Some(vm_contract)
-            }
+                    if vm_contract.admin.key().to_string() == req.admin_pubkey
-            _ => {
+                        && vm_contract.vm_node.id.key().to_string() == req.node_pubkey =>
-                // TODO: Hey, Noor! Please add app contract here.
+                {
-                return Err(Status::unauthenticated("No contract found by this ID."));
+                    (vm_contract.admin, vm_contract.vm_node.id)
-            }
+                }
-        };
+                _ => {
-        db::Report::create(account, node, req.reason).await?;
+                    // TODO: Hey, Noor! Please add app contract here.
+                    return Err(Status::unauthenticated("No contract found by this ID."));
+                }
+            };
+        db::Report::create(&self.state.db_connection, account, node, req.reason).await?;
         Ok(Response::new(Empty {}))
     }
 
@@ -431,7 +473,7 @@ impl BrainGeneralCli for BrainGeneralCliForReal {
         req: Request<Empty>,
     ) -> Result<Response<Self::ListOperatorsStream>, Status> {
         let _ = check_sig_from_req(req)?;
-        let operators = db::Operator::list().await?;
+        let operators = db::Operator::list(&self.state.db_connection).await?;
         let (tx, rx) = mpsc::channel(6);
         tokio::spawn(async move {
             for op in operators {
@@ -446,7 +488,9 @@ impl BrainGeneralCli for BrainGeneralCliForReal {
         &self,
         req: Request<Pubkey>,
     ) -> Result<Response<InspectOperatorResp>, Status> {
-        match db::Operator::inspect_nodes(&req.into_inner().pubkey).await? {
+        match db::Operator::inspect_nodes(&self.state.db_connection, &req.into_inner().pubkey)
+            .await?
+        {
             (Some(op), vm_nodes, app_nodes) => Ok(Response::new(InspectOperatorResp {
                 operator: Some(op.into()),
                 vm_nodes: vm_nodes.into_iter().map(|n| n.into()).collect(),
@@ -490,7 +534,7 @@ impl BrainGeneralCli for BrainGeneralCliForReal {
     async fn airdrop(&self, req: Request<AirdropReq>) -> Result<Response<Empty>, Status> {
         check_admin_key(&req)?;
         let req = check_sig_from_req(req)?;
-        db::Account::airdrop(&req.pubkey, req.tokens).await?;
+        db::Account::airdrop(&self.state.db_connection, &req.pubkey, req.tokens).await?;
         Ok(Response::new(Empty {}))
     }
 
@@ -557,7 +601,15 @@ impl BrainGeneralCli for BrainGeneralCliForReal {
     }
 }
 
-pub struct BrainVmCliForReal {}
+pub struct BrainVmCliForReal {
+    state: Arc<BrainState>,
+}
+
+impl BrainVmCliForReal {
+    pub fn new(state: Arc<BrainState>) -> Self {
+        Self { state }
+    }
+}
 
 #[tonic::async_trait]
 impl BrainVmCli for BrainVmCliForReal {
@@ -567,17 +619,26 @@ impl BrainVmCli for BrainVmCliForReal {
     async fn new_vm(&self, req: Request<NewVmReq>) -> Result<Response<NewVmResp>, Status> {
         let req = check_sig_from_req(req)?;
         info!("New VM requested via CLI: {req:?}");
-        if db::Account::is_banned_by_node(&req.admin_pubkey, &req.node_pubkey).await? {
+        if db::Account::is_banned_by_node(
+            &self.state.db_connection,
+            &req.admin_pubkey,
+            &req.node_pubkey,
+        )
+        .await?
+        {
             return Err(Status::permission_denied("This operator banned you. What did you do?"));
         }
 
         let new_vm_req: db::NewVmReq = req.into();
         let id = new_vm_req.id.key().to_string();
+
+        let state = self.state.clone();
+
         let (oneshot_tx, oneshot_rx) = tokio::sync::oneshot::channel();
         tokio::spawn(async move {
-            let _ = oneshot_tx.send(db::NewVmResp::listen(&id).await);
+            let _ = oneshot_tx.send(db::NewVmResp::listen(&state.db_connection, &id).await);
         });
-        new_vm_req.submit().await?;
+        new_vm_req.submit(&self.state.db_connection).await?;
 
         match oneshot_rx.await {
             Ok(new_vm_resp) => Ok(Response::new(new_vm_resp?.into())),
@@ -639,16 +700,24 @@ impl BrainVmCli for BrainVmCliForReal {
         );
         let mut contracts = Vec::new();
         if !req.uuid.is_empty() {
-            if let Some(specific_contract) = db::ActiveVmWithNode::get_by_uuid(&req.uuid).await? {
+            if let Some(specific_contract) =
+                db::ActiveVmWithNode::get_by_uuid(&self.state.db_connection, &req.uuid).await?
+            {
                 if specific_contract.admin.key().to_string() == req.wallet {
                     contracts.push(specific_contract);
                 }
                 // TODO: allow operator to inspect contracts
             }
         } else if req.as_operator {
-            contracts.append(&mut db::ActiveVmWithNode::list_by_operator(&req.wallet).await?);
+            contracts.append(
+                &mut db::ActiveVmWithNode::list_by_operator(&self.state.db_connection, &req.wallet)
+                    .await?,
+            );
         } else {
-            contracts.append(&mut db::ActiveVmWithNode::list_by_admin(&req.wallet).await?);
+            contracts.append(
+                &mut db::ActiveVmWithNode::list_by_admin(&self.state.db_connection, &req.wallet)
+                    .await?,
+            );
         }
         let (tx, rx) = mpsc::channel(6);
         tokio::spawn(async move {
@@ -666,7 +735,7 @@ impl BrainVmCli for BrainVmCliForReal {
     ) -> Result<Response<Self::ListVmNodesStream>, tonic::Status> {
         let req = check_sig_from_req(req)?;
         info!("CLI requested ListVmNodesStream: {req:?}");
-        let nodes = db::VmNodeWithReports::find_by_filters(req).await?;
+        let nodes = db::VmNodeWithReports::find_by_filters(&self.state.db_connection, req).await?;
         let (tx, rx) = mpsc::channel(6);
         tokio::spawn(async move {
             for node in nodes {
@@ -684,7 +753,7 @@ impl BrainVmCli for BrainVmCliForReal {
         let req = check_sig_from_req(req)?;
         info!("Unknown CLI requested ListVmNodesStream: {req:?}");
         // TODO: optimize this query so that it gets only one node
-        let nodes = db::VmNodeWithReports::find_by_filters(req).await?;
+        let nodes = db::VmNodeWithReports::find_by_filters(&self.state.db_connection, req).await?;
         if let Some(node) = nodes.into_iter().next() {
             return Ok(Response::new(node.into()));
         }

src/lib.rs

@@ -1,4 +1,10 @@
+use surrealdb::{engine::remote::ws::Client, Surreal};
+
 pub mod constants;
 pub mod db;
 pub mod grpc;
 pub mod old_brain;
+
+pub struct BrainState {
+    pub db_connection: Surreal<Client>,
+}

tests/common/prepare_test_env.rs

@@ -5,45 +5,91 @@ use detee_shared::{
 };
 use hyper_util::rt::TokioIo;
 use std::net::SocketAddr;
+use std::sync::Arc;
 use surreal_brain::grpc::{BrainGeneralCliForReal, BrainVmCliForReal, BrainVmDaemonForReal};
+use surreal_brain::BrainState;
 use tokio::io::DuplexStream;
 use tokio::{net::TcpListener, sync::OnceCell};
 use tonic::transport::{Channel, Endpoint, Server, Uri};
 use tower::service_fn;
 
+use surrealdb::engine::remote::ws::Client;
+use surrealdb::Surreal;
+
 pub const DB_URL: &str = "localhost:8000";
 pub const DB_NS: &str = "test_brain";
 pub const DB_NAME: &str = "test_migration_db";
 
 pub static DB_STATE: OnceCell<()> = OnceCell::const_new();
 
-pub async fn prepare_test_db() {
+pub async fn prepare_test_db() -> Surreal<Client> {
+    let db_connection = surreal_brain::db::db_connection(DB_URL, DB_NS, DB_NAME).await.unwrap();
     DB_STATE
         .get_or_init(|| async {
-            surreal_brain::db::init(DB_URL, DB_NS, DB_NAME)
+            // surreal_brain::db::init(DB_URL, DB_NS, DB_NAME)
-                .await
+            //     .await
-                .expect("Failed to initialize the database");
+            //     .expect("Failed to initialize the database");
+
+            // surreal_brain::db::DB
+            //     .set(surreal_brain::db::db_connection(DB_URL, DB_NS, DB_NAME).await.unwrap())
+            //     .unwrap();
 
             let old_brain_data = surreal_brain::old_brain::BrainData::load_from_disk().unwrap();
-            surreal_brain::db::DB.query(format!("REMOVE DATABASE {DB_NAME}")).await.unwrap();
+            db_connection.query(format!("REMOVE DATABASE {DB_NAME}")).await.unwrap();
-            surreal_brain::db::DB
+            db_connection
                 .query(std::fs::read_to_string("interim_tables.surql").unwrap())
                 .await
                 .unwrap();
-            surreal_brain::db::migration0(&old_brain_data).await.unwrap();
+            surreal_brain::db::migration0(&db_connection, &old_brain_data).await.unwrap();
         })
         .await;
+    db_connection
 }
 
+/*
+use db::DB;
+
+#[tokio::main]
+async fn main() {
+    env_logger::builder().filter_level(log::LevelFilter::Debug).init();
+    // db::init(DB_ADDRESS, DB_NS, DB_NAME).await.unwrap();
+
+    DB.set(db::db_connection(DB_ADDRESS, DB_NS, DB_NAME).await.unwrap()).unwrap();
+
+    let db_connection = db::db_connection(DB_ADDRESS, DB_NS, DB_NAME).await.unwrap();
+    let state = Arc::new(BrainState { db_connection });
+
+    let addr = BRAIN_GRPC_ADDR.parse().unwrap();
+
+    let snp_daemon_server = BrainVmDaemonServer::new(BrainVmDaemonForReal::new(state.clone()));
+    let snp_cli_server = BrainVmCliServer::new(BrainVmCliForReal::new(state.clone()));
+    let general_service_server =
+        BrainGeneralCliServer::new(BrainGeneralCliForReal::new(state.clone()));
+
+    let cert = std::fs::read_to_string(CERT_PATH).unwrap();
+    let key = std::fs::read_to_string(CERT_KEY_PATH).unwrap();
+
+    let identity = Identity::from_pem(cert, key);
+
+    Server::builder()
+        .tls_config(ServerTlsConfig::new().identity(identity))
+        .unwrap()
+        .add_service(snp_daemon_server)
+        .add_service(snp_cli_server)
+ */
+
 pub async fn run_service_in_background() -> SocketAddr {
     let listener = TcpListener::bind("127.0.0.1:0").await.unwrap();
     let addr = listener.local_addr().unwrap();
 
     tokio::spawn(async move {
+        let db_connection = surreal_brain::db::db_connection(DB_URL, DB_NS, DB_NAME).await.unwrap();
+        let state = Arc::new(BrainState { db_connection });
+
         Server::builder()
-            .add_service(BrainGeneralCliServer::new(BrainGeneralCliForReal {}))
+            .add_service(BrainGeneralCliServer::new(BrainGeneralCliForReal::new(state.clone())))
-            .add_service(BrainVmCliServer::new(BrainVmCliForReal {}))
+            .add_service(BrainVmCliServer::new(BrainVmCliForReal::new(state.clone())))
-            .add_service(BrainVmDaemonServer::new(BrainVmDaemonForReal {}))
+            .add_service(BrainVmDaemonServer::new(BrainVmDaemonForReal::new(state.clone())))
             .serve_with_incoming(tokio_stream::wrappers::TcpListenerStream::new(listener))
             .await
             .unwrap();
@@ -58,10 +104,13 @@ pub async fn run_service_for_stream_server() -> DuplexStream {
     let (client, server) = tokio::io::duplex(1024);
 
     tokio::spawn(async move {
+        let db_connection = surreal_brain::db::db_connection(DB_URL, DB_NS, DB_NAME).await.unwrap();
+        let state = Arc::new(BrainState { db_connection });
+
         tonic::transport::Server::builder()
-            .add_service(BrainGeneralCliServer::new(BrainGeneralCliForReal {}))
+            .add_service(BrainGeneralCliServer::new(BrainGeneralCliForReal::new(state.clone())))
-            .add_service(BrainVmCliServer::new(BrainVmCliForReal {}))
+            .add_service(BrainVmCliServer::new(BrainVmCliForReal::new(state.clone())))
-            .add_service(BrainVmDaemonServer::new(BrainVmDaemonForReal {}))
+            .add_service(BrainVmDaemonServer::new(BrainVmDaemonForReal::new(state.clone())))
             .serve_with_incoming(tokio_stream::once(Ok::<_, std::io::Error>(server)))
             .await
     });

tests/common/vm_cli_utils.rs

@@ -3,9 +3,16 @@ use detee_shared::vm_proto;
 use detee_shared::vm_proto::brain_vm_cli_client::BrainVmCliClient;
 use surreal_brain::constants::{ACTIVE_VM, NEW_VM_REQ};
 use surreal_brain::db;
+use surrealdb::engine::remote::ws::Client;
+use surrealdb::Surreal;
 use tonic::transport::Channel;
 
-pub async fn create_new_vm(key: Key, node_pubkey: String, brain_channel: Channel) -> String {
+pub async fn create_new_vm(
+    db: &Surreal<Client>,
+    key: Key,
+    node_pubkey: String,
+    brain_channel: Channel,
+) -> String {
     let new_vm_req = vm_proto::NewVmReq {
         admin_pubkey: key.pubkey.clone(),
         node_pubkey,
@@ -26,14 +33,14 @@ pub async fn create_new_vm(key: Key, node_pubkey: String, brain_channel: Channel
     tokio::time::sleep(tokio::time::Duration::from_millis(700)).await;
 
     let vm_req_db: Option<db::NewVmReq> =
-        db::DB.select((NEW_VM_REQ, new_vm_resp.uuid.clone())).await.unwrap();
+        db.select((NEW_VM_REQ, new_vm_resp.uuid.clone())).await.unwrap();
 
     if let Some(new_vm_req) = vm_req_db {
         panic!("New VM request found in DB: {:?}", new_vm_req);
     }
 
     let active_vm_op: Option<db::ActiveVm> =
-        db::DB.select((ACTIVE_VM, new_vm_resp.uuid.clone())).await.unwrap();
+        db.select((ACTIVE_VM, new_vm_resp.uuid.clone())).await.unwrap();
     let active_vm = active_vm_op.unwrap();
 
     active_vm.id.key().to_string()

tests/grpc_test.rs

@@ -13,7 +13,7 @@ use detee_shared::{
 };
 use futures::StreamExt;
 use surreal_brain::constants::VM_NODE;
-use surreal_brain::db::{self, VmNodeWithReports};
+use surreal_brain::db::VmNodeWithReports;
 
 mod common;
 
@@ -39,19 +39,19 @@ async fn test_general_balance() {
 
 #[tokio::test]
 async fn test_vm_creation() {
-    prepare_test_db().await;
+    let db = prepare_test_db().await;
 
     let brain_channel = run_service_for_stream().await;
     let daemon_key = mock_vm_daemon(brain_channel.clone()).await;
 
     let key = Key::new();
 
-    let _ = create_new_vm(key.clone(), daemon_key.clone(), brain_channel.clone()).await;
+    let _ = create_new_vm(&db, key.clone(), daemon_key.clone(), brain_channel.clone()).await;
 }
 
 #[tokio::test]
 async fn test_report_node() {
-    prepare_test_db().await;
+    let db = prepare_test_db().await;
 
     let brain_channel = run_service_for_stream().await;
     let daemon_key = mock_vm_daemon(brain_channel.clone()).await;
@@ -73,7 +73,8 @@ async fn test_report_node() {
     println!("Report error: {:?}", report_error);
     assert_eq!(report_error.message(), "No contract found by this ID.");
 
-    let active_vm_id = create_new_vm(key.clone(), daemon_key.clone(), brain_channel.clone()).await;
+    let active_vm_id =
+        create_new_vm(&db, key.clone(), daemon_key.clone(), brain_channel.clone()).await;
 
     let reason = String::from("something went wrong on vm");
     let report_req = ReportNodeReq {
@@ -89,7 +90,7 @@ async fn test_report_node() {
         .unwrap()
         .into_inner();
 
-    let vm_nodes: Vec<VmNodeWithReports> = db::DB
+    let vm_nodes: Vec<VmNodeWithReports> = db
         .query(format!(
             "SELECT *, <-report.* as reports FROM {VM_NODE} WHERE id = {VM_NODE}:{daemon_key};"
         ))

tests/grpc_vm_daemon_test.rs

@@ -28,7 +28,7 @@ async fn test_reg_vm_node() {
 #[tokio::test]
 async fn test_brain_message() {
     env_logger::builder().filter_level(log::LevelFilter::Info).init();
-    let _ = prepare_test_db().await;
+    let db = prepare_test_db().await;
 
     let brain_channel = run_service_for_stream().await;
     let daemon_key = mock_vm_daemon(brain_channel.clone()).await;
@@ -51,8 +51,7 @@ async fn test_brain_message() {
     assert!(new_vm_resp.uuid.len() == 40);
 
     let id = ("measurement_args", new_vm_resp.uuid);
-    let data_in_db: detee_shared::vm_proto::MeasurementArgs =
+    let data_in_db: detee_shared::vm_proto::MeasurementArgs = db.select(id).await.unwrap().unwrap();
-        surreal_brain::db::DB.select(id).await.unwrap().unwrap();
 
     assert_eq!(data_in_db, new_vm_resp.args.unwrap());
 }