admin api: first local endpoint to work with new scheme

src/api/admin/api.rs

@@ -7,11 +7,15 @@ use async_trait::async_trait;
 use paste::paste;
 use serde::{Deserialize, Serialize};
 
+use garage_rpc::*;
+
 use garage_model::garage::Garage;
 
+use crate::admin::api_server::{AdminRpc, AdminRpcResponse};
 use crate::admin::error::Error;
 use crate::admin::macros::*;
 use crate::admin::{Admin, RequestHandler};
+use crate::common_error::CommonErrorDerivative;
 use crate::helpers::is_default;
 
 // This generates the following:

src/api/admin/api_server.rs

@@ -103,8 +103,8 @@ pub struct AdminApiServer {
 	exporter: PrometheusExporter,
 	metrics_token: Option<String>,
 	admin_token: Option<String>,
-	background: Arc<BackgroundRunner>,
-	endpoint: Arc<RpcEndpoint<AdminRpc, Self>>,
+	pub(crate) background: Arc<BackgroundRunner>,
+	pub(crate) endpoint: Arc<RpcEndpoint<AdminRpc, Self>>,
 }
 
 pub enum HttpEndpoint {

src/api/admin/macros.rs

@@ -113,12 +113,17 @@ macro_rules! local_admin_endpoints {
             $(
                 #[derive(Debug, Clone, Serialize, Deserialize)]
                 pub struct [< $endpoint Request >] {
-                    node: String,
-                    body: [< Local $endpoint Request >],
+                    pub node: String,
+                    pub body: [< Local $endpoint Request >],
                 }
 
+                pub type [< $endpoint RequestBody >] = [< Local $endpoint Request >];
+
                 #[derive(Debug, Clone, Serialize, Deserialize)]
-                pub struct [< $endpoint Response >](HashMap<String, [< Local $endpoint Response >] >);
+                pub struct [< $endpoint Response >] {
+                    pub success: HashMap<String, [< Local $endpoint Response >] >,
+                    pub error: HashMap<String, String>,
+                }
 
                 impl From< [< Local $endpoint Request >] > for LocalAdminApiRequest {
                     fn from(req: [< Local $endpoint Request >]) -> LocalAdminApiRequest {
@@ -141,7 +146,56 @@ macro_rules! local_admin_endpoints {
                     type Response = [< $endpoint Response >];
 
 	                async fn handle(self, garage: &Arc<Garage>, admin: &Admin) -> Result<Self::Response, Error> {
-                        todo!()
+				        let to = match self.node.as_str() {
+                            "*" => garage.system.cluster_layout().all_nodes().to_vec(),
+                            id => {
+                                let nodes = garage.system.cluster_layout().all_nodes()
+                                    .iter()
+                                    .filter(|x| hex::encode(x).starts_with(id))
+                                    .cloned()
+                                    .collect::<Vec<_>>();
+                                if nodes.len() != 1 {
+                                    return Err(Error::bad_request(format!("Zero or multiple nodes matching {}: {:?}", id, nodes)));
+                                }
+                                nodes
+                            }
+                        };
+
+                        let resps = garage.system.rpc_helper().call_many(&admin.endpoint,
+                            &to,
+                            AdminRpc::Internal(self.body.into()),
+                            RequestStrategy::with_priority(PRIO_NORMAL),
+                        ).await?;
+
+                        let mut ret = [< $endpoint Response >] {
+                            success: HashMap::new(),
+                            error: HashMap::new(),
+                        };
+                        for (node, resp) in resps {
+                            match resp {
+                                Ok(AdminRpcResponse::InternalApiOkResponse(r)) => {
+                                    match [< Local $endpoint Response >]::try_from(r) {
+                                        Ok(r) => {
+                                            ret.success.insert(hex::encode(node), r);
+                                        }
+                                        Err(_) => {
+                                            ret.error.insert(hex::encode(node), "returned invalid value".to_string());
+                                        }
+                                    }
+                                }
+                                Ok(AdminRpcResponse::ApiErrorResponse{error_code, http_code, message}) => {
+                                    ret.error.insert(hex::encode(node), format!("{} ({}): {}", error_code, http_code, message));
+                                }
+                                Ok(_) => {
+                                    ret.error.insert(hex::encode(node), "returned invalid value".to_string());
+                                }
+                                Err(e) => {
+                                    ret.error.insert(hex::encode(node), e.to_string());
+                                }
+                            }
+                        }
+
+                        Ok(ret)
                     }
                 }
             )*

src/api/admin/router_v2.rs

@@ -58,6 +58,8 @@ impl AdminApiRequest {
 			// Bucket aliases
 			POST AddBucketAlias (body),
 			POST RemoveBucketAlias (body),
+			// Worker APIs
+			POST GetWorkerVariable (body_field, query::node),
 		]);
 
 		if let Some(message) = query.nonempty_message() {
@@ -239,6 +241,7 @@ impl AdminApiRequest {
 generateQueryParameters! {
 	keywords: [],
 	fields: [
+		"node" => node,
 		"domain" => domain,
 		"format" => format,
 		"id" => id,

src/garage/admin/mod.rs

@@ -354,62 +354,12 @@ impl AdminRpcHandler {
 					.clone();
 				Ok(AdminRpc::WorkerInfo(*tid, info))
 			}
-			WorkerOperation::Get {
-				all_nodes,
-				variable,
-			} => self.handle_get_var(*all_nodes, variable).await,
 			WorkerOperation::Set {
 				all_nodes,
 				variable,
 				value,
 			} => self.handle_set_var(*all_nodes, variable, value).await,
-		}
-	}
-
-	async fn handle_get_var(
-		&self,
-		all_nodes: bool,
-		variable: &Option<String>,
-	) -> Result<AdminRpc, Error> {
-		if all_nodes {
-			let mut ret = vec![];
-			let all_nodes = self.garage.system.cluster_layout().all_nodes().to_vec();
-			for node in all_nodes.iter() {
-				let node = (*node).into();
-				match self
-					.endpoint
-					.call(
-						&node,
-						AdminRpc::Worker(WorkerOperation::Get {
-							all_nodes: false,
-							variable: variable.clone(),
-						}),
-						PRIO_NORMAL,
-					)
-					.await??
-				{
-					AdminRpc::WorkerVars(v) => ret.extend(v),
-					m => return Err(GarageError::unexpected_rpc_message(m).into()),
-				}
-			}
-			Ok(AdminRpc::WorkerVars(ret))
-		} else {
-			#[allow(clippy::collapsible_else_if)]
-			if let Some(v) = variable {
-				Ok(AdminRpc::WorkerVars(vec![(
-					self.garage.system.id,
-					v.clone(),
-					self.garage.bg_vars.get(v)?,
-				)]))
-			} else {
-				let mut vars = self.garage.bg_vars.get_all();
-				vars.sort();
-				Ok(AdminRpc::WorkerVars(
-					vars.into_iter()
-						.map(|(k, v)| (self.garage.system.id, k.to_string(), v))
-						.collect(),
-				))
-			}
+			_ => unreachable!(),
 		}
 	}
 

src/garage/cli_v2/mod.rs

@@ -3,6 +3,8 @@ pub mod cluster;
 pub mod key;
 pub mod layout;
 
+pub mod worker;
+
 use std::convert::TryFrom;
 use std::sync::Arc;
 use std::time::Duration;
@@ -38,6 +40,7 @@ impl Cli {
 			Command::Layout(layout_opt) => self.layout_command_dispatch(layout_opt).await,
 			Command::Bucket(bo) => self.cmd_bucket(bo).await,
 			Command::Key(ko) => self.cmd_key(ko).await,
+			Command::Worker(wo) => self.cmd_worker(wo).await,
 
 			// TODO
 			Command::Repair(ro) => cli_v1::cmd_admin(
@@ -52,13 +55,6 @@ impl Cli {
 					.await
 					.ok_or_message("cli_v1")
 			}
-			Command::Worker(wo) => cli_v1::cmd_admin(
-				&self.admin_rpc_endpoint,
-				self.rpc_host,
-				AdminRpc::Worker(wo),
-			)
-			.await
-			.ok_or_message("cli_v1"),
 			Command::Block(bo) => cli_v1::cmd_admin(
 				&self.admin_rpc_endpoint,
 				self.rpc_host,

src/garage/cli_v2/worker.rs

@@ -0,0 +1,54 @@
+//use bytesize::ByteSize;
+use format_table::format_table;
+
+use garage_util::error::*;
+
+use garage_api::admin::api::*;
+
+use crate::cli::structs::*;
+use crate::cli_v2::*;
+
+impl Cli {
+	pub async fn cmd_worker(&self, cmd: WorkerOperation) -> Result<(), Error> {
+		match cmd {
+			WorkerOperation::Get {
+				all_nodes,
+				variable,
+			} => self.cmd_get_var(all_nodes, variable).await,
+			wo => cli_v1::cmd_admin(
+				&self.admin_rpc_endpoint,
+				self.rpc_host,
+				AdminRpc::Worker(wo),
+			)
+			.await
+			.ok_or_message("cli_v1"),
+		}
+	}
+
+	pub async fn cmd_get_var(&self, all: bool, var: Option<String>) -> Result<(), Error> {
+		let res = self
+			.api_request(GetWorkerVariableRequest {
+				node: if all {
+					"*".to_string()
+				} else {
+					hex::encode(self.rpc_host)
+				},
+				body: LocalGetWorkerVariableRequest { variable: var },
+			})
+			.await?;
+
+		let mut table = vec![];
+		for (node, vars) in res.success.iter() {
+			for (key, val) in vars.0.iter() {
+				table.push(format!("{:.16}\t{}\t{}", node, key, val));
+			}
+		}
+		format_table(table);
+
+		for (node, err) in res.error.iter() {
+			eprintln!("{:.16}: error: {}", node, err);
+		}
+
+		Ok(())
+	}
+}