feat: add discovery

Signed-off-by: kjuulh <contact@kjuulh.io>

crates/churn/src/cli.rs

@@ -2,27 +2,29 @@ use std::net::SocketAddr;
 
 use clap::{Parser, Subcommand};
 
-use crate::{agent, api, state::SharedState};
+use crate::{agent, server};
 
 pub async fn execute() -> anyhow::Result<()> {
-    let state = SharedState::new().await?;
-
     let cli = Command::parse();
     match cli.command.expect("to have a subcommand") {
-        Commands::Serve { host } => {
+        Commands::Serve {
+            host,
+            grpc_host,
+            config,
+        } => {
             tracing::info!("Starting service");
-
-            notmad::Mad::builder()
-                .add(api::Api::new(&state, host))
-                .run()
-                .await?;
+            server::execute(host, grpc_host, config).await?;
         }
         Commands::Agent { commands } => match commands {
-            AgentCommands::Start { host } => {
+            AgentCommands::Start {} => {
                 tracing::info!("starting agent");
-                agent::execute(host).await?;
+                agent::execute().await?;
                 tracing::info!("shut down agent");
             }
+            AgentCommands::Setup { force, discovery } => {
+                agent::setup_config(discovery, force).await?;
+                tracing::info!("wrote default agent config");
+            }
         },
     }
 
@@ -41,6 +43,12 @@ enum Commands {
     Serve {
         #[arg(env = "SERVICE_HOST", long, default_value = "127.0.0.1:3000")]
         host: SocketAddr,
+
+        #[arg(env = "SERVICE_GRPC_HOST", long, default_value = "127.0.0.1:7900")]
+        grpc_host: SocketAddr,
+
+        #[clap(flatten)]
+        config: server::config::ServerConfig,
     },
     Agent {
         #[command(subcommand)]
@@ -50,8 +58,12 @@ enum Commands {
 
 #[derive(Subcommand)]
 enum AgentCommands {
-    Start {
-        #[arg(env = "SERVICE_HOST", long = "service-host")]
-        host: String,
+    Start {},
+    Setup {
+        #[arg(long, default_value = "false")]
+        force: bool,
+
+        #[arg(env = "DISCOVERY_HOST", long = "discovery")]
+        discovery: String,
     },
 }