feat: add agent settings configuration and update agent client service

apps/api/src/configs.rs

@@ -1,3 +1,4 @@
+pub mod agent;
 pub mod auth;
 pub mod database;
 pub mod logging;
@@ -21,6 +22,7 @@ pub struct ProgramSettings {
     pub database: database::DatabaseSettings,
     pub server: server::ServerSettings,
     pub auth: auth::AuthSettings,
+    pub agent: agent::AgentSettings,
 }
 
 impl FromConfig for ProgramSettings {
@@ -30,6 +32,7 @@ impl FromConfig for ProgramSettings {
             database: database::DatabaseSettings::from_config(_config)?,
             server: server::ServerSettings::from_config(_config)?,
             auth: auth::AuthSettings::from_config(_config)?,
+            agent: agent::AgentSettings::from_config(_config)?,
         };
         config.validate()?;
         Ok(config)
@@ -50,6 +53,7 @@ impl FromConfig for ProgramSettings {
             database: database::DatabaseSettings::mock(),
             server: server::ServerSettings::mock(),
             auth: auth::AuthSettings::mock(),
+            agent: agent::AgentSettings::mock(),
         }
     }
 }

apps/api/src/configs/agent.rs

@@ -0,0 +1,58 @@
+use config::Config;
+use tracing::error;
+
+use crate::configs::key::AGENT_SOCK_PATH_KEY;
+
+use super::FromConfig;
+
+#[derive(Debug, Clone)]
+pub struct AgentSettings {
+    pub socket_path: String,
+}
+
+impl FromConfig for AgentSettings {
+    fn from_config(_config: &Config) -> Result<Self, String> {
+        Ok(AgentSettings {
+            socket_path: _config.get_string(AGENT_SOCK_PATH_KEY).map_err(|err| {
+                format!(
+                    "Failed to get {} from configuration. Err: {}",
+                    AGENT_SOCK_PATH_KEY, err
+                )
+            })?,
+        })
+    }
+
+    fn validate(&self) -> Result<(), String> {
+        // ensure socket_path exists and is readable and writable
+        if !std::path::Path::new(&self.socket_path).exists() {
+            let msg = format!("Agent socket path '{}' does not exist", self.socket_path);
+            error!("{}", msg);
+            return Err(msg);
+        }
+        if std::path::Path::new(&self.socket_path)
+            .metadata()
+            .map(|meta| {
+                let permissions = meta.permissions();
+                // Check read and write permissions for the owner
+                !permissions.readonly()
+            })
+            .unwrap_or(false)
+        {
+            Ok(())
+        } else {
+            let msg = format!(
+                "Agent socket path '{}' is not readable/writable",
+                self.socket_path
+            );
+            error!("{}", msg);
+            Err(msg)
+        }
+    }
+
+    #[cfg(test)]
+    fn mock() -> Self {
+        AgentSettings {
+            socket_path: "/tmp/agent.sock".to_string(),
+        }
+    }
+}

apps/api/src/configs/key.rs

@@ -14,3 +14,5 @@ pub(crate) const DATABASE_MIGRATE_ON_STARTUP_KEY: &str = "DATABASE.MIGRATION.MIG
 pub(crate) const AUTH_JWT_SECRET_KEY: &str = "AUTH.JWT_SECRET";
 pub(crate) const AUTH_DEFAULT_ADMIN_USERNAME_KEY: &str = "AUTH.DEFAULT_ADMIN_USERNAME";
 pub(crate) const AUTH_DEFAULT_ADMIN_PASSWORD_KEY: &str = "AUTH.DEFAULT_ADMIN_PASSWORD";
+//
+pub(crate) const AGENT_SOCK_PATH_KEY: &str = "AGENT.SOCK.PATH";

apps/api/src/services/agent_client.rs

@@ -14,6 +14,7 @@ impl AgentService {
         }
     }
 
+    #[allow(dead_code)]
     pub fn get_client(&self) -> Arc<ApiClient> {
         Arc::clone(&self.client)
     }