Rename gateway core.admin.admin_token to auth_token (alias-compatible)

dstack/gateway/docs/cluster-deployment.md

@@ -289,7 +289,7 @@ Important:
 
 ### 2.7 Verify Cluster Sync
 
-The admin API requires a bearer token (see `core.admin.admin_token` in `gateway.toml`,
+The admin API requires a bearer token (see `core.admin.auth_token` in `gateway.toml`,
 or the `ADMIN_API_TOKEN` env injected by `deploy-to-vmm.sh`). Export it once:
 
 ```bash

dstack/gateway/dstack-app/builder/entrypoint.sh

@@ -95,7 +95,7 @@ sync_connections_interval = "${SYNC_CONNECTIONS_INTERVAL:-30s}"
 enabled = true
 address = "${ADMIN_LISTEN_ADDR:-0.0.0.0}"
 port = ${ADMIN_LISTEN_PORT:-8001}
-admin_token = "${ADMIN_API_TOKEN}"
+auth_token = "${ADMIN_API_TOKEN}"
 
 [core.wg]
 public_key = "$PUBLIC_KEY"

dstack/gateway/gateway.toml

@@ -28,8 +28,8 @@ address = "127.0.0.1:8011"
 # be supplied via the `DSTACK_GATEWAY_ADMIN_TOKEN` or `ADMIN_API_TOKEN` env
 # vars. Clients send it as `Authorization: Bearer <token>`, `X-Admin-Token`,
 # or (GET only, for dashboard links) `?token=...`. Required unless
-# `insecure_no_auth = true`.
-admin_token = ""
+# `insecure_no_auth = true`. (The legacy key `admin_token` is still accepted.)
+auth_token = ""
 # Optional Apache htpasswd file for HTTP Basic authentication.
 htpasswd_file = ""
 # Development/testing escape hatch only. Never enable this on an admin

dstack/gateway/src/admin_auth.rs

@@ -23,8 +23,8 @@ impl AdminAuthFairing {
                 http_config(),
             )));
         }
-        let token = if !config.admin_token.is_empty() {
-            config.admin_token.trim().to_owned()
+        let token = if !config.auth_token.is_empty() {
+            config.auth_token.trim().to_owned()
         } else {
             std::env::var(ENV_ADMIN_TOKEN)
                 .or_else(|_| std::env::var(ENV_ADMIN_TOKEN_COMPAT))
@@ -34,8 +34,8 @@ impl AdminAuthFairing {
         };
         if token.is_empty() && config.htpasswd_file.as_os_str().is_empty() {
             bail!(
-                "admin API is enabled but neither admin_token nor htpasswd_file is configured; \
-                 set core.admin.admin_token, {ENV_ADMIN_TOKEN}, {ENV_ADMIN_TOKEN_COMPAT}, \
+                "admin API is enabled but neither auth_token nor htpasswd_file is configured; \
+                 set core.admin.auth_token, {ENV_ADMIN_TOKEN}, {ENV_ADMIN_TOKEN_COMPAT}, \
                  core.admin.htpasswd_file, or insecure_no_auth = true (testing only)"
             );
         }

dstack/gateway/src/config.rs

@@ -296,8 +296,10 @@ pub struct AdminConfig {
     /// Shared secret required to call any admin endpoint (RPC + dashboard).
     /// Can also be supplied via `DSTACK_GATEWAY_ADMIN_TOKEN` / `ADMIN_API_TOKEN`
     /// env vars. Required unless `insecure_no_auth = true`.
-    #[serde(default)]
-    pub admin_token: String,
+    ///
+    /// Accepts the legacy `admin_token` key for backward compatibility.
+    #[serde(default, alias = "admin_token")]
+    pub auth_token: String,
     /// Optional Apache htpasswd file. Enables standard HTTP Basic auth while
     /// preserving token authentication for existing clients.
     #[serde(default)]
@@ -354,8 +356,25 @@ pub fn setup_wireguard(config: &WgConfig) -> Result<()> {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use rocket::figment::providers::{Format, Toml};
     use std::str::FromStr;
 
+    #[test]
+    fn admin_auth_token_reads_new_and_legacy_keys() {
+        // new key
+        let cfg: AdminConfig =
+            Figment::from(Toml::string("enabled = true\nauth_token = \"new\"\n"))
+                .extract()
+                .unwrap();
+        assert_eq!(cfg.auth_token, "new");
+        // legacy `admin_token` key still deserializes via the serde alias
+        let cfg: AdminConfig =
+            Figment::from(Toml::string("enabled = true\nadmin_token = \"legacy\"\n"))
+                .extract()
+                .unwrap();
+        assert_eq!(cfg.auth_token, "legacy");
+    }
+
     #[test]
     fn test_validate() {
         // Valid configuration

dstack/gateway/test-run/e2e/configs/gateway-1.toml

@@ -19,7 +19,7 @@ rpc_domain = "gateway-1"
 enabled = true
 port = 9016
 address = "0.0.0.0"
-admin_token = "e2e-admin-token"
+auth_token = "e2e-admin-token"
 
 [core.debug]
 insecure_enable_debug_rpc = true

dstack/gateway/test-run/e2e/configs/gateway-2.toml

@@ -19,7 +19,7 @@ rpc_domain = "gateway-2"
 enabled = true
 port = 9016
 address = "0.0.0.0"
-admin_token = "e2e-admin-token"
+auth_token = "e2e-admin-token"
 
 [core.debug]
 insecure_enable_debug_rpc = true

dstack/gateway/test-run/e2e/configs/gateway-3.toml

@@ -19,7 +19,7 @@ rpc_domain = "gateway-3"
 enabled = true
 port = 9016
 address = "0.0.0.0"
-admin_token = "e2e-admin-token"
+auth_token = "e2e-admin-token"
 
 [core.debug]
 insecure_enable_debug_rpc = true

dstack/gateway/test-run/e2e/test.sh

@@ -22,7 +22,7 @@ GATEWAY_PROXIES="gateway-1:9014 gateway-2:9014 gateway-3:9014"
 GATEWAY_DEBUG_URLS="http://gateway-1:9015 http://gateway-2:9015 http://gateway-3:9015"
 GATEWAY_ADMIN="http://gateway-1:9016"
 
-# Must match `admin_token` in configs/gateway-*.toml
+# Must match `auth_token` in configs/gateway-*.toml
 ADMIN_TOKEN="e2e-admin-token"
 ADMIN_AUTH_HEADER="Authorization: Bearer ${ADMIN_TOKEN}"