refactor: mirrored deployment envs processing

Signed-off-by: thxCode <[email protected]>

Author: thxCode

gpustack_runtime/deployer/docker.py

@@ -973,10 +973,13 @@ def _prepare_create(self):
             item.split("=", 1) for item in self_image.attrs["Config"].get("Env", [])
         )
         mirrored_envs: dict[str, str] = {
-            # Only keep envs that are different from image defaults.
+            # Filter out gpustack-internal envs and same-as-image envs.
             k: v
             for k, v in self_container_envs.items()
-            if k not in self_image_envs or v != self_image_envs[k]
+            if (
+                not k.startswith("GPUSTACK_")
+                and (k not in self_image_envs or v != self_image_envs[k])
+            )
         }
         if igs := envs.GPUSTACK_RUNTIME_DEPLOY_MIRRORED_DEPLOYMENT_IGNORE_ENVIRONMENTS:
             mirrored_envs = {

gpustack_runtime/deployer/kuberentes.py

@@ -1031,9 +1031,13 @@ def _prepare_create(self):
         mirrored_runtime_class_name: str = self_pod.spec.runtime_class_name or ""
         ## - Container envs
         mirrored_envs: list[kubernetes.client.V1EnvVar] = [
+            # Filter out gpustack-internal envs and cross-namespace secret/envref envs.
             e
             for e in self_container.env or []
-            if (not e.value_from or in_same_namespace)
+            if (
+                not e.name.startswith("GPUSTACK_")
+                and (not e.value_from or in_same_namespace)
+            )
         ]
         if igs := envs.GPUSTACK_RUNTIME_DEPLOY_MIRRORED_DEPLOYMENT_IGNORE_ENVIRONMENTS:
             mirrored_envs = [