fix: build local images through the context-aware Docker CLI

scripts/orbit-local.py

@@ -45,13 +45,27 @@ def compose(*args, **kwargs):
                ORBIT_LOCAL_USER=f'{os.getuid()}:{os.getgid()}')
     # 本地环境使用 Docker 自带构建器，不占用用户选中的跨平台构建器。
     docker_context = subprocess.check_output(['docker', 'context', 'show'], text=True).strip()
-    env.update(BUILDX_BUILDER=docker_context, COMPOSE_BAKE='false')
+    env.update(DOCKER_CONTEXT=docker_context, BUILDX_BUILDER=docker_context, COMPOSE_BAKE='false')
     command = ['docker', '--context', docker_context, 'compose', '--project-name', 'orbit-test',
                '--env-file', str(ENV_FILE), '-f', str(ROOT / 'deploy/docker-compose.yml'),
                '-f', str(ROOT / 'deploy/local/compose.yml'), *args]
     return subprocess.run(command, cwd=ROOT, env=env, check=True, **kwargs)
 
 
+def build_image(values):
+    # Compose's embedded buildx can lose the selected context for a context-backed
+    # builder. Invoke the Docker CLI explicitly; do not change the user's builder.
+    docker_context = subprocess.check_output(['docker', 'context', 'show'], text=True).strip()
+    command = ['docker', '--context', docker_context, 'buildx', 'build',
+               '--builder', docker_context, '--load', '--tag', values['ORBIT_IMAGE']]
+    for source, target in [('ORBIT_BUILD_VERSION', 'VERSION'),
+                           ('ORBIT_BUILD_REVISION', 'REVISION'),
+                           ('ORBIT_BUILD_TIME', 'BUILD_TIME')]:
+        command.extend(['--build-arg', target + '=' + values[source]])
+    command.append('.')
+    subprocess.run(command, cwd=ROOT, check=True)
+
+
 def wait_ready():
     for _ in range(60):
         try:
@@ -100,7 +114,7 @@ def setup():
     values['ORBIT_BUILD_TIME'] = datetime.datetime.now(datetime.timezone.utc).strftime('%Y-%m-%dT%H:%M:%SZ')
     save_settings(values)
     compose('config', '--quiet')
-    compose('build', 'orbit')
+    build_image(values)
     # 完成构建后再优雅停止旧写节点，避免迁移期间混用凭据存储版本。
     compose('stop', 'orbit')
     compose('up', '-d', 'mysql', 'verify', 'archive-init', 'credential-key-init')