ai-agent-book 精选快照（<2MB 代码与文档，来自 github.com/bojieli/ai-agent-book）

chapter9/gaia-experience/AWorld/aworld/sandbox/api/kubernetes/sandbox_api.py

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+import logging
+import time
+import datetime
+import random
+import string
+from typing import Dict, List, Any, Optional
+
+from aworld.sandbox.api.base_sandbox_api import BaseSandboxApi
+from aworld.sandbox.env_client.kubernetes.client import KubernetesApiClient
+from aworld.sandbox.models import SandboxStatus, SandboxEnvType, SandboxK8sResponse
+from aworld.sandbox.run.mcp_servers import McpServers
+
+
+class KubernetesSandboxApi(BaseSandboxApi):
+    """
+    API implementation for Kubernetes sandbox operations.
+    """
+    
+    @classmethod
+    def _create_sandbox(
+        cls,
+        env_type: int,
+        env_config: Any,
+        mcp_servers: Optional[List[str]] = None,
+        mcp_config: Optional[Any] = None,
+    ) -> SandboxK8sResponse:
+        """
+        Create a Kubernetes sandbox based on the reference implementation.
+        """
+        # Initialize these variables outside the try block to avoid accessing undefined variables in exception handling
+        client = None
+        pod_name = None
+        service_name = None
+
+        try:
+            # Generate current date and time as prefix, format is yymmddHHMMSS
+            date_prefix = datetime.datetime.now().strftime("%y%m%d%H%M%S")
+            random_str = cls.generate_random_string()
+            pod_name = f"pod-{date_prefix}-{random_str}"
+            service_name = f"service-{date_prefix}-{random_str}"
+            logging.info(f"Generated pod_name: {pod_name}")
+            logging.info(f"Generated service_name: {service_name}")
+
+            client = KubernetesApiClient()
+
+            pod_result = client.create_pod_from_yaml(pod_name=pod_name)
+            if not pod_result:
+                return None
+                
+            max_attempts = 30
+            attempts = 0
+            wait_seconds = 2
+            pod_ready = False
+            pod_info = None
+            
+            while attempts < max_attempts:
+                pod_info = client.get_pod_info(pod_name)
+                pod_ready = pod_info and pod_info.get("status") == SandboxStatus.RUNNING
+                if pod_ready:
+                    break
+                attempts += 1
+                if attempts < max_attempts:
+                    logging.info(f"Waiting for Pod to be ready, attempt {attempts}/{max_attempts}")
+                    time.sleep(wait_seconds)
+                    
+            if not pod_ready:
+                logging.warning("Timed out waiting for Pod and Service to be ready")
+                client.delete_pod(pod_name)
+                return None
+
+            service_result = client.create_service_from_yaml(service_name=service_name, selector_name=pod_name)
+            if not service_result:
+                client.delete_pod(pod_name)
+                return None
+
+            max_attempts = 30
+            attempts = 0
+            wait_seconds = 2
+            service_ready = False
+            service_info = None
+            
+            while attempts < max_attempts:
+                service_info = client.get_service_info(service_name)
+                if service_info and ('LoadBalancer' == service_info.get("type") and service_info.get('host')):
+                    service_ready = True
+                elif service_info and 'ClusterIP' == service_info.get("type"):
+                    service_ready = True
+                if service_ready:
+                    time.sleep(wait_seconds)
+                    break
+                attempts += 1
+                if attempts < max_attempts:
+                    logging.info(f"Waiting for Service to be ready, attempt {attempts}/{max_attempts}")
+                    time.sleep(wait_seconds)
+                    
+            if not service_ready:
+                client.delete_pod(pod_name)
+                client.delete_service(service_name)
+                return None
+
+            if pod_ready and service_ready:
+                if mcp_servers:
+                    try:
+                        metadata = {
+                            "pod_name": pod_name,
+                            "service_name": service_name,
+                            "status": pod_info.get("status"),
+                            "cluster_ip": service_info.get("cluster_ip"),
+                            "host": service_info.get("host"),
+                        }
+                        
+                        response = cls._get_mcp_configs(
+                            mcp_servers=mcp_servers,
+                            mcp_config=mcp_config,
+                            metadata=metadata,
+                            env_type=SandboxEnvType.K8S
+                        )
+                        
+                        if response:
+                            mcp_config = response
+                    except Exception as e:
+                        logging.warning(f"Failed to get mcp configs: {e}")
+
+            return SandboxK8sResponse(
+                pod_name=pod_name,
+                service_name=service_name,
+                status=pod_info.get("status"),
+                cluster_ip=service_info.get("cluster_ip"),
+                host=service_info.get("host"),
+                mcp_config=mcp_config,
+                env_type=SandboxEnvType.K8S,
+            )
+
+        except Exception as e:
+            logging.info(f"Failed to create Sandbox by k8s: {e}")
+            # Only attempt to delete resources if client has been initialized
+            if client:
+                if pod_name:
+                    client.delete_pod(pod_name)
+                if service_name:
+                    client.delete_service(service_name)
+            return None
+    
+    @classmethod
+    def generate_random_string(cls, length=6):
+        """
+        Generate a random string of specified length.
+        """
+        characters = string.ascii_lowercase + string.digits
+        return ''.join(random.choice(characters) for _ in range(length))
+    
+    @classmethod
+    def _get_mcp_configs(
+        cls,
+        mcp_servers: Optional[List[str]] = None,
+        mcp_config: Optional[Any] = None,
+        metadata: Optional[Dict[str, str]] = None,
+        env_type: Optional[int] = None,
+    ) -> Any:
+        """
+        Get MCP configurations for the sandbox.
+        """
+        try:
+            if not metadata or (
+                    not metadata.get("cluster_ip") and not metadata.get("host")):
+                return mcp_config
+            host = metadata.get("host") or metadata.get("cluster_ip")
+
+            if not mcp_servers:
+                return None
+            if not mcp_config or mcp_config.get("mcpServers") is None:
+                mcp_config = {
+                    "mcpServers": {}
+                }
+            _mcp_servers = mcp_config.get("mcpServers")
+
+            for server in mcp_servers:
+                if server not in _mcp_servers:
+                    _mcp_servers[server] = {
+                        "type": "api",
+                        "url": f"http://{host}:80/{server}"
+                    }
+
+            return mcp_config
+        except Exception as e:
+            logging.warning(f"Failed to get_mcp_configs_from_k8s: {e}")
+            return None
+    
+    @classmethod
+    async def _remove_sandbox(
+        cls,
+        sandbox_id: Optional[str] = None,
+        metadata: Optional[Dict[str, str]] = None,
+        env_type: Optional[int] = None,
+    ) -> bool:
+        """
+        Remove the Kubernetes sandbox and clean up resources.
+        """
+        try:
+            if not sandbox_id or not metadata:
+                logging.warning(f"sandbox_id={sandbox_id} or metadata={metadata} is None")
+                return False
+
+            pod_name = metadata.get("pod_name")
+            service_name = metadata.get("service_name")
+            
+            if not pod_name or not service_name:
+                logging.warning(f"pod_name={pod_name} or service_name={service_name} is None")
+                return False
+                
+            client = KubernetesApiClient()
+            client.delete_pod(pod_name)
+            client.delete_service(service_name)
+            return True
+            
+        except Exception as e:
+            logging.warning(f"Failed to remove Sandbox: {e}")
+            return False