在VPN环境下使用AWS Glue：开发端点能否部署于私有子网？

Great question—this is a common scenario for teams with strict network policies, and AWS absolutely supports deploying Glue dev endpoints in private subnets without public DNS or internet access. Here's a step-by-step breakdown tailored to your no-console-access workflow:

1. Create a Private Glue Dev Endpoint via CLI/Infrastructure as Code #

Since you don’t have console access, use the AWS CLI or infrastructure tools like CDK/Terraform to provision the endpoint with zero public connectivity. The critical flag here is --publicly-accessible false, which disables public DNS and prevents the endpoint from receiving a public IP.

Example CLI Command: #

aws glue create-dev-endpoint \
  --endpoint-name private-glue-dev-endpoint \
  --role-arn arn:aws:iam::YOUR_ACCOUNT_ID:role/GlueDevEndpointExecutionRole \
  --subnet-id subnet-YOUR_PRIVATE_SUBNET_ID \
  --security-group-ids sg-YOUR_SECURITY_GROUP_ID \
  --publicly-accessible false \
  --additional-python-modules "pyspark==3.3.0,pandas==1.5.3" # Match your Glue Spark version

Critical Pre-Requisites: #

• VPC Endpoints: Your private subnet needs access to core AWS services via VPC endpoints (no internet required):
  • Glue Interface VPC Endpoint (com.amazonaws.<region>.glue) for communication with the Glue control plane
  • S3 Gateway VPC Endpoint to access script files, data sources, and logs stored in S3
  • CloudWatch Logs Interface VPC Endpoint if you need to view dev endpoint logs
• IAM Role Permissions: The endpoint’s IAM role must include policies for Glue access, S3 read/write, CloudWatch Logs, and (if using Session Manager) SSM access.

2. Access the Private Dev Endpoint Without Public DNS #

Since the endpoint has no public DNS, you’ll need to connect from within your VPC using one of these methods:

• AWS Systems Manager (SSM) Session Manager: The most secure and policy-friendly option (no SSH keys needed):

  1. Add the AmazonSSMManagedInstanceCore policy to your Glue dev endpoint’s IAM role.
  2. Retrieve the endpoint’s instance ID with:

     aws glue get-dev-endpoint --endpoint-name private-glue-dev-endpoint
     

  3. Start a session via CLI:

     aws ssm start-session --target <DEV_ENDPOINT_INSTANCE_ID>
     

• Private EC2 Jump Host: Deploy an EC2 instance in the same private subnet, SSH into it, then connect to the dev endpoint using its private IP (retrieved via the get-dev-endpoint command above). Ensure your security group allows SSH traffic between the jump host and dev endpoint.

• Zeppelin Notebook in Private Subnet: Deploy Zeppelin on an EC2 instance in the same private subnet, then configure it to connect to the dev endpoint using its private IP. This lets you develop and test scripts interactively without leaving the VPC.

3. Develop & Test Scripts Without Console Access #

• Local Script Authoring: Write your PySpark/Scala scripts locally, then upload them to an S3 bucket accessible via the S3 VPC endpoint. Use the CLI to update the dev endpoint’s script location or submit test jobs:

  # Upload script to S3
  aws s3 cp your-glue-script.py s3://your-private-bucket/glue-scripts/
  
  # Start a test job run
  aws glue start-job-run --job-name your-test-job --arguments '--ScriptLocation=s3://your-private-bucket/glue-scripts/your-glue-script.py'
  

• Sync with Private Git Repo: If your VPC has access to a private Git server (e.g., AWS CodeCommit via VPC endpoint), sync scripts directly from there to the dev endpoint for collaborative development.

• Local PySpark Simulation: Use a local PySpark environment matching your Glue version to test basic logic before deploying. Use the --additional-python-modules flag to install any missing packages on the dev endpoint to match your local setup.

4. Key Policy & Security Checks #

• Verify your subnet’s route table has no internet gateway (IGW) entry—all traffic should route through VPC endpoints.
• Ensure security groups restrict inbound traffic to only trusted sources (e.g., your jump host’s IP, SSM service IPs).
• Confirm no public IP is assigned to the dev endpoint via aws glue get-dev-endpoint—the PublicAddress field should be empty.

内容的提问来源于stack exchange，提问作者Nick Clucas