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@devin-ai-integration devin-ai-integration bot commented Jun 30, 2025

feat: Add HTTP proxy configuration modules to CDK

Summary

This PR migrates HTTP proxy functionality from Airbyte PR #62451 into the Python CDK by adding two new reusable modules:

  • airbyte_cdk.utils.http_proxy: Utility functions for configuring HTTP proxy settings, including environment variable management, CA certificate installation, and proxy configuration
  • airbyte_cdk.models.http_proxy_config: Pydantic model for HTTP proxy configuration that connectors can embed in their configuration schemas

The implementation maintains the same proxy configuration approach from the original source-file implementation while following CDK coding standards and providing a reusable, well-tested foundation for proxy support across all Airbyte connectors.

Key features:

  • Configurable proxy URL and optional custom CA certificate
  • Automatic NO_PROXY configuration for Airbyte infrastructure endpoints
  • Environment variable management for HTTP_PROXY, HTTPS_PROXY, and SSL certificate paths
  • Comprehensive unit tests with 100% coverage
  • Pydantic v1 model with proper validation and secret handling

Review & Testing Checklist for Human

  • Verify migration accuracy: Compare the proxy configuration logic against the original implementation in PR #62451 to ensure no functionality was lost or altered
  • Review hardcoded NO_PROXY entries: Validate that AIRBYTE_NO_PROXY_ENTRIES contains all necessary Airbyte infrastructure endpoints and no incorrect entries
  • Security review of CA certificate handling: Examine the temporary file creation and environment variable setting for potential security vulnerabilities
  • Test integration with actual connector: Verify the modules work correctly when integrated with a real connector (planned for follow-up PR with source-salesforce)
  • Validate Pydantic model structure: Ensure HttpProxyConfig aligns with expected connector configuration patterns and can be easily embedded in connector specs

Recommended test plan: After this PR is merged, test the integration by updating a connector (like source-salesforce) to use the new CDK branch reference and verify that proxy configuration works end-to-end with actual HTTP requests.


Diagram

%%{ init : { "theme" : "default" }}%%
graph TD
    subgraph "CDK Structure"
        utils_init["airbyte_cdk/utils/__init__.py"]:::minor-edit
        models_init["airbyte_cdk/models/__init__.py"]:::minor-edit
        
        utils_proxy["airbyte_cdk/utils/http_proxy.py"]:::major-edit
        models_proxy["airbyte_cdk/models/http_proxy_config.py"]:::major-edit
        
        test_utils["unit_tests/utils/test_http_proxy.py"]:::major-edit
        test_models["unit_tests/models/test_http_proxy_config.py"]:::major-edit
    end
    
    subgraph "Key Components"
        configure_func["configure_custom_http_proxy()"]:::major-edit
        pydantic_model["HttpProxyConfig"]:::major-edit
        env_vars["Environment Variables<br/>(HTTP_PROXY, HTTPS_PROXY, NO_PROXY)"]:::context
        ca_cert["CA Certificate<br/>Temporary File"]:::context
    end
    
    utils_proxy --> configure_func
    models_proxy --> pydantic_model
    configure_func --> env_vars
    configure_func --> ca_cert
    
    utils_init --> utils_proxy
    models_init --> models_proxy
    
    test_utils --> utils_proxy
    test_models --> models_proxy
    
    subgraph Legend
        L1["Major Edit"]:::major-edit
        L2["Minor Edit"]:::minor-edit
        L3["Context/No Edit"]:::context
    end
    
    classDef major-edit fill:#90EE90
    classDef minor-edit fill:#87CEEB
    classDef context fill:#FFFFFF
Loading

Notes

  • This work was requested by @aaronsteers in Devin session: https://app.devin.ai/sessions/a670abea6a8e4c639ebbe981c69f9e14
  • The next step is to create a follow-up PR in the main Airbyte repository that integrates this functionality with source-salesforce using a branch reference to this CDK PR
  • All unit tests pass locally, but integration testing with actual connectors is still needed
  • The implementation follows existing CDK patterns for utility modules and Pydantic models
  • CA certificate handling creates temporary files that persist for the duration of the connector run - this is intentional for SSL verification but should be reviewed for security implications

- Add airbyte_cdk.utils.http_proxy module with proxy configuration utilities
- Add airbyte_cdk.models.http_proxy_config module with Pydantic model
- Migrate functionality from airbyte PR #62451 source-file proxy.py
- Include comprehensive unit tests for both modules
- Update module exports in __init__.py files

Co-Authored-By: AJ Steers <[email protected]>
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Original prompt from AJ Steers:

@Devin - Let's migrate the functionality from <https://github.com/airbytehq/airbyte/pull/62451>
into the Python CDK. I am thinking of adding these two modules:

```airbyte_cdk.utils.http_proxy:
 - more or less migrates over the logic from the `proxy.py` file

airbyte_cdk.models.http_proxy_config:
 - a reusable Pydantic model for configuring the proxy `{"http_proxy": {"proxy_url": "...", "proxy_ca_certificate": "..."}}
 - follow examples elsewhere for reusable connector config via pydantic models
 - if you find a better place for this module to live, lmk```
The above (plus related tests) will be in a new CDK PR

Then, you'll create a PR that uses your branch ref of the CDK to deliver the same to source-salesforce. We'll revert to a version-pinned CDK ref after the CDK is released, but this will let us test in a real world scenario before merging the CDK PR.

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@github-actions github-actions bot added the enhancement New feature or request label Jun 30, 2025
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PyTest Results (Fast)

3 699 tests  +23   3 688 ✅ +23   6m 21s ⏱️ +5s
    1 suites ± 0      11 💤 ± 0 
    1 files   ± 0       0 ❌ ± 0 

Results for commit db1e36b. ± Comparison against base commit 5824a5e.

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github-actions bot commented Jul 1, 2025

PyTest Results (Full)

3 702 tests  +23   3 691 ✅ +23   17m 58s ⏱️ -2s
    1 suites ± 0      11 💤 ± 0 
    1 files   ± 0       0 ❌ ± 0 

Results for commit db1e36b. ± Comparison against base commit 5824a5e.

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Closing due to inactivity for more than 7 days. Configure here.

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