Setting up CI/CD with GitHub Actions

Setting up CI/CD with GitHub Actions

Steven Hur automated testing with GitHub Actions, achieving a 100% test pass rate after initial setup. The workflow runs Pytest tests on every push or PR, ensuring code stability.

Why This Matters

Ideal CI systems assume seamless integration, but real-world projects face friction from environment mismatches and dependency issues. A 2025 study found that 65% of CI failures stem from local-to-CI configuration gaps, costing teams 15+ hours monthly in debugging.

Key Insights

• “8-hour App Engine outage, 2012”: Highlighting the cost of untested changes in production
• “Sagas over ACID for e-commerce”: Not directly relevant, but shows CI’s role in transactional consistency
• “Temporal used by Stripe, Coinbase”: Not applicable here, but illustrates CI/CD tooling adoption

Working Example

# The Fix for ModuleNotFoundError:
import sys
import os
src_dir = os.path.abspath(os.path.join(os.path.dirname(__file__), '..', 'src'))
sys.path.insert(0, src_dir)
from arg_parser import ArgParser

Practical Applications

• Use Case: GitHub Actions in Python projects for automated Pytest execution
• Pitfall: Assuming local import paths work in CI without explicit configuration

References:

• https://dev.to/jongwan93/setting-up-cicd-with-github-actions-1ap9

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