Reference library

Production deployment patterns

Graceful shutdown, prod config, rollouts, readiness probes, and ship-with-confidence checks.

3 matches

Automate Semantic Versioning with Conventional Commits in Python

Automatically bump a semantic version based on conventional commit messages (feat, fix, BREAKING CHANGE) and write the new version to a file.

semantic-versioning conventional-commits automation

Python

import re
from pathlib import Path


def get_next_version(current: str, commit_messages: list[str]) -> str:
    """Return the next semantic version based on conventional commit messages."""
    major, minor, patch = map(int, current.split("."))
    if any(msg.startswith("BREAKING CHANGE") for msg in commit_messages):
…

15 0 Open

Production deployment patterns medium

How to Mock Canary Deployment Traffic Split in Python

Simulate a canary deployment's stable/canary traffic split using deterministic request hashing to mock rollout behavior with precise percentage control.

canary-deployment traffic-split simulation

Python

class CanaryDeployment:
    def __init__(self, stable_weight: float = 0.9, canary_weight: float = 0.1):
        self.stable_weight = stable_weight
        self.canary_weight = canary_weight
        self.total_weight = stable_weight + canary_weight

    def route_request(self, request_id: int) -> str:
        """Route …

14 0 Open

Production deployment patterns medium

How to Mock Kubernetes Secret Mounts in Python

Create and inspect a mock Kubernetes secret volume mount using the official client library and unittest.mock.

kubernetes mock testing

Python

import json
from kubernetes import client, config, watch
from unittest.mock import Mock, patch

def create_mock_mount_spec():
    """Create a mock Kubernetes secret volume mount."""
    mock_client = Mock()
    mock_client.api_version = "v1"
    mock_client.kind = "Secret"
    mock_client.metadata = {"name": "my-secre…

14 0 Open

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