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Production deployment patterns

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

6 matches

Generate a Mock Artifact Version Tag in Python

Creates a mock build artifact version tag from a branch name and build number, with a date stamp.

import re
from datetime import datetime

def mock_version_tag(branch_name: str, build_number: int) -> str:
    """Generate a mock build artifact version tag from branch and build number."""
    branch_slug = re.sub(r'[^a-zA-Z0-9]+', '-', branch_name).strip('-').lower()
    date_part = datetime.utcnow().strftime('%Y%m%…

15 0 Open

Production deployment patterns easy

Generate a docker-compose.yml with mock services in Python

Build a docker-compose.yml string from a Python dict of service names and images, then write it to a file.

docker compose yaml

Python

import yaml
from pathlib import Path

def generate_mock_compose(services: dict) -> str:
    compose = {
        "version": "3.9",
        "services": {}
    }
    
    for name, image in services.items():
        compose["services"][name] = {
            "image": image,
            "container_name": f"mock-{name}",
  …

19 0 Open

Production deployment patterns easy

How to Deploy Staging Then Production in Python

Walk through a staged deployment mock that promotes from staging to production in sequence with Python.

deployment staging production

Python

import time

def deploy_environment(name: str) -> None:
    print(f"Deploying to {name}...")
    time.sleep(0.1)
    print(f"Deployed to {name} ✔")

def deploy_staging_then_prod() -> None:
    environments = ["staging", "production"]
    for env in environments:
        deploy_environment(env)
        if env == "stagi…

14 0 Open

Production deployment patterns easy

How to Generate a Kubernetes Deployment Manifest in Python

Generate a Kubernetes Deployment manifest as YAML from a Python dictionary using PyYAML.

kubernetes yaml deployment

Python

import yaml

deployment = {
    "apiVersion": "apps/v1",
    "kind": "Deployment",
    "metadata": {
        "name": "mock-app",
        "labels": {"app": "mock-app"}
    },
    "spec": {
        "replicas": 3,
        "selector": {
            "matchLabels": {"app": "mock-app"}
        },
        "template": {
      …

13 0 Open

Production deployment patterns easy

How to build a maintenance mode page in Python

Mock a service maintenance status page that computes remaining downtime and lists affected features from a simple class.

maintenance status datetime

Python

from datetime import datetime

class MaintenanceMode:
    """Mock a maintenance mode status page for a service."""
    
    def __init__(self, service_name: str, scheduled_end: str):
        self.service_name = service_name
        self.scheduled_end = datetime.fromisoformat(scheduled_end)
        self.affected_featur…

13 0 Open

Production deployment patterns medium

Mock ConfigMap Mount Environment Variables in Python

Simulate reading environment variables from a Kubernetes ConfigMap-mounted directory and test it with mocks.

kubernetes configmap mocking

Python

import os
import tempfile
from unittest.mock import patch

def load_config_from_mount(mount_path):
    """Simulate reading environment variables from a ConfigMap-mounted directory."""
    config = {}
    for filename in os.listdir(mount_path):
        file_path = os.path.join(mount_path, filename)
        if os.path.i…

15 0 Open

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