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Deploy Scripts

$19

Python deploy scripts with rollback support, health checks, and zero-downtime deployment patterns.

📁 9 files

JSONMarkdownPythonCI/CD

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📁 File Structure 9 files

deploy-scripts/ ├── LICENSE ├── README.md ├── examples/ │ └── deploy_config.json ├── free-sample.zip ├── guide/ │ ├── 01_features.md │ ├── 02_configuration-reference.md │ └── 03_license.md ├── index.html └── src/ └── deploy_scripts.py

📖 Documentation Preview README excerpt

Deploy Scripts

Part of the Deploy Kit by CodeVault

Production deployment workflow simulator and planner. Implements blue-green deployment, canary releases, rolling updates, and rollback strategies — all as standalone Python scripts you can study, customize, and integrate into your CI/CD pipeline.

Features

Blue-Green Deploy: Zero-downtime deployment by switching between two identical environments
Canary Deploy: Gradually shift traffic from old to new version with health validation
Rolling Update: Sequentially update instances with configurable batch size
Rollback Manager: Track deployment history and instantly revert to any previous version
All strategies simulated with realistic timing and status output
JSON deployment manifest for declarative configuration
Dry-run mode to preview what would happen
Deployment history logging to JSON file
Python stdlib only — zero dependencies

Quick Start


# Run a blue-green deployment
python src/deploy_scripts.py --config examples/deploy_config.json --strategy blue-green

# Run a canary deployment (gradually shift traffic)
python src/deploy_scripts.py --config examples/deploy_config.json --strategy canary

# Rolling update with batch size of 2
python src/deploy_scripts.py --config examples/deploy_config.json --strategy rolling --batch-size 2

# Dry run — preview without executing
python src/deploy_scripts.py --config examples/deploy_config.json --strategy blue-green --dry-run

# Rollback to previous version
python src/deploy_scripts.py --config examples/deploy_config.json --rollback

# View deployment history
python src/deploy_scripts.py --config examples/deploy_config.json --history

Configuration Reference

Field	Type	Required	Description
`app_name`	string	Yes	Application name
`version`	string	Yes	Version being deployed (e.g., `v2.1.0`)
`environment`	string	No	Target environment (default: `staging`)
`instances`	array	No	List of target hosts/instances
`health_check_url`	string	No	URL to check after deployment
`health_check_timeout`	int	No	Seconds to wait for health check (default: `30`)
`canary_steps`	array	No	Traffic percentages for canary (e.g., `[10, 25, 50, 100]`)
`rollback_on_failure`	bool	No	Auto-rollback on health check failure (default: `true`)

CLI Reference

Flag	Description
`--config`, `-c`	Path to the JSON deploy config (required)
`--strategy`, `-s`	Deploy strategy: `blue-green`, `canary`, `rolling`
`--batch-size`	Instances per batch for rolling updates (default: 1)

... continues with setup instructions, usage examples, and more.

📄 Code Sample .py preview

src/deploy_scripts.py #!/usr/bin/env python3 """ Deploy Scripts — Deploy Kit by DataNest Production deployment workflow simulator implementing blue-green, canary, and rolling update strategies with rollback support and deployment history. Why this exists: Deployment strategies like blue-green and canary are conceptually simple but tricky to implement correctly. This tool gives you working reference implementations you can study, test in dry-run mode, and adapt to your real infrastructure. It logs every step so you can audit what happened. Usage: python deploy_scripts.py --config deploy.json --strategy blue-green python deploy_scripts.py --config deploy.json --strategy canary python deploy_scripts.py --config deploy.json --strategy rolling --batch-size 2 python deploy_scripts.py --config deploy.json --rollback License: MIT """ from __future__ import annotations import argparse import json import logging import sys import time from dataclasses import dataclass, field, asdict from datetime import datetime, timezone from pathlib import Path from typing import Any # --------------------------------------------------------------------------- # Constants # --------------------------------------------------------------------------- STRATEGIES = {"blue-green", "canary", "rolling"} HISTORY_FILE = "deploy_history.json" LOG = logging.getLogger("deploy-scripts") # --------------------------------------------------------------------------- # Data Models # --------------------------------------------------------------------------- @dataclass class Instance: # ... 534 more lines ...

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