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Production deployment patterns

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

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Production deployment patterns easy

How to Roll Back to a Previous Image Tag in Python

A dataclass-based mock registry that tracks image tag history and rolls back to the previous tag, useful for deployment rollback logic.

rollback deployment dataclass
Python 
"""Demonstrates a rollback pattern for a Docker-style image tag registry."""

from dataclasses import dataclass, field


@dataclass
class ImageRegistry:
    """A minimal mock registry tracking current tags per image."""

    tags: dict[str, list[str]] = field(default_factory=dict)

    def push(self, image: str, tag: …
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