https://ownchain.systems/tags/firefly-iii/ Recent content in Firefly-Iii on Ownchain Systems Hugo en-us Sun, 30 Aug 2026 00:00:00 +0000 https://ownchain.systems/codex/003-container-lifecycle/ Sun, 30 Aug 2026 00:00:00 +0000 https://ownchain.systems/codex/003-container-lifecycle/ <p><strong>Classification:</strong> Operational Lifecycle &amp; Database Resilience<br> <strong>Status:</strong> Implemented &amp; Verified</p> <hr> <h2 id="executive-summary">Executive Summary</h2> <p>This report documents the failure modes, triage, and safe maintenance patterns discovered while updating multi-container microservice stacks with tightly coupled database dependencies. It analyzes race conditions during parallel image layer pulls, container recreations vs. image caching, and ensuring zero data loss during automated backend schema migrations.</p> <hr> <h2 id="the-problem-statement--failure-modes">The Problem Statement &amp; Failure Modes</h2> <p>Updating production-grade container stacks (such as Firefly III, its importer, cron sidecar, and MariaDB/MySQL backend) presents subtle operational risks if treated like simple stateless containers:</p>