Add "What Is Immutable Infrastructure?" explainer#20120
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…tructure explainer New what-is explainer covering the immutable model: replace-don't-patch, golden images/Packer, containers, blue-green and immutable updates, the mutable-vs-immutable contrast, benefits, trade-offs, and how it prevents drift. Grounded in primary sources (AWS Well-Architected, Kubernetes and HashiCorp docs, the original Chad Fowler and Martin Fowler posts). Cross-links the drift, IaC, configuration-management, and cloud-security explainers plus the replaceOnChanges/deleteBeforeReplace resource options. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Your site preview for commit 217c838 is ready! 🎉 http://www-testing-pulumi-docs-origin-pr-20120-217c838d.s3-website.us-west-2.amazonaws.com |
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What this adds
A new what-is explainer: What Is Immutable Infrastructure? (
content/what-is/what-is-immutable-infrastructure.md). It's a natural sibling to the drift explainer (#20098) — immutability is the structural way to prevent drift, and the cloud-security explainer already name-drops "immutable infrastructure" without anywhere to point.What it covers
replaceOnChanges,deleteBeforeReplace, provider-API-driven replacement, scheduled drift detection as the safety net)Sourcing
Factual claims (definitions, historical attributions/dates, AWS/Kubernetes/HashiCorp mechanics) were grounded against primary sources via a fact-check research pass before drafting. Claims that couldn't be verified to a primary source (e.g. a specific coiner for "pets vs cattle", specific adoption stats) are deliberately framed as metaphor/engineering reasoning rather than asserted as cited fact.
Notes
make lint(markdown); title is Title Case, H2s sentence case, meta_desc under 160.what-is-cloud-security.md(which mentions "immutable infrastructure" unlinked) once this is live.🤖 Generated with Claude Code