blumeops/docs/explanation/explanation.md
Erich Blume d21798b1f3 Document Dex OIDC and add services-check integration (#223)
## Summary
- Create Dex reference card (`docs/reference/services/dex.md`) with quick reference, architecture, identity source, storage, OIDC clients, secrets, and endpoints
- Write federated login explanation article (`docs/explanation/federated-login.md`) covering the Dex + Forgejo two-layer auth model, login flow, and break-glass access
- Add Dex to `services-check` (HTTP health endpoint + k3s pod check)
- Update Grafana docs with new Authentication section documenting SSO via Dex
- Update Forgejo docs with OAuth2 Provider section documenting its role as upstream identity source
- Add Dex to ringtail workloads table and reference service index
- Move `adopt-oidc-provider` plan to `completed/` with final design reflecting actual implementation

## Test plan
- [ ] `mise run services-check` passes (includes new Dex checks)
- [ ] `docs-check-links` passes (all wiki-links resolve)
- [ ] `docs-check-index` passes (new docs are indexed)

Reviewed-on: https://forge.ops.eblu.me/eblume/blumeops/pulls/223
2026-02-19 20:44:23 -08:00

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Markdown

---
title: Explanation
modified: 2026-02-10
last-reviewed: 2026-02-10
tags:
- explanation
---
# Explanation
Understanding-oriented content explaining the "why" behind BlumeOps design decisions.
## Philosophy
| Article | Description |
|---------|-------------|
| [[why-gitops]] | Why infrastructure-as-code and GitOps for a homelab |
## Design
| Article | Description |
|---------|-------------|
| [[architecture]] | How all the pieces fit together |
| [[federated-login]] | How SSO works across BlumeOps (Dex + Forgejo) |
| [[security-model]] | Network security, secrets, and access control |