Erich Blume
55d31c9c0b
- harden-zot-registry: fix Authentik hostname, check off all verified items, add metrics config to "what was done" - enforce-tag-immutability: fix admins permissions (was missing update) - agent-change-process: clarify that requires: is permanent and status: active is the only completion marker - zot reference: update modified date - wire-ci-registry-auth fragment: add metrics fix - Remove stale harden-zot-mikado-cards.ai.md planning fragment Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
67 lines
2.2 KiB
Markdown
67 lines
2.2 KiB
Markdown
---
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title: Zot
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modified: 2026-02-21
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tags:
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- service
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- registry
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---
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# Zot
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OCI-native container registry providing pull-through cache and private image storage.
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## Quick Reference
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| Property | Value |
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|----------|-------|
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| **URL** | https://registry.ops.eblu.me |
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| **Local Port** | 5050 |
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| **Data** | `~/zot` |
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| **Config** | `~/.config/zot/config.json` |
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| **LaunchAgent** | mcquack |
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## Namespace Convention
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| Path | Source |
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|------|--------|
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| `registry.ops.eblu.me/docker.io/*` | Cached from Docker Hub |
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| `registry.ops.eblu.me/ghcr.io/*` | Cached from GHCR |
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| `registry.ops.eblu.me/quay.io/*` | Cached from Quay |
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| `registry.ops.eblu.me/blumeops/*` | Private images |
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## Pull-Through Cache
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When [[cluster|minikube]] pulls an image, containerd checks zot first. If cached, returns immediately. If not, zot fetches from upstream, caches it, then returns.
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## Security Model
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OIDC authentication via [[authentik]], with API key support for CI. Three-tier access control:
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| Role | Permissions | Use case |
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|------|------------|----------|
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| Anonymous | read | Pull images without auth |
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| `artifact-workloads` group | read, create | CI push (new tags only, no overwrite/delete) |
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| `admins` group | read, create, update, delete | Break-glass admin access |
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CI authenticates with a zot API key generated from the `zot-ci` service account's OIDC session. The key is stored in the `Forgejo Secrets` 1Password item (field `zot-ci-api`) and synced to Forgejo Actions secrets via ansible.
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## API Key Rotation
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The `zot-ci` API key expires every **90 days**. To rotate:
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1. In Authentik admin UI, impersonate the `zot-ci` user
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2. Visit `https://registry.ops.eblu.me` — you'll land on the login page
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3. Click "SIGN IN WITH OIDC" to authenticate as zot-ci
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4. Navigate to `https://registry.ops.eblu.me/user/apikey`
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5. Generate a new API key, copy it to clipboard
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6. Update 1Password:
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```fish
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pbpaste | op item edit "Forgejo Secrets" --vault blumeops "zot-ci-api[password]=-"
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```
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7. Sync to Forgejo: `mise run provision-indri -- --tags forgejo_actions_secrets`
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## Related
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- [[forgejo]] - Container build CI
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- [[cluster|Cluster]] - Registry consumer
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- [[authentik]] - OIDC identity provider
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