blumeops/argocd/manifests/tailscale-operator
Erich Blume e6cf7e47e0
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Restrict flyio-proxy ACLs to dedicated tag:flyio-target endpoints (#126)
## Summary
- Introduce `tag:flyio-target` so services must explicitly opt in to be reachable by the fly.io proxy
- Replace broad `tag:k8s` and `tag:homelab` grants with the new tag in the ACL rule and test
- Add `tailscale.com/tags: "tag:k8s,tag:flyio-target"` annotation to docs, loki, and prometheus Ingresses
- Switch Alloy push endpoints from `*.ops.eblu.me` (Caddy) to `*.tail8d86e.ts.net` (Tailscale Ingress)
- Update docs: flyio-proxy, caddy, tailscale, forgejo (future public access + security checklist), expose-service-publicly

## Manual step (not in PR)
Update the k8s operator OAuth client in the Tailscale admin console to include `tag:flyio-target` in its scope. Without this, the operator cannot assign the new tag to Ingress proxy nodes.

## Deployment order
1. **Pulumi ACLs** — `mise run tailnet-preview && mise run tailnet-up`
2. **OAuth client** — Manual update in Tailscale admin console
3. **K8s Ingresses** — `argocd app sync apps && argocd app sync docs loki prometheus`
4. **Fly.io proxy** — `mise run fly-deploy`
5. **Verify** — `mise run services-check`, check Grafana dashboards

## Test plan
- [ ] `mise run tailnet-preview` shows clean diff
- [ ] `argocd app diff docs`, `argocd app diff loki`, `argocd app diff prometheus` show only annotation additions
- [ ] After deploy: Grafana dashboards show continued log/metric flow
- [ ] `curl -sf https://docs.eblu.me` returns 200
- [ ] `mise run services-check` passes

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Reviewed-on: https://forge.ops.eblu.me/eblume/blumeops/pulls/126
2026-02-08 21:54:18 -08:00
..
dnsconfig.yaml K8s Migration Phase 1: Infrastructure Setup (#29) 2026-01-19 09:49:52 -08:00
egress-forge.yaml Add Caddy layer4 for Forgejo SSH (#56) 2026-01-25 11:37:23 -08:00
external-secret.yaml Switch all ExternalSecrets to creationPolicy: Owner 2026-01-28 20:27:16 -08:00
kustomization.yaml Restrict flyio-proxy ACLs to dedicated tag:flyio-target endpoints (#126) 2026-02-08 21:54:18 -08:00
operator.yaml Pin ArgoCD to v3.2.6 (#44) 2026-01-22 16:38:27 -08:00
proxyclass.yaml Pin ArgoCD to v3.2.6 (#44) 2026-01-22 16:38:27 -08:00
proxygroup-ingress.yaml Restrict flyio-proxy ACLs to dedicated tag:flyio-target endpoints (#126) 2026-02-08 21:54:18 -08:00
README.md Add Caddy layer4 for Forgejo SSH (#56) 2026-01-25 11:37:23 -08:00

Tailscale Kubernetes Operator

Manifests for the Tailscale Kubernetes Operator, managed via ArgoCD.

Source

Prerequisites

  1. OAuth client in Tailscale admin console with:
    • Devices: Core (Read & Write) - tag: tag:k8s-operator
    • Auth Keys: Read & Write
    • Services: Write
  2. ACL with tag:k8s-operator owning tag:k8s (so operator can tag resources it creates)

Manual Bootstrap (Before ArgoCD)

Tailscale operator must be deployed before ArgoCD since ArgoCD uses Tailscale for ingress.

# 1. Create namespace
kubectl create namespace tailscale

# 2. Apply OAuth secret (uses 1Password)
op inject -i argocd/manifests/tailscale-operator/secret.yaml.tpl | kubectl apply -f -

# 3. Apply manifests via kustomize
kubectl apply -k argocd/manifests/tailscale-operator/

Ongoing Management (After ArgoCD)

Once ArgoCD is running, the operator is managed by the tailscale-operator ArgoCD Application. ArgoCD pulls manifests from forge and applies them automatically.

ArgoCD CLI Commands

# Check application status
argocd app get tailscale-operator

# Trigger a sync (pull latest from forge and apply)
argocd app sync tailscale-operator

# Preview what would change without applying
argocd app diff tailscale-operator

# View deployment history
argocd app history tailscale-operator

# Hard refresh (clear cache and re-fetch from git)
argocd app get tailscale-operator --hard-refresh

Verification

# Check operator pod is running
kubectl get pods -n tailscale

# Check operator logs
kubectl logs -n tailscale -l app.kubernetes.io/name=operator

Files

File Description
kustomization.yaml Kustomize configuration for all manifests
operator.yaml Operator deployment, CRDs, RBAC (secret removed)
proxyclass.yaml ProxyClass with fully-qualified images
dnsconfig.yaml DNSConfig for cluster-to-tailnet name resolution
egress-forge.yaml Egress proxy for accessing forge on indri
secret.yaml.tpl 1Password template for OAuth credentials (manual)
README.md This file

Notes

  • TODO: The OAuth secret (operator-oauth) is not managed by ArgoCD and must be applied manually. Future improvement: integrate with a secrets operator (e.g., External Secrets).
  • Services using the Tailscale LoadBalancer should reference the ProxyClass:
    annotations:
      tailscale.com/proxy-class: "default"
    
  • The egress proxy for forge is deprecated. Forge is now accessible via Caddy at forge.ops.eblu.me (HTTPS) and forge.ops.eblu.me:2222 (SSH), which pods can reach directly.