6f303dbbaa
Infrastructure:
- Stack now runs on K3s v1.34.6 HA (3 Hetzner CX33 nodes as managers)
- Traefik DaemonSet + hostNetwork replaces Caddy + ingress mesh
- All manifests in deploy-k3s/manifests/; Swarm config (deploy/) kept
temporarily for reference
Bug fixes surfaced during migration:
- Dockerfile: golang:1.24-alpine -> 1.25-alpine (go.mod requires 1.25)
- cache_service.go: remove sync.Once reassignment from inside Do()
callback (was causing 'unlock of unlocked mutex' fatal after
Redis Ping failure)
- router.go: relax CSP from 'default-src none' to 'default-src self'
+ allowlist fonts.googleapis.com so the marketing landing page CSS
actually loads in browsers
- deploy/scripts/deploy_prod.sh: use docker buildx with
--platform linux/amd64 so arm64 (Apple Silicon) dev machines produce
images runnable on x86_64 Hetzner nodes; fix array expansion under
set -u
- deploy/swarm-stack.prod.yml: fix secret source references to use
top-level aliases (the '\${X_SECRET}' form never actually resolved);
dozzle ports: long-form host_ip is rejected by Swarm, switched to
short-form (bound to 0.0.0.0 with UFW-based loopback restriction);
worker replicas 2 -> 1 (Asynq scheduler singleton)
- deploy-k3s/manifests/admin/deployment.yaml: probe path '/admin/' -> '/'
(Next.js serves at root; /admin/ returned 404 and killed pods);
startupProbe failureThreshold 12 -> 24
- deploy-k3s/manifests/pod-disruption-budgets.yaml: worker minAvailable
1 -> 0 (singleton)
- deploy-k3s/manifests/api/deployment.yaml: startupProbe failureThreshold
12 -> 48 (MigrateWithLock serializes across 3 replicas on first-boot;
real startup takes up to 240s)
- .gitignore: tighten 'api' -> '/api' (was matching deploy-k3s/manifests/api/
and admin/src/app/api/*, hiding legitimate files)
New files:
- deploy-k3s/manifests/traefik-helmchartconfig.yaml: DaemonSet +
hostNetwork override for k3s-bundled Traefik
- deploy-k3s/manifests/ingress/ingress-simple.yaml: plain Ingress
without TLS (CF Flexible SSL) and without middleware
- deploy-k3s/MIGRATION_NOTES.md: operator-facing migration log
Documentation:
- docs/deployment/ — full deployment book, 26 files, ~42k words:
- Part I Overview, infrastructure, orchestrator choice (Ch 0-2)
- Part II Networking, firewall, Cloudflare (Ch 3-4, 13)
- Part III Security, Traefik ingress (Ch 5-6)
- Part IV Services, DB, storage, secrets, registry (Ch 7-11)
- Part V Data flow, deploy process, observability, failures, runbook
(Ch 12, 14-17)
- Part VI Cost, Swarm postmortem, roadmap (Ch 18-20)
- Appendices: glossary, kubectl cheat sheet, file locations,
consolidated citations
- README.md: Production Deployment section replaced with pointer to
the book; Go version bumped to 1.25
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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9.5 KiB
Appendix C — File Locations
Complete map of where every significant file lives — on the operator workstation, in the git repo, and on the Hetzner nodes.
Operator workstation
Kubernetes
| Path | Purpose |
|---|---|
~/.kube/honeydue-k3s.yaml |
kubeconfig for the k3s cluster. Contains an admin bearer token. Mode 0600. |
~/.kube/config |
Default kubeconfig (points elsewhere, not our cluster). |
Set KUBECONFIG=~/.kube/honeydue-k3s.yaml before any kubectl command.
SSH
| Path | Purpose |
|---|---|
~/.ssh/hetzner |
Private key for node SSH (ed25519). Mode 0600. |
~/.ssh/hetzner.pub |
Public key corresponding to above. |
~/.ssh/config |
Host aliases for hetzner1/hetzner2/hetzner3 → node IPs. |
Public key content:
ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBU9xTTBD78tYUqHijgyU9PDqtmS4NuM/6uy8XgDzva+ hetzner2@myhoneydue.com
Docker
| Path | Purpose |
|---|---|
~/.docker/config.json |
Docker CLI config. After docker login to Gitea, contains creds. Log out after each deploy to not leave PATs on disk. |
~/Library/Containers/com.docker.docker/ |
Docker Desktop state (macOS). |
Git repo (/Users/treyt/Desktop/code/honeyDue/honeyDueAPI-go/)
Top-level
| Path | Purpose |
|---|---|
CLAUDE.md |
Project-wide instructions for Claude assistant. Never commit secrets here. |
Dockerfile |
Multi-stage Docker build: api, worker, admin targets. |
go.mod, go.sum |
Go module definition. |
package.json (admin-ui/) |
Next.js dependencies. |
Application code
| Path | Purpose |
|---|---|
cmd/api/main.go |
API server entry point. |
cmd/worker/main.go |
Background worker entry point. |
cmd/admin/main.go |
(may or may not exist for Go admin variant) |
internal/config/ |
Viper configuration loading. |
internal/database/ |
Postgres connection, migrations. |
internal/handlers/ |
HTTP handlers (one file per domain). |
internal/services/ |
Business logic. cache_service.go is where the sync.Once bug was (Chapter 19). |
internal/repositories/ |
GORM repositories. |
internal/router/router.go |
Echo routes, including static file serving. CSP is set here. |
internal/middleware/ |
Echo middleware (auth, logging, etc.). |
internal/task/ |
Task predicates/scopes/categorization. See docs/TASK_LOGIC_ARCHITECTURE.md. |
Deploy config (Swarm era — still exists, unused)
| Path | Purpose |
|---|---|
deploy/ |
Legacy Swarm deploy root. |
deploy/prod.env |
Non-secret config (ConfigMap source). Gitignored. |
deploy/registry.env |
Gitea PAT + registry URL. Gitignored. |
deploy/cluster.env |
Swarm cluster settings. Partly used for k3s too (manager host). Gitignored. |
deploy/secrets/postgres_password.txt |
Neon password. Gitignored. |
deploy/secrets/secret_key.txt |
App signing key (≥32 chars). Gitignored. |
deploy/secrets/email_host_password.txt |
Fastmail password. Gitignored. |
deploy/secrets/fcm_server_key.txt |
FCM key (placeholder, push off). Gitignored. |
deploy/secrets/apns_auth_key.p8 |
APNs key (placeholder, push off). Gitignored. |
deploy/swarm-stack.prod.yml |
Swarm stack definition. Unused after migration. |
deploy/Caddyfile |
Caddy config. Unused after migration. |
deploy/scripts/deploy_prod.sh |
Swarm deploy script. Unused. |
deploy/DEPLOYING.md, deploy/README.md, deploy/shit_deploy_cant_do.md |
Swarm-era docs. Historical reference. |
Deploy config (k3s)
| Path | Purpose |
|---|---|
deploy-k3s/README.md |
k3s deployment README (scaffold version). |
deploy-k3s/MIGRATION_NOTES.md |
Notes from Swarm → k3s migration. |
deploy-k3s/SECURITY.md |
Security posture doc (scaffold). |
deploy-k3s/config.yaml.example |
Template for a unified config.yaml (unused — we kept Swarm's file layout). |
deploy-k3s/manifests/namespace.yaml |
Creates honeydue namespace. |
deploy-k3s/manifests/rbac.yaml |
ServiceAccounts + automountServiceAccountToken: false. |
deploy-k3s/manifests/pod-disruption-budgets.yaml |
PDBs for api (2/3) and worker (0/1). |
deploy-k3s/manifests/network-policies.yaml |
Default-deny + allows. NOT currently applied. |
deploy-k3s/manifests/api/deployment.yaml |
api Deployment. |
deploy-k3s/manifests/api/service.yaml |
api ClusterIP Service. |
deploy-k3s/manifests/api/hpa.yaml |
api HorizontalPodAutoscaler. NOT currently applied. |
deploy-k3s/manifests/admin/deployment.yaml |
admin Deployment. |
deploy-k3s/manifests/admin/service.yaml |
admin Service. |
deploy-k3s/manifests/worker/deployment.yaml |
worker Deployment. |
deploy-k3s/manifests/redis/deployment.yaml |
Redis Deployment. |
deploy-k3s/manifests/redis/service.yaml |
Redis Service. |
deploy-k3s/manifests/redis/pvc.yaml |
Redis PersistentVolumeClaim. |
deploy-k3s/manifests/ingress/ingress.yaml |
Full Ingress with TLS + middleware (scaffold; needs CF origin cert). |
deploy-k3s/manifests/ingress/ingress-simple.yaml |
Simple Ingress without TLS (what we actually apply). |
deploy-k3s/manifests/ingress/middleware.yaml |
Traefik middleware CRDs. Not currently applied. |
deploy-k3s/manifests/traefik-helmchartconfig.yaml |
Our DaemonSet + hostNetwork override for Traefik. |
deploy-k3s/manifests/secrets.yaml.example |
Template (never deployed). |
deploy-k3s/scripts/01-provision-cluster.sh |
hetzner-k3s provisioning (we didn't use it; existing nodes). |
deploy-k3s/scripts/02-setup-secrets.sh |
Creates Secrets + ConfigMap (scaffold version; we ran commands manually). |
deploy-k3s/scripts/03-deploy.sh |
Applies manifests (unused; we ran kubectl manually). |
deploy-k3s/scripts/04-verify.sh |
Post-deploy verification. |
deploy-k3s/scripts/rollback.sh |
Rollback helper. |
Documentation
| Path | Purpose |
|---|---|
docs/deployment/ |
This book. |
docs/TASK_LOGIC_ARCHITECTURE.md |
Task logic internals. |
docs/PUSH_NOTIFICATIONS.md |
Push notifications setup (for future). |
docs/SUBSCRIPTION_WEBHOOKS.md |
Apple/Google subscription webhooks. |
docs/Dokku_notes |
Pre-Swarm era deployment notes. Historical. |
docs/server_2026_2_24.md |
Earlier architecture doc (predates k3s migration). |
On the Hetzner nodes
System
| Path | Purpose |
|---|---|
/etc/ssh/sshd_config |
SSH config — PermitRootLogin no, PasswordAuthentication no, AllowUsers deploy. |
/etc/sudoers.d/deploy |
deploy ALL=(ALL) NOPASSWD: ALL. |
/etc/ufw/ |
UFW configuration. See Chapter 4 for rule inventory. |
/etc/sysctl.d/99-unprivileged-ports.conf |
net.ipv4.ip_unprivileged_port_start=0 for Traefik. |
/home/deploy/.ssh/authorized_keys |
Our hetzner.pub. |
K3s
| Path | Purpose |
|---|---|
/etc/rancher/k3s/k3s.yaml |
Kubeconfig (localhost-scoped; we copied to workstation). |
/etc/systemd/system/k3s.service |
systemd service file. |
/etc/systemd/system/k3s.service.env |
K3s install args (INSTALL_K3S_EXEC). |
/var/lib/rancher/k3s/ |
K3s state root (etcd, containerd, PVC storage). |
/var/lib/rancher/k3s/server/node-token |
Token for joining additional nodes. |
/var/lib/rancher/k3s/storage/ |
local-path PVC storage. Redis data lives here. |
/var/lib/rancher/k3s/agent/containerd/ |
containerd state. |
/var/log/containers/ |
Container log files. |
Commands installed
| Path | Purpose |
|---|---|
/usr/local/bin/k3s |
The k3s binary. |
/usr/local/bin/kubectl |
Symlink to k3s (CLI for this cluster). |
/usr/local/bin/crictl |
containerd CLI. |
/usr/local/bin/k3s-killall.sh |
Emergency kill-all-k3s script. |
/usr/local/bin/k3s-uninstall.sh |
Clean uninstall script. |
Docker (legacy; disabled)
| Path | Purpose |
|---|---|
/etc/systemd/system/docker.service |
systemd unit (stopped + disabled). |
/var/lib/docker/ |
Docker state (unused on current cluster). |
On Cloudflare
Not a filesystem, but worth noting the dashboard hierarchy:
Websites → myhoneydue.com
├── DNS → Records (A records for api, admin, @)
├── SSL/TLS → Overview (SSL mode: Flexible)
├── SSL/TLS → Edge Certificates (Always Use HTTPS: On)
├── SSL/TLS → Origin Server (would live the Origin CA cert if we enabled it)
├── Rules → Overview (where Origin Rules live if we had them)
├── Rules → Page Rules (none)
├── Security → WAF (managed rules only)
├── Speed → Optimization (default)
└── Analytics & Logs (read-only stats)
On Gitea (gitea.treytartt.com)
The image registry lives at:
gitea.treytartt.com/admin/-/packages # UI listing of all packages
gitea.treytartt.com/admin/-/packages/container/honeydue-api # API image
gitea.treytartt.com/admin/-/packages/container/honeydue-worker # Worker image
gitea.treytartt.com/admin/-/packages/container/honeydue-admin # Admin image
Per-version tags visible in the UI with docker pull commands.
PATs at gitea.treytartt.com/-/user/settings/applications.
On Neon
console.neon.tech → project → Branches (production branch default)
console.neon.tech → project → Monitoring (CU-hour usage, slow queries)
console.neon.tech → project → Operations (history of schema changes)
Connection strings at console.neon.tech → project → Connection Details.
On Backblaze B2
secure.backblaze.com/b2_buckets.htm # Buckets list
secure.backblaze.com/b2_app_keys.htm # App keys
honeyDueProd bucket → Files tab for browsing contents.