# 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.