# Infrastructure Repository Knowledge ## Instructions for Claude - **When the user says "remember" something**: Always update this file (`.claude/CLAUDE.md`) with the information so it persists across sessions - **When discovering new patterns or versions**: Add them to the appropriate section below - **When making infrastructure changes**: Always update this file to reflect the current state (new services, removed services, version changes, config changes) - **After every significant change**: Proactively update this file (`.claude/CLAUDE.md`) to reflect what changed — new services, config changes, version bumps, new patterns, etc. This ensures knowledge persists across sessions automatically. - **After updating any `.claude/` files**: Always commit them immediately (`git add .claude/ && git commit -m "[ci skip] update claude knowledge"`) to avoid building up unstaged changes. - **Skills available**: Check `.claude/skills/` directory for specialized workflows (e.g., `setup-project.md` for deploying new services) - **CRITICAL: All infrastructure changes must go through Terraform/Terragrunt**. NEVER modify cluster resources directly (e.g., via kubectl apply/edit/patch, helm install, docker run). Always make changes in the Terraform `.tf` files and apply with `terragrunt apply`. The real cluster state must never deviate from what's defined in Terraform — if a manual change is unavoidable (e.g., containerd config on running nodes), document it and ensure the Terraform templates match so future provisioning is consistent. Use `kubectl` only for read-only operations (get, describe, logs) and ephemeral debugging (run --rm, delete stuck pods), never for persistent state changes. - **CRITICAL: NEVER put sensitive data (API keys, passwords, tokens, credentials) into committed files** unless they are encrypted (e.g., via git-crypt). Secrets belong in `terraform.tfvars` (which is git-crypt encrypted) or in the `secrets/` directory. Never hardcode credentials in `.tf` files, scripts, `.claude/` files, or any other unencrypted committed file. Always pass secrets through the Terraform variable chain (`terraform.tfvars` → `main.tf` → module variables). - **CRITICAL: NEVER commit secrets** — triple-check before every commit that no API keys, passwords, tokens, or credentials are included in unencrypted files. This is a hard rule with zero exceptions. - **New services MUST have CI/CD**: Set up Drone CI pipeline (`.drone.yml`) with GitHub/GitLab repo integration. Services should auto-build and auto-deploy. - **New services MUST have monitoring**: Every new service should have monitoring via Prometheus (alerts/metrics) and/or Uptime Kuma (HTTP health checks). Add both when possible. ## Execution Environment - **File operations**: Read, Edit, Write, Glob, Grep tools - **Git commands**: git status, git log, git diff, git add, git commit, git reset, etc. - **Shell commands**: All tools (terraform, terragrunt, kubectl, helm, python, etc.) are available locally - **CRITICAL: Always run terragrunt/terraform locally**, never on the remote server via SSH: ```bash cd stacks/ && terragrunt apply --non-interactive ``` - **kubectl**: Use `kubectl --kubeconfig $(pwd)/config` for cluster access - **GitHub API**: Use `curl` with token from tfvars (see GitHub & Drone CI section below). `gh` CLI is blocked by sandbox restrictions. - **Drone CI API**: Use `curl` with token from tfvars (see GitHub & Drone CI section below). --- ## Overview Terragrunt-based infrastructure repository managing a home Kubernetes cluster on Proxmox VMs, with per-service state isolation. Each service has its own Terragrunt stack under `stacks/`, enabling fast, independent plan/apply cycles. Uses git-crypt for secrets encryption. ## Static File Paths (NEVER CHANGE) - **Main config**: `terraform.tfvars` - All secrets, DNS, Cloudflare config, WireGuard peers - **Root Terragrunt**: `terragrunt.hcl` - Root Terragrunt config (providers, backend, var loading) - **Service stacks**: `stacks//` - Individual service stacks (each has `terragrunt.hcl` + `main.tf` with resources inline) - **Infra stack**: `stacks/infra/` - Proxmox VM resources (templates, docker-registry, VMs) - **Platform stack**: `stacks/platform/` - Core infrastructure services (22 modules in `modules/` subdir) - **Per-stack state**: `state/stacks//terraform.tfstate` - Per-stack state files (gitignored) - **Service resources**: `stacks//main.tf` - Service resources defined directly in stack root - **Platform modules**: `stacks/platform/modules//` - Platform service modules - **Shared modules**: `modules/kubernetes/ingress_factory/`, `modules/kubernetes/setup_tls_secret/` - **Secrets**: `secrets/` - git-crypt encrypted TLS certs and keys ## Network Topology (Static IPs) ``` ┌─────────────────────────────────────────────────────────────────┐ │ 10.0.10.0/24 - Management Network │ ├─────────────────────────────────────────────────────────────────┤ │ 10.0.10.10 - Wizard (main server) │ │ 10.0.10.15 - NFS Server (TrueNAS) - /mnt/main/* │ └─────────────────────────────────────────────────────────────────┘ ┌─────────────────────────────────────────────────────────────────┐ │ 10.0.20.0/24 - Kubernetes Network │ ├─────────────────────────────────────────────────────────────────┤ │ 10.0.20.1 - pfSense Gateway │ │ 10.0.20.10 - Docker Registry VM (MAC: DE:AD:BE:EF:22:22) │ │ 10.0.20.100 - k8s-master │ │ 10.0.20.101 - Technitium DNS │ │ 10.0.20.102 - MetalLB IP Pool Start │ │ 10.0.20.200 - MetalLB IP Pool End │ └─────────────────────────────────────────────────────────────────┘ ┌─────────────────────────────────────────────────────────────────┐ │ 192.168.1.0/24 - Physical Network │ ├─────────────────────────────────────────────────────────────────┤ │ 192.168.1.127 - Proxmox Hypervisor │ └─────────────────────────────────────────────────────────────────┘ ``` ## Domains - **Public**: `viktorbarzin.me` (Cloudflare-managed) - **Internal**: `viktorbarzin.lan` (Technitium DNS) ## Directory Structure - `terragrunt.hcl` - Root Terragrunt configuration (providers, backend, variable loading) - `stacks/` - Individual Terragrunt stacks (one per service) - `stacks/infra/` - Proxmox VM resources (templates, docker-registry) - `stacks/platform/` - Core infrastructure (22 services in `stacks/platform/modules/`) - `stacks//` - Individual service stacks (resources directly in `main.tf`) - `stacks/platform/modules//` - Platform service module source code - `modules/kubernetes/` - **Only shared utility modules**: `ingress_factory/`, `setup_tls_secret/` - `modules/create-vm/` - Proxmox VM creation module - `state/` - Per-stack Terraform state files (gitignored) - `secrets/` - Encrypted secrets (TLS certs, keys) via git-crypt - `cli/` - Go CLI tool for infrastructure management - `scripts/` - Helper scripts (cluster management, node updates) - `playbooks/` - Ansible playbooks for node configuration - `diagram/` - Infrastructure diagrams (Python-based) ## Key Patterns - Each service in `modules/kubernetes//main.tf` defines its own namespace, deployments, services, and ingress - NFS storage from `10.0.10.15` for persistent data - TLS secrets managed via `setup_tls_secret` module - Ingress uses Traefik (Helm chart, 3 replicas) with HTTP/3 (QUIC) enabled, Middleware CRDs for rate limiting, auth, CSP headers, CrowdSec bouncer, and analytics injection - HTTP/3 enabled on Traefik (`http3.enabled=true`, `advertisedPort=443` on websecure entrypoint) and Cloudflare (`cloudflare_zone_settings_override` with `http3="on"`) - GPU workloads use `node_selector = { "gpu": "true" }` - Services expose to `*.viktorbarzin.me` domains ### NFS Volume Pattern **Prefer inline NFS volumes** over separate PV/PVC resources. Use the `nfs {}` block directly in pod/deployment/cronjob specs: ```hcl volume { name = "data" nfs { server = "10.0.10.15" path = "/mnt/main/" } } ``` Only use PV/PVC when the Helm chart requires `existingClaim` (like the Nextcloud Helm chart). ### Adding NFS Exports To add a new NFS exported directory: 1. Edit `secrets/nfs_directories.txt` - add the new directory path, keep the list sorted 2. Run `secrets/nfs_exports.sh` from the `secrets/` directory to update the NFS share via TrueNAS API ### Factory Pattern (for multi-user services) Used when a service needs one instance per user. Structure: ``` stacks// ├── main.tf # Namespace, TLS secret, user module calls └── factory/ └── main.tf # Deployment, service, ingress templates with ${var.name} ``` Examples: `actualbudget`, `freedify` To add a new user: 1. Export NFS share at `/mnt/main//` in TrueNAS 2. Add Cloudflare route in tfvars 3. Add module block in main.tf calling factory ### Init Container Pattern (for database migrations) Use when a service needs to run database migrations before starting: ```hcl init_container { name = "migration" image = "service-image:tag" command = ["sh", "-c", "migration-command"] dynamic "env" { for_each = local.common_env content { name = env.value.name value = env.value.value } } } ``` Example: AFFiNE runs `node ./scripts/self-host-predeploy.js` in init container. ### SMTP/Email Configuration When configuring services to use the mailserver: - **Use public hostname**: `mail.viktorbarzin.me` (for TLS cert validation) - **Do NOT use**: `mailserver.mailserver.svc.cluster.local` (TLS cert mismatch) - **Port**: 587 (STARTTLS) - **Credentials**: Use existing accounts from `mailserver_accounts` in tfvars - **Common email**: `info@viktorbarzin.me` for service notifications ### Terragrunt Architecture - Root `terragrunt.hcl` provides DRY provider, backend, and variable loading for all stacks - Each stack contains its resources directly: `stacks//main.tf` has variable declarations, locals, and all Terraform resources inline - Platform modules live at `stacks/platform/modules//`, referenced as `source = "./modules/"` - Shared utility modules (`ingress_factory`, `setup_tls_secret`, `dockerhub_secret`, `oauth-proxy`) remain at `modules/kubernetes/` and are referenced with relative paths from each module - State isolation: each stack has its own state file at `state/stacks//terraform.tfstate` - Dependencies: service stacks depend on `platform` stack via `dependency` block in their `terragrunt.hcl` - Variables loaded from `terraform.tfvars` automatically (unused vars silently ignored via `extra_arguments`) - `secrets/` symlinks in each stack for TLS cert resolution (`path.root` workaround) - Terragrunt v0.99+: use `--non-interactive` (not `--terragrunt-non-interactive`) - run-all syntax: `terragrunt run --all -- ` (not `terragrunt run-all`) - The `platform` stack bundles ~22 core services that have cross-dependencies (traefik, monitoring, authentik, etc.) - Individual service stacks are for services that can be deployed independently ### Adding a New Service When adding a new service to the cluster: 1. Create `stacks//` directory with: - `terragrunt.hcl` - Include root config, declare `platform` dependency - `main.tf` - All resources defined directly (variables, locals, namespace, deployments, services, ingress) - `secrets` - Symlink to `../../secrets` (for TLS cert path resolution) 2. Add Cloudflare DNS record in `terraform.tfvars` (`cloudflare_proxied_names` or `cloudflare_non_proxied_names`) 3. Apply the cloudflared stack: `cd stacks/platform && terragrunt apply --non-interactive` 4. Apply the new service: `cd stacks/ && terragrunt apply --non-interactive` ## Common Variables - `tls_secret_name` - TLS certificate secret name - `tier` - Deployment tier label - Service-specific passwords passed as variables ## Service Versions (as of 2026-02) - Immich: v2.4.1 - Freedify: latest (music streaming, factory pattern) - AFFiNE: stable (visual canvas, uses PostgreSQL + Redis) - Wyoming Whisper: latest (STT for Home Assistant, CPU on GPU node) - Health: latest (Apple Health data dashboard, Svelte + FastAPI + Caddy, uses PostgreSQL) - Gramps Web: latest (genealogy, uses Redis + Celery) - Loki: 3.6.5 (log aggregation, single binary, 6Gi RAM, 24h in-memory chunks) - Alloy: v1.13.0 (log collector DaemonSet, forwards to Loki) - OpenClaw: 2026.2.9 (AI agent gateway, authentik-protected) ## Useful Commands ```bash # Cluster health check — ALWAYS use this to check cluster status bash scripts/cluster_healthcheck.sh # Full color report bash scripts/cluster_healthcheck.sh --quiet # Only WARN/FAIL bash scripts/cluster_healthcheck.sh --json # Machine-readable bash scripts/cluster_healthcheck.sh --fix # Auto-delete evicted pods # Apply a single service stack cd stacks/ && terragrunt apply --non-interactive # Plan a single service stack cd stacks/ && terragrunt plan --non-interactive # Plan all stacks (full DAG) cd stacks && terragrunt run --all --non-interactive -- plan # Apply all stacks (full DAG) cd stacks && terragrunt run --all --non-interactive -- apply # Format all terraform files terraform fmt -recursive kubectl get pods -A ``` **Cluster Health Check** (`scripts/cluster_healthcheck.sh`): - **ALWAYS use this script** to check cluster health — whether the user asks explicitly, after deploying/updating services, or whenever you need to verify cluster state. Never use ad-hoc kubectl commands to assess overall cluster health; use the script instead. - Runs 24 checks: nodes, resources, conditions, pods, evicted, DaemonSets, deployments, PVCs, HPAs, CronJobs, CrowdSec, ingress, Prometheus alerts, Uptime Kuma, ResourceQuota pressure, StatefulSets, node disk, Helm releases, Kyverno, NFS, DNS, TLS certs, GPU, Cloudflare tunnel - **When adding new healthchecks or monitoring**: Always update this script to validate the new component **Terragrunt apply examples:** - `cd stacks/monitoring && terragrunt apply --non-interactive` - Apply monitoring - `cd stacks/immich && terragrunt apply --non-interactive` - Apply immich - `cd stacks/infra && terragrunt apply --non-interactive` - Apply Proxmox VMs / docker registry - `cd stacks/platform && terragrunt apply --non-interactive` - Apply all core/platform services **IMPORTANT: When deploying a new service**, you must ALSO apply the `platform` stack (which includes `cloudflared`) to create the Cloudflare DNS record: ```bash cd stacks/platform && terragrunt apply --non-interactive ``` Adding a name to `cloudflare_non_proxied_names` or `cloudflare_proxied_names` in `terraform.tfvars` only defines the record — it won't be created until the platform stack (which contains cloudflared) is applied. ## Stack Structure Terragrunt stacks under `stacks/`: - `stacks/infra/` - Proxmox VMs, templates, docker-registry - `stacks/platform/` - Core infrastructure (~22 services in `modules/` subdir) - `stacks//` - Individual service stacks (resources directly in `main.tf`) Each stack's `terragrunt.hcl` includes the root `terragrunt.hcl` which provides: - Kubernetes + Helm providers (configured from `terraform.tfvars`) - Local backend with per-stack state file (`state/stacks//terraform.tfstate`) - Automatic loading of `terraform.tfvars` with unused vars ignored --- ## Complete Service Catalog ### Critical - Network & Auth (Tier: core) | Service | Description | Stack | |---------|-------------|-------| | wireguard | VPN server | platform | | technitium | DNS server (10.0.20.101) | platform | | headscale | Tailscale control server | platform | | traefik | Ingress controller (Helm) | platform | | xray | Proxy/tunnel | platform | | authentik | Identity provider (SSO) | platform | | cloudflared | Cloudflare tunnel | platform | | authelia | Auth middleware | platform | | monitoring | Prometheus/Grafana/Loki stack | platform | ### Storage & Security (Tier: cluster) | Service | Description | Stack | |---------|-------------|-------| | vaultwarden | Bitwarden-compatible password manager | platform | | redis | Shared Redis at `redis.redis.svc.cluster.local` | platform | | immich | Photo management (GPU) | immich | | nvidia | GPU device plugin | platform | | metrics-server | K8s metrics | platform | | uptime-kuma | Status monitoring | platform | | crowdsec | Security/WAF | platform | | kyverno | Policy engine | platform | ### Admin | Service | Description | Stack | |---------|-------------|-------| | k8s-dashboard | Kubernetes dashboard | platform | | reverse-proxy | Generic reverse proxy | platform | ### Active Use | Service | Description | Stack | |---------|-------------|-------| | mailserver | Email (docker-mailserver) | mailserver | | shadowsocks | Proxy | shadowsocks | | webhook_handler | Webhook processing | webhook_handler | | tuya-bridge | Smart home bridge | tuya-bridge | | dawarich | Location history | dawarich | | owntracks | Location tracking | owntracks | | nextcloud | File sync/share | nextcloud | | calibre | E-book management | calibre | | onlyoffice | Document editing | onlyoffice | | f1-stream | F1 streaming | f1-stream | | rybbit | Analytics | rybbit | | isponsorblocktv | SponsorBlock for TV | isponsorblocktv | | actualbudget | Budgeting (factory pattern) | actualbudget | ### Optional | Service | Description | Stack | |---------|-------------|-------| | blog | Personal blog | blog | | descheduler | Pod descheduler | descheduler | | drone | CI/CD | drone | | hackmd | Collaborative markdown | hackmd | | kms | Key management | kms | | privatebin | Encrypted pastebin | privatebin | | vault | HashiCorp Vault | vault | | reloader | ConfigMap/Secret reloader | reloader | | city-guesser | Game | city-guesser | | echo | Echo server | echo | | url | URL shortener | url | | excalidraw | Whiteboard | excalidraw | | travel_blog | Travel blog | travel_blog | | dashy | Dashboard | dashy | | send | Firefox Send | send | | ytdlp | YouTube downloader | ytdlp | | wealthfolio | Finance tracking | wealthfolio | | audiobookshelf | Audiobook server | audiobookshelf | | paperless-ngx | Document management | paperless-ngx | | jsoncrack | JSON visualizer | jsoncrack | | servarr | Media automation (Sonarr/Radarr/etc) | servarr | | ntfy | Push notifications | ntfy | | cyberchef | Data transformation | cyberchef | | diun | Docker image update notifier | diun | | meshcentral | Remote management | meshcentral | | homepage | Dashboard/startpage | homepage | | matrix | Matrix chat server | matrix | | linkwarden | Bookmark manager | linkwarden | | changedetection | Web change detection | changedetection | | tandoor | Recipe manager | tandoor | | n8n | Workflow automation | n8n | | real-estate-crawler | Property crawler | real-estate-crawler | | tor-proxy | Tor proxy | tor-proxy | | forgejo | Git forge | forgejo | | freshrss | RSS reader | freshrss | | navidrome | Music streaming | navidrome | | networking-toolbox | Network tools | networking-toolbox | | stirling-pdf | PDF tools | stirling-pdf | | speedtest | Speed testing | speedtest | | freedify | Music streaming (factory pattern) | freedify | | netbox | Network documentation | netbox | | infra-maintenance | Maintenance jobs | infra-maintenance | | ollama | LLM server (GPU) | ollama | | frigate | NVR/camera (GPU) | frigate | | ebook2audiobook | E-book to audio (GPU) | ebook2audiobook | | affine | Visual canvas/whiteboard (PostgreSQL + Redis) | affine | | health | Apple Health data dashboard (PostgreSQL) | health | | whisper | Wyoming Faster Whisper STT (CPU on GPU node) | whisper | | grampsweb | Genealogy web app (Gramps Web) | grampsweb | | openclaw | AI agent gateway (OpenClaw) | openclaw | --- ## Cloudflare Domains ### Proxied (CDN + WAF enabled) ``` blog, hackmd, privatebin, url, echo, f1tv, excalidraw, send, audiobookshelf, jsoncrack, ntfy, cyberchef, homepage, linkwarden, changedetection, tandoor, n8n, stirling-pdf, dashy, city-guesser, travel, netbox ``` ### Non-Proxied (Direct DNS) ``` mail, wg, headscale, immich, calibre, vaultwarden, drone, mailserver-antispam, mailserver-admin, webhook, uptime, owntracks, dawarich, tuya, meshcentral, nextcloud, actualbudget, onlyoffice, forgejo, freshrss, navidrome, ollama, openwebui, isponsorblocktv, speedtest, freedify, rybbit, paperless, servarr, prowlarr, bazarr, radarr, sonarr, flaresolverr, jellyfin, jellyseerr, tdarr, affine, health, family, openclaw ``` ### Special Subdomains - `*.viktor.actualbudget` - Actualbudget factory instances - `*.freedify` - Freedify factory instances - `mailserver.*` - Mail server components (antispam, admin) --- ## CI/CD - Drone CI (`.drone.yml`) for automated deployments - Auto-updates TLS certificates - **ALWAYS add `[ci skip]` to commit messages** when you've already run `terraform apply` to avoid triggering CI redundantly - **After committing, run `git push origin master`** to sync changes ## GitHub & Drone CI ### GitHub API Access - **Username**: `ViktorBarzin` - **Token location**: `terraform.tfvars` as `github_pat` (git-crypt encrypted) - **Read token**: `grep github_pat terraform.tfvars | cut -d'"' -f2` - **Scopes**: Full access — `repo`, `admin:public_key`, `admin:repo_hook`, `delete_repo`, `admin:org`, `workflow`, `write:packages`, and more - **`gh` CLI**: Blocked by sandbox restrictions — use `curl` with the GitHub API instead #### Common API Patterns ```bash # Read token from tfvars GITHUB_TOKEN=$(grep github_pat terraform.tfvars | cut -d'"' -f2) # List repos curl -s -H "Authorization: token $GITHUB_TOKEN" "https://api.github.com/users/ViktorBarzin/repos?per_page=100" # Create repo curl -s -X POST -H "Authorization: token $GITHUB_TOKEN" "https://api.github.com/user/repos" \ -d '{"name":"repo-name","private":true}' # Add deploy key curl -s -X POST -H "Authorization: token $GITHUB_TOKEN" "https://api.github.com/repos/ViktorBarzin//keys" \ -d '{"title":"key-name","key":"ssh-ed25519 ...","read_only":false}' # Create webhook (e.g., for Drone CI) curl -s -X POST -H "Authorization: token $GITHUB_TOKEN" "https://api.github.com/repos/ViktorBarzin//hooks" \ -d '{"config":{"url":"https://drone.viktorbarzin.me/hook","content_type":"json","secret":"..."},"events":["push","pull_request"]}' # Get repo info curl -s -H "Authorization: token $GITHUB_TOKEN" "https://api.github.com/repos/ViktorBarzin/" ``` ### Drone CI API Access - **Server**: `https://drone.viktorbarzin.me` - **Token location**: `terraform.tfvars` as `drone_api_token` (git-crypt encrypted) - **Read token**: `grep drone_api_token terraform.tfvars | cut -d'"' -f2` - **Username**: `ViktorBarzin` #### Common API Patterns ```bash # Read token from tfvars DRONE_TOKEN=$(grep drone_api_token terraform.tfvars | cut -d'"' -f2) # List repos curl -s -H "Authorization: Bearer $DRONE_TOKEN" "https://drone.viktorbarzin.me/api/repos" # Activate repo in Drone curl -s -X POST -H "Authorization: Bearer $DRONE_TOKEN" "https://drone.viktorbarzin.me/api/repos/ViktorBarzin/" # Trigger build curl -s -X POST -H "Authorization: Bearer $DRONE_TOKEN" "https://drone.viktorbarzin.me/api/repos/ViktorBarzin//builds" # Get build info curl -s -H "Authorization: Bearer $DRONE_TOKEN" "https://drone.viktorbarzin.me/api/repos/ViktorBarzin//builds/" # Add secret to repo curl -s -X POST -H "Authorization: Bearer $DRONE_TOKEN" "https://drone.viktorbarzin.me/api/repos/ViktorBarzin//secrets" \ -d '{"name":"secret_name","data":"secret_value"}' ``` ### Capabilities With these tokens, Claude can: - **GitHub**: Create/delete repos, push code, manage SSH/deploy keys, manage webhooks, manage org settings, manage packages - **Drone CI**: Activate repos, trigger/monitor builds, manage secrets, configure pipelines ## Infrastructure - Proxmox hypervisor for VMs (192.168.1.127) - Kubernetes cluster with GPU node (5 nodes: k8s-master + k8s-node1-4, running v1.34.2) - NFS server at 10.0.10.15 for storage - Redis shared service at `redis.redis.svc.cluster.local` - Docker registry pull-through cache at 10.0.20.10 (static IP via cloud-init) - Port 5000: docker.io (Docker Hub, with auth) - Port 5010: ghcr.io - Port 5020: quay.io - Port 5030: registry.k8s.io - Port 5040: reg.kyverno.io - Worker nodes use `config_path = "/etc/containerd/certs.d"` with per-registry `hosts.toml` files - k8s-master does NOT use pull-through cache (containerd 1.6.x incompatibility with config_path + mirrors) ### Proxmox Host Hardware - **CPU**: Intel Xeon E5-2699 v4 @ 2.20GHz (22 cores / 44 threads, single socket) - **RAM**: 142 GB (Dell R730 server) - **GPU**: NVIDIA Tesla T4 (PCIe passthrough to k8s-node1) - **Disks**: 1.1TB + 931GB + 10.7TB (local storage) - **Proxmox access**: `ssh root@192.168.1.127` ### Proxmox Network Bridges - **vmbr0**: Physical bridge on `eno1`, IP `192.168.1.127/24` — connects to physical/home network (192.168.1.0/24) - **vmbr1**: Internal-only bridge (no physical port), VLAN-aware — carries VLAN 10 (management 10.0.10.0/24) and VLAN 20 (kubernetes 10.0.20.0/24) ### Proxmox VM Inventory | VMID | Name | Status | CPUs | RAM | Network | Disk | Notes | |------|------|--------|------|-----|---------|------|-------| | 101 | pfsense | running | 8 | 16GB | vmbr0, vmbr1:vlan10, vmbr1:vlan20 | 32G | Gateway/firewall, routes between all networks | | 102 | devvm | running | 16 | 8GB | vmbr1:vlan10 | 100G | Development VM on management network | | 103 | home-assistant | running | 8 | 16GB | vmbr1:vlan10(down), vmbr0 | 32G | Home Assistant, net0 link disabled, uses vmbr0 | | 105 | pbs | stopped | 16 | 8GB | vmbr1:vlan10 | 32G | Proxmox Backup Server (not in use) | | 200 | k8s-master | running | 8 | 16GB | vmbr1:vlan20 | 64G | Kubernetes control plane (10.0.20.100) | | 201 | k8s-node1 | running | 16 | 24GB | vmbr1:vlan20 | 128G | GPU node, Tesla T4 passthrough (hostpci0) | | 202 | k8s-node2 | running | 8 | 16GB | vmbr1:vlan20 | 64G | K8s worker node | | 203 | k8s-node3 | running | 8 | 16GB | vmbr1:vlan20 | 64G | K8s worker node | | 204 | k8s-node4 | running | 8 | 16GB | vmbr1:vlan20 | 64G | K8s worker node | | 220 | docker-registry | running | 4 | 4GB | vmbr1:vlan20 | 64G | Terraform-managed, MAC DE:AD:BE:EF:22:22 (10.0.20.10) | | 300 | Windows10 | running | 16 | 8GB | vmbr0 | 100G | Windows VM on physical network | | 9000 | truenas | running | 16 | 16GB | vmbr1:vlan10 | 32G+7×256G+1T | NFS server (10.0.10.15), multiple data disks | #### VM Templates (stopped, used for cloning) | VMID | Name | Purpose | |------|------|---------| | 1000 | ubuntu-2404-cloudinit-non-k8s-template | Base template for non-K8s VMs | | 1001 | docker-registry-template | Template for docker registry VM | | 2000 | ubuntu-2404-cloudinit-k8s-template | Base template for K8s nodes | #### Network Connectivity Summary - **pfSense (101)** bridges all three networks: physical (vmbr0), management VLAN 10, and kubernetes VLAN 20 - **K8s cluster** (200-204) + **docker-registry** (220) are all on VLAN 20 (kubernetes network) - **TrueNAS** (9000) + **devvm** (102) + **PBS** (105) are on VLAN 10 (management network) - **Home Assistant** (103) is on physical network (vmbr0), with a disabled VLAN 10 interface - **Windows10** (300) is on physical network (vmbr0) only ### GPU Node (k8s-node1) - **VMID**: 201 - **PCIe Passthrough**: `0000:06:00.0` (NVIDIA Tesla T4) - **Taint**: `nvidia.com/gpu=true:NoSchedule` - Only GPU workloads can run here - **Label**: `gpu=true` - GPU workloads must have both: - `node_selector = { "gpu": "true" }` - `toleration { key = "nvidia.com/gpu", operator = "Equal", value = "true", effect = "NoSchedule" }` - Taint is applied via `null_resource.gpu_node_taint` in `modules/kubernetes/nvidia/main.tf` ## Git Operations (IMPORTANT) - **Git is slow** on this repo due to many files - commands can take 30+ seconds - Use `GIT_OPTIONAL_LOCKS=0` prefix if git hangs - Always commit only specific files you changed, not everything - **ALWAYS ask user before pushing to remote** - never push without explicit confirmation ## Prometheus Alerts - Alert rules are in `modules/kubernetes/monitoring/prometheus_chart_values.tpl` - Under `serverFiles.alerting_rules.yml.groups` - Groups: "R730 Host", "Nvidia Tesla T4 GPU", "Power", "Cluster" - kube-state-metrics provides: `kube_deployment_*`, `kube_statefulset_*`, `kube_daemonset_*` ## Tier System - **0-core**: Critical infrastructure (ingress, DNS, VPN, auth) - **1-cluster**: Cluster services (Redis, metrics, security) - **2-gpu**: GPU workloads (Immich, Ollama, Frigate) - **3-edge**: User-facing services - **4-aux**: Optional/auxiliary services ### Resource Governance (Kyverno-based) Four layers of noisy-neighbor protection, all defined in `modules/kubernetes/kyverno/resource-governance.tf`: 1. **PriorityClasses**: `tier-0-core` (1M) through `tier-4-aux` (200K). `tier-4-aux` uses `preemption_policy=Never`. 2. **LimitRange defaults** (Kyverno generate): Auto-creates `tier-defaults` LimitRange in namespaces based on tier label. Only affects containers without explicit resources. 3. **ResourceQuotas** (Kyverno generate): Auto-creates `tier-quota` ResourceQuota in namespaces with tier labels. Excludes namespaces with `resource-governance/custom-quota=true` label. 4. **Priority injection** (Kyverno mutate): Sets `priorityClassName` on Pods based on namespace tier label. **Custom quota override**: Add label `resource-governance/custom-quota: "true"` to namespace, then define a custom `kubernetes_resource_quota` in the service's Terraform module. Currently used by: monitoring, crowdsec. **LimitRange defaults by tier**: | Tier | Default Req | Default Limit | Max | |------|------------|--------------|-----| | 0-core | 100m/128Mi | 2/4Gi | 8/16Gi | | 1-cluster | 100m/128Mi | 2/4Gi | 4/8Gi | | 2-gpu | 100m/256Mi | 4/8Gi | 8/16Gi | | 3-edge | 50m/128Mi | 1/2Gi | 4/8Gi | | 4-aux | 25m/64Mi | 500m/1Gi | 2/4Gi | **ResourceQuota hard limits by tier**: | Tier | Req CPU | Req Mem | Lim CPU | Lim Mem | Pods | |------|---------|---------|---------|---------|------| | 0-core | 8 | 8Gi | 32 | 64Gi | 100 | | 1-cluster | 4 | 4Gi | 16 | 32Gi | 30 | | 2-gpu | 8 | 8Gi | 48 | 96Gi | 40 | | 3-edge | 4 | 4Gi | 16 | 32Gi | 30 | | 4-aux | 2 | 2Gi | 8 | 16Gi | 20 | --- ## User Preferences ### Calendar - **Default calendar**: Nextcloud (always use unless otherwise specified) - **Nextcloud URL**: `https://nextcloud.viktorbarzin.me` - **CalDAV endpoint**: `https://nextcloud.viktorbarzin.me/remote.php/dav/calendars///` ### Home Assistant - **Default smart home**: Home Assistant (always use for smart home control) - **Two deployments**: - **ha-london** (default): `https://ha-london.viktorbarzin.me` | Script: `.claude/home-assistant.py` | SSH: `ssh pi@192.168.8.103`, config at `/home/pi/docker/homeAssistant/` - **ha-sofia**: `https://ha-sofia.viktorbarzin.me` | Script: `.claude/home-assistant-sofia.py` | SSH: `ssh vbarzin@192.168.1.8`, config at `/config/` - **Aliases**: "ha" or "HA" = ha-london. "ha sofia" or "ha-sofia" = ha-sofia. ### Development - **Frontend framework**: Svelte (user is learning it, so use Svelte for all new web apps) ### Pod Monitoring After Updates - **Never use `sleep` to wait for pods** — instead, spawn a background subagent (Task tool with `run_in_background: true`) that continuously checks pod state (e.g., `kubectl get pods -n -w`) and reports back when the pod is ready or if errors occur. This catches CrashLoopBackOff, ImagePullBackOff, and other failures much sooner than periodic sleep-based polling. --- ## Skills & Workflows Skills are specialized workflows for common tasks. Located in `.claude/skills/`. ### Available Skills **setup-project** (`.claude/skills/setup-project/SKILL.md`) - Deploy new self-hosted services from GitHub repos - Automated workflow: Docker image → Terraform module → Deploy - Handles database setup, ingress, DNS configuration - **When to use**: User provides GitHub URL or wants to deploy a new service - **Example**: "Deploy [GitHub repo] to the cluster" **extend-vm-storage** (`.claude/skills/extend-vm-storage/SKILL.md`) - Extend disk storage on K8s node VMs (Proxmox-hosted) - Automates: drain → shutdown → resize → boot → expand filesystem → uncordon - **When to use**: A k8s node needs more disk space - **Example**: "Extend storage on k8s-node2 by 64G" --- ## Service-Specific Notes ### Authentik (Identity Provider) - **Helm Chart**: `authentik` v2025.10.3 from `https://charts.goauthentik.io/` - **URL**: `https://authentik.viktorbarzin.me` - **API**: `https://authentik.viktorbarzin.me/api/v3/` - **API Token**: Stored in `terraform.tfvars` as `authentik_api_token` (non-expiring, superuser, identifier: `claude-code-permanent`). Read with: `grep authentik_api_token terraform.tfvars | cut -d'"' -f2` - **Namespace**: `authentik` (tier: cluster) - **Architecture**: 3 server replicas + 3 worker replicas + 3 PgBouncer replicas + 1 embedded outpost - **Database**: PostgreSQL via `postgresql.dbaas:5432`, pooled through PgBouncer at `pgbouncer.authentik:6432` - **Redis**: Shared at `redis.redis.svc.cluster.local` - **Terraform**: `modules/kubernetes/authentik/main.tf` (Helm), `pgbouncer.tf` (connection pooling) #### Authentik API Management To call the API, use: ```bash curl -s -H "Authorization: Bearer " "https://authentik.viktorbarzin.me/api/v3//" ``` Key API endpoints: - `core/users/` — List/create/update/delete users - `core/groups/` — List/create/update/delete groups - `core/applications/` — List/create applications - `providers/all/` — List all providers (OAuth2, Proxy, etc.) - `providers/oauth2/` — OAuth2/OIDC providers specifically - `providers/proxy/` — Proxy providers (forward auth) - `flows/instances/` — List flows - `stages/all/` — List stages - `sources/all/` — List sources (Google, GitHub, etc.) - `outposts/instances/` — List outposts - `propertymappings/all/` — List property mappings - `rbac/roles/` — List roles #### Current Applications (9) | Application | Provider Type | Auth Flow | |-------------|--------------|-----------| | Cloudflare Access | OAuth2/OIDC | explicit consent | | Domain wide catch all | Proxy (forward auth) | implicit consent | | Grafana | OAuth2/OIDC | implicit consent | | Headscale | OAuth2/OIDC | explicit consent | | Immich | OAuth2/OIDC | explicit consent | | Kubernetes | OAuth2/OIDC (public) | implicit consent | | linkwarden | OAuth2/OIDC | explicit consent | | Matrix | OAuth2/OIDC | implicit consent | | wrongmove | OAuth2/OIDC | implicit consent | #### Current Groups (9) | Group | Parent | Superuser | Purpose | |-------|--------|-----------|---------| | Allow Login Users | — | No | Parent group for login-permitted users | | authentik Admins | — | Yes | Full admin access | | authentik Read-only | — | No | Read-only access (has role) | | Headscale Users | Allow Login Users | No | VPN access | | Home Server Admins | Allow Login Users | No | Server admin access | | Wrongmove Users | Allow Login Users | No | Real-estate app access | | kubernetes-admins | — | No | K8s cluster-admin RBAC | | kubernetes-power-users | — | No | K8s power-user RBAC | | kubernetes-namespace-owners | — | No | K8s namespace-owner RBAC | #### Current Users (7 real users) | Username | Name | Type | Groups | |----------|------|------|--------| | akadmin | authentik Default Admin | internal | authentik Admins, Home Server Admins, Headscale Users | | vbarzin@gmail.com | Viktor Barzin | internal | authentik Admins, Home Server Admins, Wrongmove Users, Headscale Users | | emil.barzin@gmail.com | Emil Barzin | internal | Home Server Admins, Headscale Users | | ancaelena98@gmail.com | Anca Milea | external | Wrongmove Users, Headscale Users | | vabbit81@gmail.com | GHEORGHE Milea | external | Headscale Users | | valentinakolevabarzina@gmail.com | Валентина Колева-Барзина | internal | Headscale Users | | anca.r.cristian10@gmail.com | — | internal | Wrongmove Users | | kadir.tugan@gmail.com | Kadir | internal | Wrongmove Users | #### Login Sources (Social Login) - **Google** (OAuth) — user matching by identifier - **GitHub** (OAuth) — user matching by email_link - **Facebook** (OAuth) — user matching by email_link - All use the same authentication flow (`1a779f24`) and enrollment flow (`87572804`) #### Authorization Flows - **Explicit consent** (`default-provider-authorization-explicit-consent`): Shows consent screen before redirecting — used for Immich, Linkwarden, Headscale, Cloudflare - **Implicit consent** (`default-provider-authorization-implicit-consent`): Auto-redirects without consent — used for Grafana, Matrix, Domain catch-all, Wrongmove #### Traefik Integration - Forward auth middleware: `authentik-forward-auth` in Traefik namespace - Outpost endpoint: `http://ak-outpost-authentik-embedded-outpost.authentik.svc.cluster.local:9000/outpost.goauthentik.io/auth/traefik` - Services opt in via `protected = true` in `ingress_factory` - Response headers: `X-authentik-username`, `X-authentik-uid`, `X-authentik-email`, `X-authentik-name`, `X-authentik-groups`, `Set-Cookie` #### OIDC for Kubernetes API - **Issuer**: `https://authentik.viktorbarzin.me/application/o/kubernetes/` - **Client ID**: `kubernetes` (public client, no secret) - **Username claim**: `email`, **Groups claim**: `groups` - **Signing key**: `authentik Self-signed Certificate` (must be assigned to the provider or JWKS will be empty) - **Redirect URIs**: Regex mode `http://localhost:.*` and `http://127\.0\.0\.1:.*` (kubelogin picks random ports) - **Configured via**: SSH to kube-apiserver manifest (`modules/kubernetes/rbac/apiserver-oidc.tf`) - **RBAC module**: `modules/kubernetes/rbac/main.tf` — admin/power-user/namespace-owner roles - **Self-service portal**: `modules/kubernetes/k8s-portal/` — SvelteKit app at `https://k8s-portal.viktorbarzin.me` - **User definition**: `k8s_users` variable in `terraform.tfvars` - **Audit logging**: Enabled via `modules/kubernetes/rbac/audit-policy.tf`, logs at `/var/log/kubernetes/audit.log` **CRITICAL GOTCHAS when setting up Authentik OIDC for Kubernetes:** 1. **Signing key MUST be assigned** to the OAuth2 provider. Without it, the JWKS endpoint returns `{}` and kube-apiserver can't validate tokens. 2. **Email mapping must set `email_verified: True`**. The default Authentik email scope mapping hardcodes `email_verified: False`, which causes kube-apiserver to reject the token with `oidc: email not verified`. Use a custom scope mapping: `return {"email": request.user.email, "email_verified": True}` 3. **kubelogin needs `--oidc-extra-scope`** for `email`, `profile`, `groups`. Without these, only `openid` is requested and the token lacks the `email` claim, causing `oidc: parse username claims "email": claim not present`. 4. **Redirect URIs must use regex mode** (`http://localhost:.*`) because kubelogin picks random ports, not just 8000/18000. 5. **Kubelet static pod manifest changes** require a full cycle to take effect: remove manifest, stop kubelet, remove containers via crictl, re-add manifest, start kubelet. Simple `touch` or kubelet restart is not enough. 6. **Property mappings endpoint** in Authentik 2025.10.x is `propertymappings/provider/scope/` (not the older `propertymappings/scope/`). #### Common Management Tasks **Add a new OAuth2 application:** 1. Create OAuth2 provider: `POST /api/v3/providers/oauth2/` with client_id, client_secret, redirect_uris, authorization_flow, etc. 2. Create application: `POST /api/v3/core/applications/` with name, slug, provider pk 3. (Optional) Bind to group policy for access control **Add a user to a group:** ```bash # Get group pk, then PATCH with updated users list curl -X PATCH -H "Authorization: Bearer " -H "Content-Type: application/json" \ "https://authentik.viktorbarzin.me/api/v3/core/groups//" \ -d '{"users": [, ]}' ``` **Protect a service with forward auth:** Set `protected = true` in the service's `ingress_factory` call in Terraform. ### AFFiNE (Visual Canvas) - **Image**: `ghcr.io/toeverything/affine:stable` - **Port**: 3010 - **Requires**: PostgreSQL + Redis - **Migration**: Init container runs `node ./scripts/self-host-predeploy.js` - **Storage**: NFS at `/mnt/main/affine` mounted to `/root/.affine/storage` and `/root/.affine/config` - **Key env vars**: - `AFFINE_SERVER_EXTERNAL_URL` - Public URL (e.g., `https://affine.viktorbarzin.me`) - `AFFINE_SERVER_HTTPS` - Set to `true` behind TLS ingress - `DATABASE_URL` - PostgreSQL connection string - `REDIS_SERVER_HOST` - Redis hostname - `MAILER_*` - SMTP configuration for email invites - **Local-first**: Data stored in browser by default; syncs to server when user creates account - **Docs**: https://docs.affine.pro/self-host-affine ### Wyoming Whisper (STT for Home Assistant) - **Image**: `rhasspy/wyoming-whisper:latest` - **Port**: 10300/TCP (Wyoming protocol) - **Model**: `small-int8` (CPU-optimized, no CUDA variant available from upstream) - **Runs on**: GPU node (node_selector gpu=true + nvidia toleration) but uses CPU only - **Storage**: NFS at `/mnt/main/whisper` → `/data` (model cache) - **Exposure**: Internal only via Traefik TCP entrypoint `whisper-tcp` → IngressRouteTCP - **Access**: `10.0.20.202:10300` (Traefik LB IP, no public DNS) - **HA Integration**: Wyoming Protocol integration in ha-london, host `10.0.20.202`, port `10300` - **No GPU acceleration**: Official image is CPU-only (Debian + PyTorch CPU). The `mib1185/wyoming-faster-whisper-cuda` image exists but requires self-build. ### Gramps Web (Genealogy) - **Image**: `ghcr.io/gramps-project/grampsweb:latest` - **Port**: 5000 - **URL**: `https://family.viktorbarzin.me` - **Components**: Web app + Celery worker (2 containers in 1 pod) - **Requires**: Shared Redis (DB 2 for Celery broker/backend, DB 3 for rate limiting) - **Storage**: NFS at `/mnt/main/grampsweb` with sub_paths: users, indexdir, thumbnail_cache, cache, secret, grampsdb, media, tmp - **Key env vars**: - `GRAMPSWEB_SECRET_KEY` - Flask secret key (generated via `random_password`) - `GRAMPSWEB_TREE` - Tree name - `GRAMPSWEB_BASE_URL` - Public URL - `GRAMPSWEB_CELERY_CONFIG__broker_url` / `result_backend` - Redis connection - `GRAMPSWEB_REGISTRATION_DISABLED` - Set to `True` - `GRAMPSWEB_EMAIL_*` - SMTP configuration - `GRAMPSWEB_LLM_*` - Ollama AI integration - **Celery command**: `celery -A gramps_webapi.celery worker --loglevel=INFO --concurrency=2` - **Registration**: Disabled; first user created via UI setup wizard ### Loki + Alloy (Centralized Log Collection) - **Loki image**: `grafana/loki:3.6.5` (Helm chart, single binary mode) - **Alloy image**: `grafana/alloy:v1.13.0` (Helm chart, DaemonSet) - **Config files**: `modules/kubernetes/monitoring/loki.tf`, `loki.yaml`, `alloy.yaml` - **Port**: 3100/TCP (Loki API) - **Storage**: NFS PV at `/mnt/main/loki/loki` (15Gi), WAL on tmpfs (2Gi in-memory) - **Memory**: Loki 6Gi limit, Alloy 128Mi per pod (4 worker nodes) - **Disk-friendly tuning**: `max_chunk_age: 24h`, `chunk_idle_period: 12h` — holds chunks in memory, flushes ~once/day - **Retention**: 7 days (`retention_period: 168h`), compactor enforces deletion - **Crash policy**: WAL on tmpfs — up to 24h log loss on crash (alerts still fire in real-time) - **Ruler**: Evaluates LogQL alert rules, fires to `http://prometheus-alertmanager.monitoring.svc.cluster.local:9093` - **Alert rules**: HighErrorRate, PodCrashLoopBackOff, OOMKilled (ConfigMap `loki-alert-rules`) - **Grafana**: Datasource UID `P8E80F9AEF21F6940`, dashboard "Loki Kubernetes Logs" (stored in MySQL, not file-provisioned) - **Sysctl DaemonSet**: `sysctl-inotify` sets `fs.inotify.max_user_watches=1048576` on all nodes (required for Alloy fsnotify) - **Disabled components**: gateway, chunksCache, resultsCache (not needed for single binary) - **Key paths**: Compactor at `/var/loki/compactor`, ruler scratch at `/var/loki/scratch` (must be under `/var/loki` — root FS is read-only) - **Querying**: Grafana Explore with LogQL, e.g. `{namespace="monitoring"} |= "error"` - **Troubleshooting**: If "entry too far behind" errors on first start, restart Alloy DaemonSet (`kubectl rollout restart ds -n monitoring alloy`) — Alloy reads historical logs on first boot, which Loki rejects; clears after restart ### OpenClaw (AI Agent Gateway) - **Image**: `ghcr.io/openclaw/openclaw:2026.2.9` - **Port**: 18789 - **URL**: `https://openclaw.viktorbarzin.me` (authentik-protected) - **Namespace**: `openclaw` (tier: aux) - **Formerly**: `moltbot` — renamed in Feb 2026 - **Architecture**: Single pod with init container (tools download + repo clone) + main container (OpenClaw gateway) - **Init container**: Downloads kubectl v1.34.2, terraform 1.14.5, git-crypt; clones infra repo; runs terraform init - **ServiceAccount**: `openclaw` with `cluster-admin` ClusterRoleBinding (for managing cluster resources) - **Storage**: NFS at `/mnt/main/openclaw/workspace` (git repo) and `/mnt/main/openclaw/data` (persistent data) - **Config**: `openclaw.json` ConfigMap with model providers (Gemini, Ollama, Llama API), tool permissions, and agent defaults - **Variables**: `openclaw_ssh_key`, `openclaw_skill_secrets` in `terraform.tfvars` - **Skill secrets**: Home Assistant tokens (london + sofia), Uptime Kuma password — passed as env vars - **Model providers**: Gemini (gemini-2.5-flash), Ollama (qwen2.5-coder:14b, deepseek-r1:14b), Llama API (Llama-3.3-70B, Llama-4-Scout/Maverick)