Add HashiCorp stack documentation

hashicorp-stack.md

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+# HashiCorp Stack - hf-pdocker-01
+
+## Overview
+
+Production HashiCorp stack deployed on `hf-pdocker-01` (192.168.86.192) providing orchestration, service discovery, and secrets management.
+
+## Components
+
+| Service | Version | Port | UI URL |
+|---------|---------|------|--------|
+| Consul | 1.17.1 | 8500 | http://192.168.86.192:8500 |
+| Nomad | 1.7.3 | 4646 | http://192.168.86.192:4646 |
+| Vault | 1.15.4 | 8200 | http://192.168.86.192:8200 |
+
+## Architecture
+
+```
+┌─────────────────────────────────────────────────────────┐
+│              hf-pdocker-01 (192.168.86.192)             │
+├─────────────────────────────────────────────────────────┤
+│  Consul Server  →  Service Discovery, KV Store          │
+│  Nomad Server   →  Workload Orchestration               │
+│  Nomad Client   →  Runs containers                      │
+│  Vault Server   →  Secrets Management (Consul backend)  │
+└─────────────────────────────────────────────────────────┘
+```
+
+## Nomad Host Volumes
+
+| Volume Name | Path | Purpose |
+|-------------|------|---------|
+| media | /data/media | Shared media files (movies, tv, downloads) |
+| jellyfin-config | /data/configs/jellyfin | Jellyfin configuration |
+| sonarr-config | /data/configs/sonarr | Sonarr configuration |
+| radarr-config | /data/configs/radarr | Radarr configuration |
+| sabnzbd-config | /data/configs/sabnzbd | SABnzbd configuration |
+| nzbhydra-config | /data/configs/nzbhydra | NZBHydra2 configuration |
+| jellyseerr-config | /data/configs/jellyseerr | Jellyseerr configuration |
+
+## Vault Secrets Structure
+
+```
+secret/
+└── media/
+    ├── jellyfin
+    ├── sonarr
+    ├── radarr
+    ├── sabnzbd
+    ├── nzbhydra
+    └── jellyseerr
+```
+
+## Deployed Jobs
+
+### media-stack
+Combined job running all media services:
+- Jellyfin (8096) - Media streaming
+- Sonarr (8989) - TV show management
+- Radarr (7878) - Movie management
+- SABnzbd (8082) - Usenet downloader
+- NZBHydra2 (5076) - Indexer aggregator
+- Jellyseerr (5055) - Media requests
+
+## Commands
+
+```bash
+# Cluster status
+consul members
+nomad server members
+nomad node status
+vault status
+
+# Job management
+nomad job run <job.hcl>
+nomad job status <job>
+nomad job stop <job>
+
+# View logs
+nomad alloc logs <alloc-id>
+
+# Vault secrets
+export VAULT_ADDR='http://127.0.0.1:8200'
+vault kv list secret/media/
+vault kv get secret/media/<service>
+```
+
+## Configuration Files
+
+| Service | Config Path |
+|---------|-------------|
+| Consul | /etc/consul.d/consul.hcl |
+| Nomad | /etc/nomad.d/nomad.hcl, client.hcl |
+| Vault | /etc/vault.d/vault.hcl |
+
+## Systemd Services
+
+```bash
+systemctl status consul nomad vault
+systemctl restart consul nomad vault
+journalctl -u nomad -f
+```
+
+---
+
+*Deployed: 2026-02-04*
+*Maintained by: Pluto 🪐*