docs(gremlin): update caddy

Netgrimoire/Services/caddy/caddy.md

@@ -1,15 +1,116 @@
-# caddy Stack
-description: Caddy reverse proxy in NetGrimoire Docker Swarm environment.
+---
+title: caddy Stack
+description: Reverse proxy for NetGrimoire services
+published: true
+date: 2026-05-01T02:51:41.019Z
+tags: docker,swarm,caddy,netgrimoire
+editor: markdown
+dateCreated: 2026-05-01T02:51:41.019Z
 
 ---
+
+# caddy
+
 ## Overview
-Caddy is a secure web server that includes support for HTTPS, HTTP/2, WebSockets, VPNs, DNS, and more. It's designed to be highly configurable and secure. The `caddy` service provides access to the Caddy proxy, while also exposing internal services through reverse proxy.
+The Caddy stack is a reverse proxy service that provides secure and efficient access to NetGrimoire services. It utilizes the Docker Swarm management system to deploy and manage multiple containers, ensuring high availability and scalability.
 
----
 ## Architecture
 | Service | Image | Port | Role |
 |---------|-----|-----|---------|
 - **Host:** docker4
 - **Network:** netgrimoire
-- **Exposed via:** `http://netgrimoire:80`, `https://netgrimoire:443`
-- **Homepage group:** `homepage`
+- **Exposed via:** `caddy:80`, `caddy:443` (internal only)
+- **Homepage group:** [homepage](#homepage-group)
+
+---
+
+## Build & Configuration
+
+### Prerequisites
+* Docker and Docker Swarm installed on the manager node (`znas`)
+* `docker4` worker nodes available in the swarm cluster
+
+### Volume Setup
+```bash
+mkdir -p /DockerVol/caddy-logs
+mkdir -p /DockerVol/crowdsec-db
+```
+
+### Environment Variables
+```bash
+# generate: openssl rand -hex 32
+CADDY_INGRESS_NETWORKS: netgrimoire
+CADDY_DOCKER_EVENT_THROTTLE_INTERVAL: 2000
+BYSLg/wKOa7wlHYzChJpBVJA06Ukc7G6fKJCvBwjyZg # Caddy bouncer API key
+```
+
+### Deploy
+```bash
+cd services/swarm/stack/caddy
+set -a && source .env && set +a
+docker stack config --compose-file caddy-stack.yml > resolved.yml
+docker stack deploy --compose-file resolved.yml caddy
+rm resolved.yml
+docker stack services caddy
+```
+
+### First Run
+After deploying the Caddy stack, verify that it is functioning correctly by accessing the `caddy:80` and `caddy:443` endpoints.
+
+---
+
+## User Guide
+
+### Accessing caddy
+| Service | URL | Purpose |
+|---------|-----|---------|
+- **Caddy** | `http://localhost:8900` | Reverse proxy for NetGrimoire services |
+- **CrowdSec** | `http://localhost:8901` | Crowd security service |
+
+### Primary Use Cases
+The Caddy stack provides secure reverse proxying and access control for NetGrimoire services, ensuring the integrity and confidentiality of sensitive data.
+
+### NetGrimoire Integrations
+The Caddy stack integrates with other NetGrimoire services through environment variables and labels, including:
+
+* `kuma.*` labels for monitoring and logging
+* `homepage.*` labels for dashboard integration
+
+---
+
+## Operations
+
+### Monitoring
+Use the `docker stack services caddy` command to view Caddy logs and monitoring information.
+
+```bash
+docker stack services caddy
+```
+
+### Backups
+Critical services, such as Caddy and CrowdSec, should be backed up regularly using the `/DockerVol/caddy-logs` volume. Non-critical services can be restored from the `/DockerVol/crowdsec-db` volume.
+
+---
+
+## Common Failures
+| Symptom | Cause | Fix |
+|---------|------|-----|
+* Caddy not accessible | Incorrect network configuration | Verify `CADDY_INGRESS_NETWORKS` environment variable is set to `netgrimoire` |
+* CrowdSec not functioning | Missing API key in environment variables | Update `BYSLg/wKOa7wlHYzChJpBVJA06Ukc7G6fKJCvBwjyZg` with correct Caddy bouncer API key |
+
+---
+
+## Changelog
+
+| Date | Commit | Summary |
+|------|--------|---------|
+| 2026-04-30 | 5dc452a7 | Initial documentation and configuration for the Caddy stack |
+| 2026-04-30 | 40f19721 | Added environment variable for Caddy bouncer API key |
+| 2026-02-24 | f51eba0f | Updated `caddy-stack.yml` file to include additional services and configurations |
+
+---
+
+## Notes
+* Generated by Gremlin on 2026-05-01T02:51:41.019Z
+* Source: swarm/stack/caddy/caddy.yaml
+* Review User Guide and Changelog sections