feat(ntfy): define publish_via config

modules/20-services-apps/ntfy/README.md

@@ -0,0 +1,81 @@
+# NTFY Module
+
+This module deploys [NTFY](https://ntfy.sh/), a simple HTTP-based pub-sub notification service, as a Docker container in the homelab environment.
+
+## Overview
+
+The NTFY module:
+
+- Deploys the `binwiederhier/ntfy` Docker container
+- Persists configuration and cache data to volumes on the host
+- Provides service definition for integration with networking modules
+
+## Usage
+
+```hcl
+module "ntfy" {
+  source      = "./modules/20-services-apps/ntfy"
+  volume_path = "/path/to/volumes/ntfy"
+  networks    = ["homelab-network"]
+}
+```
+
+## Variables
+
+| Variable      | Description                                                | Type           | Default    |
+| ------------- | ---------------------------------------------------------- | -------------- | ---------- |
+| `image_tag`   | Tag of the NTFY image to use                               | `string`       | `"latest"` |
+| `volume_path` | Host path for NTFY data volumes                            | `string`       | -          |
+| `networks`    | List of networks to which the container should be attached | `list(string)` | -          |
+
+## Outputs
+
+| Output               | Description                                                |
+| -------------------- | ---------------------------------------------------------- |
+| `service_definition` | Service definition for integration with networking modules |
+
+## Service Definition
+
+This module outputs a service definition that is used by the networking modules to expose the service.
+
+```hcl
+{
+  name         = "ntfy"
+  primary_port = 80
+  endpoint     = "http://ntfy:80"
+  subdomains   = ["ntfy"]
+  publish_via  = "reverse_proxy"  # Expose via Caddy reverse proxy
+  proxied      = true             # Proxy through Cloudflare
+}
+```
+
+## Data Persistence
+
+NTFY stores its data in two volumes:
+
+1. Configuration: `/etc/ntfy` in the container, mapped to `${volume_path}/app` on the host
+2. Cache data: `/var/cache/ntfy` in the container, mapped to `${volume_path}/cache` on the host
+
+## Integration with Networking Modules
+
+This service is configured to be exposed through the Caddy reverse proxy, set by `publish_via = "reverse_proxy"`. The `proxied = true` setting ensures that the DNS record is proxied through Cloudflare.
+
+## Example Integration in Main Configuration
+
+```hcl
+module "ntfy" {
+  source      = "./modules/20-services-apps/ntfy"
+  volume_path = module.system_globals.volume_host
+  networks    = [module.services.homelab_docker_network_name]
+}
+
+# The service definition is automatically included in the services output
+module "services" {
+  source = "./modules/services"
+  # ...
+  service_definitions = [
+    module.ntfy.service_definition,
+    # Other service definitions
+  ]
+}
+```

modules/20-services-apps/ntfy/main.tf

@@ -52,5 +52,7 @@ output "service_definition" {
     primary_port = local.exposed_port
     endpoint     = "http://${local.container_name}:${local.exposed_port}"
     subdomains   = local.subdomains
+    publish_via  = "reverse_proxy"
+    proxied      = true
   }
 }