# SSO 연동 현황 (Authentik)

> Authentik: `https://auth.du5t.xyz` | 버전: 2025.12
> Embedded Outpost PK: `999d7409-0ec6-4e81-ab37-cb4cd4b1557c`

## Provider 목록

| PK | Provider명 | 타입 | 연결 Application |
|---|---|---|---|
| 2 | `grafana-oidc` | OAuth2/OIDC | Grafana |
| 3 | `gitea-oidc` | OAuth2/OIDC | Gitea |
| 4 | `nextcloud-oidc` | OAuth2/OIDC | Nextcloud |
| 5 | `open-webui-oidc` | OAuth2/OIDC | Open WebUI |
| 6 | `prometheus-proxy` | Proxy | Prometheus |
| 7 | `filebrowser-proxy` | Proxy | FileBrowser |
| 8 | `comfyui-proxy` | Proxy | ComfyUI |

## OIDC 연동 상세

### Grafana (`grafana.ini`)

```ini
[auth.generic_oauth]
enabled = true
name = authentik
client_id = gO2Rk6LOyDU9CZc7DdXqNlEwfK8lTZmGb2nnBJOk
scopes = openid profile email
auth_url = https://auth.du5t.xyz/application/o/authorize/
token_url = https://auth.du5t.xyz/application/o/token/
api_url = https://auth.du5t.xyz/application/o/userinfo/
role_attribute_path = contains(groups[*], 'grafana-admins') && 'Admin' || 'Viewer'
signout_redirect_url = https://auth.du5t.xyz/application/o/grafana/end-session/
use_pkce = true
```

### Gitea

```bash
podman exec --user git gitea gitea admin auth add-oauth \
  --name "authentik" \
  --provider "openidConnect" \
  --key "<CLIENT_ID>" \
  --secret "<CLIENT_SECRET>" \
  --auto-discover-url "https://auth.du5t.xyz/application/o/gitea/.well-known/openid-configuration"
```

### Nextcloud

```bash
podman exec --user www-data nextcloud-app php occ app:install user_oidc
podman exec --user www-data nextcloud-app php occ user_oidc:provider authentik \
  --clientid="<CLIENT_ID>" \
  --clientsecret="<CLIENT_SECRET>" \
  --discoveryuri="https://auth.du5t.xyz/application/o/nextcloud/.well-known/openid-configuration" \
  --unique-uid=1
```

### Open WebUI (환경변수)

```ini
Environment=ENABLE_OAUTH_SIGNUP=true
Environment=OAUTH_PROVIDER_NAME=authentik
Environment=OPENID_PROVIDER_URL=https://auth.du5t.xyz/application/o/open-webui/.well-known/openid-configuration
Environment=OAUTH_CLIENT_ID=<CLIENT_ID>
Environment=OAUTH_CLIENT_SECRET=<CLIENT_SECRET>
Environment=OAUTH_SCOPES=openid email profile
```

## Proxy Provider 연동 상세

NPM의 백엔드를 `10.89.0.20:9000` (Authentik Embedded Outpost)으로 설정한다.
Outpost가 `Host` 헤더를 보고 어느 Proxy Provider를 적용할지 결정한다.

```
NPM (443) ─→ Authentik Outpost (10.89.0.20:9000)
                    │
                    ├─ Host: prometheus.du5t.xyz  → 10.89.0.30:9090
                    ├─ Host: file.du5t.xyz        → 10.89.0.5:8080
                    └─ Host: comfy.du5t.xyz       → 10.89.0.1:8188
```

인증되지 않은 요청:
```
302 → https://<domain>/outpost.goauthentik.io/start?rd=<original_url>
    → https://auth.du5t.xyz/flows/default-authentication-flow/
```

## API 토큰 재발급

Authentik API 토큰은 만료 시 재발급이 필요하다.

```bash
podman exec authentik-worker python -m manage shell -c "
from authentik.core.models import Token, TokenIntents, User
user = User.objects.get(username='akadmin')
t = Token.objects.filter(identifier='cli-admin-token').first()
if t: t.delete()
token = Token.objects.create(
    identifier='cli-admin-token', user=user, intent=TokenIntents.INTENT_API
)
print(token.key)
"
```

## 신규 서비스 Authentik 연동 절차

### OIDC 방식

1. Authentik API: `POST /api/v3/providers/oauth2/` — Provider 생성
2. Authentik API: `POST /api/v3/core/applications/` — Application 생성
3. 서비스 측 OIDC 설정 (Discovery URL 패턴: `https://auth.du5t.xyz/application/o/<slug>/.well-known/openid-configuration`)

### Proxy Provider 방식

1. Authentik API: `POST /api/v3/providers/proxy/` — Provider 생성 (`external_host`, `internal_host` 지정)
2. Authentik API: `POST /api/v3/core/applications/` — Application 생성
3. Authentik API: `PATCH /api/v3/outposts/instances/999d7409-.../` — Outpost providers 배열에 추가
4. NPM DB: `UPDATE proxy_host SET forward_host='10.89.0.20', forward_port=9000 WHERE domain_names='...'`
5. NPM nginx conf 파일 직접 수정 후 `podman exec npm-app nginx -s reload`

## 미적용 서비스 (향후 계획)

| 서비스 | 권장 방식 | 비고 |
|---|---|---|
| JupyterHub | OIDC (`oauthenticator.GenericOAuthenticator`) | `jupyterhub_config.py` 수정 필요 |
| SFTPGo | OIDC (Web Admin > Settings > OIDC) | 웹 UI에서 설정 가능 |
| Jellyfin | OIDC (SSO Plugin) | 플러그인 설치 필요 |
| Ollama API | Proxy Provider | 현재 무인증 노출 상태 |