# OAuth2/OIDC auth for admin.familyfed.ie

`admin.familyfed.ie` must be protected before traffic reaches the static Astro
files. Use Pocket ID as the OIDC issuer, with an OAuth2/OIDC proxy in front of
the generated admin page.

Required policy:

- Host: `admin.familyfed.ie`
- Required Pocket ID group: `familyfed_admin`
- Static upstream/root: `dist/admin/index.html`
- OIDC issuer: `https://auth.bcgen.ie`

## Pocket ID client

Create a Pocket ID OIDC client:

- Name: `FamilyFed Admin`
- Redirect URL: `https://admin.familyfed.ie/oauth2/callback`
- Scopes: `openid email profile groups`
- Allowed user group: `familyfed_admin`

The redirect URL must exactly match the OAuth2 proxy config. If the proxy is
mounted on a different hostname or path, use that callback URL in both places.

## OAuth2 proxy setup

Run an OAuth2/OIDC proxy in front of the static admin output. The proxy should
receive all traffic for `admin.familyfed.ie`, complete the Pocket ID login, check
the `groups` claim, and only then forward to the static admin page.

Example `oauth2-proxy` arguments:

```text
--http-address=0.0.0.0:4180
--provider=oidc
--oidc-issuer-url=https://auth.bcgen.ie
--redirect-url=https://admin.familyfed.ie/oauth2/callback
--scope=openid email profile groups
--email-domain=*
--allowed-group=familyfed_admin
--oidc-groups-claim=groups
--reverse-proxy=true
--upstream=http://127.0.0.1:8080/
--cookie-secure=true
--cookie-samesite=lax
--cookie-name=__Secure-familyfed_admin_oauth2
--skip-provider-button=true
--set-xauthrequest=true
--pass-user-headers=true
```

Required secret environment values:

```text
OAUTH2_PROXY_CLIENT_ID=<pocket-id-client-id>
OAUTH2_PROXY_CLIENT_SECRET=<pocket-id-client-secret>
OAUTH2_PROXY_COOKIE_SECRET=<generated-cookie-secret>
```

Generate a cookie secret with:

```bash
openssl rand -base64 32
```

The upstream can be any local static file server or reverse-proxy target that
serves `dist/admin/index.html` as the root document for the admin hostname. Do
not expose that upstream directly to the public internet.

## Deployment checks

The site build verifies that `dist/admin/index.html` exists. That confirms the
static admin page is available for the host, but it does not prove the external
proxy has enabled Pocket ID.

Verify live protection with:

```bash
curl -I https://admin.familyfed.ie/
```

Expected unauthenticated behavior is a redirect into the OAuth2/OIDC login flow
or a `401`/`403` response from the auth proxy. Users outside
`familyfed_admin` should never reach the static admin HTML.