https://github.com/andrewkroh/google-oidc-auth-middleware
Google OAuth Middleware plugin for Traefik proxy
https://github.com/andrewkroh/google-oidc-auth-middleware
traefik-plugin
Last synced: 4 days ago
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Google OAuth Middleware plugin for Traefik proxy
- Host: GitHub
- URL: https://github.com/andrewkroh/google-oidc-auth-middleware
- Owner: andrewkroh
- License: apache-2.0
- Created: 2024-02-20T20:41:00.000Z (over 1 year ago)
- Default Branch: main
- Last Pushed: 2025-04-02T23:18:50.000Z (2 months ago)
- Last Synced: 2025-04-03T00:20:37.395Z (2 months ago)
- Topics: traefik-plugin
- Language: Go
- Homepage: https://plugins.traefik.io/plugins/65d5360746079255c9ffd1e2/google-oidc-auth
- Size: 42 KB
- Stars: 12
- Watchers: 2
- Forks: 2
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE.txt
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README
# Traefik Google OIDC Auth Middleware
This is a Traefik middleware plugin that authenticates users with Google OpenID
Connect, and then checks that their email address or Google Workspace domain is
authorized.
## Requirements
- Setup a new project in the Google API console to obtain a client ID and
client secret. See the [Google developer docs](https://developers.google.com/identity/openid-connect/openid-connect).
- Install the plugin to Traefik using static config.
- Configure the middleware in dynamic config.
- Associate a service to the middleware.
## Configuration
| Option | Default | Required | Description |
|--------------------|----------------|----------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| oidc.clientID | | X | OAuth client ID |
| oidc.clientSecret | | X | OAuth client secret |
| oidc.callbackPath | /oidc/callback | | The path where the OIDC provider will redirect the user after authenticating. |
| cookie.name | oidc_auth | | Name of the cookie. It can be customized to avoid collisions when running multiple instances of the middleware. |
| cookie.path | / | | You can use this to limit the scope of the cookie to a specific path. Defaults to '/'. |
| cookie.secret | | X | Secret is the HMAC key for cookie signing, and helps provide integrity protection for cookies. |
| cookie.duration | 24h | | Validity period for new cookies. Users are granted access for this length of time regardless of changes to user's account in the OIDC provider. Uses the Go time.Duration format. |
| cookie.insecure | false | | Set to true to omit the `Secure` attribute from cookies. |
| authorized.emails | | X | List of allowed email addresses. |
| authorized.domains | | X | List of allowed domains. |
| debug | false | | Enable debug logging to stdout.
## Headers
*X-Forwarded-User*
When the middleware proxies a request it adds an `X-Fowarded-User` header
containing the user's email address. This can be used by the downstream service
to identify the authenticated user.
If you want your JSON access logs to include the user's email address then
configure the access log to retain the `X-Forwarded-User` header. Here is a
CLI example:
```
# Adding X-Forwarded-User to JSON access logs.
--accesslog
--accesslog.format=json
--accesslog.fields.headers.names.X-Forwarded-User=keep
```
The resulting access log will contain a `request_X-Forwarded-User` field.
```json
"request_X-Forwarded-User": "[email protected]"
```
See [Limiting the Fields/Including Headers](https://doc.traefik.io/traefik/observability/access-logs/#limiting-the-fieldsincluding-headers) for more details.
## Example config
Static config
```yaml
# traefik.yml
experimental:
plugins:
google-oidc-auth-middleware:
moduleName: "github.com/andrewkroh/google-oidc-auth-middleware"
# Populate this with the latest release tag.
version: vX.Y.Z
```
Dynamic config
```yaml
# dynamic.yml
http:
middlewares:
oidc-auth:
plugin:
google-oidc-auth-middleware:
oidc:
clientID: example.apps.googleusercontent.com
clientSecret: fake-secret
cookie:
secret: mySecretKey
authorized:
emails:
- [email protected]
domains:
- example.com
routers:
my-router:
rule: host(`localhost`)
service: service-foo
entryPoints:
- web
middlewares:
- oidc-auth
```