dex/Documentation/connectors-configuration.md
2015-11-02 19:45:40 -08:00

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# Configuring Connectors
Connectors connect dex to authentication providers. dex needs to have at least one connector configured so that users can log in.
## Configuration Format
The dex connector configuration format is a JSON array of objects, each with an ID and type, in addition to whatever other configuration is required, like so:
```
[
{
"id": "local",
"type": "local"
}, {
"id": "Google",
"type": "oidc",
...<<more config>>...
}
]
```
The additional configuration is dependent on the specific type of connector.
### `local` connector
The `local` connector allows email/password based authentication hosted by dex itself. It is special in several ways:
* There can only be one `local` connector in your configuration.
* The id must be `local`
* No other configuration is required
When the `local` connector is present, users can authenticate with the "Log in With Email" button on the authentication screen.
The configuration for the local connector is always the same; it looks like this:
```
{
"id": "local",
"type": "local"
}
```
### `oidc` connector
This connector config lets users authenticate with other OIDC providers. In addition to `id` and `type`, the `oidc` connector takes the following additional fields:
* issuerURL: a `string`. The base URL for the OIDC provider. Should be a URL with an `https` scheme.
* clientID: a `string`. The OIDC client ID.
* clientSecret: a `string`. The OIDC client secret.
* trustedEmailProvider: a `boolean`. If true dex will trust the email address claims from this provider and not require that users verify their emails.
In order to use the `oidc` connector you must register dex as an OIDC client; this mechanism is different from provider to provider. For Google, follow the instructions at their [developer site](https://developers.google.com/identity/protocols/OpenIDConnect?hl=en). Regardless of your provider, registering your client will also provide you with the client ID and secret.
When registering dex as a client, you need to provide redirect URLs to the provider. dex requires just one:
```
https://$DEX_HOST:$DEX_PORT/auth/$CONNECTOR_ID/callback
```
`$DEX_HOST` and `$DEX_PORT` are the host and port of your dex installation. `$CONNECTOR_ID` is the `id` field of the connector for this OIDC provider.
Here's what a `oidc` connector looks like configured for authenticating with Google; the clientID and clientSecret shown are not usable. We consider Google a trusted email provider because the email address that is present in claims is for a Google provisioned email account (eg. an `@gmail.com` address)
```
{
"type": "oidc",
"id": "google",
"issuerURL": "https://accounts.google.com",
"clientID": "$DEX_GOOGLE_CLIENT_ID",
"clientSecret": "$DEX_GOOGLE_CLIENT_SECRET",
"trustedEmailProvider": true
}
```
## Setting the Configuration
To set a connectors configuration in dex, put it in some temporary file, then use the dexctl command to upload it to dex:
```
dexctl -db-url=$DEX_DB_URL set-connector-configs /tmp/dex_connectors.json
```