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Since Keycloak version 20.0.0 it's needed to explicitly request the openid scope. Since we define it anyway, why not request all the scopes hedgedoc needs to function. This patch should help to fix people's HedgeDoc deployments. References: https://github.com/keycloak/keycloak/pull/14237 https://shivering-isles.com/fixing-hedgedoc-profile-info-keycloak-20 Signed-off-by: Sheogorath <sheogorath@shivering-isles.com>
50 lines
3 KiB
Markdown
50 lines
3 KiB
Markdown
# OAuth with Keycloak/Red Hat SSO (self-hosted)
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## Prerequisites
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This guide assumes you have run and configured Keycloak. If you'd like to meet this prerequisite quickly, it can be achieved by running a `jboss/keycloak` container and attaching it to your network. Set the environment variables KEYCLOAK_USER and `KEYCLOAK_PASSWORD`, and expose port 8080.
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Where HTTPS is specified throughout, use HTTP instead. You may also have to specify the exposed port, 8080.
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## Steps
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1. Sign in to the administration portal for your Keycloak instance at <https://keycloak.example.com/auth/admin/master/console>
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You may note that a separate realm is specified throughout this tutorial. It is best practice not to use the master realm, as it normally contains the realm-management client that federates access using the policies and permissions you can create.
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2. Navigate to the client management page at `https://keycloak.example.com/auth/admin/master/console/#/realms/your-realm/clients` (admin permissions required)
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3. Click **Create** to create a new client and fill out the registration form. You should set the Root URL to the fully qualified public URL of your HedgeDoc instance.
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4. Click **Save**
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5. Set the **Access Type** of the client to `confidential`. This will make your client require a client secret upon authentication.
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---
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### Additional steps to circumvent generic OAuth2 issue
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1. Select Client Scopes from the sidebar, and begin to create a new client scope using the Create button.
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2. Ensure that the **Name** field is set to `id`.
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3. Create a new mapper under the Mappers tab. This should reference the User Property `id`. `Claim JSON Type` should be String and all switches below should be enabled. Save the mapper.
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4. Go to the client you set up in the previous steps using the Clients page, then choose the Client Scopes tab. Apply the scope you've created. This should mitigate errors as seen in [hedgedoc/hedgedoc#56](https://github.com/hedgedoc/hedgedoc/issues/56), as the `/userinfo` endpoint should now bring back the user's ID under the `id` key as well as `sub`.
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---
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5. In the `docker-compose.yml` add the following environment variables to `app:` `environment:`
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```yaml
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CMD_OAUTH2_USER_PROFILE_URL=https://keycloak.example.com/auth/realms/your-realm/protocol/openid-connect/userinfo
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CMD_OAUTH2_USER_PROFILE_USERNAME_ATTR=preferred_username
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CMD_OAUTH2_USER_PROFILE_DISPLAY_NAME_ATTR=name
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CMD_OAUTH2_USER_PROFILE_EMAIL_ATTR=email
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CMD_OAUTH2_TOKEN_URL=https://keycloak.example.com/auth/realms/your-realm/protocol/openid-connect/token
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CMD_OAUTH2_AUTHORIZATION_URL=https://keycloak.example.com/auth/realms/your-realm/protocol/openid-connect/auth
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CMD_OAUTH2_CLIENT_ID=<your client ID>
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CMD_OAUTH2_CLIENT_SECRET=<your client secret, which you can find under the Credentials tab for your client>
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CMD_OAUTH2_PROVIDERNAME=Keycloak
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CMD_OAUTH2_SCOPE="openid email profile"
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CMD_DOMAIN=<hedgedoc.example.com>
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CMD_PROTOCOL_USESSL=true
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CMD_URL_ADDPORT=false
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```
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6. Run `docker-compose up -d` to apply your settings.
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7. Sign in to your HedgeDoc using your Keycloak ID
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