Gitea

Tested Versions #

• [Authelia]
  • v4.36.3
• Gitea
  • 1.17.0

Before You Begin #

Common Notes #

1. The OpenID Connect 1.0 client_id parameter:
   1. This must be a unique value for every client.
   2. The value used in this guide is merely for demonstration purposes and you can theoretically use nearly any alphanumeric string.
2. The OpenID Connect 1.0 secret parameter:
   1. The value used in this guide is merely for demonstration purposes and you should absolutely not use this in production and should instead utilize the How Do I Generate Client Secrets FAQ.
   2. This string may be stored as plaintext in the Authelia configuration but this behaviour is deprecated and is not guaranteed to be supported in the future. See the Plaintext guide for more information.
3. The Configuration example for Authelia is only a portion of the required configuration and it should be used as a guide in conjunction with the standard OpenID Connect 1.0 Configuration guide.

Assumptions #

This example makes the following assumptions:

• Application Root URL: https://gitea.example.com
• Authelia Root URL: https://auth.example.com
• Client ID: gitea
• Client Secret: insecure_secret

Configuration #

Application #

To configure Gitea to utilize Authelia as an OpenID Connect 1.0 Provider:

1. Expand User Options
2. Visit Site Administration
3. Visit Authentication Sources
4. Visit Add Authentication Source
5. Configure:
   1. Authentication Name: authelia
   2. OAuth2 Provider: OpenID Connect
   3. Client ID (Key): gitea
   4. Client Secret: insecure_secret
   5. OpenID Connect Auto Discovery URL: https://auth.example.com/.well-known/openid-configuration

To configure Gitea to perform automatic user creation for the auth.example.com domain via OpenID Connect 1.0:

1. Edit the following values in the Gitea app.ini:

[openid]
ENABLE_OPENID_SIGNIN = false
ENABLE_OPENID_SIGNUP = true
WHITELISTED_URIS     = auth.example.com

[service]
DISABLE_REGISTRATION                          = false
ALLOW_ONLY_EXTERNAL_REGISTRATION              = true
SHOW_REGISTRATION_BUTTON                      = false

Take a look at the See Also section for the cheatsheets corresponding to the sections above for their descriptions.

Authelia #

The following YAML configuration is an example Authelia client configuration for use with Gitea which will operate with the above example:

identity_providers:
  oidc:
    ## The other portions of the mandatory OpenID Connect 1.0 configuration go here.
    ## See: https://www.authelia.com/c/oidc
    clients:
    - id: gitea
      description: Gitea
      secret: '$pbkdf2-sha512$310000$c8p78n7pUMln0jzvd4aK4Q$JNRBzwAo0ek5qKn50cFzzvE9RXV88h1wJn5KGiHrD0YKtZaR/nCb2CJPOsKaPK0hjf.9yHxzQGZziziccp6Yng'  # The digest of 'insecure_secret'.
      public: false
      authorization_policy: two_factor
      redirect_uris:
        - https://gitea.example.com/user/oauth2/authelia/callback
      scopes:
        - openid
        - email
        - profile
      userinfo_signing_algorithm: none

See Also #

• Gitea app.ini Config Cheat Sheet:
  • OpenID
  • Service