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Authentication through Bitbucket Cloud

Overview

One of the login options for dex uses the Bitbucket OAuth2 flow to identify the end user through their Bitbucket account.

When a client redeems a refresh token through dex, dex will re-query Bitbucket to update user information in the ID Token. To do this, dex stores a readonly Bitbucket access token in its backing datastore. Users that reject dex's access through Bitbucket will also revoke all dex clients which authenticated them through Bitbucket.

Configuration

Register a new OAuth consumer with Bitbucket ensuring the callback URL is (dex issuer)/callback. For example if dex is listening at the non-root path https://auth.example.com/dex the callback would be https://auth.example.com/dex/callback.

The application requires the user to grant the Read Account and Read Team membership permissions. The latter is required only if group membership is a desired claim.

The following is an example of a configuration for examples/config-dev.yaml:

connectors:
- type: bitbucket-cloud
  # Required field for connector id.
  id: bitbucket-cloud
  # Required field for connector name.
  name: Bitbucket Cloud
  config:
    # Credentials can be string literals or pulled from the environment.
    clientID: $BITBUCKET_CLIENT_ID
    clientSecret: $BITBUCKET_CLIENT_SECRET
    redirectURI: http://127.0.0.1:5556/dex/callback
    # Optional teams whitelist, communicated through the "groups" scope.
    # If `teams` is omitted, all of the user's Bitbucket teams are returned when the groups scope is present.
    # If `teams` is provided, this acts as a whitelist - only the user's Bitbucket teams that are in the configured `teams` below will go into the groups claim.  Conversely, if the user is not in any of the configured `teams`, the user will not be authenticated.
    teams:
    - my-team