35 lines
1.4 KiB
Markdown
35 lines
1.4 KiB
Markdown
# Authentication through GitHub
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## Overview
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One of the login options for dex uses the GitHub OAuth2 flow to identify the end user through their GitHub account.
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When a client redeems a refresh token through dex, dex will re-query GitHub to update user information in the ID Token. To do this, __dex stores a readonly GitHub access token in its backing datastore.__ Users that reject dex's access through GitHub will also revoke all dex clients which authenticated them through GitHub.
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## Configuration
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Register a new application with [GitHub][github-oauth2] 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`.
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The following is an example of a configuration for `examples/config-dev.yaml`:
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```yaml
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connectors:
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- type: github
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# Required field for connector id.
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id: github
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# Required field for connector name.
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name: GitHub
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config:
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# Credentials can be string literals or pulled from the environment.
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clientID: $GITHUB_CLIENT_ID
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clientSecret: $GITHUB_CLIENT_SECRET
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redirectURI: http://127.0.0.1:5556/dex/callback
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# Optional organization to pull teams from, communicate through the
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# "groups" scope.
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#
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# NOTE: This is an EXPERIMENTAL config option and will likely change.
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org: my-oranization
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```
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[github-oauth2]: https://github.com/settings/applications/new
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