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WebSSO CLI support for OpenStack keystoneauth library

Project description

OpenID Connect support for OpenStack clients

GitHub issues GitHub license

Quick Reference

  1. Installation
  2. Usage-CLI
  3. Usage-stackrc file
  4. Usage-clouds.yml
  5. Keystone server configuration

This is an authentication plugin for OpenStack clients (namely for the keystoneauth1 library) which provides client support for authentication against an OpenStack Keystone server configured to support OpenID Connect using Apache's mod_auth_openidc, as described below.

Description

v3websso plugin

This plugin will allow you to authenitcate with a keystone server that is configured to use openid as an auth option on /etc/keystone/keystone.conf

Installation

Install it via pip:

pip install keystoneauth-websso

Or clone the repo and install it:

git clone https://github.com/vexxhost/keystoneauth-websso
cd keystoneauth-websso
pip install .

Usage

v3websso plugin

The <identity-provider> and <protocol> must be provided by the OpenStack cloud provider.

1. Pass as command line option

  • Unscoped token:

      openstack --os-auth-url https://keystone.example.org:5000/v3 \
          --os-auth-type v3websso \
          --os-identity-provider <identity-provider> \
          --os-protocol <protocol> \
          --os-identity-api-version 3 \
          token issue
    
  • Scoped token:

      openstack --os-auth-url https://keystone.example.org:5000/v3 \
          --os-auth-type v3websso \
          --os-identity-provider <identity-provider> \
          --os-protocol <protocol> \
          --os-project-name <project> \
          --os-project-domain-name <project-domain> \
          --os-identity-api-version 3 \
          --os-openid-scope "openid profile email" \
          token issue
    

2. Add to stackrc file

export OS_AUTH_TYPE=v3websso
export OS_AUTH_URL=https://keystone.example.org:5000/v3
export OS_IDENTITY_PROVIDER='<keystone-identity-provider>'
export OS_PROTOCOL=openid

3. Add to clouds.yml

  • Unscoped token:

    clouds:
        my_cloud:
            auth_type: v3websso
            auth_url: https://keystone.example.org:5000/v3
            identity_provider: <keystone-identity-provider>
            protocol: openid
    
  • Scoped token:

    clouds:
        my_cloud:
            auth_type: v3websso
            auth_url: https://keystone.example.org:5000/v3
            identity_provider: <keystone-identity-provider>
            protocol: openid
            auth:
                project_name: <project-name>
                project_domain_name: <domain-name>
    

invoke using

OS_CLOUD=my_cloud openstack token issue

Keystone Server config

keystone configuration consists of the keystone.conf (as well as any domain-specific configs) and the Apache2 wsgi configuration.

Configure /etc/keystone/keystone.conf

http://localhost:9990/auth/websso/ needs to be added as a "Trusted Dashboard"

[federation]
trusted_dashboard=http://your-horizon-dashboard/auth/websso/
trusted_dashboard=http://localhost:9990/auth/websso/

Configure wsgi-keystone.conf

There are 2 required "protected" Locations that need to be created.

  • 1 Global redirect URL

    <Location /v3/auth/OS-FEDERATION/identity_providers/redirect>
        AuthType openid-connect
        Require valid-user
    </Location>
    
  • 1 Location that is used for websso authentication. This is specific to the target OpenStack Keystone Identity Provider. See callback_template for more information

    <Location /v3/auth/OS-FEDERATION/identity_providers/<IDP-name>/protocols/openid/websso>
        Require valid-user
        AuthType openid-connect
        OIDCDiscoverURL http://localhost:15000/v3/auth/OS-FEDERATION/identity_providers/redirect?iss=<url-encoded-issuer>
    </Location>
    

For detailed configuration of mod_auth_oidc with Keycloak, see: https://github.com/OpenIDC/mod_auth_openidc/wiki/Keycloak

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