quay/util/config/schema.py

# INTERNAL_ONLY_PROPERTIES defines the properties in the config that, while settable, should
# not be documented for external users. These will generally be used for internal test or only
# given to customers when they have been briefed on the side effects of using them.
INTERNAL_ONLY_PROPERTIES = {
  '__module__',
  '__doc__',
  'create_transaction',

  'TESTING',
  'SEND_FILE_MAX_AGE_DEFAULT',

  'ACTION_LOG_MAX_PAGE',

  'REPLICATION_QUEUE_NAME',
  'DOCKERFILE_BUILD_QUEUE_NAME',
  'CHUNK_CLEANUP_QUEUE_NAME',
  'SECSCAN_NOTIFICATION_QUEUE_NAME',
  'SECURITY_SCANNER_ISSUER_NAME',
  'NOTIFICATION_QUEUE_NAME',
  'NAMESPACE_GC_QUEUE_NAME',
  'EXPORT_ACTION_LOGS_QUEUE_NAME',

  'FEATURE_BILLING',
  'BILLING_TYPE',

  'INSTANCE_SERVICE_KEY_LOCATION',
  'INSTANCE_SERVICE_KEY_REFRESH',
  'INSTANCE_SERVICE_KEY_SERVICE',
  'INSTANCE_SERVICE_KEY_KID_LOCATION',
  'INSTANCE_SERVICE_KEY_EXPIRATION',
  'UNAPPROVED_SERVICE_KEY_TTL_SEC',
  'EXPIRED_SERVICE_KEY_TTL_SEC',
  'REGISTRY_JWT_AUTH_MAX_FRESH_S',

  'BITTORRENT_FILENAME_PEPPER',
  'BITTORRENT_WEBSEED_LIFETIME',

  'SERVICE_LOG_ACCOUNT_ID',
  'BUILDLOGS_OPTIONS',
  'LIBRARY_NAMESPACE',
  'STAGGER_WORKERS',
  'QUEUE_WORKER_METRICS_REFRESH_SECONDS',
  'PUSH_TEMP_TAG_EXPIRATION_SEC',
  'GARBAGE_COLLECTION_FREQUENCY',
  'PAGE_TOKEN_KEY',
  'BUILD_MANAGER',
  'JWTPROXY_AUDIENCE',
  'SYSTEM_SERVICE_BLACKLIST',
  'JWTPROXY_SIGNER',
  'SECURITY_SCANNER_INDEXING_MIN_ID',
  'STATIC_SITE_BUCKET',
  'LABEL_KEY_RESERVED_PREFIXES',
  'TEAM_SYNC_WORKER_FREQUENCY',
  'DOCUMENTATION_METADATA',
  'DOCUMENTATION_LOCATION',
  'JSONIFY_PRETTYPRINT_REGULAR',
  'SYSTEM_LOGS_FILE',
  'SYSTEM_LOGS_PATH',
  'SYSTEM_SERVICES_PATH',
  'TUF_GUN_PREFIX',
  'LOGGING_LEVEL',
  'SIGNED_GRANT_EXPIRATION_SEC',
  'PROMETHEUS_AGGREGATOR_URL',
  'DB_TRANSACTION_FACTORY',
  'NOTIFICATION_SEND_TIMEOUT',
  'QUEUE_METRICS_TYPE',
  'MAIL_FAIL_SILENTLY',
  'LOCAL_OAUTH_HANDLER',
  'USE_CDN',
  'ANALYTICS_TYPE',
  'LAST_ACCESSED_UPDATE_THRESHOLD_S',

  'EXCEPTION_LOG_TYPE',
  'SENTRY_DSN',
  'SENTRY_PUBLIC_DSN',

  'BILLED_NAMESPACE_MAXIMUM_BUILD_COUNT',
  'THREAT_NAMESPACE_MAXIMUM_BUILD_COUNT',
  'IP_DATA_API_KEY',

  'SECURITY_SCANNER_ENDPOINT_BATCH',
  'SECURITY_SCANNER_API_TIMEOUT_SECONDS',
  'SECURITY_SCANNER_API_TIMEOUT_POST_SECONDS',
  'SECURITY_SCANNER_ENGINE_VERSION_TARGET',
  'SECURITY_SCANNER_READONLY_FAILOVER_ENDPOINTS',
  'SECURITY_SCANNER_API_VERSION',

  'DATA_MODEL_CACHE_CONFIG',

  # TODO: move this into the schema once we support signing in QE.
  'FEATURE_SIGNING',
  'TUF_SERVER',

  'V1_ONLY_DOMAIN',
}

CONFIG_SCHEMA = {
  'type': 'object',
  'description': 'Schema for Quay configuration',
  'required': [
    'PREFERRED_URL_SCHEME',
    'SERVER_HOSTNAME',
    'DB_URI',
    'AUTHENTICATION_TYPE',
    'DISTRIBUTED_STORAGE_CONFIG',
    'BUILDLOGS_REDIS',
    'USER_EVENTS_REDIS',
    'DISTRIBUTED_STORAGE_PREFERENCE',
    'DEFAULT_TAG_EXPIRATION',
    'TAG_EXPIRATION_OPTIONS',
  ],
  'properties': {
    # Hosting.
    'PREFERRED_URL_SCHEME': {
      'type': 'string',
      'description': 'The URL scheme to use when hitting Quay. If Quay is behind SSL *at all*, this *must* be `https`',
      'enum': ['http', 'https'],
      'x-example': 'https',
    },
    'SERVER_HOSTNAME': {
      'type': 'string',
      'description': 'The URL at which Quay is accessible, without the scheme.',
      'x-example': 'quay.io',
    },
    'EXTERNAL_TLS_TERMINATION': {
      'type': 'boolean',
      'description': 'If TLS is supported, but terminated at a layer before Quay, must be true.',
      'x-example': True,
    },

    # User-visible configuration.
    'REGISTRY_TITLE': {
      'type': 'string',
      'description': 'If specified, the long-form title for the registry. Defaults to `Quay Enterprise`.',
      'x-example': 'Corp Container Service',
    },
    'REGISTRY_TITLE_SHORT': {
      'type': 'string',
      'description': 'If specified, the short-form title for the registry. Defaults to `Quay Enterprise`.',
      'x-example': 'CCS',
    },
    'CONTACT_INFO': {
      'type': 'array',
      'minItems': 1,
      'uniqueItems': True,
      'description': 'If specified, contact information to display on the contact page. ' +
                     'If only a single piece of contact information is specified, the contact footer will link directly.',
      'items': [
        {
          'type': 'string',
          'pattern': '^mailto:(.)+$',
          'x-example': 'mailto:support@quay.io',
          'description': 'Adds a link to send an e-mail',
        },
        {
          'type': 'string',
          'pattern': '^irc://(.)+$',
          'x-example': 'irc://chat.freenode.net:6665/quay',
          'description': 'Adds a link to visit an IRC chat room',
        },
        {
          'type': 'string',
          'pattern': '^tel:(.)+$',
          'x-example': 'tel:+1-888-930-3475',
          'description': 'Adds a link to call a phone number',
        },
        {
          'type': 'string',
          'pattern': '^http(s)?://(.)+$',
          'x-example': 'https://twitter.com/quayio',
          'description': 'Adds a link to a defined URL',
        },
      ],
    },
    'SEARCH_RESULTS_PER_PAGE' : {
        'type': 'number',
        'description': 'Number of results returned per page by search page. Defaults to 10',
        'x-example': 10,
    },
    'SEARCH_MAX_RESULT_PAGE_COUNT' : {
        'type': 'number',
        'description': 'Maximum number of pages the user can paginate in search before they are limited. Defaults to 10',
        'x-example': 10,
    },

    # E-mail.
    'FEATURE_MAILING': {
      'type': 'boolean',
      'description': 'Whether emails are enabled. Defaults to True',
      'x-example': True,
    },
    'MAIL_SERVER': {
      'type': 'string',
      'description': 'The SMTP server to use for sending e-mails. Only required if FEATURE_MAILING is set to true.',
      'x-example': 'smtp.somedomain.com',
    },
    'MAIL_USE_TLS': {
      'type': 'boolean',
      'description': 'If specified, whether to use TLS for sending e-mails.',
      'x-example': True,
    },
    'MAIL_PORT': {
      'type': 'number',
      'description': 'The SMTP port to use. If not specified, defaults to 587.',
      'x-example': 588,
    },
    'MAIL_USERNAME': {
      'type': ['string', 'null'],
      'description': 'The SMTP username to use when sending e-mails.',
      'x-example': 'myuser',
    },
    'MAIL_PASSWORD': {
      'type': ['string', 'null'],
      'description': 'The SMTP password to use when sending e-mails.',
      'x-example': 'mypassword',
    },
    'MAIL_DEFAULT_SENDER': {
      'type': ['string', 'null'],
      'description': 'If specified, the e-mail address used as the `from` when Quay sends e-mails. If none, defaults to `support@quay.io`.',
      'x-example': 'support@myco.com',
    },

    # Database.
    'DB_URI': {
      'type': 'string',
      'description': 'The URI at which to access the database, including any credentials.',
      'x-example': 'mysql+pymysql://username:password@dns.of.database/quay',
      'x-reference': 'https://www.postgresql.org/docs/9.3/static/libpq-connect.html#AEN39495',
    },
    'DB_CONNECTION_ARGS': {
      'type': 'object',
      'description': 'If specified, connection arguments for the database such as timeouts and SSL.',
      'properties': {
        'threadlocals': {
          'type': 'boolean',
          'description': 'Whether to use thread-local connections. Should *ALWAYS* be `true`'
        },
        'autorollback': {
          'type': 'boolean',
          'description': 'Whether to use auto-rollback connections. Should *ALWAYS* be `true`'
        },
        'ssl': {
          'type': 'object',
          'description': 'SSL connection configuration',
          'properties': {
            'ca': {
              'type': 'string',
              'description': '*Absolute container path* to the CA certificate to use for SSL connections',
              'x-example': 'conf/stack/ssl-ca-cert.pem',
            },
          },
          'required': ['ca'],
        },
      },
      'required': ['threadlocals', 'autorollback'],
    },
    'ALLOW_PULLS_WITHOUT_STRICT_LOGGING': {
      'type': 'boolean',
      'description': 'If true, pulls in which the pull audit log entry cannot be written will ' +
                     'still succeed. Useful if the database can fallback into a read-only state ' +
                     'and it is desired for pulls to continue during that time. Defaults to False.',
      'x-example': True,
    },

    # Storage.
    'FEATURE_STORAGE_REPLICATION': {
      'type': 'boolean',
      'description': 'Whether to automatically replicate between storage engines. Defaults to False',
      'x-example': False,
    },
    'FEATURE_PROXY_STORAGE': {
      'type': 'boolean',
      'description': 'Whether to proxy all direct download URLs in storage via the registry nginx. Defaults to False',
      'x-example': False,
    },
    'MAXIMUM_LAYER_SIZE': {
      'type': 'string',
      'description': 'Maximum allowed size of an image layer. Defaults to 20G',
      'x-example': '100G',
      'pattern': '^[0-9]+(G|M)$',
    },
    'DISTRIBUTED_STORAGE_CONFIG': {
      'type': 'object',
      'description': 'Configuration for storage engine(s) to use in Quay. Each key is a unique ID' +
                     ' for a storage engine, with the value being a tuple of the type and ' +
                     ' configuration for that engine.',
      'x-example': {
        'local_storage': ['LocalStorage', {'storage_path': 'some/path/'}],
      },
      'items': {
        'type': 'array',
      },
    },
    'DISTRIBUTED_STORAGE_PREFERENCE': {
      'type': 'array',
      'description': 'The preferred storage engine(s) (by ID in DISTRIBUTED_STORAGE_CONFIG) to ' +
                     'use. A preferred engine means it is first checked for pullig and images are ' +
                     'pushed to it.',
      'items': {
        'type': 'string',
        'uniqueItems': True,
      },
      'x-example': ['s3_us_east', 's3_us_west'],
    },
    'DISTRIBUTED_STORAGE_DEFAULT_LOCATIONS': {
      'type': 'array',
      'description': 'The list of storage engine(s) (by ID in DISTRIBUTED_STORAGE_CONFIG) whose ' +
                     'images should be fully replicated, by default, to all other storage engines.',
      'items': {
        'type': 'string',
        'uniqueItems': True,
      },
      'x-example': ['s3_us_east', 's3_us_west'],
    },
    'USERFILES_LOCATION': {
      'type': 'string',
      'description': 'ID of the storage engine in which to place user-uploaded files',
      'x-example': 's3_us_east',
    },
    'USERFILES_PATH': {
      'type': 'string',
      'description': 'Path under storage in which to place user-uploaded files',
      'x-example': 'userfiles',
    },
    'ACTION_LOG_ARCHIVE_LOCATION': {
      'type': 'string',
      'description': 'If action log archiving is enabled, the storage engine in which to place the ' +
                     'archived data.',
      'x-example': 's3_us_east',
    },
    'ACTION_LOG_ARCHIVE_PATH': {
      'type': 'string',
      'description': 'If action log archiving is enabled, the path in storage in which to place the ' +
                     'archived data.',
      'x-example': 'archives/actionlogs',
    },
    'ACTION_LOG_ROTATION_THRESHOLD': {
        'type': 'string',
        'description': 'If action log archiving is enabled, the time interval after which to ' +
                       'archive data.',
        'x-example': '30d',
    },
    'LOG_ARCHIVE_LOCATION': {
      'type': 'string',
      'description': 'If builds are enabled, the storage engine in which to place the ' +
                     'archived build logs.',
      'x-example': 's3_us_east',
    },
    'LOG_ARCHIVE_PATH': {
      'type': 'string',
      'description': 'If builds are enabled, the path in storage in which to place the ' +
                     'archived build logs.',
      'x-example': 'archives/buildlogs',
    },

    # Authentication.
    'AUTHENTICATION_TYPE': {
      'type': 'string',
      'description': 'The authentication engine to use for credential authentication.',
      'x-example': 'Database',
      'enum': ['Database', 'LDAP', 'JWT', 'Keystone', 'OIDC', 'AppToken'],
    },
    'SUPER_USERS': {
      'type': 'array',
      'description': 'Quay usernames of those users to be granted superuser privileges',
      'uniqueItems': True,
      'items': {
        'type': 'string',
      },
    },
    'DIRECT_OAUTH_CLIENTID_WHITELIST': {
      'type': 'array',
      'description': 'A list of client IDs of *Quay-managed* applications that are allowed ' +
                     'to perform direct OAuth approval without user approval.',
      'x-reference': 'https://coreos.com/quay-enterprise/docs/latest/direct-oauth.html',
      'uniqueItems': True,
      'items': {
        'type': 'string',
      },
    },

    # Redis.
    'BUILDLOGS_REDIS': {
      'type': 'object',
      'description': 'Connection information for Redis for build logs caching',
      'required': ['host'],
      'properties': {
        'host': {
          'type': 'string',
          'description': 'The hostname at which Redis is accessible',
          'x-example': 'my.redis.cluster',
        },
        'port': {
          'type': 'number',
          'description': 'The port at which Redis is accessible',
          'x-example': 1234,
        },
        'password': {
          'type': 'string',
          'description': 'The password to connect to the Redis instance',
          'x-example': 'mypassword',
        },
      },
    },
    'USER_EVENTS_REDIS': {
      'type': 'object',
      'description': 'Connection information for Redis for user event handling',
      'required': ['host'],
      'properties': {
        'host': {
          'type': 'string',
          'description': 'The hostname at which Redis is accessible',
          'x-example': 'my.redis.cluster',
        },
        'port': {
          'type': 'number',
          'description': 'The port at which Redis is accessible',
          'x-example': 1234,
        },
        'password': {
          'type': 'string',
          'description': 'The password to connect to the Redis instance',
          'x-example': 'mypassword',
        },
      },
    },

    # OAuth configuration.
    'GITHUB_LOGIN_CONFIG': {
      'type': ['object', 'null'],
      'description': 'Configuration for using GitHub (Enterprise) as an external login provider',
      'required': ['CLIENT_ID', 'CLIENT_SECRET'],
      'x-reference': 'https://coreos.com/quay-enterprise/docs/latest/github-auth.html',
      'properties': {
        'GITHUB_ENDPOINT': {
          'type': 'string',
          'description': 'The endpoint of the GitHub (Enterprise) being hit',
          'x-example': 'https://github.com/',
        },
        'API_ENDPOINT': {
          'type': 'string',
          'description': 'The endpoint of the GitHub (Enterprise) API to use. Must be overridden for github.com',
          'x-example': 'https://api.github.com/',
        },
        'CLIENT_ID': {
          'type': 'string',
          'description': 'The registered client ID for this Quay instance; cannot be shared with GITHUB_TRIGGER_CONFIG',
          'x-example': '0e8dbe15c4c7630b6780',
          'x-reference': 'https://coreos.com/quay-enterprise/docs/latest/github-app.html',
        },
        'CLIENT_SECRET': {
          'type': 'string',
          'description': 'The registered client secret for this Quay instance',
          'x-example': 'e4a58ddd3d7408b7aec109e85564a0d153d3e846',
          'x-reference': 'https://coreos.com/quay-enterprise/docs/latest/github-app.html',
        },
        'ORG_RESTRICT': {
          'type': 'boolean',
          'description': 'If true, only users within the organization whitelist can login using this provider',
          'x-example': True,
        },
        'ALLOWED_ORGANIZATIONS': {
          'type': 'array',
          'description': 'The names of the GitHub (Enterprise) organizations whitelisted to work with the ORG_RESTRICT option',
          'uniqueItems': True,
          'items': {
              'type': 'string',
          },
        },
      },
    },
    'BITBUCKET_TRIGGER_CONFIG': {
      'type': ['object', 'null'],
      'description': 'Configuration for using BitBucket for build triggers',
      'required': ['CONSUMER_KEY', 'CONSUMER_SECRET'],
      'x-reference': 'https://coreos.com/quay-enterprise/docs/latest/bitbucket-build.html',
      'properties': {
        'CONSUMER_KEY': {
          'type': 'string',
          'description': 'The registered consumer key (client ID) for this Quay instance',
          'x-example': '0e8dbe15c4c7630b6780',
        },
        'CONSUMER_SECRET': {
          'type': 'string',
          'description': 'The registered consumer secret (client secret) for this Quay instance',
          'x-example': 'e4a58ddd3d7408b7aec109e85564a0d153d3e846',
        },
      },
    },
    'GITHUB_TRIGGER_CONFIG': {
      'type': ['object', 'null'],
      'description': 'Configuration for using GitHub (Enterprise) for build triggers',
      'required': ['GITHUB_ENDPOINT', 'CLIENT_ID', 'CLIENT_SECRET'],
      'x-reference': 'https://coreos.com/quay-enterprise/docs/latest/github-build.html',
      'properties': {
        'GITHUB_ENDPOINT': {
          'type': 'string',
          'description': 'The endpoint of the GitHub (Enterprise) being hit',
          'x-example': 'https://github.com/',
        },
        'API_ENDPOINT': {
          'type': 'string',
          'description': 'The endpoint of the GitHub (Enterprise) API to use. Must be overridden for github.com',
          'x-example': 'https://api.github.com/',
        },
        'CLIENT_ID': {
          'type': 'string',
          'description': 'The registered client ID for this Quay instance; cannot be shared with GITHUB_LOGIN_CONFIG',
          'x-example': '0e8dbe15c4c7630b6780',
          'x-reference': 'https://coreos.com/quay-enterprise/docs/latest/github-app.html',
        },
        'CLIENT_SECRET': {
          'type': 'string',
          'description': 'The registered client secret for this Quay instance',
          'x-example': 'e4a58ddd3d7408b7aec109e85564a0d153d3e846',
          'x-reference': 'https://coreos.com/quay-enterprise/docs/latest/github-app.html',
        },
      },
    },
    'GOOGLE_LOGIN_CONFIG': {
      'type': ['object', 'null'],
      'description': 'Configuration for using Google for external authentication',
      'required': ['CLIENT_ID', 'CLIENT_SECRET'],
      'properties': {
        'CLIENT_ID': {
          'type': 'string',
          'description': 'The registered client ID for this Quay instance',
          'x-example': '0e8dbe15c4c7630b6780',
        },
        'CLIENT_SECRET': {
          'type': 'string',
          'description': 'The registered client secret for this Quay instance',
          'x-example': 'e4a58ddd3d7408b7aec109e85564a0d153d3e846',
        },
      },
    },
    'GITLAB_TRIGGER_CONFIG': {
      'type': ['object', 'null'],
      'description': 'Configuration for using Gitlab (Enterprise) for external authentication',
      'required': ['GITLAB_ENDPOINT', 'CLIENT_ID', 'CLIENT_SECRET'],
      'properties': {
        'GITLAB_ENDPOINT': {
          'type': 'string',
          'description': 'The endpoint at which Gitlab(Enterprise) is running',
          'x-example': 'https://gitlab.com',
        },
        'CLIENT_ID': {
          'type': 'string',
          'description': 'The registered client ID for this Quay instance',
          'x-example': '0e8dbe15c4c7630b6780',
        },
        'CLIENT_SECRET': {
          'type': 'string',
          'description': 'The registered client secret for this Quay instance',
          'x-example': 'e4a58ddd3d7408b7aec109e85564a0d153d3e846',
        },
      },
    },

    # Health.
    'HEALTH_CHECKER': {
      'description': 'The configured health check.',
      'x-example': ('RDSAwareHealthCheck', {'access_key': 'foo', 'secret_key': 'bar'}),
    },

    # Metrics.
    'PROMETHEUS_NAMESPACE': {
      'type': 'string',
      'description': 'The prefix applied to all exposed Prometheus metrics. Defaults to `quay`',
      'x-example': 'myregistry',
    },

    # Misc configuration.
    'BLACKLIST_V2_SPEC': {
      'type': 'string',
      'description': 'The Docker CLI versions to which Quay will respond that V2 is *unsupported*. Defaults to `<1.6.0`',
      'x-reference': 'http://pythonhosted.org/semantic_version/reference.html#semantic_version.Spec',
      'x-example': '<1.8.0',
    },
    'USER_RECOVERY_TOKEN_LIFETIME': {
      'type': 'string',
      'description': 'The length of time a token for recovering a user accounts is valid. Defaults to 30m.',
      'x-example': '10m',
      'pattern': '^[0-9]+(w|m|d|h|s)$',
    },
    'SESSION_COOKIE_SECURE': {
      'type': 'boolean',
      'description': 'Whether the `secure` property should be set on session cookies. ' + 
                     'Defaults to False. Recommended to be True for all installations using SSL.',
      'x-example': True,
      'x-reference': 'https://en.wikipedia.org/wiki/Secure_cookies',
    },
    'PUBLIC_NAMESPACES': {
      'type': 'array',
      'description': 'If a namespace is defined in the public namespace list, then it will appear on *all*' +
                     ' user\'s repository list pages, regardless of whether that user is a member of the namespace.' +
                     ' Typically, this is used by an enterprise customer in configuring a set of "well-known"' +
                     ' namespaces.',
      'uniqueItems': True,
      'items': {
        'type': 'string',
      },
    },
    'AVATAR_KIND': {
      'type': 'string',
      'description': 'The types of avatars to display, either generated inline (local) or Gravatar (gravatar)',
      'enum': ['local', 'gravatar'],
    },
    'V2_PAGINATION_SIZE': {
      'type': 'number',
      'description': 'The number of results returned per page in V2 registry APIs',
      'x-example': 100,
    },
    'ENABLE_HEALTH_DEBUG_SECRET': {
      'type': ['string', 'null'],
      'description': 'If specified, a secret that can be given to health endpoints to see full debug info when' +
                     'not authenticated as a superuser',
      'x-example': 'somesecrethere',
    },
    'BROWSER_API_CALLS_XHR_ONLY': {
      'type': 'boolean',
      'description': 'If enabled, only API calls marked as being made by an XHR will be allowed from browsers. Defaults to True.',
      'x-example': False,
    },

    # Time machine and tag expiration settings.
    'FEATURE_CHANGE_TAG_EXPIRATION': {
      'type': 'boolean',
      'description': 'Whether users and organizations are allowed to change the tag expiration for tags in their namespace. Defaults to True.',
      'x-example': False,
    },
    'DEFAULT_TAG_EXPIRATION': {
      'type': 'string',
      'description': 'The default, configurable tag expiration time for time machine. Defaults to `2w`.',
      'pattern': '^[0-9]+(w|m|d|h|s)$',
    },
    'TAG_EXPIRATION_OPTIONS': {
      'type': 'array',
      'description': 'The options that users can select for expiration of tags in their namespace (if enabled)',
      'items': {
        'type': 'string',
        'pattern': '^[0-9]+(w|m|d|h|s)$',
      },
    },

    # Team syncing.
    'FEATURE_TEAM_SYNCING': {
      'type': 'boolean',
      'description': 'Whether to allow for team membership to be synced from a backing group in the authentication engine (LDAP or Keystone)',
      'x-example': True,
    },
    'TEAM_RESYNC_STALE_TIME': {
      'type': 'string',
      'description': 'If team syncing is enabled for a team, how often to check its membership and resync if necessary (Default: 30m)',
      'x-example': '2h',
      'pattern': '^[0-9]+(w|m|d|h|s)$',
    },
    'FEATURE_NONSUPERUSER_TEAM_SYNCING_SETUP': {
      'type': 'boolean',
      'description': 'If enabled, non-superusers can setup syncing on teams to backing LDAP or Keystone. Defaults To False.',
      'x-example': True,
    },

    # Security scanning.
    'FEATURE_SECURITY_SCANNER': {
      'type': 'boolean',
      'description': 'Whether to turn of/off the security scanner. Defaults to False',
      'x-example': False,
      'x-reference': 'https://coreos.com/quay-enterprise/docs/latest/security-scanning.html',
    },
    'FEATURE_SECURITY_NOTIFICATIONS': {
      'type': 'boolean',
      'description': 'If the security scanner is enabled, whether to turn of/off security notificaitons. Defaults to False',
      'x-example': False,
    },
    'SECURITY_SCANNER_ENDPOINT' : {
      'type': 'string',
      'pattern': '^http(s)?://(.)+$',
      'description': 'The endpoint for the security scanner',
      'x-example': 'http://192.168.99.101:6060' ,
    },
    'SECURITY_SCANNER_INDEXING_INTERVAL': {
      'type': 'number',
      'description': 'The number of seconds between indexing intervals in the security scanner. Defaults to 30.',
      'x-example': 30,
    },

    # Bittorrent support.
    'FEATURE_BITTORRENT': {
      'type': 'boolean',
      'description': 'Whether to allow using Bittorrent-based pulls. Defaults to False',
      'x-example': False,
      'x-reference': 'https://coreos.com/quay-enterprise/docs/latest/bittorrent.html',
    },
    'BITTORRENT_PIECE_SIZE': {
       'type': 'number',
       'description': 'The bittorent piece size to use. If not specified, defaults to 512 * 1024.',
       'x-example': 512 * 1024,
    },
    'BITTORRENT_ANNOUNCE_URL': {
       'type': 'string',
       'pattern': '^http(s)?://(.)+$',
       'description': 'The URL of the announce endpoint on the bittorrent tracker',
       'x-example': 'https://localhost:6881/announce',
    },

    # Build
    'FEATURE_GITHUB_BUILD': {
      'type': 'boolean',
      'description': 'Whether to support GitHub build triggers. Defaults to False',
      'x-example': False,
    },
    'FEATURE_BITBUCKET_BUILD': {
      'type': 'boolean',
      'description': 'Whether to support Bitbucket build triggers. Defaults to False',
      'x-example': False,
    },
    'FEATURE_GITLAB_BUILD': {
      'type': 'boolean',
      'description': 'Whether to support GitLab build triggers. Defaults to False',
      'x-example': False,
    },
    'FEATURE_BUILD_SUPPORT': {
      'type': 'boolean',
      'description': 'Whether to support Dockerfile build. Defaults to True',
      'x-example': True,
    },
    'DEFAULT_NAMESPACE_MAXIMUM_BUILD_COUNT': {
      'type': ['number', 'null'],
      'description': 'If not None, the default maximum number of builds that can be queued in a namespace.',
      'x-example': 20,
    },
    'SUCCESSIVE_TRIGGER_INTERNAL_ERROR_DISABLE_THRESHOLD': {
      'type': ['number', 'null'],
      'description': 'If not None, the number of successive internal errors that can occur before a build trigger is automatically disabled. Defaults to 5.',
      'x-example': 10,
    },
    'SUCCESSIVE_TRIGGER_FAILURE_DISABLE_THRESHOLD': {
      'type': ['number', 'null'],
      'description': 'If not None, the number of successive failures that can occur before a build trigger is automatically disabled. Defaults to 100.',
      'x-example': 50,
    },

    # Login
    'FEATURE_GITHUB_LOGIN': {
      'type': 'boolean',
      'description': 'Whether GitHub login is supported. Defaults to False',
      'x-example': False,
    },
    'FEATURE_GOOGLE_LOGIN': {
      'type': 'boolean',
      'description': 'Whether Google login is supported. Defaults to False',
      'x-example': False,
    },

    # Recaptcha
    'FEATURE_RECAPTCHA': {
      'type': 'boolean',
      'description': 'Whether Recaptcha is necessary for user login and recovery. Defaults to False',
      'x-example': False,
      'x-reference': 'https://www.google.com/recaptcha/intro/',
    },
    'RECAPTCHA_SITE_KEY': {
      'type': ['string', 'null'],
      'description': 'If recaptcha is enabled, the site key for the Recaptcha service',
    },
    'RECAPTCHA_SECRET_KEY': {
      'type': ['string', 'null'],
      'description': 'If recaptcha is enabled, the secret key for the Recaptcha service',
    },

    # External application tokens.
    'FEATURE_APP_SPECIFIC_TOKENS': {
      'type': 'boolean',
      'description': 'If enabled, users can create tokens for use by the Docker CLI. Defaults to True',
      'x-example': False,
    },

    'APP_SPECIFIC_TOKEN_EXPIRATION': {
      'type': ['string', 'null'],
      'description': 'The expiration for external app tokens. Defaults to None.',
      'pattern': '^[0-9]+(w|m|d|h|s)$',      
    },

    'EXPIRED_APP_SPECIFIC_TOKEN_GC': {
      'type': ['string', 'null'],
      'description': 'Duration of time expired external app tokens will remain before being garbage collected. Defaults to 1d.',
      'pattern': '^[0-9]+(w|m|d|h|s)$',
    },

    # Feature Flag: Aggregated log retrieval.
    'FEATURE_AGGREGATED_LOG_COUNT_RETRIEVAL': {
      'type': 'boolean',
      'description': 'Whether to allow retrieval of aggregated log counts. Defaults to True',
      'x-example': True,
    },

    # Feature Flag: Log export.
    'FEATURE_LOG_EXPORT': {
      'type': 'boolean',
      'description': 'Whether to allow exporting of action logs. Defaults to True',
      'x-example': True,
    },

    # Feature Flag: User last accessed.
    'FEATURE_USER_LAST_ACCESSED': {
      'type': 'boolean',
      'description': 'Whether to record the last time a user was accessed. Defaults to True',
      'x-example': True,
    },

    # Feature Flag: Permanent Sessions.
    'FEATURE_PERMANENT_SESSIONS': {
      'type': 'boolean',
      'description': 'Whether sessions are permanent. Defaults to True',
      'x-example': True,
    },

    # Feature Flag: Super User Support.
    'FEATURE_SUPER_USERS': {
      'type': 'boolean',
      'description': 'Whether super users are supported. Defaults to True',
      'x-example': True,
    },

    # Feature Flag: Anonymous Users.
    'FEATURE_ANONYMOUS_ACCESS': {
      'type': 'boolean',
      'description': ' Whether to allow anonymous users to browse and pull public repositories. Defaults to True',
      'x-example': True,
    },

    # Feature Flag: User Creation.
    'FEATURE_USER_CREATION': {
      'type': 'boolean',
      'description': 'Whether users can be created (by non-super users). Defaults to True',
      'x-example': True,
    },

    # Feature Flag: Invite Only User Creation.
    'FEATURE_INVITE_ONLY_USER_CREATION': {
      'type': 'boolean',
      'description': 'Whether users being created must be invited by another user. Defaults to False',
      'x-example': False,
    },

    # Feature Flag: Encrypted Basic Auth.
    'FEATURE_REQUIRE_ENCRYPTED_BASIC_AUTH': {
      'type': 'boolean',
      'description': 'Whether non-encrypted passwords (as opposed to encrypted tokens) can be used for basic auth. Defaults to False',
      'x-example': False,
    },

    # Feature Flag: Direct Login.
    'FEATURE_DIRECT_LOGIN': {
      'type': 'boolean',
      'description': 'Whether users can directly login to the UI. Defaults to True',
      'x-example': True,
    },

    # Feature Flag: Advertising V2.
    'FEATURE_ADVERTISE_V2': {
      'type': 'boolean',
      'description': 'Whether the v2/ endpoint is visible. Defaults to True',
      'x-example': True,
    },

    # Feature Flag: Log Rotation.
    'FEATURE_ACTION_LOG_ROTATION': {
      'type': 'boolean',
      'description': 'Whether or not to rotate old action logs to storage. Defaults to False',
      'x-example': False,
    },

    # Feature Flag: ACI Conversion.
    'FEATURE_ACI_CONVERSION': {
      'type': 'boolean',
      'description': 'Whether to enable conversion to ACIs. Defaults to False',
      'x-example': False,
    },

    # Feature Flag: Library Support.
    'FEATURE_LIBRARY_SUPPORT': {
      'type': 'boolean',
      'description': 'Whether to allow for "namespace-less" repositories when pulling and pushing from Docker. Defaults to True',
      'x-example': True,
    },

    # Feature Flag: Require Team Invite.
    'FEATURE_REQUIRE_TEAM_INVITE': {
      'type': 'boolean',
      'description': 'Whether to require invitations when adding a user to a team. Defaults to True',
      'x-example': True,
    },

    # Feature Flag: Collecting and Supporting Metadata.
    'FEATURE_USER_METADATA': {
      'type': 'boolean',
      'description': 'Whether to collect and support user metadata. Defaults to False',
      'x-example': False,
    },

    # Feature Flag: Support App Registry.
    'FEATURE_APP_REGISTRY': {
      'type': 'boolean',
      'description': 'Whether to enable support for App repositories. Defaults to False',
      'x-example': False,
    },

    # Feature Flag: Read only app registry.
    'FEATURE_READONLY_APP_REGISTRY': {
      'type': 'boolean',
      'description': 'Whether to App repositories are read-only. Defaults to False',
      'x-example': True,
    },

    # Feature Flag: Public Reposiotires in _catalog Endpoint.
    'FEATURE_PUBLIC_CATALOG': {
      'type': 'boolean',
      'description': 'If set to true, the _catalog endpoint returns public repositories. Otherwise, only private repositories can be returned. Defaults to False',
      'x-example': False,
    },

    # Feature Flag: Reader Build Logs.
    'FEATURE_READER_BUILD_LOGS': {
      'type': 'boolean',
      'description': 'If set to true, build logs may be read by those with read access to the repo, rather than only write access or admin access. Defaults to False',
      'x-example': False,
    },

    # Feature Flag: Usernames Autocomplete.
    'FEATURE_PARTIAL_USER_AUTOCOMPLETE': {
      'type': 'boolean',
      'description': 'If set to true, autocompletion will apply to partial usernames. Defaults to True',
      'x-example': True,
    },

    # Feature Flag: User log access.
    'FEATURE_USER_LOG_ACCESS': {
      'type': 'boolean',
      'description': 'If set to true, users will have access to audit logs for their namespace. Defaults to False',
      'x-example': True,
    },

    # Feature Flag: User renaming.
    'FEATURE_USER_RENAME': {
      'type': 'boolean',
      'description': 'If set to true, users can rename their own namespace. Defaults to False',
      'x-example': True,
    },

    # Feature Flag: Username confirmation.
    'FEATURE_USERNAME_CONFIRMATION': {
      'type': 'boolean',
      'description': 'If set to true, users can confirm their generated usernames. Defaults to True',
      'x-example': False,
    },
 },
}