Custom mapping

Custom mapping allows you to dynamically assign users to your Snyk Groups and Organizations based on data provided by your Identity Provider (IdP), in order to implement a scaled user provisioning and access model.

Work with your Snyk account team to implement this option.

To understand more about roles and permissions within Snyk, see Pre-defined roles. See also user role management.

Requirements for custom mapping

• Complete the SSO information worksheet for the appropriate IdP (identity provider) found in Resources for SSO setup.

• Properly configure the custom attributes in your IdP to populate the roles array mapping. See Example: roles array mapping.

Custom Mapping options

Snyk now offers an updated custom mapping option explained on this page, with increased flexibility, including the ability to grant users Group-level custom roles as well as pre-defined roles.

The Snyk Legacy custom mapping option is still supported.

Roles array mapping with Snyk

In the IdP, you must first pass a custom mapping called roles as a string array. Examples of how to set this up for different IdPs are provided.

Refer to your IdP documentation for further information on how to configure custom mappings.

Custom mapping assertions

This section documents the role assertions that Snyk expects in order to map correctly to Snyk roles within Snyk Groups and Organizations.

Role assertion format

Role assertions should be provided to Snyk in the following format:

snyk:{scope}:{target}:{role}

Where:

snyk is a fixed prefix for the role mapping. Required.

scope can be one of org or group.Required; if a role mapping does not contain a valid scope, it will be ignored.

target can be a slug of org or group where the role will be granted. See slugs to find this information. Optional; an asterisk ( *) or an empty string can be used to apply to all resources that are associated with the SSO connection.

role is the normalized name of the required role. See Role normalized name to find this information.

• Required; if not role is present, the role mapping is ignored.

• If the role begins with custom: then it is understood to be a custom role created in that Group.

• Built-in roles should not have the custom: prefix, so values like org_admin, org_collaborator, group_viewer will refer to the Snyk pre-defined roles.

Users must only have one role mapped per Organization or Group. Mapping multiple roles except when using wildcards is not supported and can lead to unexpected behavior.

Example role assertions

• snyk:group:*:admin Assign the user the Group admin role for all groups associated with the SSO connection.

• snyk:group::custom:sysadmin Assign the user the custom Group-level role Sys Admin for all groups associated with the SSO connection.

  • Note that :: here indicates an empty string for the target, and so is treated as a wildcard in the preceding example.

  • Note that this Group-level custom role must be created manually before it can be assigned.

• snyk:org:my-default-org:admin Assign the user the Organization Admin Organization-level role for the Organization my-default-org.

Example role assertions array

An example of a set of role assertions for a user follows:

{
    "roles": [
        "snyk:group:*:group_viewer",
        "snyk:org:development:org_admin",
        "snyk:org:test-org-N58YhztauHcaMiNfvi5fbL:custom:developer_readonly",
    ]
}

The system also supports comma-separated lists of roles instead of an array.

{
  "roles": "snyk:group:*:group_viewer, snyk:org:development:org_admin, 
snyk:org:test-org-N58YhztauHcaMiNfvi5fbL:custom:developer_readonly"
}

These assertions will assign the user:

• The pre-defined Group-level role Group Viewer for all groups in the SSO. See pre-defined roles for the permission this grants

• The pre-defined Organization-level role Organization Admin for the Organization with the name Development.

• The custom Organization-level role Developer ReadOnly for the Organization with the name Test Org, which has the slug test-org-N58YhztauHcaMiNfvi5fbL.

Wildcards

Custom mapping introduces wildcards, which allow one assertion to assign a user the same role in all Organizations or Groups.

Assertions using wildcards take a lower priority than assertions with a specific target. This means that it is possible, for example, to assign a user a default role for all Organizations, and specific roles in others:

roles: [
        "snyk:org:*:custom:developer_readonly",
        "snyk:org:development:org_admin",
    ]

These role assertions will:

• Grant the user the pre-defined Organization-level role Organization Admin in the Development Organization.

• Grant the user the custom Organization-level role Developer ReadOnly on all other organizations within the SSO connection.

• Grant the user the pre-defined Group-level role Group Member on all groups in the SSO connection. See the note that follows for more details.

Any user that is granted a role in an Organization within the SSO, without an explicit Group-level role in the role assertion, will be assigned the Group Member Group-level role for that Group. This is the pre-defined Group-level role with the fewest permissions and ensures that the user becomes a member of the Group.

Slugs

For a valid role assertion, the Organization or Group slug may be required. This is the canonical name for the Organization or Group within Snyk.

To find an Organization slug, navigate to the settings page for the Organization, and under General settings, the Organization slug value is visible. This can then be copied and used in role assertions in custom mapping.

Organization general settings page, showing the Organization slug

To find the slug of a Group, navigate to the Group Settings, and find the Group slug under General Settings, which you can copy.

Group general settings page, showing the Group slug

Role normalized name

To find the normalized name of a role for use in custom mapping, first confirm that the role exists for the Snyk Group by navigating to it in the Group settings: Group Settings > Member Roles > {Role}.

This will open the role details page showing which permissions are enabled for the role and also show the normalized name. Copy this normalized name and use it in custom mapping.

For more details on roles, and specifically, custom roles, see user role management.

Role details page for Organization Admin role

Pre-defined role slugs

Snyk has a set of pre-defined roles. Their corresponding normalized names are listed below.

Role Type	Role Name	Role Slug
Organization	Org Admin	org_admin
Organization	Org Collaborator	org_collaborator
Group	Group Admin	group_admin
Group	Group Viewer	group_viewer
Group	Group Member	group_member