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Version: 14.x

Getting Started With Access Controls

In Teleport, any local, SSO, or robot user can be assigned one or several roles. Roles govern access to databases, SSH servers, Kubernetes clusters, Windows desktops, and web apps.

We will start with local users and preset roles, assign roles to SSO users, and wrap up with creating your own role.

Prerequisites​

  • A running Teleport cluster version 14.3.33 or above. If you want to get started with Teleport, sign up for a free trial or set up a demo environment.

  • The tctl admin tool and tsh client tool.

    Visit Installation for instructions on downloading tctl and tsh.

  • To check that you can connect to your Teleport cluster, sign in with tsh login, then verify that you can run tctl commands using your current credentials. tctl is supported on macOS and Linux machines. For example: 
    $ tsh login --proxy=teleport.example.com [email protected]
    $ tctl status
    # Cluster  teleport.example.com
    # Version  14.3.33
    # CA pin   sha256:abdc1245efgh5678abdc1245efgh5678abdc1245efgh5678abdc1245efgh5678
    If you can connect to the cluster and run the tctl status command, you can use your current credentials to run subsequent tctl commands from your workstation. If you host your own Teleport cluster, you can also run tctl commands on the computer that hosts the Teleport Auth Service for full permissions.
Best practices for production security

When running Teleport in production, you should adhere to the following best practices to avoid security incidents:

  • Avoid using sudo in production environments unless it's necessary.
  • Create new, non-root, users and use test instances for experimenting with Teleport.
  • Run Teleport's services as a non-root user unless required. Only the SSH Service requires root access. Note that you will need root permissions (or the CAP_NET_BIND_SERVICE capability) to make Teleport listen on a port numbered < 1024 (e.g. 443).
  • Follow the principle of least privilege. Don't give users permissive roles when more a restrictive role will do. For example, don't assign users the built-in access,editor roles, which give them permissions to access and edit all cluster resources. Instead, define roles with the minimum required permissions for each user and configure access requests to provide temporary elevated permissions.
  • When you enroll Teleport resources—for example, new databases or applications—you should save the invitation token to a file. If you enter the token directly on the command line, a malicious user could view it by running the history command on a compromised system.

You should note that these practices aren't necessarily reflected in the examples used in documentation. Examples in the documentation are primarily intended for demonstration and for development environments.

Step 1/3. Add local users with preset roles​

Teleport provides several preset roles:

RoleDescription
accessAllows access to cluster resources.
editorAllows editing of cluster configuration settings.
auditorAllows reading cluster events, audit logs, and playing back session records.
requesterEnterprise-only role that allows a user to create Access Requests.
reviewerEnterprise-only role that allows review of Access Requests.
group-accessAllows access to all user groups.
device-adminUsed to manage trusted devices.
device-enrollUsed to grant device enrollment powers to users.
require-trusted-deviceRequires trusted device access to resources.

Invite the local user Alice as cluster editor:

$ tctl users add alice --roles=editor

Once Alice signs up, she will be able to edit cluster configuration. You can list users and their roles using tctl users ls.

$ tctl users ls

# User                 Roles
# -------------------- --------------
# alice                editor

You can update the user's roles using the tctl users update command:

# Once Alice logs back in, she will be able to view audit logs
$ tctl users update alice --set-roles=editor,auditor

Because Alice has two or more roles, permissions from those roles create a union. She will be able to act as a system administrator and auditor at the same time.

Step 2/3. Map SSO users to roles​

Next, follow the instructions to set up an authentication connector that maps users within your SSO solution to Teleport roles.

Save the file below as github.yaml and update the fields. You will need to set up a GitHub OAuth 2.0 Connector app. Any member belonging to the GitHub organization octocats and on team admin will be able to assume the built-in role access.

kind: github
version: v3
metadata:
  # connector name that will be used with `tsh --auth=github login`
  name: github
spec:
  # client ID of GitHub OAuth app
  client_id: client-id
  # client secret of GitHub OAuth app
  client_secret: client-secret
  # This name will be shown on UI login screen
  display: GitHub
  # Change tele.example.com to your domain name
  redirect_url: https://tele.example.com:443/v1/webapi/github/callback
  # Map github teams to teleport roles
  teams_to_roles:
    - organization: octocats # GitHub organization name
      team: admin            # GitHub team name within that organization
      # map github admin team to Teleport's "access" role
      roles: ["access"]

Create the github resource:

$ tctl create github.yaml

Step 3/3. Create a custom role​

Let's create a custom role for interns. Interns will have access to test or staging SSH servers as readonly users. We will let them view some monitoring web applications and dev kubernetes cluster.

Save this role as interns.yaml:

kind: role
version: v6
metadata:
  name: interns
spec:
  allow:
    # Logins configures SSH login principals
    logins: ['readonly']
    # Assigns users with this role to the built-in Kubernetes group "view"
    kubernetes_groups: ["view"]
    # Allow access to SSH nodes, Kubernetes clusters, apps or databases
    # labeled with "staging" or "test"
    node_labels:
      'env': ['staging', 'test']
    kubernetes_labels:
      'env': 'dev'
    kubernetes_resources:
      - kind: 'pod'
        namespace: "*"
        name: "*"
    app_labels:
      'type': ['monitoring']
  # The deny rules always override allow rules.
  deny:
    # deny access to any Node, database, app or Kubernetes cluster labeled
    # as prod as any user.
    node_labels:
      'env': 'prod'
    kubernetes_labels:
      'env': 'prod'
    kubernetes_resources:
      - kind: 'pod'
        namespace: 'prod'
        name: '*'
    db_labels:
      'env': 'prod'
    app_labels:
      'env': 'prod'

Create a role using the tctl create -f command:

$ tctl create -f /tmp/interns.yaml
# Get a list of all roles in the system
$ tctl get roles --format text

Next steps​