Fork me on GitHub
Teleport

Database Access with Redshift on AWS

Improve
Federating Amazon Redshift Access using Teleport

Federating Amazon Redshift Access using Teleport

Length: 08:11

This guide will help you to:

  • Set up Teleport to access your AWS Redshift instances.
  • Connect to your databases through Teleport.

Teleport Database Access Redshift Self-Hosted

Prerequisites

  • AWS account with a Redshift cluster and permissions to create and attach IAM policies.
  • A host, e.g., an EC2 instance, where you will run the Teleport Database Service.
  • The tctl and tsh client tools version >= 9.3.7.

    tctl version

    Teleport v9.3.7 go1.17

    tsh version

    Teleport v9.3.7 go1.17

    See Installation for details.

  • A host where you will install the Teleport Auth Service and Proxy Service.

  • A registered domain name.

  • The tctl and tsh client tools version >= 9.3.7, which you can download by visiting the customer portal.

    tctl version

    Teleport v9.3.7 go1.17

    tsh version

    Teleport v9.3.7 go1.17

  • A host where you will install the Teleport Auth Service and Proxy Service.

  • A registered domain name.

  • The tctl and tsh client tools version >= 9.3.8.

    You can download these from Teleport Cloud Downloads.

    tctl version

    Teleport v9.3.8 go1.17

    tsh version

    Teleport v9.3.8 go1.17

To connect to Teleport, log in to your cluster using tsh, then use tctl remotely:

tsh login --proxy=teleport.example.com [email protected]
tctl status

Cluster teleport.example.com

Version 9.3.7

CA pin sha256:abdc1245efgh5678abdc1245efgh5678abdc1245efgh5678abdc1245efgh5678

You can run subsequent tctl commands in this guide on your local machine.

For full privileges, you can also run tctl commands on your Auth Service host.

To connect to Teleport, log in to your cluster using tsh, then use tctl remotely:

tsh login --proxy=myinstance.teleport.sh [email protected]
tctl status

Cluster myinstance.teleport.sh

Version 9.3.8

CA pin sha256:sha-hash-here

You must run subsequent tctl commands in this guide on your local machine.

Step 1/6. Install Teleport

On the host where you will run the Auth Service and Proxy Service, download the latest version of Teleport for your platform from our downloads page and follow the installation instructions.

Teleport requires a valid TLS certificate to operate and can fetch one automatically using Let's Encrypt's ACME protocol. Before Let's Encrypt can issue a TLS certificate for the Teleport Proxy host's domain, the ACME protocol must verify that an HTTPS server is reachable on port 443 of the host.

You can configure the Teleport Proxy service to complete the Let's Encrypt verification process when it starts up.

Run the following teleport configure command, where tele.example.com is the domain name of your Teleport cluster and [email protected] is an email address used for notifications (you can use any domain):

teleport configure --acme [email protected] --cluster-name=tele.example.com > /etc/teleport.yaml

The --acme, --acme-email, and --cluster-name flags will add the following settings to your Teleport configuration file:

proxy_service:
  enabled: "yes"
  web_listen_addr: :443
  public_addr: tele.example.com:443
  acme:
    enabled: "yes"
    email: [email protected]

Port 443 on your Teleport Proxy Service host must allow traffic from all sources.

Next, start the Teleport Auth and Proxy Services:

sudo teleport start

You will run subsequent tctl commands on the host where you started the Auth and Proxy Services.

If you do not have a Teleport Cloud account, use our signup form to get started. Teleport Cloud manages instances of the Proxy Service and Auth Service, and automatically issues and renews the required TLS certificate.

You must log in to your cluster before you can run tctl commands.

tsh login --proxy=mytenant.teleport.sh
tctl status

Step 2/6. Create a Teleport user

Create a local Teleport user with the built-in access role:

tctl users add \ --roles=access \ --db-users=\* \ --db-names=\* \ alice
FlagDescription
--rolesList of roles to assign to the user. The builtin access role allows them to connect to any database server registered with Teleport.
--db-usersList of database usernames the user will be allowed to use when connecting to the databases. A wildcard allows any user.
--db-namesList of logical databases (aka schemas) the user will be allowed to connect to within a database server. A wildcard allows any database.
Warning

Database names are only enforced for PostgreSQL and MongoDB databases.

For more detailed information about database access controls and how to restrict access see RBAC documentation.

Step 3/6. Create a Database Service configuration

The Database Service requires a valid auth token to connect to the cluster. Generate one by running the following command against your Teleport Auth Service and save it in /tmp/token on the node that will run the Database Service:

tctl tokens add --type=db

Install Teleport on the host where you will run the Teleport Database Service:

Download Teleport's PGP public key

sudo curl https://deb.releases.teleport.dev/teleport-pubkey.asc \ -o /usr/share/keyrings/teleport-archive-keyring.asc

Add the Teleport APT repository

echo "deb [signed-by=/usr/share/keyrings/teleport-archive-keyring.asc] https://deb.releases.teleport.dev/ stable main" \| sudo tee /etc/apt/sources.list.d/teleport.list > /dev/null
sudo apt-get update
sudo apt-get install teleport
sudo yum-config-manager --add-repo https://rpm.releases.teleport.dev/teleport.repo
sudo yum install teleport

Optional: Using DNF on newer distributions

$ sudo dnf config-manager --add-repo https://rpm.releases.teleport.dev/teleport.repo

$ sudo dnf install teleport

curl https://get.gravitational.com/teleport-v9.3.7-linux-amd64-bin.tar.gz.sha256

<checksum> <filename>

curl -O https://get.gravitational.com/teleport-v9.3.7-linux-amd64-bin.tar.gz
shasum -a 256 teleport-v9.3.7-linux-amd64-bin.tar.gz

Verify that the checksums match

tar -xzf teleport-v9.3.7-linux-amd64-bin.tar.gz
cd teleport
sudo ./install
curl https://get.gravitational.com/teleport-v9.3.7-linux-arm-bin.tar.gz.sha256

<checksum> <filename>

curl -O https://get.gravitational.com/teleport-v9.3.7-linux-arm-bin.tar.gz
shasum -a 256 teleport-v9.3.7-linux-arm-bin.tar.gz

Verify that the checksums match

tar -xzf teleport-v9.3.7-linux-arm-bin.tar.gz
cd teleport
sudo ./install
curl https://get.gravitational.com/teleport-v9.3.7-linux-arm64-bin.tar.gz.sha256

<checksum> <filename>

curl -O https://get.gravitational.com/teleport-v9.3.7-linux-arm64-bin.tar.gz
shasum -a 256 teleport-v9.3.7-linux-arm64-bin.tar.gz

Verify that the checksums match

tar -xzf teleport-v9.3.7-linux-arm64-bin.tar.gz
cd teleport
sudo ./install

On the node that is running the Database Service, create a configuration file:

teleport db configure create \ -o file \ --proxy=teleport.example.com:3080 \ --token=/tmp/token \ --redshift-discovery=us-west-1

The command will generate a Database Service configuration with Redshift database auto-discovery enabled on the us-west-1 region and place it at the /etc/teleport.yaml location.

Step 4/6. Create an IAM policy for Teleport

Teleport needs AWS IAM permissions to be able to:

  • Discover and register Redshift databases.
  • Manage IAM user or IAM role policies.

Teleport can bootstrap IAM permissions for the Database Service based on its configuration using the teleport db configure bootstrap command. You can use this command in automatic or manual mode:

  • In automatic mode, Teleport will attempt to create appropriate IAM policies and attach them to the specified IAM identity (user or role). This requires IAM permissions to create and attach IAM policies.
  • In manual mode, Teleport will print required IAM policies. You can then create and attach them manually using the AWS management console.
AWS credentials

AWS Credentials are only required if you’re running the command in "automatic" mode. The command uses the default credential provider chain to find AWS credentials. See Specifying Credentials for more information.

Run one of the following commands on your Database Service node:

Use this command to bootstrap the permissions automatically when your Teleport database agent runs as an IAM user (for example, uses an AWS credentials file).

teleport db configure bootstrap -c /etc/teleport.yaml --attach-to-user TeleportUser

Use this command to bootstrap the permissions automatically when your Teleport database agent runs as an IAM role (for example, on an EC2 instance with an attached IAM role).

teleport db configure bootstrap -c /etc/teleport.yaml --attach-to-role TeleportRole

Use this command to display required IAM policies which you will then create in your AWS console:

teleport db configure bootstrap -c /etc/teleport.yaml --manual

See the full bootstrap command reference.

Step 5/6. Start the Database Service

Run the following command on the Database Service node:

teleport start --config=/etc/teleport.yaml

The Database Service will discover all Redshift databases according to the configuration and register them in the cluster. The agent will also attempt to configure IAM access policies for the discovered databases. Keep in mind that AWS IAM changes may not propagate immediately and can take a few minutes to come into effect.

AWS credentials

The Teleport Database Service uses the default credential provider chain to find AWS credentials. See Specifying Credentials for more information.

Step 6/6. Connect

Once the Database Service has started and joined the cluster, log in to see the registered databases. Replace --proxy with the address of your Teleport Proxy Service.

tsh login --proxy=teleport.example.com --user=alice
tsh db ls

Name Description Labels

----------- ------------------------------ --------

my-redshift Redshift cluster in us-east-1 ...

Log in to a particular database using the tsh db login command:

tsh db login my-redshift
Tip

You can be logged into multiple databases simultaneously.

You can optionally specify the database name and the user to use by default when connecting to the database instance:

tsh db login --db-user=awsuser --db-name=dev my-redshift
Database users must exist

Teleport does not currently use the auto-create option when generating tokens for Redshift databases. Users must exist in the database.

Now connect to the database:

tsh db connect my-redshift
Note

The psql command-line client should be available in PATH in order to be able to connect.

To log out of the database and remove credentials:

tsh db logout my-redshift

Next steps