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Teleport

Database Access Getting Started Guide

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In this getting started guide we will use Teleport Database Access to connect to a PostgreSQL AWS Aurora database.

Here's an overview of what we will do:

  1. Configure an AWS Aurora database with IAM authentication.
  2. Join the Aurora database to your Teleport cluster.
  3. Connect to the Aurora database via the Teleport Database Service.

Teleport Database Access RDS Self-Hosted

Prerequisites

Supported versions

Teleport Database Access is available starting from the 6.0.0 Teleport release.

  • An AWS account with a PostgreSQL AWS Aurora database 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 >= 10.2.2.

    tctl version

    Teleport v10.2.2 go1.18

    tsh version

    Teleport v10.2.2 go1.18

    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 >= 10.2.2, which you can download by visiting the customer portal.

    tctl version

    Teleport v10.2.2 go1.18

    tsh version

    Teleport v10.2.2 go1.18

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

  • A registered domain name.

  • The tctl and tsh client tools version >= 10.1.9.

    You can download these from Teleport Cloud Downloads.

    tctl version

    Teleport v10.1.9 go1.18

    tsh version

    Teleport v10.1.9 go1.18

Step 1/3. Set up Aurora

In order to allow Teleport connections to an Aurora instance, the instance needs to support IAM authentication.

If you don't have a database provisioned yet, create an instance of an Aurora PostgreSQL in the RDS control panel. Make sure to choose the "Standard create" database creation method and enable "Password and IAM database authentication" in the Database Authentication dialog.

For existing Aurora instances, the status of IAM authentication is displayed on the Configuration tab and can be enabled by modifying the database instance.

Next, create the following IAM policy and attach it to the AWS user or service account. The Teleport Database Service will need to use the credentials of this AWS user or service account in order to use this policy.

{
   "Version": "2012-10-17",
   "Statement": [
      {
         "Effect": "Allow",
         "Action": [
             "rds-db:connect"
         ],
         "Resource": [
             "arn:aws:rds-db:<region>:<account-id>:dbuser:<resource-id>/*"
         ]
      }
   ]
}

This policy allows any database account to connect to the Aurora instance specified with resource ID using IAM auth.

Resource ID

The database resource ID is shown on the Configuration tab of a particular database instance in the RDS control panel, under "Resource id". For regular RDS database it starts with db- prefix. For Aurora, use the database cluster resource ID (cluster-), not the individual instance ID.

Finally, connect to the database and create a database account with IAM auth support (or update an existing one). Once connected, execute the following SQL statements to create a new database account and allow IAM auth for it:

CREATE USER alice;
GRANT rds_iam TO alice;

For more information about connecting to the PostgreSQL instance directly, see the AWS documentation.

Step 2/3. Set up Teleport

Start the Auth Service and Proxy Service

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

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.

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 10.2.2

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 10.1.9

CA pin sha256:sha-hash-here

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

Start the Teleport Database Service

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://apt.releases.teleport.dev/gpg \ -o /usr/share/keyrings/teleport-archive-keyring.asc

Source variables about OS version

source /etc/os-release

Add the Teleport APT repository for v10. You'll need to update this

file for each major release of Teleport.

Note: if using a fork of Debian or Ubuntu you may need to use '$ID_LIKE'

and the codename your distro was forked from instead of '$ID' and '$VERSION_CODENAME'.

Supported versions are listed here: https://github.com/gravitational/teleport/blob/master/build.assets/tooling/cmd/build-os-package-repos/runners.go#L42-L67

echo "deb [signed-by=/usr/share/keyrings/teleport-archive-keyring.asc] \ https://apt.releases.teleport.dev/${ID?} ${VERSION_CODENAME?} stable/v10" \| sudo tee /etc/apt/sources.list.d/teleport.list > /dev/null

sudo apt-get update
sudo apt-get install teleport

Source variables about OS version

source /etc/os-release

Add the Teleport YUM repository for v10. You'll need to update this

file for each major release of Teleport.

Note: if using a fork of RHEL/CentOS or Amazon Linux you may need to use '$ID_LIKE'

and the codename your distro was forked from instead of '$ID'

Supported versions are listed here: https://github.com/gravitational/teleport/blob/master/build.assets/tooling/cmd/build-os-package-repos/runners.go#L133-L153

sudo yum-config-manager --add-repo $(rpm --eval "https://yum.releases.teleport.dev/$ID/$VERSION_ID/Teleport/%{_arch}/stable/v10/teleport.repo")
sudo yum install teleport
curl https://get.gravitational.com/teleport-v10.2.2-linux-amd64-bin.tar.gz.sha256

<checksum> <filename>

curl -O https://get.gravitational.com/teleport-v10.2.2-linux-amd64-bin.tar.gz
shasum -a 256 teleport-v10.2.2-linux-amd64-bin.tar.gz

Verify that the checksums match

tar -xzf teleport-v10.2.2-linux-amd64-bin.tar.gz
cd teleport
sudo ./install
curl https://get.gravitational.com/teleport-v10.2.2-linux-arm-bin.tar.gz.sha256

<checksum> <filename>

curl -O https://get.gravitational.com/teleport-v10.2.2-linux-arm-bin.tar.gz
shasum -a 256 teleport-v10.2.2-linux-arm-bin.tar.gz

Verify that the checksums match

tar -xzf teleport-v10.2.2-linux-arm-bin.tar.gz
cd teleport
sudo ./install
curl https://get.gravitational.com/teleport-v10.2.2-linux-arm64-bin.tar.gz.sha256

<checksum> <filename>

curl -O https://get.gravitational.com/teleport-v10.2.2-linux-arm64-bin.tar.gz
shasum -a 256 teleport-v10.2.2-linux-arm64-bin.tar.gz

Verify that the checksums match

tar -xzf teleport-v10.2.2-linux-arm64-bin.tar.gz
cd teleport
sudo ./install

Using this APT repo may result in breaking upgrades upon "apt upgrade" as all major versions will be

published under the same component. We recommend following the instructions in the

"Debian/Ubuntu (DEB)" tab instead.

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

On the node where you will run the Teleport Database Service, start Teleport and point it to your Aurora database instance. Make sure to update the database endpoint and region appropriately. The --auth-server flag must point to the address of your Teleport Proxy Service.

teleport db start \ --token=/tmp/token \ --db-name=aurora \ --auth-server=teleport.example.com:3080 \ --db-protocol=postgres \ --db-uri=postgres-aurora-instance-1.abcdefghijklm.us-west-1.rds.amazonaws.com:5432 \ --db-aws-region=us-west-1
AWS Credentials

The node that connects to the database should have AWS credentials configured with the policy from step 1.

Create a user and role

Create the role that will allow a user to connect to any database using any database account:

tctl create <<EOFkind: roleversion: v3metadata: name: dbspec: allow: db_labels: '*': '*' db_names: - '*' db_users: - '*'EOF

Create the Teleport user assigned the db role we've just created:

tctl users add --roles=access,db alice

Step 3/3. Connect

Now that Aurora is configured with IAM authentication, Teleport is running, and the local user is created, we're ready to connect to the database.

Log in to Teleport with the user we've just created.

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

Now we can inspect available databases:

tsh db ls

Finally, connect to the database:

tsh db connect --db-user=alice --db-name postgres aurora

Troubleshooting

Certificate error

If your tsh db connect error includes the following text, you likely have an RDS database created before July 28, 2020, which presents an X.509 certificate that is incompatible with Teleport:

x509: certificate relies on legacy Common Name field, use SANs instead

AWS provides instructions to rotate your SSL/TLS certificate.

No credential providers error

If you see the error NoCredentialProviders: no valid providers in chain in Database Service logs then Teleport is not detecting the required credentials to connect via AWS IAM permissions. Check whether the credentials or security role has been applied in the machine running the Teleport Database Service.

Timeout errors

The Teleport Database Service needs connectivity to your database endpoints. That may require enabling inbound traffic on the database from the Database Service on the same VPC or routing rules from another VPC. Using the nc program you can verify connections to databases:

nc -zv postgres-instance-1.sadas.us-east-1.rds.amazonaws.com 5432

Connection to postgres-instance-1.sadas.us-east-1.rds.amazonaws.com (172.31.24.172) 5432 port [tcp/postgresql] succeeded!

Next Steps

For the next steps, dive deeper into the topics relevant to your Database Access use-case, for example: