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Database Access with Redis

Version 11.x
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Database access for Redis is available starting from Teleport 9.0.

If you want to configure Redis Cluster, please read Database Access with Redis Cluster.

This guide will help you to:

  • Install and configure Teleport.
  • Configure mutual TLS authentication between Teleport and Redis.
  • Connect to Redis through Teleport.

Teleport Database Access Redis Self-Hosted

Prerequisites

  • Redis version 6.0 or newer.

  • redis-cli version 6.2 or newer installed and added to your system's PATH environment variable.

  • A host where you will run the Teleport Database Service. Teleport version 9.0 or newer must be installed.

    See Installation for details.

  • The tctl and tsh client tools version >= 11.3.2.

    tctl version
    Teleport v11.3.2 go1.19
    tsh version
    Teleport v11.3.2 go1.19

    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 >= 11.3.2, which you can download by visiting the customer portal.

    tctl version
    Teleport v11.3.2 go1.19
    tsh version
    Teleport v11.3.2 go1.19

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

  • A registered domain name.

  • The tctl and tsh client tools version >= 11.2.1.

    You can download these from Teleport Cloud Downloads.

    tctl version
    Teleport v11.2.1 go1.19
    tsh version
    Teleport v11.2.1 go1.19
Note

Redis 7.0 and RESP3 (REdis Serialization Protocol) are currently not supported.

Step 1/5. Install and configure Teleport

Set up the Teleport Auth and Proxy Services

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  11.3.2
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  11.2.1
CA pin   sha256:sha-hash-here

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

Set up 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:

Next, use the appropriate commands for your environment to install your package.

Teleport Edition

Open Source

Add the Teleport repository to your repository list:

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 v11. 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?} ${VERSION_CODENAME?} stable/v11" \| sudo tee /etc/apt/sources.list.d/teleport.list > /dev/null
sudo apt-get update
sudo apt-get install teleport
Source variables about OS version
source /etc/os-release
Add the Teleport YUM repository for v11. You'll need to update this
file for each major release of Teleport.
Note: if using a fork of RHEL/CentOS or Amazon Linux you may need to use '$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/v11/teleport.repo")
sudo yum install teleport
Tip: Add /usr/local/bin to path used by sudo (so 'sudo tctl users add' will work as per the docs)
echo "Defaults    secure_path = /sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin" > /etc/sudoers.d/secure_path
Optional:  Use DNF on newer distributions
$ sudo dnf config-manager --add-repo https://rpm.releases.teleport.dev/teleport.repo
$ sudo dnf install teleport

In the example commands below, update $SYSTEM-ARCH with the appropriate value (amd64, arm64, or arm). All example commands using this variable will update after one is filled out.

curl https://get.gravitational.com/teleport-v11.3.2-linux-
-bin.tar.gz.sha256
<checksum> <filename>
curl -O https://cdn.teleport.dev/teleport-v11.3.2-linux-
-bin.tar.gz
shasum -a 256 teleport-v11.3.2-linux-
-bin.tar.gz
Verify that the checksums match
tar -xvf teleport-v11.3.2-linux-
-bin.tar.gz
cd teleport
sudo ./install

In the example commands below, update $SYSTEM-ARCH with the appropriate value (amd64, arm64, or arm). All example commands using this variable will update after one is filled out.

After Downloading the .deb file for your system architecture, install it with dpkg. The example below assumes the root user:

dpkg -i ~/Downloads/teleport-ent_11.3.2_
.deb
Selecting previously unselected package teleport-ent.
(Reading database ... 30810 files and directories currently installed.)
Preparing to unpack teleport-ent_11.3.2_$SYSTEM_ARCH.deb ...
Unpacking teleport-ent 11.3.2 ...
Setting up teleport-ent 11.3.2 ...

After Downloading the .rpm file for your system architecture, install it with rpm:

rpm -i ~/Downloads/teleport-ent-11.3.2.
.rpm
warning: teleport-ent-11.3.2.$SYSTEM-ARCH.rpm: Header V4 RSA/SHA512 Signature, key ID 6282c411: NOKEY
curl https://get.gravitational.com/teleport-ent-v11.3.2-linux-
-bin.tar.gz.sha256
<checksum> <filename>
curl -O https://cdn.teleport.dev/teleport-ent-v11.3.2-linux-
-bin.tar.gz
shasum -a 256 teleport-ent-v11.3.2-linux-
-bin.tar.gz
Verify that the checksums match
tar -xvf teleport-ent-v11.3.2-linux-
-bin.tar.gz
cd teleport-ent
sudo ./install

For FedRAMP/FIPS-compliant installations of Teleport Enterprise, package URLs will be slightly different:

curl https://get.gravitational.com/teleport-ent-v11.3.2-linux-
-fips-bin.tar.gz.sha256
<checksum> <filename>
curl -O https://cdn.teleport.dev/teleport-ent-v11.3.2-linux-
-fips-bin.tar.gz
shasum -a 256 teleport-ent-v11.3.2-linux-
-fips-bin.tar.gz
Verify that the checksums match
tar -xvf teleport-ent-v11.3.2-linux-
-fips-bin.tar.gz
cd teleport-ent
sudo ./install

In the example commands below, update $SYSTEM-ARCH with the appropriate value (amd64, arm64, or arm). All example commands using this variable will update after one is filled out.

After Downloading the .deb file for your system architecture, install it with dpkg. The example below assumes the root user:

dpkg -i ~/Downloads/teleport-ent_11.2.1_
.deb
Selecting previously unselected package teleport-ent.
(Reading database ... 30810 files and directories currently installed.)
Preparing to unpack teleport-ent_11.2.1_$SYSTEM_ARCH.deb ...
Unpacking teleport-ent 11.2.1 ...
Setting up teleport-ent 11.2.1 ...

After Downloading the .rpm file for your system architecture, install it with rpm:

rpm -i ~/Downloads/teleport-ent-11.2.1.
.rpm
warning: teleport-ent-11.2.1.$SYSTEM-ARCH.rpm: Header V4 RSA/SHA512 Signature, key ID 6282c411: NOKEY
curl https://get.gravitational.com/teleport-ent-v11.2.1-linux-
-bin.tar.gz.sha256
<checksum> <filename>
curl -O https://cdn.teleport.dev/teleport-ent-v11.2.1-linux-amd64-bin.tar.gz
shasum -a 256 teleport-ent-v11.2.1-linux-amd64-bin.tar.gz
Verify that the checksums match
tar -xvf teleport-ent-v11.2.1-linux-amd64-bin.tar.gz
cd teleport-ent
sudo ./install

Before installing a teleport binary with a version besides v11, read our compatibility rules to ensure that the binary is compatible with Teleport Cloud.

When running multiple teleport binaries within a cluster, the following rules apply:

  • Patch and minor versions are always compatible, for example, any 8.0.1 component will work with any 8.0.3 component and any 8.1.0 component will work with any 8.3.0 component.
  • Servers support clients that are 1 major version behind, but do not support clients that are on a newer major version. For example, an 8.x.x Proxy Service is compatible with 7.x.x resource services and 7.x.x tsh, but we don't guarantee that a 9.x.x resource service will work with an 8.x.x Proxy Service. This also means you must not attempt to upgrade from 6.x.x straight to 8.x.x. You must upgrade to 7.x.x first.
  • Proxy Services and resource services do not support Auth Services that are on an older major version, and will fail to connect to older Auth Services by default. This behavior can be overridden by passing --skip-version-check when starting Proxy Services and resource services.

Start the Teleport Database Service, pointing the --auth-server flag to the address of your Teleport Proxy Service:

teleport db start \  --token=/tmp/token \  --auth-server=teleport.example.com:3080 \  --name=example-redis \  --protocol=redis \  --uri=rediss://redis.example.com:6379 \  --labels=env=dev
Note

The --auth-server flag must point to the Teleport cluster's Proxy Service endpoint because the Database Service always connects back to the cluster over a reverse tunnel.

Tip

You can start the Database Service using a configuration file instead of CLI flags. See the YAML reference for details.

Step 2/5. Create a Teleport user

Tip

To modify an existing user to provide access to the Database Access service, see Database Access Access Controls

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 3/5. Create Redis users

Each Redis user must be protected by a strong password. We recommend using OpenSSL to generate passwords:

openssl rand -hex 32
Note

If you have access to Redis you can also generate a password by using the below command from the Redis console:

ACL GENPASS

Create a users.acl file, which defines users for your Redis deployment, passwords required to log in as a given user, and sets of ACL rules. Redis allows you to provide passwords in plaintext or an SHA256 hash. We strongly recommend using an SHA256 hash instead of plaintext passwords.

You can use the command below to generate an SHA256 hash from a password.

echo -n STRONG_GENERATED_PASSWORD | sha256sum

user alice on #57639ed88a85996453555f22f5aa4147b4c9614056585d931e5d976f610651e9 allcommands allkeys
user default off

For more ACL examples refer to the Redis documentation.

Warning

It's very important to either disable or protect with a password the default user. Otherwise, everyone with access to the database can log in as the default user, which by default has administrator privileges.

Step 4/5. Set up mutual TLS

Teleport uses mutual TLS authentication with self-hosted databases. These databases must be configured with Teleport's certificate authority to be able to verify client certificates. They also need a certificate/key pair that Teleport can verify.

We will show you how to use tctl auth sign below.

When connecting to standalone Redis, sign the certificate for the hostname over which Teleport will be connecting to it.

For example, if your Redis server is accessible at redis.example.com, run:

tctl auth sign --format=redis --host=redis.example.com --out=server --ttl=2190h
TTL

We recommend using a shorter TTL, but keep mind that you'll need to update the database server certificate before it expires to not lose the ability to connect. Pick the TTL value that best fits your use-case.

The command will create three files:

  • server.cas with Teleport's certificate authority
  • server.key with a generated private key
  • server.crt with a generated user certificate

You will need these files to enable mutual TLS on your Redis server.

Certificate Rotation

Teleport 10.0 introduced a new certificate authority that is only used by Database Access. Older Teleport versions use a host certificate to sign Database Access certificates.

After upgrading to Teleport 10.0, the host certificate authority will still be used by Database Access to maintain compatibility. The first certificate rotation will rotate host and database certificates.

New Teleport 10.0+ installations generate the database certificate authority when they first start, and are not affected by the rotation procedure described above.

Use the generated secrets to enable mutual TLS in your redis.conf configuration file and restart the database:

tls-port 6379
port 0
aclfile /path/to/users.acl
tls-ca-cert-file /path/to/server.cas
tls-cert-file /path/to/server.crt
tls-key-file /path/to/server.key
tls-protocols "TLSv1.2 TLSv1.3"

Once mutual TLS has been enabled, you will no longer be able to connect to the cluster without providing a valid client certificate. You can use the tls-auth-clients optional setting to allow connections from clients that do not present a certificate.

See TLS Support in the Redis documentation for more details.

Step 5/5. Connect

Log into your Teleport cluster and see available databases:

tsh login --proxy=teleport.example.com --user=alice
tsh db ls
Name          Description     Labels
------------- --------------- --------
example-redis Example Redis   env=dev
tsh login --proxy=mytenant.teleport.sh --user=alice
tsh db ls
Name          Description     Labels
------------- --------------- --------
example-redis Example Redis   env=dev

To connect to a particular database instance:

tsh db connect example-redis

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

tsh db connect --db-user=alice example-redis

If flag --db-user is not provided, Teleport logs in as the default user.

Now you can log in as the previously created user using the below command:

AUTH alice STRONG_GENERATED_PASSWORD

To log out of the database and remove credentials:

Remove credentials for a particular database instance.
tsh db logout example-redis
Remove credentials for all database instances.
tsh db logout

Supported Redis commands

Redis in standalone mode doesn't support the commands below. If one of the listed commands is called Teleport returns the ERR Teleport: not supported by Teleport error.

  • HELLO
  • PUNSUBSCRIBE
  • SSUBSCRIBE
  • SUNSUBSCRIBE

Next steps

  • Take a look at the YAML configuration reference.
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