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How to use Redli to Securely Connect to a Vultr Managed Database for Caching

RedliCachingManaged Databases
CK
Updated on June 21, 2024
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Introduction

Redli is an open-source Go-based tool that makes TLS/SSL connections to remote Redis® Databases. Since the Redis® command line tool (redis-cli) does not support TLS/SSL connections natively, Redli serves as the best alternative to the tool with direct TLS support. This article describes how you can use the Redli tool to securely connect to a Vultr Managed Database for Caching.

Prerequisites

Install Redli

  1. For easy accessibility, create a new Redli directory.

      $ mkdir Redli

  2. Switch to the directory.

      $ cd Redli

  3. Using the wget utility, download the latest Redli release file from the project’s GitHub Repository. For this article, v0.7.0 is the latest version.

      $ wget https://github.com/IBM-Cloud/redli/releases/download/v0.7.0/redli_0.7.0_linux_amd64.tar.gz

  4. Extract files from the downloaded tarball.

      $ tar xvf redli_0.7.0_linux_amd64.tar.gz

  5. List the extracted files and verify that a new redli directory is available.

      $ ls

    Output:

      LICENSE.txt
  README.md
  redli

Configure Redli as a System-wide Command

  1. Move the redli binary file to the /usr/local/bin directory where the system looks for standard user executable files.

      $ sudo mv redli /usr/local/bin/

  2. Switch to your user home directory.

      $ cd ~/

  3. Run the redli command to verify that you can access the application.

      $ redli --version

    Output:

      0.5.2

Connect to a Vultr Managed Database for Caching

When connecting to remote Redis® databases, Redli uses the command syntax below:

     $ redli --tls -h <redis-host> -p <port> -a <password>
  • --tls: Activates TLS/SSL connectivity.
  • -h: The remote Redis® database host.
  • -p: Redis® Port to connect to.
  • -a: Redis® database password to authenticate with the server.

The rediss: scheme:

     $ redli -u rediss://user:password@host:port

The -u flag specifies that the connection points to a URI address. You can find your direct Rediss URI in the Vultr Managed Database for Caching control panel.

  1. To connect to your Vultr managed database for Caching, run any of the following commands.

      $ redli --tls -h redis.vultrdb.com -p 1234 -a password

    OR

      $ redli --tls -u rediss://user:password@redis.vultrdb.com:1234

    Replace redis.vultrdb.com, 1234, and password with the actual Vultr Managed Database for Caching details displayed in your control panel respectively.

  2. Enter PING to verify that you're connected to the database.

      > PING

    Output:

      PONG

  3. Start managing your Redis® database. To close the session, run the following command.

      > exit

Next Steps

In this article, you have used the Redli tool to connect to a Vultr Managed Database for Caching. With a secure connection to your database, you can start managing and safely cutover applications as explained in the following articles.