Update the CA certificate version for your Lightsail database - Amazon Lightsail
PrerequisitesIdentify the active CA certificate for your managed databaseModify your managed database to use the new CA certificateModify your managed database to use the old CA certificate

Update the CA certificate version for your Lightsail database

Amazon Lightsail has published new Certificate Authority (CA) certificates for connecting to your managed database using SSL/TLS. This guide describes how to upgrade to the new CA certificate. You can upgrade the certificate only by using the update-relational-database API action. The new certificates are referred to as rds-ca-rsa2048-g1, rds-ca-rsa4096-g1, and rds-ca-ecc384-g1. The old certificate is referred to as rds-ca-2019. We provide the CA certificates as an AWS security best practice. For information about the CA certificates for your managed database, and the supported AWS Regions, see Downloading an SSL certificate for your managed database.

The old CA certificate (rds-ca-2019) expires on August 22, 2024. Therefore, we strongly recommend completing the steps in this guide as soon as possible to modify your managed database to use the new certificate. If your applications do not connect to your Lightsail managed database using SSL/TLS, no action is required. If these steps are not completed, your applications will fail to connect to your managed database using SSL/TLS after August 22, 2024.

New managed databases created after January 26, 2024 will use the rds-ca-rsa2048-g1 certificate by default. If you want to temporarily modify new managed databases to use the old certificate (rds-ca-2019), you can do so using the AWS Command Line Interface (AWS CLI). Any managed databases created prior to January 26, 2024 uses the rds-ca-2019 certificate until you update them to the rds-ca-rsa2048-g1, rds-ca-rsa4096-g1, and rds-ca-ecc384-g1 certificates.

Note

Test the steps in this guide on a development or staging environment before using them on your production environments.

Prerequisites

  • In this guide, you will use AWS CloudShell to perform the upgrade. CloudShell is a browser-based, pre-authenticated shell that you can launch directly from the Lightsail console. With CloudShell, you can run AWS Command Line Interface (AWS CLI) commands using your preferred shell, such as Bash, PowerShell, or Z shell. You can do this without downloading or installing command line tools. For more information about how to set up and use CloudShell, see AWS CloudShell in Lightsail.

  • Before completing the following steps, make sure to update your database applications to use the new SSL/TLS certificate. The methods for updating applications for new SSL/TLS certificates depend on your specific applications. Work with your application developers to update the SSL/TLS certificates for your applications. To learn more about updating applications for new SSL/TLS certificates, see Updating Applications to Connect to MySQL DB Instances Using New SSL/TLS Certificates or Updating Applications to Connect to PostgreSQL DB Instances Using New SSL/TLS Certificates in the Amazon Relational Database Service User Guide.

Identify the active CA certificate for your managed database

Complete the following steps to identify the active CA certificate for your Lightsail database instance.

  1. Open a Terminal, AWS CloudShell, or Command Prompt window.

  2. Enter the following command to identify the active CA certificate for your managed database.

    aws lightsail get-relational-database --relational-database-name DatabaseName --region DatabaseRegion | grep "caCertificateIdentifier"

    In the command, replace DatabaseName with the name of the database you want to modify, and DatabaseRegion with the AWS Region that the database instance is in.

    Example

    aws lightsail get-relational-database --relational-database-name Database-1 --region us-east-1 | grep "caCertificateIdentifier"

    The command will return the ID of the active CA certificate for your database.

    Example

    "caCertificateIdentifier": "rds-ca-rsa2048-g1"

Modify your managed database to use the new CA certificate

Complete the following steps to modify your managed database in Lightsail to use one of the new CA certificates (rds-ca-rsa2048-g1, rds-ca-rsa4096-g1, and rds-ca-ecc384-g1).

  1. Open a Terminal, AWS CloudShell, or Command Prompt window.

  2. Enter the following command to use the new certificate on your managed database.

    aws lightsail update-relational-database --relational-database-name DatabaseName --ca-certificate-identifier rds-ca-rsa2048-g1

    In the command, replace DatabaseName with the name of the database you want to modify.

    Example

    aws lightsail update-relational-database --relational-database-name Database-1 --ca-certificate-identifier rds-ca-rsa2048-g1

    The CA certificate used by your managed database will be updated during your database’s next maintenance window, or immediately if you add the --apply-immediately parameter to the end of the command.

Modify your managed database to use the old CA certificate

Complete the following steps to modify your managed database in Lightsail to use the old CA certificate (rds-ca-2019). Do this only if you experience a critical issue with one of the new certificates (rds-ca-rsa2048-g1, rds-ca-rsa4096-g1, and rds-ca-ecc384-g1) and need to temporarily revert the old one.

  1. Open a Terminal, AWS CloudShell, or Command Prompt window.

  2. Enter the following command to use the rds-ca-2019 on your managed database.

    aws lightsail update-relational-database --relational-database-name DatabaseName --ca-certificate-identifier rds-ca-2019

    In the command, replace DatabaseName with the name of the database you want to modify.

    Example

    aws lightsail update-relational-database --relational-database-name Database-1 --ca-certificate-identifier rds-ca-2019

    The CA certificate used by your managed database will be updated during your database’s next maintenance window, or immediately if you add the --apply-immediately parameter to the end of the command.