Migrating from MySQL to PostgreSQL and then to AWS RDS with Multi-AZ Configuration Using Terraform

Everton Araújo

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3 min read

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Mar 31, 2024

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Migrating from MySQL to PostgreSQL, and subsequently to AWS RDS with a Multi-AZ setup, can be a complex process, but it is quite manageable with careful planning. I’ll guide you through the basic steps and how to use Terraform to automate part of the process. Additionally, I’ll explain how to set up automatic backup schedules.

Step 1: Migrate from MySQL to PostgreSQL

1. Assessment: Before starting the migration, assess your MySQL tables to ensure compatibility. Tools like the AWS Schema Conversion Tool can help identify potential compatibility issues.
2. MySQL Data Export: Export your data from MySQL using mysqldump or similar tools.

mysqldump -u [username] -p[password] [database_name] > database_name.sql

1. Data Conversion: Convert the MySQL dump to a PostgreSQL-compatible format. You can use tools like pgloader for this task.
2. Import to PostgreSQL: Import the converted file into your PostgreSQL database.

psql -U [username] -d [database_name] -f database_name.sql

Step 2: Migrate to AWS RDS Using Terraform