Software⏱️ 2 min read📅 2026-05-31
How to Fix: MYSQL_ROOT_PASSWORD is set but getting "Access denied for user 'root'@'localhost' (using password: YES)" in docker container
MySQL root password not being recognized in Docker container.
Quick Answer: The issue is likely due to the MySQL root user not being created during the image build process. You can try adding a `RUN` command to create the root user and grant it all privileges.
📋 Table of Contents
To resolve the issue of 'Access denied for user 'root'@'localhost' (using password: YES)" in Docker container, you need to update the MySQL root user's privileges.
⚠️ Common Causes
- Incorrect or missing MYSQL_ROOT_PASSWORD environment variable in the Docker container.
🛠️ Step-by-Step Verified Fixes
Method 1: Update MYSQL_ROOT_PASSWORD Environment Variable
- Step 1: Run the command `docker-compose exec db mysql -uroot -p${MYSQL_ROOT_PASSWORD}` to verify if the password is correct.
Method 2: Grant All Privileges to MySQL Root User
- Step 1: Run the command `docker-compose exec db mysql -uroot -p${MYSQL_ROOT_PASSWORD} --execute=
❓ Frequently Asked Questions
Incorrect or missing MYSQL_ROOT_PASSWORD environment variable in the Docker container.
Step 1: Run the command `docker-compose exec db mysql -uroot -p${MYSQL_ROOT_PASSWORD}` to verify if the password is correct.
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