How to run a database in Docker?

2 years ago
Sophia Anderson
2 minutes

To run a database in Docker, you can follow these steps:

  1. To install Docker: First, make sure Docker is already installed. You can verify the installation by running the command docker -v in the terminal.
  2. Search for database images: Look for the database image you need on Docker Hub (https://hub.docker.com). For example, if you want to run MySQL database in Docker, search for mysql.
  3. Download a database mirror: Download your selected database mirror by running the docker pull command. For example, the command to download the MySQL mirror is docker pull mysql.
  4. To run a database container, use the docker run command to create and start the container. Before running the container, you will need to set some environment variables and port mappings to access the database on the host. For example, the command to run a MySQL container could be:
docker run --name mysql-container -e MYSQL_ROOT_PASSWORD=password -p 3306:3306 -d mysql

The –name parameter specifies the container name, the -e parameter sets environment variables (for example, here the root password for MySQL is set), the -p parameter maps ports (maps the host’s 3306 port to the container’s 3306 port), and the -d parameter indicates running the container in the background.

  1. Connect to the database: Use a database client tool (like MySQL Workbench) to connect to the database running in Docker. When connecting, you can use the host’s IP address and the mapped port number.

This way, you can successfully run a database in Docker. You can also follow similar steps to run other databases, simply by changing the image name and setting the appropriate environment variables and port mappings.

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