Are you tired of manually monitoring your local databases? Do you want an easy and quick solution to monitor your Dockerized databases? In this article, we will guide you through the process of setting up Percona Monitoring and Management (PMM) with to monitor your local Dockerized databases. Docker First things first, we need to create a Docker network for monitoring: docker network create monitorization_pmm_local Next, we will define a minimal file to start the PMM service: Docker Compose version: '3.7' services: pmm-server: image: percona/pmm-server:2 hostname: pmm-server container_name: pmm-server restart: always logging: driver: json-file options: max-size: "10m" max-file: "5" ports: - "443:443" Start the PMM service with the following command: docker-compose up -d Once the PMM container is up and running, we can access the PMM web-admin interface by visiting . The initial credentials are / , and you will be prompted to change the password upon the first login. For this example, we will keep the password unchanged. https://localhost:443/graph admin admin Connect the PMM container to the network: monitorization_pmm_local docker network connect monitorization_pmm_local pmm-server Now it's time to set up monitoring for our Dockerized databases. Let's try with MySQL: version: "3.7" services: mysql: container_name: mysql-playground image: mysql:latest command: --default-authentication-plugin=mysql_native_password ports: - 3306:3306 environment: MYSQL_DATABASE: playground MYSQL_ROOT_USER: root MYSQL_ROOT_PASSWORD: root MYSQL_USER: test MYSQL_PASSWORD: test Connect the MySQL container to the network: monitorization_pmm_local docker network connect monitorization_pmm_local mysql-playground Identify the IP address of the container within the Docker network: MySQL docker network inspect monitorization_pmm_local In this example, we will assume that the IP address of the MySQL container is and the IP address of the PMM container is . 192.168.240.3 192.168.240.2 Create a user for PMM to use to monitor the MySQL container: docker exec -it mysql-playground mysql -uroot -proot mysql> CREATE USER 'pmm'@'192.168.240.2' IDENTIFIED BY 'pmmpassword' WITH MAX_USER_CONNECTIONS 10; mysql> GRANT ALL PRIVILEGES ON *.* TO 'pmm'@'192.168.240.2' WITH GRANT OPTION; Note that we are creating a user with the name and granting it all privileges on all databases. You can check the user's privileges with the following command: pmm mysql> show grants for 'pmm'@'192.168.240.2'; +-----------------------------------------------------------------------------------+ | Grants for pmm@192.168.240.2 | +-----------------------------------------------------------------------------------+ | GRANT SELECT, RELOAD, PROCESS, REPLICATION CLIENT ON *.* TO `pmm`@`192.168.240.2` | | GRANT BACKUP_ADMIN ON *.* TO `pmm`@`192.168.240.2` | +-----------------------------------------------------------------------------------+ 2 rows in set (0.00 sec) Finally, register the MySQL container with PMM using the following command: docker exec -i pmm-server pmm-admin add mysql --username=pmm --password=pmmpassword --query-source=perfschema --server-url=https://admin:admin@127.0.0.1:443 --server-insecure-tls --host 192.168.240.3 --port 3306 --service-name mysql-playground-pmm And that's it! You can now monitor your Dockerized MySQL container using PMM, and adapt this process for any other Dockerized databases you want to monitor like PostgreSQL or MongoDB. In conclusion, with just a few commands, we were able to set up PMM with Docker to monitor our local databases. This is a quick and easy solution for anyone who wants to monitor their Dockerized databases.
