Docker and AWS EC2
This process shows how to deploy MariaDB in a Docker container running on an EC2 instance. First we'll create the EC2 VM, then we'll deploy Docker to it. After that, we'll pull the MariaDB Docker image which we'll use to create a running container with a MariaDB instance. Finally, we'll load a sample database into the MariaDB instance.
1. Install MariaDB client on your local machine, either bundled with Maria DB server or standalone.
2. Login to AWS, navigate to EC2 service home
3. Choose Region for EC2 in the upper right corner of the console
4. Launch (1) Instance, giving instance a name (e.g. mrdb-ubuntu-docker-use1) and create or re-use a key pair
5. Choose Ubuntu 22.04 or similar free tier instance
6. Choose hardware, t2.micro or similar free tier instance
7. Create Key Pair with name (e.g. mrdb-docker-aws-pk.pem if using openSSH at the command line, or mrdb- docker-aws-pk..ppk for use with programs like PuTTY.)
9. Create or select a security group where SSH is allowed from anywhere 0.0.0.0/0. If you’d like to make this more secure, it can be restricted to a specific IP address or CIDR block.
10. Accept remaining instance creation defaults and click “launch instance”.
11. Save the *.pem or *.ppk keyfile on your local hard drive when prompted. You will need it later. If you’re on Linux, don’t forget to change permissions on the downloaded *.pem / *.ppk key file: $ chmod 400 mrdb-docker-pk.pem
12. Click into the instance summary (EC2 > Instances > Instance ID) and click on the “security” tab towards the bottom.
13. In the relevant security group for your instance, Create an inbound rule so that TCP port 3306 is open, allowing external connections to Maria DB (like your local command line client for MariaDB). Double check that port 22 is open while you're there for SSH.
Install Docker on the EC2 VM
For more detailed instructions, refer to Installing and Using MariaDB via Docker
14. Back in the instance summary (EC2 > Instances > Instance ID), copy the public IP (e.g. ww.xx.yyy.zzz)
15. Open terminal window, navigate to the directory with private key (*.pem or *.ppk) file and start a SSH remote shell session by typing:
$ ssh -i mrdb-docker-pk.pem [email protected]
(switch ww.xx.yyy.zzz for your IP address from step 14).
16. Are you sure you want to continue connecting (yes/no/[fingerprint])? Say yes
17. Escalate to root
$ sudo su
18. Install Docker
$ curl -fsSL https://get.docker.com | sudo sh
Pull the MariaDB Docker image and create the container
19. Pull MariaDB Docker image
$ docker pull mariadb:lts
20. Start MDRB docker process
at your terminal / command line, type:
$ docker run --detach --name mariadb-docker -v \Users\YouUID\Documents\YourDirName:/var/lib/mysql:Z -p 3306:3306 -e MARIADB_ROOT_PASSWORD=yoursecurepassword mariadb:lts
The -v flag mounts a directory that you choose as /var/lib/mysql will ensure that the volume is persistent. Windows file paths like C:\Users\YouUID\Documents\YourDirName should be represented as above. Linux file paths should also be absolute vs. relative. Obviously replace the root password with something that a bit more secure than you see in this example for anything other than development purposes.
21. Shell into container
$ docker exec -it mariadb-docker bash
22. Login to MRDB inside container
Using the root password specified in step 20, type:
$ mariadb -pyoursecurepassword
23. Setup admin account with permission for remote connection, configure access control
MariaDB [(none)]> CREATE USER 'admin'@'%' IDENTIFIED BY 'admin';
MariaDB [(none)]> GRANT ALL ON *.* to 'admin'@'%' WITH GRANT OPTION;
MariaDB [(none)]> SHOW GRANTS FOR admin;
Obviously replace these passwords with something that a bit more secure than you see in this example for anything other than development purposes.
24. Setup service account for your app with permission for remote connection, configure access control
MariaDB [(none)]> CREATE USER 'yourappname'@'%' IDENTIFIED BY 'yoursecurepassword';
MariaDB [(none)]> GRANT INSERT, UPDATE, DELETE ON *.* to 'yourappname'@'%';
MariaDB [(none)]> SHOW GRANTS FOR yourappname;
Obviously replace these passwords with something that a bit more secure than you see in this example for anything other than development purposes.
25. Load up your database from preexisting SQL script that contains CREATE DATABASE [name]; and USE DATABASE name]; statements.
In a new local terminal window, not your SSH session, change directory to the directory containing your database creation script, say, init.sql in this example. Type:
$ mariadb --host=ww.xx.yyy.zzz --port=3306 --user=admin --password=admin -e “SOURCE init.sql”
(switch ww.xx.yyy.zzz for your IP address from step 14).