feat: Bundle a MySQL driver

[nhrrsn]

Add the mysql driver as a dependency.
As discusse in issue: #337
Based on previouse work to add the Postgres driver: #307

[CLAassistant]

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[saig0]

@ian4h thank you for your contribution. 🎉 I'll have a look at your PR in the next few days. 👀

[nhrrsn]

Hi @saig0 ok thanks no rush.
Actually I've noticed an issue with the changes to use MYSQL so I'll ask for some feedback from you before making any changes.
MYSQL defaults to a lower case table naming strategy. So when the repository goes to use a nativeQuery (for example in the ProcessRepository getElementInstanceStatisticsByKeyAndIntentIn() method) and it uses the upper case table names, then the query fails.
The solution to this is add the following environment variable:
- spring.jpa.hibernate.naming.physical-strategy=org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl
I've tested this and it works as expected.
I was going to just add some additional info to the README to document this solution for MYSQL databases. Is this ok with you or would you rather another solution?
Thanks

[saig0]

I was going to just add some additional info to the README to document this solution for MYSQL databases. Is this ok with you or would you rather another solution?

Sounds fine to me. 👍

Thank you for coming up with the solution immediately.

[saig0]

@ian4h it would be nice to add a new profile for MySQL to the docker-compose file. It would make the testing a lot easier.

[nhrrsn]

HI @saig0 ok that makes sense. I've added a new profile to the docker compose file.
I've also added an example MySql configuration to the README.

In order to test the docker-compose was working I built the docker image locally and changed the image for the simple-monitor-mysql container to point at my local version instead.

[saig0]

@ian4h looks all good. Your PR is ready to merge. 🎉