Added Oracle FREE DB

[liborfuka]

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[OndrejGerzicak]

I don't get purpose of this OracleFREE builder? There is already OracleXE builder. The only difference I can see between those two is the default DB_NAME, but that should be possible to set with a parameter in constructor. If the constructor isn't enough for you feel free to add another that suits you, but I don't think it necessary to create a new class in this case. Am I missing something?

[liborfuka]

There are two differences - DATA_DIR and DB_NAME. Yes It should be solved by adding new constructor but there are two different products:
Oracle Database Express Edition (our class OracleXE)
Oracle Database Free

Ok, how to finally solve it?
Create new constructor in OracleXE class?

[OndrejGerzicak]

Ok missed the DATA_DIR, sorry for that. As it's two different product maybe you are right that there should be separate classes. But to avoid the code duplicity, you could create some base Oracle DB class and inherit the common code for the product explicit classes from there?

[liborfuka]

Ok, I will create AbstractOracle class.

[liborfuka]

I added OracleAbstract class. DATA_DIR /opt/oracle/oradata is the same in the latest Oracle DB images: container-registry.oracle.com/database/express:latest and container-registry.oracle.com/database/free:latest

[OndrejGerzicak]

LGTM! Thank you

[mnovak]

LGTM, merging.

[mnovak]

I've found that changing DATA_DIR to /opt/oracle/oradata starting of Oracle takes significatly longer (from seconds to 10+ minutes). I'll return it back to /var/lib/oracle/data. @liborfuka could you check what this change will do with Oracle FREE DB?

[liborfuka]

Hi @mnovak1

Oracle data files are stored in /opt/oracle/oradata in Oracle DB images. If you change it to something else it starts faster but you can not test with physical volume claims and you can not test these test scenarios.