Great work learning, keep up the good work
@Siamak !
As a DBA, I don't really have much experience with Docker or any other container orchestration platforms.
In my experience, databases are inherently stateful, whereas containerized environments are optimized for stateless workloads. It is very rare to containerize Oracle databases in Production environments.
In the realm of DevOps, many organizations view automation as a silver bullet but seriously underestimate the investment required to make it truly effective.
Too many developers suffer from "Resume driven development" where they hop on the latest trend to pad their CVs, rather than addressing actual business needs.
I appreciate tools like Ansible and Terraform - they are very powerful. BUT, they also introduce complexity, require ongoing maintenance, and demand expertise to use effectively. For companies that add only a few hosts each year, the cost-benefit of such tools doesn't justify their use.
Call me old school, but I miss the days when preparing a new server meant doing things the proper way, installing the packages the host needed and nothing more, installing and configuring services following the KB and monitoring it in the proper way. A clean and a well done install for hosts that should work for at least 10 years.
Keep in mind most companies don't require crazy levels of scalability. It isn't sexy to admit, but 95% of services are fine with a simple 2 node HA configuration that can be easily achieved with 20 year old technology.
Most companies in the world don't need to replicate a system or a service an endless amount of times. Most need 2-3 copies for a Development, Test, and UAT environment - not a thousand.
Most companies in the world don't really require fancy orchestration tools because they usually need max 10 new hosts a year. At this point, those companies should take a sanity check and ask the question - why introduce these tools into the enterprise when you consider the cost/benefit, complexity, and knowledge required against their actual business value.
https://boringtechnology.club/