About rafaborrego

Consultant and security champion specialised in Java, with experience in architecture and team management in both startups and big corporations. Disclaimer: the posts are based on my own experience and may not reflect the views of my current or any previous employer

7 steps to make releases backward compatible

We should design and build systems in a way that ensures any change can be easily reverted even if the people who have worked on it are not available at that time. Imagine for example that a change starts causing memory issues on a Saturday evening, surely you want to be confident that the support teams can revert to a previous version without downtime and without involving multiple teams. The below changes are easy to implement and will give you peace of mind.

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Best practices managing credentials

Credential management is one of the most critical parts of the Ops/DevOps world as a leaked password may give full access to a database or queue that stores confidential data from customers. This could not only impact the reputation of the business but also imply very high fines, e.g. due to a GDPR data breach. Below are some practices that may sound obvious but you would be surprised by the number of companies that get hacked due to not following them.

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How to stop and re-enable batch jobs without changing the scheduler or redeploying the application

Batch jobs are essential for many applications but sometimes there is too much hassle to stop and re-enable them when needed. We are going to see what they are, the scenarios in which it is needed and how to use a standard microservice pattern to address it.

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