// writing
Notes and write-ups
everything tagged aws
Assuming IAM role and role chaining in AWS
Sometimes a user or an application needs to access resources they don’t normally have access to. This is where the AWS Security Token Service (STS) comes in handy. STS is an AWS service used to obtain temporary security credentials for IAM users or roles by using the AssumeRole action. This is useful in situations like:
Keeping track of database changes and when it can be useful
My task was simple - we had a Postgres database and a data science team that needed to consume changes from the database to update their internal datasets. But how on earth would I do that? 🤷🏻♂️ Luckily, my colleagues brought some light into this mysterious database world but I still had to (wanted) read a lot to understand it better and make sure I did it right.

How We Migrated All User Files to AWS S3
Migrating data is often a challenging job, especially when every little mistake can instantly impact a user’s experience. Thus, it is necessary to research the task properly, pinpoint possible issues, and make sure the description is totally clear and everyone knows what is the expected result. Nevertheless, errors may (and most probably will) occur during the process so it is also important to keep that in mind and design the solution in a way that anticipates that and handles it accordingly. In the ideal situation, we want to complete the migration process without anyone even noticing that something has changed.