How to ‘DevOps’ as a Software Developer

How to ‘DevOps’ as a Software Developer

There has been a longstanding gap in the software world between developers and operations teams that has resulted in endless failures in software delivery. Most of these failures are attributed to the lack of consideration for operational challenges during the development stage. To tackle these, DevOps was introduced. It is a cultural philosophy to bring the two teams to work together to bridge this gap.

Here’s a good excerpt from  how AWS defines ‘DevOps’:

DevOps is the combination of cultural philosophies, practices, and tools that increases an organization’s ability to deliver applications and services at high velocity: evolving and improving products at a faster pace than organizations using traditional software development and infrastructure management processes.

Here are 4 key skills that will enable you to tackle the most common operational challenges and move towards a “DevOps” paradigm.

1. Know your operating system

Your software or code is only efficient if it can work in harmony with the system underneath.

The non-prod environments where the software gets built could be vastly different from how the production machines are set up. Your code needs to consider these beforehand. Some important ones are:-

1.1 — Disk I/O

If your software writes or reads from the filesystem, be aware of the  FS type and its underlying disk I/O limitations. For instance, if your disk is an NFS mount, the I/O operations will be relatively slow.

As a safe rule, always consider batching requests for I/O operations.

1.2 — Memory allocation

How much of the OS’s physical memory will the app use? Depending on the use case and hardware resources available to you, workout if you need to run it as a standalone application or a microservice.

This will determine how many operations you can concurrently perform in your code. Your thread count_, _I/O buffer sizeandin-memory caching—all depend on this.

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