Hey everyone! I recently got offered a position at a company that values my sysadmin skills, but I'm new to DevOps and CI/CD processes. While I'm comfortable with individual technologies, the CI/CD pipeline stuff makes me a bit nervous. I want some practical advice on how to avoid major slip-ups, manage my transition into this role effectively, and prevent serious issues during code deployment. I know there are DEV, QA, and PROD environments for a reason, but I'd love to learn from your experiences and mistakes!
7 Answers
Honestly, if you're unsure about taking the role, maybe consider gaining some more experience before diving in. But if you know the basics well, you can always google how to implement specific concepts in tools like Ansible and Terraform. A lot of this can be automated, and you'll do great!
A crucial piece of advice: never delete a live production server! That's just asking for trouble. Trust me, understanding your infrastructure can save you a lot of headaches.
In terms of CI/CD, aim for a 'fail fast' approach. You should get notified of failures early on, which helps prevent major problems during deployment. Make sure your pipeline has proper guardrails and a thorough review process.
Don't hesitate to create virtual machines on your workstation to try out new ideas and concepts without risking anything on your live systems.
One of the best ways to avoid disasters is to test your changes in various environments before moving to production. It’s great that you were headhunted; the fact that they chose you means they believe in your potential, so don't be afraid to ask for time to learn and adapt!
Definitely consider containerizing your code! It can simplify deployment and reduce risks associated with environment differences.
Check out minimumcd.org. It has some solid resources that would keep you on the right track regarding CI/CD processes.
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