October 2017
Intermediate to advanced
326 pages
7h 20m
English
Content preview from Implementing Modern DevOps
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Jobs
A Job in Kubernetes is basically an element that spawns the defined number of pods and waits for them to finish before completing its life cycle. It is very useful when there is a need to run a one-off task, such as rotating logs or migrating data across databases.
Cron jobs have the same concept as Jobs, but they get triggered by time instead of a one-off process.
Both in combination are very powerful tools to keep any system running. If you think about how we rotate logs without Kubernetes via ssh, it is quite risky: there is no control (by default) over who is doing what, and usually, there is no review process in the ssh operations carried by an individual.
With this approach, it is possible to create a Job and get other engineers ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.