December 2012
Intermediate to advanced
888 pages
48h 24m
English
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Charms
Charms define how services are to be deployed and integrated and how they react to events. juju orchestrates all of this based on the instructions in charms. Charms are created using plain text metadata files. These files, with the extension .yaml, describe the details needed for deployment. These are the supported fields in a charm:
• name—The name of the charm.
• summary—A one line description.
• maintainer—This must include an email address for the main point of contact.
• description—A long description of the charm and its features.
• provides—Relations that are made available from this charm.
• requires—Relations that must already exist for this charm to work.
• peers—Relations that work together with this charm.
This sounds complicated, ...
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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.