November 2019
Intermediate to advanced
56 pages
1h 23m
English
Content preview from Multicloud Architecture Migration and Security
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.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.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.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.
Chapter 2. Multicloud Infrastructure Orchestration and Management
In an ideal world, IT teams would have a completely heterogeneous environment in which to deploy their entire infrastructure. Reality can be quite different. An organization could have a legacy system that is difficult to maintain or could be out of compliance with current standards.
Deploying new applications in a multicloud environment can create infrastructure management problems because each cloud provider has a different management interface that requires different mechanisms for access. One way to ease these challenges is to use containers across all cloud providers. Those of you with a security background will read that and think, “Wait, containers are just a fancy way of saying virtual machine (VM), right?”
Not exactly. Although VMs and containers share many similarities, there are some key differences. Containers are isolated systems designed to be platform agnostic. But unlike VMs, a container image does not have a full operating system (OS). Instead, it uses extensions from the kernel of the host OS in order to run a specific application or function. Hence, a container mediates what an application does with an OS.
This means that container images are both smaller and more purpose driven than VMs. A container image might run MySQL or Apache, and multiple container images can live on a host OS. This allows for isolation of one application from another and it enables organizations to easily redeploy an application ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.