Cloud // Platform as a Service
Commentary
6/12/2014
10:46 AM
Charles Babcock
Charles Babcock
Commentary
Connect Directly
Twitter
RSS
E-Mail

What Docker Means For VMware, Cloud

Docker containers, backed by an unlikely group of allies, are suddenly the talk of the cloud community. What do containers represent in terms of IT's existing investment in VMware?

Comment  | 
Print  | 
Comments
Newest First  |  Oldest First  |  Threaded View
Laurianne
50%
50%
Laurianne,
User Rank: Author
6/19/2014 | 3:48:12 PM
Re: Online Migration of Containers works
Charlie, what do you make of the security questions being asked around containers in the past few days? Was this a big topic in thre halls at Structure conference?
Charlie Babcock
50%
50%
Charlie Babcock,
User Rank: Author
6/16/2014 | 3:13:27 PM
Re: Online Migration of Containers works
Good point, Neuroserve. I think it should be possible to move containers around among like hosts, increasing server utilization and energy efficiency. Just because we're not there yet doesn't mean we won't get there. In some ways, containers should be easier to migrate than VMs. But it will help if there is one management system to do both.
neuroserve
50%
50%
neuroserve,
User Rank: Apprentice
6/14/2014 | 2:45:59 AM
Online Migration of Containers works
You write: "Workloads can be moved around while running to maximize utilization of servers -- containers cannot."

That is probably true for the current state of Docker containers. Live migration of OpenVZ containers works for a very long time already. If you have a recent Linux kernel you probably have the patches from CRIU (criu.org) and should be able to do "checkpoint and restore" with "normal" containers, as well. If you use ploop for your container images, your live migrations can be very fast. I'm looking forward to see criu and ploop used with docker. But with Docker there seems to come a "doctrine", that favours short running containers instead of long running ones (hypervisor based VMs are also long running). Container = Application is the mantra here (ore more specific: One instance of an application is one container - just like Google does it).

Neuroserve
Charlie Babcock
50%
50%
Charlie Babcock,
User Rank: Author
6/13/2014 | 6:27:06 PM
About that $10, Joshua...
By unlikely allies, I mean Red Hat, IBM and Rackspace, among others. For months, Red Hat has seen the value of Docker, worked closely with Docker Inc. and moved to get Docker containerization inserted into Open Stack through a PaaS approach in Project Solum. Meanwhile, IBM and Rackspace put their money down on Cloud Foundry, with its different approach to PaaS. Piston's Joshua McKenty even bet $10 that Red Hat would join Cloud Foundry by the end of the year. At DockerCon, all the movement was in the other direction. Rackspace CTO John Engates praised Project Solum from the podium. IBM cited Docker's efficiencies and Cloud Foundry announced it was a Docker backer too. Instead of Red Hat joining Cloud Foundry, it looks like Cloud Foundry members are trying to catch up with Red Hat. 
TeaPartyCitizen
50%
50%
TeaPartyCitizen,
User Rank: Apprentice
6/13/2014 | 6:17:17 PM
It never would have been a big deal
If Unix and Linux had seperate name spaces per process by default when Unix was invented and had the ability to share name spaces with groups, containers would have never been a big deal. People would have always programmed like that and the paradigms and models would all be very mature by now. It's not like we needed the Higgs Bozon descovered inorder to develope this feature. I'm just saying it could have been done earlier. That said, containers will make a release engineer's eyes glow. I saw this when I first learned of them.
Charlie Babcock
50%
50%
Charlie Babcock,
User Rank: Author
6/12/2014 | 4:32:57 PM
Containers below the radar of most systems management
Laurie, Kubernetes could be the next big thing in open source code. If we get a proliferation of Linux containers, The need to create, deploy and manage them will overwhelm IT because they'll be outside the view of virtual machine and physical systems management, Is Kubernetes up to the job?

 
Laurianne
50%
50%
Laurianne,
User Rank: Author
6/12/2014 | 12:58:57 PM
Kubernetes
I had not heard of Kubernetes befire this week, and I'm guessing many people had not heard of Docker. Charlie brings some useful context to why containers have quickly become a polarizing topic in cloud.
Google in the Enterprise Survey
Google in the Enterprise Survey
There's no doubt Google has made headway into businesses: Just 28 percent discourage or ban use of its productivity ­products, and 69 percent cite Google Apps' good or excellent ­mobility. But progress could still stall: 59 percent of nonusers ­distrust the security of Google's cloud. Its data privacy is an open question, and 37 percent worry about integration.
Register for InformationWeek Newsletters
White Papers
Current Issue
InformationWeek Tech Digest - September 10, 2014
A high-scale relational database? NoSQL database? Hadoop? Event-processing technology? When it comes to big data, one size doesn't fit all. Here's how to decide.
Flash Poll
Video
Slideshows
Twitter Feed
InformationWeek Radio
Sponsored Live Streaming Video
Everything You've Been Told About Mobility Is Wrong
Attend this video symposium with Sean Wisdom, Global Director of Mobility Solutions, and learn about how you can harness powerful new products to mobilize your business potential.