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Linuxcon: The Changing Role of the Server OS
================================================================================
SEATTLE - Containers might one day change the world, but it will take time and it will also change the role of the operating system. That's the message delivered during a Linuxcon keynote here today by Wim Coekaerts, SVP Linux and virtualization engineering at Oracle.
![](http://www.serverwatch.com/imagesvr_ce/6421/wim-200x150.jpg)
Coekaerts started his presentation by putting up a slide stating it's the year of the desktop, which generated a few laughs from the audience. Oracle Wim Coekarts Truly, though, Coekaerts said it is now apparent that 2015 is the year of the container, and more importantly the year of the application, which is what containers really are all about.
"What do you need an operating system for?" Coekaerts asked. "It's really just there to run an application; an operating system is there to manage hardware and resources so your app can run."
Coekaerts added that with Docker containers, the focus is once again on the application. At Oracle, Coekaerts said much of the focus is on how to make the app run better on the OS.
"Many people are used to installing apps, but many of the younger generation just click a button on their mobile device and it runs," Coekaerts said.
Coekaerts said that people now wonder why it's more complex in the enterprise to install software, and Docker helps to change that.
"The role of the operating system is changing," Coekaerts said.
The rise of Docker does not mean the demise of virtual machines (VMs), though. Coekaerts said it will take a very long time for things to mature in the containerization space and get used in real world.
During that period VMs and containers will co-exist and there will be a need for transition and migration tools between containers and VMs. For example, Coekaerts noted that Oracle's VirtualBox open-source technology is widely used on desktop systems today as a way to help users run Docker. The Docker Kitematic project makes use of VirtualBox to boot Docker on Macs today.
### The Open Compute Initiative and Write Once, Deploy Anywhere for Containers ###
A key promise that needs to be enabled for containers to truly be successful is the concept of write once, deploy anywhere. That's an area where the Linux Foundations' Open Compute Initiative (OCI) will play a key role in enabling interoperability across container runtimes.
"With OCI, it will make it easier to build once and run anywhere, so what you package locally you can run wherever you want," Coekaerts said.
Overall, though, Coekaerts said that while there is a lot of interest in moving to the container model, it's not quite ready yet. He noted Oracle is working on certifying its products to run in containers, but it's a hard process.
"Running the database is easy; it's everything else around it that is complex," Coekaerts said. "Containers don't behave the same as VMs, and some applications depend on low-level system configuration items that are not exposed from the host to the container."
Additionally, Coekaerts commented that debugging problems inside a container is different than in a VM, and there is currently a lack of mature tools for proper container app debugging.
Coekaerts emphasized that as containers matures it's important to not forget about the existing technology that organizations use to run and deploy applications on servers today. He said enterprises don't typically throw out everything they have just to start with new technology.
"Deploying new technology is hard, and you need to be able to transition from what you have," Coekaerts said. "The technology that allows you to transition easily is the technology that wins."
--------------------------------------------------------------------------------
via: http://www.serverwatch.com/server-news/linuxcon-the-changing-role-of-the-server-os.html
作者：[Sean Michael Kerner][a]
译者：[译者ID](https://github.com/译者ID)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](https://linux.cn/) 荣誉推出
[a]:http://www.serverwatch.com/author/Sean-Michael-Kerner-101580.htm

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LinuxCon's surprise keynote speaker ​Linus Torvalds muses about open-source software
================================================================================
> In a broad-ranging question and answer session, Linus Torvalds, Linux's founder, shared his thoughts on the current state of open source and Linux.
**SEATTLE** -- [LinuxCon][1] attendees got an early Christmas present when the Wednesday morning "surprise" keynote speaker turned out to be Linux's founder, Linus Torvalds.
![zemlin-and-torvalds-08192015-1.jpg](http://zdnet2.cbsistatic.com/hub/i/2015/08/19/9951f05a-fedf-4bf4-a4a1-3b4a15458de6/c19c89ded58025eccd090787ba40e803/zemlin-and-torvalds-08192015-1.jpg)
Jim Zemlin and Linus Torvalds shooting the breeze at LinuxCon in Seattle. -- sjvn
Jim Zemlin, the Linux Foundation's executive director, opened the question and answer session by quoting from a recent article about Linus, "[Torvalds may be the most influential individual economic force][2] of the past 20 years. ... Torvalds has, in effect, been as instrumental in retooling the production lines of the modern economy as Henry Ford was 100 years earlier."
Torvalds replied, "I don't think I'm all that powerful, but I'm glad to get all the credit for open source." For someone who's arguably been more influential on technology than Bill Gates, Steve Jobs, or Larry Ellison, Torvalds remains amusingly modest. That's probably one reason [Torvalds, who doesn't suffer fools gladly][3], remains the unchallenged leader of Linux.
It also helps that he doesn't take himself seriously, except when it comes to code quality. Zemlin reminded him that he was also described in the same article as being "5-feet, ho-hum tall with a paunch, ... his body type and gait resemble that of Tux, the penguin mascot of Linux." Torvald's reply was to grin and say "What is this? A roast?" He added that 5'8" was a perfectly good height.
More seriously, Zemlin asked Torvalds what he thought about the current excitement over containers. Indeed, at times LinuxCon has felt like DockerCon. Torvalds replied, "I'm glad that the kernel is far removed from containers and other buzzwords. We only care about just the kernel. I'm so focused on the kernel I really don't care. I don't get involved in the politics above the kernel and I'm really happy that I don't know."
Moving on, Zemlin asked Torvalds what he thought about the demand from the Internet of Things (IoT) for an even smaller Linux kernel. "Everyone has always wished for a smaller kernel," Torvalds said. "But, with all the modules it's still tens of MegaBytes in size. It's shocking that it used to fit into a MB. We'd like it to be mean lean, mean IT machine again."
But, "Torvalds continued, "It's hard to get rid of unnecessary fat. Things tend to grow. Realistically I don't think we can get down to the sizes we were 20 years ago."
As for security, the next topic, Torvalds said, "I'm at odds with the security community. They tend to see technology as black and white. If it's not security they don't care at all about it." The truth is "security is bugs. Most of the security issues we've had in the kernel hasn't been that big. Most of them have been really stupid and then some clever person takes advantage of it."
The bottom line is, "We'll never get rid of bugs so security will never be perfect. We do try to be really careful about code. With user space we have to be very strict." But, "Bugs happen and all you can do is mitigate them. Open source is doing fairly well, but anyone who thinks we'll ever be completely secure is foolish."
Zemlin concluded by asking Torvalds where he saw Linux ten years from now. Torvalds replied that he doesn't look at it this way. "I'm plodding, pedestrian, I look ahead six months, I don't plan 10 years ahead. I think that's insane."
Sure, "companies plan ten years, and their plans use open source. Their whole process is very forward thinking. But I'm not worried about 10 years ahead. I look to the next release and the release beyond that."
For Torvalds, who works at home where "the FedEx guy is no longer surprised to find me in my bathrobe at 2 in the afternoon," looking ahead a few months works just fine. And so do all the businesses -- both technology-based Amazon, Google, Facebook and more mainstream, WalMart, the New York Stock Exchange, and McDonalds -- that live on Linux every day.
--------------------------------------------------------------------------------
via: http://www.zdnet.com/article/linus-torvalds-muses-about-open-source-software/
作者：[Steven J. Vaughan-Nichols][a]
译者：[译者ID](https://github.com/译者ID)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](https://linux.cn/) 荣誉推出
[a]:http://www.zdnet.com/meet-the-team/us/steven-j-vaughan-nichols/
[1]:http://events.linuxfoundation.org/events/linuxcon-north-america
[2]:http://www.bloomberg.com/news/articles/2015-06-16/the-creator-of-linux-on-the-future-without-him
[3]:http://www.zdnet.com/article/linus-torvalds-finds-gnome-3-4-to-be-a-total-user-experience-design-failure/