Download as PDF, PPTX
![Dockerfile example
FROM ubuntu
MAINTAINER Scott Lowe <address@domain.com>
# Make sure package repositories are correct
RUN echo “deb http://archive.ubuntu.com/ubuntu precise main
universe" > /etc/apt/sources.list
# Update packages and install OpenSSH
RUN apt-get update
RUN apt-get install -y openssh-server
# Expose port and run SSH daemon
EXPOSE 22
CMD [“/usr/sbin/sshd -D”]](https://image.slidesharecdn.com/2014-02-06-positioning-future-tech-140206183844-phpapp02/75/Positioning-Yourself-for-the-Future-12-2048.jpg)
![JSON example
{
"result_count": 3,
"results": [
{
"_href": "/ws.v1/lswitch/3ca2d5ef-6a0f-4392-9ec1-a6645234bc55",
"_schema": "/ws.v1/schema/LogicalSwitchConfig",
"type": "LogicalSwitchConfig"
},
{
"_href": "/ws.v1/lswitch/81f51868-2142-48a8-93ff-ef612249e025",
"_schema": "/ws.v1/schema/LogicalSwitchConfig",
"type": "LogicalSwitchConfig"
},
{
"_href": "/ws.v1/lswitch/9fed3467-dd74-421b-ab30-7bc9bfae6248",
"_schema": "/ws.v1/schema/LogicalSwitchConfig",
"type": "LogicalSwitchConfig"
}
]
}](https://image.slidesharecdn.com/2014-02-06-positioning-future-tech-140206183844-phpapp02/75/Positioning-Yourself-for-the-Future-15-2048.jpg)
Uploaded byScott Lowe
Positioning Yourself for the Future
The document outlines key technologies and trends for professionals to watch and learn, focusing on Linux, network virtualization, OS/application containers, and RESTful APIs. Each technology is discussed in terms of its relevance and practical applications, providing insights for positioning oneself amid future developments in technology. Additionally, it highlights community engagement and offers a resource for further exploration of the topics covered.
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Positioning Yourself for the Future
- 1. Positioning Yourself for theFuture Some technologies and trends that I recommend watching or learning Scott Lowe, VCDX 39 vExpert, Author, Blogger, Geek http://blog.scottlowe.org / Twitter: @scott_lowe
- 2. Your name isfamiliar...
- 3. Before going anyfurther • Get involved! Audience participation is encouraged and requested. • If you use Twitter, feel free to tweet about this session (use @VMUGSydney, @MyVMUG or hashtag #VMUGSydney) •I encourage you to take photos or videos of today’s session and share them online • This presentation will be made available online after the event
- 4. Some history • In Oct2012, I gave a presentation titled “Three Technologies Worth Watching or Learning” • Presentation is available online at <https://speakerdeck.com/ slowe/three-technologies-worth-watching-or-learning> • This presentation is an update to that one • Attempts to answer the question, “How can I best position myself for future trends?”
- 5. Some new technologiesto watch/learn (2014 edition) • Linux • Network • OS virtualization and application containers • RESTful APIs
- 6.
- 7. Why Linux? • Popping •Serves up more and more throughout the data center as the basis for many products • Inexpensive • Key solution for a variety of issues things: • Pick a distribution (Ubuntu & Red Hat/CentOS seem to be most prominent) • Figure out how to do common tasks (DHCP, DNS, firewall, web server, proxy, etc.)
- 8.
- 9. Why network virtualization? •A keypart of a cloud/SDDC strategy • I’m doing an NSX deep dive today at 3pm • Key things: • Some • SDN networking basics (learn the language) (original definition) and OpenFlow • Open vSwitch (OVS) • Network encapsulation protocols (STT, GRE/NVGRE, VXLAN)
- 10.
- 11. Why OS andapplication containers? • Lightweight • Two examples are Linux containers (LXC) and Docker • LXC primarily targeted at OS containers • Docker • Can way of providing isolation primarily targeted at application containers provide greater scale for the right use cases • Complementary to full machine virtualization (like VMware)
- 12. Dockerfile example FROM ubuntu MAINTAINERScott Lowe <address@domain.com> # Make sure package repositories are correct RUN echo “deb http://archive.ubuntu.com/ubuntu precise main universe" > /etc/apt/sources.list # Update packages and install OpenSSH RUN apt-get update RUN apt-get install -y openssh-server # Expose port and run SSH daemon EXPOSE 22 CMD [“/usr/sbin/sshd -D”]
- 13.
- 14. Why RESTful APIs? •The data center is increasingly API-driven • Public cloud services against which IT is being compared are API-driven (AWS, for example) • Understanding • Key APIs helps understand how to integrate solutions items: • JSON (JavaScript Object Notation) and XML (eXtensible Markup Language) • Using cURL to interrogate an API
- 15. JSON example { "result_count": 3, "results":[ { "_href": "/ws.v1/lswitch/3ca2d5ef-6a0f-4392-9ec1-a6645234bc55", "_schema": "/ws.v1/schema/LogicalSwitchConfig", "type": "LogicalSwitchConfig" }, { "_href": "/ws.v1/lswitch/81f51868-2142-48a8-93ff-ef612249e025", "_schema": "/ws.v1/schema/LogicalSwitchConfig", "type": "LogicalSwitchConfig" }, { "_href": "/ws.v1/lswitch/9fed3467-dd74-421b-ab30-7bc9bfae6248", "_schema": "/ws.v1/schema/LogicalSwitchConfig", "type": "LogicalSwitchConfig" } ] }
- 16. Honourable mentions • OpenStack •Configuration management (CFEngine, Puppet, Chef, Ansible, Salt) • Object storage (Swift, S3)
- 17.
- 18. Thank you! Don’t forgetto rate this session and provide feedback (via mobile app, inside the program guide, or via link sent to your e-mail)