Docker has been acclaimed as a revolution for the IT world. This open source project is already making a lot of changes on how developers and system administrators set up new server and web environments. If you never heard about Docker, I’ll try to explain it in a couple of lines with Wikipedia’s help:
Docker is an open-source project that automates the deployment of applications inside software containers, providing that way an additional layer of abstraction and automatization of operating system–level virtualization on Linux.Docker uses resource isolation features of the Linux kernel such as cgroups and kernel namespaces to allow independent “containers” to run within a single Linux instance, avoiding the overhead of starting virtual machines.
Docker is based on Linux Containers (LXC) and it’s actually not a substitute of your virtual machine but a way to create and manage different environments inside a server, with lightweight containers that are totally isolated from the operating system of the host machine and can be easily moved to other physical machines or VM.
Docker Certification Exam: Docker course now free for everyone!
We just published a online course dedicated to Docker. Our author, David Clinton, is now working on a second course that will be titled “Advanced Docker” and we’ll show how to use Docker with a public cloud environment like Amazon Web Services. (read more in our roadmap with upcoming courses in CloudAcademy.com).
You can start watching it for free, you just need a free account in CloudAcademy.com.
Why Docker is important for your career and for your skills
At CloudAcademy.com we do our best to teach to our members’ new cloud computing skills. Docker is not a formal cloud computing topic but it’s a real revolution and something that companies and organizations worldwide are using to speed up their development process and management of their virtual infrastructures. Docker itself is not a new paradigm, and you don’t have to think about Docker as a substitute for your cloud computing platform (public or private) or for your virtualization strategy.
By the way, Janakiram did a great job describing, in details, how Docker works.
There are 3 reasons that come to my mind about why Docker will be important skills:
- A must tool for developers: containers and the Docker’s approach gives you the opportunity to work without any need of dependencies. That means moving your container wherever you want. We already know that being a developer today means having skills also on the most important cloud computing platforms, Docker is just the next step. You can easily find it in your next job.
- You will find Docker in several production environments: given its nature, you’ll find Docker in private and public cloud and on traditional data center as well. Docker will just be another skills for system administrators and IT managers.
- Big companies are adopting Docker: that’s usually what happens when a new tool starts spreading across several companies and industries. As an opens source tool, Docker is now used by several big companies like eBay and many more will come in the next months. Google is supporting this technology as well.
We are going to release our next course on Docker in a few weeks.
Introducing Assessment Cycles
Today, cloud technology platforms and best practices around them move faster than ever, resulting in a paradigm shift for how organizations onboard and train their employees. While assessing employee skills on an annual basis might have sufficed a decade ago, the reality is that organiz...
Cloud Skills: Transforming Your Teams with Technology and Data
How building Cloud Academy helped us understand the challenges of transforming large teams, and how data and planning can help with your cloud transformation.When we started Cloud Academy a few years ago, our founding team knew that cloud was going to be a revolution for the IT indu...
Disadvantages of Cloud Computing
If you want to deliver digital services of any kind, you’ll need to compute resources including CPU, memory, storage, and network connectivity. Which resources you choose for your delivery, cloud-based or local, is up to you. But you’ll definitely want to do your homework first.Cloud ...
Announcing Skill Profiles Beta
Now that you’ve decided to invest in the cloud, one of your chief concerns might be maximizing your investment. With little time to align resources with your vision, how do you objectively know the capabilities of your teams?By partnering with hundreds of enterprise organizations, we’...
A New Paradigm for Cloud Training is Needed (and Other Insights We Can Democratize)
It’s no secret that cloud, its supporting technologies, and the capabilities it unlocks is disrupting IT. Whether you’re cloud-first, multi-cloud, or migrating workload by workload, every step up the ever-changing cloud capability curve depends on your people, your technology, and your ...
What is Chaos Engineering? Failure Becomes Reliability
In the IT world, failure is inevitable. A server might go down, an app may fail, etc. Does your team know what to do during a major outage? Do you know what instances may cause a larger systems failure? Chaos engineering, or chaos as a service, will help you fail responsibly.It almost...
AWS re:Invent 2017: Themes and Tools Shaping Cloud Computing in 2018
As the sixth annual re:Invent approaches, it’s a good time to look back at how the industry has progressed over the past year. How have last year’s trends held up, and what new trends are on the horizon? Where is AWS investing with its products and services? How are enterprises respondi...
Cloud Academy at Cloud Expo Santa Clara, Oct 31 – Nov 2
71% of IT decision-makers believe that a lack of cloud expertise in their organizations has resulted in lost revenue.1 That’s why building a culture of cloud—and the common language and skills to support cloud-first—is so important for companies who want to stay ahead of the transfor...
Product News: Announcing Cloud Academy Exams, Improved Filtering & Navigation, and More
At Cloud Academy, we’re obsessed with creating value for the organizations who trust us as the single source for the learning, practice, and collaboration that enables a culture of cloud.Today, we’re excited to announce the general availability of several new features in our Content L...
On 'the public understanding of encryption' Tweet by Paul Johnston
Some of the questions by journalists about encryption prove they don't get it. Politicians don't seem to get it either (most of them). In fact, outside technology, there are some ridiculous notions of what encryption means. Over and over again, the same rubbish around encrypti...
Our Hands-on Labs have a new look
Building new hands-on labs and improving our existing labs is a major focus of Cloud Academy for 2017 and beyond. If you search "types of adult learning," you will get approximately 16.9 gazillion hits. Many will boast about how they meet the needs of a certain type of learner (up to 70...
New infographic: Cloud computing in 2017
With 83% of businesses ranking cloud skills as critical for digital transformation in 2017, it’s great news for anyone with cloud architecting experience, and for those considering a career in cloud computing. In our new infographic, we compiled some of the latest industry research to l...