Peter Azurahc

Great idea! I'm jumping on the Kickstarter now.

Hopefully the book covers how to connect with these folks? My family is interested in homesteading and we're dipping our toes in, but aside from buying/inheriting someone's property a mentorship would be extremely helpful.
We don't mind making mistakes and learning but getting off the ground faster would be excellent. It also gives you a lot more confidence knowing you have someone you can ask any question and they'll probably know what you're going through.


Thanks for putting this all together!

Thanks Tim, thank makes sense. It makes sense where kubernetes fits into the picture. Thanks!

Best of luck on your book, I will try to check it out.

Hi,
Thanks so much for coming to answer our questions.

For anyone working in large enterprise, especially something like FinTech, things tend to grow into huge scales. Are there easy ways to organize and group containers when they hit milestones of 10k, 20k,30k containers? In your experience do containers promote the building of less infrastructure or expand more when compared to VM's? I imagine people would want to build out more containers as microservices.

From the little I understand when coupled with pipelines docker can be extremely flexible and easy to update/deploy and roll back, (CI/CD). Is it easy to keep applications organized, and debug issues? Again especially as things scale across hundreds of applications?

Thanks!,
Peter

wow Jay, thank you for the detailed response. Find and Curl can be horribly time consuming, I have a handful of scripts that are regularly run that could really use improving.

One example I curl 900 servers to extract API info in JSON, and then perform various logic based on the data retrieved. Server count varies of course, but this script can easily take over 24 hours to complete. And good luck if I tweaked it and messed up one of the logic points!! Learned about testing in small sets very quickly.
Does GO have good inter-operability with JSON? I read Ruby is good in this area, but with Bash getting the libraries to work without issues is difficult. Primary issue being that our server environment is locked down tight I can't easily use libraries in some environments so I have to perform the extract and analysis portions separately... fun fun. Having a one stop shop in GO coupled with faster run times, you're speaking my language!
The speed increase in find and curl, is that based on the language alone or breaking out work in GO routines? Or better yet, both?


How cool is that you wrote the Head First Ruby book too, that one has been on my todo list.

For those reading along, check out Jay's twitter account. I really like the articles you post and topics you cover. When I saw you were also speaking at Emerging Technology for the Enterprise in Philly I was disappointed to see tickets were already sold out. Looks like a fantastic conference.

Hi,

Thanks for the QA, one big question I have after hearing so my talk about GO. Where can it take me? What would my end goal be? As a System Administrator is it worth moving basic scripting to GO? Typically for me BASH scripts will do some basic work across the environment. One example pull data from HPE server ILO API's to get health status or firmware versions. Anything more repetitive gets pushed into a CHEF cookbook.

I would love to jump in deeper, but would like to have some end goal in site. Maybe creating a GUI interface for triggering different scripts or providing input to scripts? BTW I love the Head First series, I'm so glad to see GO in the catalog!


Thanks!!!
Pete

Hi all,

I'm having difficulty understanding were to start with a program I am trying to write. Maybe someone can help forward me to a relevant tutorial or concept.

My app idea, which I hope to offer on the Amazon app store, is a basic network fire manager application. I've tried just about everything available on the Amazon app store, and even side loaded a few APKs, but while file manager applications like "File Explorer" work great on android they are really badly optimized for the Fire line of Amazon streaming devices. The remote just doesn't work well and the interfaces are very difficult to use for the everyday user. The conclusion is I just want to build one myself, something my wife or 2 year old daughter could figure out. Once the network share is programmed, just flick through the folders find the video or picture you are looking for and play/view it with an application that is already installed like VLC, etc.

Right now I'm setting up the build environment, using Amazon's version of Android Studio. But I really have no idea where to begin with displaying text links that would be based on what's discovered in a network location. How would I generate text that is then "clickable" I'd like to start by optimizing for Samba shares and branch out from there. I will also keep the project open source, as I am a pretty greenhorn coder and could use the help!

suggestions? thoughts?

Thanks for your help Piet. I got it working.

Yes this is a very interesting course so far. I will say I am impressed with the language so far, very enjoyable to learn.

Hi All,

 I'm trying to find my blunder here. I just started the Coursera specialization in Scala, and the first class is Scala Principles. I've created a workbook and have code that was provided giving me an issue. I saw it compile in the video, lol so it's correct in some shape / form. I just can't quite understand the issue the compiler as with it.
Advice?

def abs(x: Double): Double = if (x<0) -x else x def sqrtIter(guess: Double, x: Double): Double =  if (isGoodEnough(guess, x)) guess  else sqrtIter(improve(guess,x),x) def isGoodEnough(d: Double, d1: Double) =  abs(guess * guess - x) < 0.001 def improve(d: Double, d1: Double) =  (guess + x/guess)/2 def sqrt(x: Double): Double = sqrtIter(1.0, x) sqrt(2)

The error is
Error(8,8) not found: value guess
Error(8,16)  not found: value guess

Error(8,24)  not found: value x
Error(11,5)  not found: value guess

Hi Cay!,

 Thanks so much for your new book, as someone still a beginner in Java world but coming from a Systems Engineering background I had a few questions. Do you feel this is a good starting point to kick Java knowledge into high gear? I've done a number of Java courses in college but what I'd like to learn is how to apply Java at an enterprise level.

  It's hard to tell from the write ups on Amazon and elsewhere, what is the book like? Project based, or just details on the new features in Java 9? Anything special you hope we'll take away that we wouldn't get in a youtube tutorial or other book?

Thanks,
Peter

I go through the same problem.

One thing that has proved to be very fruitful is to learn as much as you can completely unrelated to programming, getting out into the world, talking to people, watching great movies and reading great books. My new favorite is Ted Chiang, he writes some really good sci-fi. These things tend to give me a new perspective on life, and in a way what problems exist out there. Programming is my way of creating solutions to improve those problems.

Then you can always find new sources of learning materials, one Java book might be a drag, but the next one might have the insight's that reflect your interest. Find specializations. Options abound.


Good luck, let us know how you progress!

Hi David,

 I'm interested in learning more about your mock exams. I want to ask you, have you found that becoming certified provides an edge for programmers early in their career or looking for their first job? Or even a way to leverage a jump from a more IT centric position to programming. I find myself in a similar position, working everyday with programmers and looking to show my company I'm worth moving to the other side.

Also have you found any stastical difference between studying using only say books and videos vs. studying using mock tests? Has it proven to be a big help in your experience?

Thanks,
Peter

Great, Thanks!!

Thanks Tim Thanks Paul,

Yea sometimes my primary email ends up in the spam box I've noticed. I've resent my submission using an alternate email. I'll also send you a PM just incase.

Thanks,
Peter

Hi,

I received a private message with instructions on how to confirm the copy of the book I won in the Openstack book promotion, (Thank you again, so excited about this!). I sent out an email using the guidelines specified in the private message but I haven't received a confirmation email back.
I guess my question is, did the goat get my email?!

Thanks,
Peter


https://coderanch.com/t/665908/Cloud-Virtualization/Winners-OpenStack-Action

Thank you Cody, I am super excited to get my copy of the book!! I'm prepping my server now so that I can jump right in when it arrives!!

Congrats to everyone who won.


Peter