I recently created a new project to help me get a better understanding of Node.js webapps using Express.js and using MongoDB on the backend. It took me a little over 2 hours to get this app properly deployed to CF and run in development at the same time. Documentation is sparse, so I'll spare you the details and just show you how it's done.

package.json:

The only thing you need here is that if you are using express.js then the "npm start" needs to be setup correctly. If you used the express generator then this is done for you.

"scripts": {
    "start": "node ./bin/www"
  }

This was originally posted on blog.emccode.com

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“Object” is common place in new applications and many vendors are offering this new generation of object-based storage. The one thing that has made object storage so successful is the lowest common denominator of S3. You may know it as Simple Storage Service from AWS, but Amazon has followed a simple REST based approach that many vendors just refer to as “S3 Storage”. There are many S3 compatible storage vendors such as Cleversafe, RiakCS, Ceph, vCloud Air Object Storage, and, of course, EMC ViPR and EMC ECS. Each vendor uses a similar API structure to follow Amazon’s S3 service.

Many people start their object storage journey using AWS, but at some point must look at other alternatives for cost and/or security. The piece that was missing is the ability to migrate objects from one S3 compatible service to another. This is where s3motion plays that crucial role.

s3motion is a combination of both a CLI tool and REST based microservice that can upload/download/copy/migrate objects between local filesystems and S3 storage or between S3 compatible storage systems.

Do you need a home lab or just want to add on to your existing? Of course you do. Who the heck doesn't. So what's up for grabs?

• Intel NUC with Intel Core i5-4250U
• G.SKILL Ripjaws Series 16GB (2x8G) 204-Pin DDR3 Memory
• SAMSUNG 840 EVO 250GB SATA III TLC Internal Solid State Drive
• Synology DS415+ Diskless System DiskStation 4-Bay NAS
• 2x Dell 1TB 7200 RPM SATA 3.0Gb/s 3.5" Hard Drive
• Cisco SG300-10 10-port Gigabit Managed Switch
• Rosewill 7ft. Cat 6 Network Cable

How do you enter? Simple. VMTurbo is giving away a home lab to 3 lucky winners who sign up for their 5.1 release webinar!

Yesterday I wrote an article highlighting how to use attr_encrypter and it was for this app. I made a video so not much text is needed. But this highlights using encryption, UUIDs with ActiceRecord, AJAX calls to a Rails controller, and some jQuery magic. You can access the application at http://vcloudairvms.cfapps.io/

Watch the video for instructions and all the goodness. And of course here is the repo with all the code => https://github.com/kacole2/vcloudairvms

I'm making a new application that will be public facing but I don't want any clear text being stored on the server for any user at anytime. This way, there will be no compromising of data. In this case, username and password credentials. This isn't an application where a user will login with their creds, if that were the case I would have used Devise. Instead, I'm taking these username and password credentials and piping them in to the application to talk to an outside service.

The first part of obscurity was making the Rails model create new entries based on UUID instead of sequential numbers. That was pretty easy by following this tutorial How to start using UUID in ActiveRecord with PostgreSQL. The second part was implementing the attr_encrypted gem. attr_encrypted allows you to store data in encrypted format to your ActiveRecord database. In this case, i'm using Postgres. 

The README is a start but doesn't get you all the way there. So here is how it's done.

Start off by creating a new scaffold. You must specify encrypted_ before anything you want encrypted in the model

rails g scaffold Model encrypted_user:string encrypted_password:string host:string

Yesterday, I wanted to record a few minutes out of an embedded HTML5 video but didn't want to cut and edit the video. So I figured I would just use ScreenFlow to capture it. Before I was able to record computer audio, I had to install the ScreenFlow Audio Driver. I followed the proper steps, and when I went to record computer audio I was hit with the error: "Recording Error Due to an internal error, the recording has unexpectedly terminated. Please try making your recording again, and if problems persist, contact us for technical support."

After a quick google search showing me a few youtube videos and Telestream forum posts, including 4.5.2 Wont Update Audio Driver, none of them worked. By the way, don't follow 4.5.2 Wont Update Audio Driver thread and repair disk permissions unless you want to waste your time.

After reading how to uninstall the ScreenFlow Audio Driver did I finally understand how to reverse engineer it. Follow these steps:

You asked for it John, so here it is!

In the realm of virtualization, 2014 was a major buzzkill. It's a big indicator of things on the horizon for 2015. From my look back in VCE, I saw a rise in VDI deployments because SSD is cheaper and getting to be commonplace. Lots of talk about network virtualization, but I've seen marginal "real-world use". I really thought a network virtualization provider such as Plumgrid, VMware NSX, Cumulous, or someone else would be leading the charge, but it looks like the technology still needs more time to mature. Give it a few more years. And for me personally, virtualization has lost my mindshare. Some of my VMware certifications have officially expired and the world doesn't need me as a VCDX.

2 weeks ago I completed a new feature on EMC Code's github page. We have a bunch of different projects that need to fit in different buckets but can sometimes span more than one bucket. Or projects in two different buckets use a common technology. To make it easier for our users to find things relevant to them, I created a tagging functionality. 

The HTML

First create a div that will have nothing in it. I've assigned this with a class if "hiddenUL". This is where we will use jQuery to append the list items with specific tags.

Next, create an unordered list of items that will need a common class. In this case, the class is "item_box" because every item is in the shape of a box. Next, we give each list item a set of classes. Don't pay too much attention to everything *inside* the list item. All of that is there for the styling of it. These classes, however, are going to be our means of tagging. Make sure spelling and capitalization are all correct. It's also important to note that we can have multiple sets of unordered lists. 

Lastly, create some buttons. You will need a button for every type of keyword or class you defined in the previous step. Also, create a 'clear tag' button that will be used to clear the tags.