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Five things your code can tell you about migrating to AWS – Fedr8

steve.chambers@fedr8.com

April 2020

Applications are the cogs in your business value stream, and applications are made of code. When it comes to planning cloud migration and application modernization for your business, it’s fundamental that you ask questions of your code.

Questions like

  • What will break?
  • What can I optimize?
  • What is the risk?
  • What is the effort?

These questions are not always answerable by developers or documentation. Why? Because it’s a fact of life that developers have moved on and documentation is incomplete. Without asking these questions and finding the answers, application modernization and cloud migration can be like flying blind in fog through a mountain range: it’s risky and the crash could be fatal or very expensive.

The top five common Green Rain discoveries

We repeatedly discover the same five technical dependencies that might break in the cloud out of the hundreds of gotchas that Green Rain can discover in your code.

These offer an opportunity to do things in more cloud-ready way:

  1. User session/state management
  2. Database technology
  3. Third-party services
  4. Local disk I/O
  5. Logging

These are really common. There are a few hundred technical dependencies that the Green Rain engine has been taught to find in all the popular modern languages. It also knows whether these dependencies are critical for different clouds such as AWS, Azure and Google.

How does it work?

Green Rain isn’t a simple pattern matcher. It’s not a rules engine. Green Rain is unique in that it’s a learning engine. Green Rain uses what it’s learned to go through every file in your codebase and infers things like complexity, entanglement and dependencies.

Being a machine learning engine, Green Rain gets the majority of discoveries right and some things wrong; just like a human, but faster and with more accuracy. And unlike a human, it can analyse a million lines of code in an afternoon, with:

  • No guidance from you.
  • No customization for your organization or application.
  • No custom rules.
  • No configuration.
  • No learning curve.
  • No huge and clever human resources to find and allocate.

Green Rain works out of the box: just import and go.

But Green Rain doesn’t replace humans. The report it produces is interpreted by a human that reads the signposts that are discovered. The human expert then uses these insights to develop a remediation plan to migrate and modernize the application. This human is usually a cloud migration consultant.

Green Rain is doing what computers do best: complementing its human friends by taking on the complex, gargantuan and mundane and leaving the humans to do the clever stuff on top.

Let’s look at the five common findings in more detail.

1. User session/state management

Perhaps the most common application technique that Green Rain finds is session management. This is how your application tracks things for users as they use your application. However, outside of the cloud, this might be done in a fragile manner by storing state locally on the server – in memory or on local disk in temporary files. If the server bombs, then so do all your user sessions. Imagine using your banking app and being logged out halfway through making transactions.

Session management is always an opportunity to fix fragility and use cloud architectures like distributed session management. Why not use an external, fast, Cloud Service Provider-managed cache like Memcached or Redis and refactor your code to use them instead?

2. Database technology

I remember the days when the same RDBMS from the same vendor was used for everything. Nowadays, different database systems are used for different purposes:

  • MongoDB for NoSQL
  • MySQL for SQL
  • Neo4j for GraphQL

Do you know what your application uses? You could ask a developer or check the documentation… but is that possible, and will it be accurate? By analysing your code with Green Rain you’ll find things like this:

Green Rain has worked out that — in your Ruby application — it’s using MySQL and has listed down some key files where the code is using it, to prove it to you, write down to the line of code. 

This app is definitely using MySQL — but so what? Using this, the human expert can decide:

  1. Yes, this is the only database engine this app is using.
  2. It’s MySQL so we can migrate it to the AWS and use their MySQL RDS instead of packaging our own.
  3. If this was Oracle, maybe we could have looked at migrating from Oracle to AWS Aurora

3. Third party services

On-premises, behind those high datacenter fences and thick walls, there are often shared IT services that your application can rely on for things like email and authentication: but what happens if you move your application to the cloud? Things break.

In this case, the application is expecting to speak with a Microsoft LDAP server. Can it connect if the application is running on AWS and the LDAP server is being those high datacenter fences and thick walls? 

Maybe you can create a VPN, or Direct Connect, or maybe use cloud-based authentication.

4. Local disk I/O

It’s normal for a long-living application on a long-living server to read and write from the local filesystem. And, of course, you can do this on virtual machines on the cloud. But should you?

Typically the things you find that an application is writing to the local filesystem are configurations and logs. These are all opportunities to replace them with more distributed, resilient and cloud-native technique. For example, instead of storing configs on the local filesystem, put it in something like AWS Parameter Store. It’s more secure and, well, just better!

5. Logging

If there’s one thing that’s probably, most definitely, needs to change when you move an application to the cloud, it’s logging. But how does your application do logging? Where is the logging code in your application?

This application was a enormous 562,000 lines and 6,100 files. Amongst all of that code, Green Rain has found 72 logging-related code dependencies in 34 files. Armed with this, the expert can start to work out the size of the problem and think of a cloud-based solution.

Logging is an important application subsystem that mustn’t break when you migrate it to the cloud: imagine your application not working properly in the cloud, but you aren’t aware because logging isn’t working either.

Logging is also a great opportunity for modernization and use modern observability techniques and cloud-based products for even better application insights.

Conclusion

Your application’s source code is the source of truth. It can tell you what can go right and wrong when migrating and modernizing on the cloud.

What Green Rain does is not feasible for a developer to do: go through thousands of files and lines of code and find hundreds of dependencies that may or may not break.

In our experience, an application’s documentation is often missing, incomplete, incorrect or out of date. You can find out some things from documentation, but how correct is it? Can you make decisions based on that kind of documentation?

It’s so quick to run a codebase through Green Rain it’s a no-brainer. It might confirm what you think you already know, and that’s valuable in itself. But it’s very likely that it will find a few things that you didn’t know. Armed with this uptodate and accurate knowledge, your experts can plan their way through the clouds.

Getting started with Green Rain

Green Rain can delivered in different ways: we can host it for you, or you can get a virtual appliance and run it on your premises or cloud.

Fedr8 CEO Damion Greef discusses the company’s new Pathway offering with Alan Green on Core Finance TV

Damion Greef, CEO of Machine Learning Company Fedr8 explains how the company helps multi-level organisations migrate legacy applications to the cloud. He also discusses Pathway, Fedr8’s new one stop shop offering.

Fedr8 CEO Damion Greef talks to Alan Green about the company’s machine learning technology and the current round of fundraising

Brand Communications CEO Alan Green talks to Fedr8 CEO Damion Greef about Green Rain, the company’s proprietary machine learning engine. Damion explains how Green Rain interrogates software code at a granular level and how the process solves the challenges faced by major institutions when moving legacy applications to the cloud. Damion discusses the the decision to move the current fundraising activities to FCA regulated EIS technology funding specialists Sentient Capital.

Viewers wishing to find out more about the current fundraising round can request documents from Sentient Capital at the link below.

Fedr8’s Green Rain: Cloud-ready solutions from complex legacy software applications – Proactive Investors

Fedr8 Sales Director Richard Beckensall & advisor Derek Ward talk Proactive’s Andrew Scott through Green Rain, the business strategy and current fundraising via technology partners Sentient Capital and Crowdcube.

”Fedr8 came to market in 2008, initially as a consultancy firm, helping technology partners and resellers in the industry understand a bit more about cloud – how it was going to impact their revenue models”, Beckensall says.

”We’ve grown through automation of process and because of that journey we stumbled somewhat across the ability to automate the discovery process for applications”, he adds.

Discussing why Ward chose to get involved with Fedr8, he says: ”I’ve had a privileged opportunity to look at tech around the world .. and those positions lead me to being able to see what UK tech could do”.

”I got involved with UK tech particularly helping organisations I felt had brilliant ideas, really smart people and importantly people running them who’ve got the credentials of having taken businesses and scaled them”.

”In this cloud market place … the people who will win are the people who can accelerate the growth”, Ward says.

Green Rain, which launched back in September 2017, automates application discovery and helps support customers to make fast decisions, at scale and with greater efficiency.

Multichannel Podcast – Brand CEO Alan Green discusses Fedr8 Green Rain with Neil Butland of Sentient Capital

Multichannel Podcast – Brand CEO Alan Green discusses Fedr8 and #GreenRain IT archaeology with Neil Butland of Sentient Capital.

Neil discusses Sentient Capital’s role in identifying high potential growth company investment opportunities for their HNW client base.

Looking at Fedr8, Neil explains how Green Rain works to analyse thousands of legacy applications, and how it saves a huge amount of time and money. He compares a typical coding task: a contractor on daily rate can take 40-50 days to complete analysis and coding requirements for a single app, in comparison to Green Rain, which takes just 24 hours and can run thousands of tasks simultaneously. These factors have resulted in Sentient Capital successfully completing two fundraising rounds for Fedr8 prior to the current Crowdcube fundraising campaign.

An opportunity to own shares in Fedr8, a Great British cloud software company 

Award winning machine learning software company Fedr8 has launched a crowdfunding campaign to accelerate the roll-out of its Green Rain machine learning software.

Fedr8’s Green Rain accelerates the transformation of legacy software applications into fully cloud ready modern applications. Using its proprietary machine learning engine, Green Rain interrogates software at a code level showing where code in the software needs to be changed to suit the major cloud companies’ cloud platforms. Instead of taking several man-weeks of effort, the time required for the analysis is reduced to a few machine-hours.

Almost without exception, major international companies and institutions wish to move to the cloud in order to capitalise on the efficiencies and economies that the cloud brings. These large organisations face a unique set of challenges; to move and modernise many thousands of legacy applications they first need to understand the DNA of those applications.

Fedr8’s Green Rain has already attracted keen interest from several large banks and 2 Global Systems Integrators are actively engaged in Proofs of Concepts to adopt Green Rain as a core component of their Global Cloud Factory offerings. Given these levels of endorsement a Crowdcube Crowdfunding campaign has been launched to raise £400,000 to accelerate the roll-out of Green Rain.

CEO Damion Greef; “This is a world-changing piece of Great British machine learning software” “The legacy issues of outdated infrastructures are well documented…and in many cases have impacted on our day to day lives.” 

To find out more about the Crowdcube fundraising opportunity, click on the Crowdcube logo above or click here.

Want to find out more about Green Rain? Sales Director Richard Beckensall explains all in the video clip below.

Contacts:

Damion Greef, CEO
Tel. 07823328816
Email. info@fedr8.com

Richard Beckensall, UK sales Director
Tel. 07555 323321
Email. info@fedr8.com

Brand CEO Alan Green talks to Fedr8 director Richard Beckensall re the Crowdcube campaign & #GreenRain

Brand CEO Alan Green talks to Richard Beckensall, Sales Director at Fedr8 (fedr8.com) about the current fundraise at Crowdcube. Richard looks in detail at Fedr8’s flagship #GreenRain product, and explains the process of machine learning and source code analytics. He also explains how for large corporates, Green Rain accelerates the transformation of multiple legacy software applications into a fully digital cloud based solution.

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