2. Pieter Vincken
2
ME
• Consultant at Ordina
• Working for Galapagos NV
• Cloud Architect
• Software architect & developer background
• Interested in: Automation, public cloud in enterprises, hyperscale
software
• Company blog
• LinkedIn
25. WHO ARE WE?
Ordina is an independent IT services provider in the Benelux. We are the
partner that helps you make your digital transformation and that gives you
a digital edge. We call this Ahead of change.
We do this by connecting technology, business challenges and people. We
help you to accelerate, to develop smart IT solutions, to launch new digital
services and make sure people embrace them. This is how we create a
digital head start and make sure your organization stays ahead of change.
Ordina was founded in 1973. Its shares have been listed on Euronext
Amsterdam since 1987 as part of the Smallcap Index (AScX).
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26. WHAT DO WE STAND FOR?
Thanks to digitalization, developments are following each other in rapid
succession.
To maintain a sustainable advantage, our clients have to respond to
developments in their markets quickly.
Ordina is used to looking ahead proactively, due to our five business
propositions.
Ordina knows everything about technology and how to improve business.
Anticipatory and forward-looking, our people help clients take on the
challenges of tomorrow.
Ahead of change therefore represents our ambition to help our clients truly
stay ahead of change.
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27. • Netflix microservices talk: https://www.youtube.com/watch?v=CZ3wIuvmHeM
• Blogpost: Why cloud? https://ordina-jworks.github.io/leadership/2021/10/15/5-reasons-not-to-go-to-the-cloud.html
• Blogpost: Automation enables speed: https://ordina-jworks.github.io/cloud/2020/06/02/terraform.html
• JOIN 2020: Alphabet case talk: https://www.youtube.com/watch?v=uz4bs9EQA0E
• Microservice guide by Martin Fowler: https://martinfowler.com/microservices/
• Kubernetes basics: https://www.youtube.com/watch?v=hAPRatgA91g&list=PLLasX02E8BPCrIhFrc_ZiINhbRkYMKdPT
• Azure Demo: https://github.com/pietervincken/basic-azure-demo
• Azure Demo video: https://youtu.be/tt7v-fOu9xU
• Image by vectorjuice on Freepik
• Image by Freepik
• Image by vectorjuice on Freepik
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REFERENCES
Types of cloud services: IaaS, PaaS, SaaS
Most cloud computing services fall into three broad categories: infrastructure as a service (IaaS), platform as a service (PaaS), and software as a service (Saas). These are sometimes called the cloud computing stack, because they build on top of one another. Knowing what they are and how they’re different makes it easier to accomplish your business goals.
Infrastructure-as-a-service (IaaS)
The most basic category of cloud computing services. With IaaS, you rent IT infrastructure—servers and virtual machines (VMs), storage, networks, operating systems—from a cloud provider on a pay-as-you-go basis.
Infrastructure as a service (IaaS) is an instant computing infrastructure, provisioned and managed over the Internet. Quickly scale up and down with demand, and pay only for what you use.
IaaS helps you avoid the expense and complexity of buying and managing your own physical servers and other datacenter infrastructure. Each resource is offered as a separate service component, and you only need to rent a particular one for as long as you need it. The cloud computing service provider manages the infrastructure, while you purchase, install, configure, and manage your own software—operating systems, middleware, and applications.
Platform as a service (PaaS)
Platform-as-a-service (PaaS) refers to cloud computing services that supply an on-demand environment for developing, testing, delivering, and managing software applications. PaaS is designed to make it easier for developers to quickly create web or mobile apps, without worrying about setting up or managing the underlying infrastructure of servers, storage, network, and databases needed for development.
Platform as a service (PaaS) is a complete development and deployment environment in the cloud, with resources that enable you to deliver everything from simple cloud-based apps to sophisticated, cloud-enabled enterprise applications. You purchase the resources you need from a cloud service provider on a pay-as-you-go basis and access them over a secure Internet connection.
Like IaaS, PaaS includes infrastructure—servers, storage, and networking—but also middleware, development tools, business intelligence (BI) services, database management systems, and more. PaaS is designed to support the complete web application lifecycle: building, testing, deploying, managing, and updating.
PaaS allows you to avoid the expense and complexity of buying and managing software licenses, the underlying application infrastructure and middleware or the development tools and other resources. You manage the applications and services you develop, and the cloud service provider typically manages everything else.
Software as a service (SaaS)
Software-as-a-service (SaaS) is a method for delivering software applications over the Internet, on demand and typically on a subscription basis. With SaaS, cloud providers host and manage the software application and underlying infrastructure, and handle any maintenance, like software upgrades and security patching. Users connect to the application over the Internet, usually with a web browser on their phone, tablet, or PC..
Software as a service (SaaS) allows users to connect to and use cloud-based apps over the Internet. Common examples are email, calendaring, and office tools (such as Microsoft Office 365).
SaaS provides a complete software solution that you purchase on a pay-as-you-go basis from a cloud service provider. You rent the use of an app for your organization, and your users connect to it over the Internet, usually with a web browser. All of the underlying infrastructure, middleware, app software, and app data are located in the service provider’s data center. The service provider manages the hardware and software, and with the appropriate service agreement, will ensure the availability and the security of the app and your data as well. SaaS allows your organization to get quickly up and running with an app at minimal upfront cost.
“On-premise” datacenters
Servers in basement
Proper server rooms
Proper server buildings
2006 AWS EC2 launch
Compute as a service
Large scale public cloud
Today
Hybrid cloud (on-premise with scale out capabilities in public cloud)
Multi cloud (landscape across different public cloud providers)
On-premise DC only in specific use cases (Low latency, air gapped systems, legacy…)
Screenshot from https://www.youtube.com/watch?v=XZmGGAbHqa0
From https://blog.google/around-the-globe/google-europe/new-data-data-centers-how-google-helps-regions-grow/
Architectural changes
Monoliths vs microservices
Real time data processing (vs overnight batches)
Increased complexity
Load requirements
Applications running for 10s to 100s of users at companies
Applications running for literally millions of users
Data processing requirements
Speed of applications
Slow is broken
Pets vs cattle
Due to sizing, not possible to manage all workloads anymore
Cost
Total cost of ownership
Google DC in Saint Ghislain -> 1,6 billion investment (not running cost) since 2007
VM 4 core, 16GB, 100GB SSD -> 1,000 euro per year
Time to market
Spinning up 1 VM in the cloud, 3 minutes of work
Spinning up 1 server in a rack, 15 minutes -> months, with todays chip shortage -> year+
E.g. going from 0 to fully deploy landscape 90 minutes
Levels of operational abstraction
Managed storage
Managed static web hosting
Managed database
Function as a service / Serverless
Flexibility
Every morning developers start -> 60 VMs (32GB, 8 cores each) get started
Every night -> 60 VMs are destroyed
Saving 60% on cost (and less unused resources)
Automation capabilities
Infrastructure as code
Automated scaling based on load
Automated policy enforcement
Security
Large cloud providers have larger budgets to devote to this
Best practises embedded in platform
Auditiblity based on standards (ISO, HIPAA, NIST, IRS, …)
