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      What is a Virtual Machine?


      A virtual machine, also commonly referred to as VM, is a guest system running on top of a virtualization software or hypervisor. VirtualBox, VMWare, and QEMU are examples of popular tools that are able to emulate network, disk, and other hardware resources to build virtualized environments that behave as physical computers. These environments are isolated from each other and from the host where the virtualization software is installed, each running distinct operating systems.

      Virtual machines are largely used in cloud computing to distribute hardware resources among smaller-sized, virtual private servers. When compared to containers, virtual machines are more resource-intensive, but that allows them to emulate entire servers and desktops seamlessly.

      Another important use case for virtual machines is within the context of development environments. With virtual machines, developers are able to work on their applications in isolated, pre-configured environments that are independent of their base operating system.



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      DevOps From a Virtual Minecraft World: Using Terraform to Deploy DigitalOcean Kubernetes Apps


      Video

      About the Talk

      In this lighthearted and demo-driven talk, Nic and Erik find themselves stranded with a shipwrecked Kubernetes cluster and no way to salvage it. Determined to never find themselves in this sticky situation again, they set out to learn how to use HashiCorp Terraform to consistently and reliably deploy DigitalOcean Kubernetes clusters and applications, provision storage, and how to expose them using ingress and load balancers.

      Learn with them as they embark on a voyage of discovery, rebuilding their Kubernetes hopes and dreams using infrastructure as code, and ensure you never find yourself lost at sea.

      Resources

      About the Presenters

      Recovering pathological liar, arguably the most handsome man in the north. Nic Jackson is a Developer Advocate at HashiCorp and the author of “Building Microservices in Go,” a book that examines the best patterns and practices for building microservices with the Go programming language. When not working, you can find Nic contributing to the open-source developer tool Shipyard, and teaching application development on YouTube.

      Erik Veld divides his time between developing software and teaching others about technology and modern development practices. He has over a decade of experience working as a developer, operator, and IT consultant for various global companies and startups. The lessons learned and scars accumulated from this time prepared him well for his current love of demoing cutting edge technologies live on stage. He also founded Instruqt, a hands-on learning platform. When he is not doing something with computers, you can find him in the kitchen or renovating his house. He is currently a Developer Advocate at HashiCorp.





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      Dedicated Private Cloud vs. Virtual Private Cloud: What’s the Difference?


      What is the difference between a dedicated private cloud and a virtual private cloud? As solutions architects, this is a question my teammates and I hear often. Simply put:

      • Dedicated Private Cloud (DPC) is defined as physically isolated, single-tenant collection of compute, network and sometimes storage resources exclusively provisioned to just one organization or application.
      • Virtual Private Cloud (VPC) is defined as a multi-tenant but virtually isolated, collection of compute, network and storage resources.

      A simple analogy comparing the two would be choosing between a single-family private home (DPC) versus a condo building (VPC).

      Despite the differences, both dedicated and virtual private clouds offer secure environments with flexible management options, which allow you to concentrate on your core business instead of struggling to keep up with daily infrastructure monitoring and maintenance.

      Let’s discuss each cloud product in greater depth and review use cases for dedicated vs. virtual private clouds. I’ll use INAP’s dedicated private cloud (DPC) and virtual private cloud (VPC) products as examples for the DPC and VPC differentiators.

      Dedicated Private Cloud (DPC)

      DPCs are scalable, isolated computing environments that are tailored to fit unique requirements and rightsized for any of workload or application. DPCs are ideal for mission-critical or legacy applications. When applications can’t be easily refactored for the cloud, a DPC can be a viable solution.  DPC is also ideal for organizations seeking to reduce time spent maintaining infrastructure. You do not need to sacrifice control, compliance or performance with a DPC. INAP DPCs are built with trusted enterprise-class technologies powered by VMware or Hyper-V.

      DPC use cases:

      • Compliance and audit requirements, such as PCI or HIPAA
      • Stringent security requirements
      • Large scale applications with rigorous performance and/or data storage requirements
      • Legacy applications, which may require hardware keys or specific software licensing components
      • Data center migration — scale physical compute, network and storage capacity as needed without significant investments in data center build outs
      • Complex network requirements, which may include MPLS, SDWAN, private layer 2 connections to customers, vendors or partners
      • Fully-integrated active or hot-standby disaster recovery environments
      • Infrastructure Management Services, all the way to the operating system
      • High CPU/GPU/RAM requirements
      • AI environments
      • Big Data
      • Always on applications that are not a fit for hyper-scale providers

      INAP’s DPC differentiators:

      • Designed and “right-sized” to fit your application, economics and compliance requirements
      • Built with enterprise-class technologies and powered by VMware or Hyper-V.
      • Utilize 100 percent isolated compute and highly secure, single-tenant environments perfect for PCI or HIPAA compliance.
      • Flexible compute and data storage options which allow you meet any application performance and growth requirements.
      • OS Managed services free up time from routine tasks of patching
      • Transparency into the core infrastructure technology allows you complete visibility in the inter-workings of the environment.
      • No restrictions on sizing of the VMs or application workloads because the infrastructure is custom designed for your organization specific technology needs.
      • SDN switching for flexible, quick and easy network management or dedicated switching for complex network configurations to meet any network requirements.
      • MDR security services available, which include vulnerability scanning, IDS/IPS, log management with SOC (Security Operations Center)
      • Off-site cloud backups and fully integrated and managed DRaaS available.

      Virtual Private Cloud (VPC)

      VPCs are ideal for applications with variable resource requirements and organizations seeking to reduce time spent maintaining infrastructure without sacrificing control of your virtual machines, compliance, and elasticity. They provide a customized landscape of users, groups, computing resources and a virtual network that you define. Different organizations or users of VPC resources do not have access to the underlying hypervisor for customization or monitoring plugin installation.

      VPCs are pre-designed for smaller to medium workloads and provide management and monitoring tools. They allow for very fast application deployment because the highly available compute, security, storage and hypervisors are already deployed and ready for your workload.

      VPC use cases:

      • Small to medium sized workloads with 10 to 25 VMs and simple network requirements
      • Applications with lower RAM requirements
      • Ideal for additional capacity needed for projects. Deploy in hours—not days.
      • Quickly spin up unlimited Virtual Machines (VMs) per host to support new projects or peak business cycle’s ability to quickly add resources on demand

      INAP’s VPC differentiators:

      • Designed for fast deployments enabling you to eliminate lengthy sourcing and procurement timelines
      • Shield Managed Security services included
        • 24/7 physical security in SSAE 16/SOC 2 certified Data Centers
        • Private networks & segmentation
        • Account security for secure portal access
        • DDoS protection & Mitigation
      • OS Managed services free up time from routine tasks of patching
      • Easy to use interface simplifies management and reduces operational expense of training IT staff
      • Off-site Cloud Backups and Fully integrated On-Demand (Paygo) DRaaS available
      • MDR security services available, which include vulnerability scanning, IDS/IPS, log management with SOC (Security Operations Center)

      Next Steps

      Do you know which private cloud model will work with your company’s workload and applications? Whether you’re certain that a DPC or VPC will be a good fit or you’re still unsure, INAP’s experts can help take your cloud infrastructure to the next level. Chat today to talk all things private cloud.

      Explore INAP Private Cloud.

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      Rob Lerner


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