Edge computing—building enterprise edge applications with Google CloudEdge computing—building enterprise edge applications with Google CloudCustomer Engineer, Application Modernization SpecialistCustomer Engineer, Application Modernization Specialist

As we discussed in part 2 of this blog series, if you design your edge computing realistically, your systems may not be connected to the network all the time. But there are a variety of tools you can use to manage those edge deployments effectively, and that can even tie them back into your main environment! In this third blog of the series, we’ll discuss the role of software in edge computing, and Google Cloud’s solutions to this end.

Google provides software

When it comes to edge environments, Google Cloud’s role is clear: we treat the edge as the domain of our customers and partners. We do not send remote servers for pickup or preconfigure boxes to sync. Instead, we provide software and tools to configure and maintain all clusters as part of the Anthos suite, combined with Google Kubernetes Engine (GKE) and the open-source Kubernetes. An Anthos cluster at the edge may be a full GKE edge installation or a fleet of microk8s Raspi clusters. As long as the attached cluster is running Anthos Config Management and Policy Controller, the remote cluster may be managed via consistent or intermittent connectivity. In addition, Anthos Fleets facilitates organizing Kubernetes clusters into manageable groups — delineated by cross-service communication patterns, location, environment, and an administrator managing the block of clusters. 

This is a different approach from other cloud providers who may provide a similar fully managed experience but with proprietary hardware that inevitably leads to a certain level of lock-in. By focusing on the software stack, Google sets the path for long term successful edge fleet management.

(As an aside, if you are interested in a fully managed experience, Google partners with vendors who will take the responsibility of managing the hardware and configuration of the Anthos edge clusters.)

Let’s look at the various tools that Google Cloud offers and how they fit into an edge deployment. 

Kubernetes and GKE

Where does Kubernetes fit in? In a nutshell, Kubernetes brings convention.

The edge is unpredictable by nature. Kubernetes brings stability, consistency and extends familiar control and data planes to the edge. It opens the door to immutable containerized deployments and predictable operations.

Data centers and cloud service providers deliver predictable environments. But the broader reach of the edge introduces instability that platform managers are not accustomed to. In fact, platform managers have been working to avoid instability for the past two decades. Thankfully, Kubernetes thrives in this extended edge ecosystem. 

Often, in enterprise we think of massive k8s clusters running complex interdependent microservice workloads. But at its core, Kubernetes is a lightweight, distributed system that also works well when deployed on the edge with just a few and focused deployments. Kubernetes increases the level of stability, offers a standardized open-source control plane API, and can serve as a communications or consolidation hub at edge installations that are saturated with devices. Kubernetes brings a standard container host platform for software deployments. A simple redundant pair of NUCs or Raspi racks can improve edge availability and normalize the way our data centers communicate with our edge footprints. 

Anthos

What about Anthos? Anthos brings order.

Without a good strategy and tools, the edge can be daunting if not impossible to manage cost-effectively. While it’s common to have multiple data centers and cloud providers, edge surfaces can number in the hundreds or thousands! Anthos brings control, governance and security at scale. With Anthos, we overlay a powerful framework of controls that extends from our core cloud and data center management systems to the farthest reaches of your edge deployments. 

Anthos allows central administration of remote GKE or attached Kubernetes clusters — running private services to support location-specific clients. We see the Anthos edge story developing in all of these industries:

  • Warehouses

  • Retail Stores

  • Manufacturing and Factories

  • Telco and Cable Providers 

  • Medical, Science and Research Labs

Anthos Config Management and Policy Controller

Configuration requirements have advanced in leaps and bounds. Anthos Config Management (ACM) and Policy Controller come to the rescue in these scenarios, enabling platform operations teams to manage large edge resources deployments (fleets) at scale. With ACM, operators create and enforce consistent configurations and security policies across edge installations.

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