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​Beyond Kubernetes: Istio network service mesh

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Kubernetes: The smart person’s guide

Kubernetes is a series of open source projects for automating the deployment, scaling, and management of containerized applications. Find out why the ecosystem matters, how to use it, and more.

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First, Docker transformed how we ran applications. Then, Kubernetes changed how we managed containers. Now, the open-source project Istio is building on both to add a network service mesh.

Istio is built on the open-source Envoy proxy. This service mesh enables microservices sharing distributed applications to communicate and work with one another. As Matt Klein, Envoy’s creator wrote, Istio provides modern microservice and cloud-native applications with a “unified control plane that ties the pieces together in a coherent way.”

Istio also enables DevOps. In a soon-to-be-released blog, Google Cloud‘s Eric Brewer, VP Infrastructure, and Eyal Manor, VP of Engineering, point out that Istio provides vital DevOps framework “such as a common system for monitoring, logging, authorization, and billing.”

Also: Kubernetes: The smart person’s guide TechRepublic

Brewer and Manor go on: “You need tools to manage the collection of microservices, and to ensure consistent policies across them. More importantly, these policies need to be decoupled from the individual services, so that they can be more uniform and updated independently of the services.”

Istio does this at the network level. By working over the network, Istio makes it easy to integrate microservices with load balancing, service-to-service authentication, monitoring, and more, with no changes to the underlying code.

Brewer and Manor continue: “Istio offers visibility in the form of telemetry for monitoring and logs for your services, plus security by giving each service a strong identity based on its role, as well as enabling encryption by default. With that core functionality place, Istio can also be the basis for higher-level services, e.g., helping to enforce network security policies, or controlling software rollouts through canary deployments.”

This, in turn, means, “Istio also ensures a proper decoupling between development and operations, allowing operations teams to change the behavior of the system without actually changing the source code.”

Thus, Brewer and Manor said this decoupling of development and operations logic that Istio provides accomplishes two things: It allows your developers to focus on writing business logic, not infrastructure (thus making them more productive), and it gives your operations teams the tools they need to run your applications and services more reliably.

Also: The Docker and Kubernetes Certification Training Bundle CNET

Istio has already reached its 1.0 release. And, now it’s being deployed by such users as Descartes Labs, eBay, and AutoTrader UK. “Istio was a missing piece in the Kubernetes ecosystem. Kubernetes gave us the ability to distribute an application, but Istio gave us the ability to understand the application,” said Tim Kelton, a Descartes Labs co-founder, in a statement.

Google is pushing to bringing more users to Istio. Istio will be made available for Google Cloud users on Google Kubernetes Engine (GKE) in beta in December. On GKE, Istio layers a service mesh on your existing GKE clusters, and gathers telemetry on their containers. This data is then sent to Stackdriver or Prometheus. With these, you can monitor your Kubernetes-based microservices’ traffic, error rates, and latencies.

Google’s not the only company betting Istio is about to become important. IBM, Red Hat, and VMware are also working on improving the open-source network service mesh. It may well be that Istio may be an important part in IBM’s Red Hat post-acquisition hybrid-cloud plans.

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2023 Cadillac Escalade V-Series confirmed: What we know of this Super SUV

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Cadillac’s most lavish model is about to get a sports upgrade, with the 2023 Escalade V-Series marking the first time the SUV has worn the badge. While already notorious for its scale, luxury cabin, and general excess, the V-Series flavor of Escalade will add performance to that mix.

Source: Cadillac

Full details of the 2023 Escalade V-Series won’t be shared until spring of this year, Cadillac has warned. These newly-released photos, meanwhile, show the pre-production form of the SUV. Still, it gives us plenty to go on, as does the trajectory of the V-Series line in general.

For Cadillac, V-Series is more than just speed

You can’t accuse Cadillac of underplaying just what a V-badged model can do. “With nearly two decades of racing-inspired prowess,” the automaker promises, “the V-Series designation is reserved for vehicles that encompass the peak of Cadillac performance, bold, distinguished design, and innovative technology.”

The route from V-Series’ founding in 2003 to today has seen a few big changes along the way. Initially intended as a way for Cadillac to compete with Mercedes-AMG and BMW’s M division, it debuted with the 2004 Cadillac CTS-V sports sedan. That managed to score a role in the original Matrix movie series, (specifically The Matrix Reloaded, released in 2003), helping secure the green-light for the second-generation V Series in 2009.

Cadillac stuck with a familiar strategy: big, high-horsepower V8 engines, paired with its Magnetic Ride Control system for a sedan that could flick from luxury cruiser to track hero at the push of a button. By the time the ATS-V arrived in 2015, however, the criteria had expanded. Smaller and more affordable than the third-generation CTS-V – which got the Corvette C7’s 6.2-liter LT4 V8 to play with – the ATS-V packed a twin-turbo V6.

Beyond that, Cadillac attempted to replicate what BMW and Mercedes had achieved, expanding “V” as a broader badge to indicate a more sporting – though not necessarily the most sporting – iteration of a regular model. It tried, and abandoned, the V-Sport trim, and has most recently settled on “V” badged models as being entry-level performance options. The CT5-V and CT4-V are the current examples of that.

Source: DW Burnett / Cadillac

Meanwhile, a new Blackwing designation flags the most extreme examples of V-Series performance. Initially referring to Cadillac’s new Blackwing engine, but since expanded, the trim has so far appeared on the CT4-V Blackwing and CT5-V Blackwing, each produced in limited number.

What we expect from the 2023 Cadillac Escalade V-Series

For the 2023 Escalade V-Series, the expectation is an evolution in performance rather than the outright leap that Blackwing badging would indicate. The current Escalade – now in its fifth-generation – already features a V8 engine as standard. That’s 6.2-liters in size and offers 420 horsepower and 460 lb-ft of torque. A 10-speed automatic is standard.

2023 Cadillac Escalade V-Series

Source: Cadillac

They’re not small numbers, but then again the Escalade is not a small SUV. One possibility for an upgrade is the V8 from the CT5-V Blackwing, supercharged and with upwards of 600 horsepower on tap. Cadillac would obviously need to upgrade other components such as the brakes to balance that uptick in power, though Magnetic Ride suspension is already available on the SUV in its current form.

2023 Cadillac Escalade V-Series

Source: Cadillac

To better distinguish the V-Series truck visually, Cadillac has given it a moody makeover. The grille switches to black mesh, and most of the chrome has been deleted in favor of gloss-black trim. The bumpers front and rear, and the side sills, have been tweaked, and of course there are vast blacked-out wheels, too.

2023 Cadillac Escalade V-Series

Source: Cadillac

For the inside, Cadillac is playing it even more coy. A single image previews the “V” badging on the steering wheel, though we’d expect a fair amount of carbon fiber and Alcantara to feature, based on the other V-Series cars. The Escalade already offers a huge, curved dashboard display and plenty of space across three rows, not to mention a whole host of toys to play with.

2023 Cadillac Escalade V-Series

Source: Cadillac

As for 2023 Escalade V-Series pricing, there too Cadillac is saving full details. The current model spirals up to over $109k for the standard-length 4WD Sport Platinum trim, and that’s before you head into the options list. A six-figure V-Series is basically guaranteed, then, as Cadillac takes on well-esteemed (and well-equipped) performance SUVs from its German rivals.

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Brabus 800 Adventure XLP Superblack is taking it to the extreme

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Renowned Mercedes-Benz tuning house Brabus has unleashed its latest creation based on the Mercedes-AMG G63 sport-luxury SUV. It’s the newest variant of the 800 Adventure XLP Superblack, a go-anywhere pickup truck hiding a mighty powerful V8 engine under the hood.

Images: Brabus GmbH
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This Airstream eStream concept is an electric camper with an innovative twist

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Thor Industries, maker of the Airstream and other popular RVs, recently unveiled the eStream electric camper concept. It’s essentially a hi-tech Airstream travel trailer with some nifty innovations hiding underneath.

Images: Thor Industries
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