Category Archives: Cloud Computing

Google Cloud Run (GCR) vs Azure Container Instances (ACI) vs AWS ECS with Fargate

This text was taken from the book and a Udemy course The DevOps Toolkit: Catalog, Patterns, And Blueprints

Should we use managed Containers as a Service (CaaS)? That must be the most crucial question we should try to answer. Unfortunately, it is hard to provide a universal answer since the solutions differ significantly from one provider to another. Currently (July 2020), CaaS can be described as wild west with solutions ranging from amazing to useless.


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Using Docker To Deploy Applications To Azure Container Instances

This text was taken from the book and a Udemy course The DevOps Toolkit: Catalog, Patterns, And Blueprints

Help us choose the next subject for the course by filling in a survey at https://www.devopsparadox.com/survey

Azure Container Instances are a way to deploy containers in the Cloud. Based on that, you might think that ACI is not much different from other Containers as a Service solutions. But it is. It does not have horizontal scaling, nor any other features often associated with schedulers like Kubernetes. It is limited to the ability to run a single container in isolation. It is very similar to using Docker, except that it is in Azure, and that it saves us from worrying about the infrastructure needed to run containers.

So, if Azure Container Instances are very similar to Docker, why not use docker instead of az CLI? Fortunately, folks at Docker asked themselves the same question and released Docker Desktop that supports ACI. It is available since version 2.3.3+.


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Discussing The “Real” Expectations For Serverless Computing

This text was taken from the book and a Udemy course The DevOps Toolkit: Catalog, Patterns, And Blueprints

Help us choose the next subject for the course by filling in a survey at https://www.devopsparadox.com/survey

What do I expect from serverless or, for that matter, any type of deployment services?


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What do I really think about managed Functions as a Service (FaaS)?

This text was taken from the book and a Udemy course The DevOps Toolkit: Catalog, Patterns, And Blueprints

Help us choose the next subject for the course by filling in a survey at https://www.devopsparadox.com/survey

Personally, I do not think that managed Functions as a Service are a good idea. Functions are too small for my taste. The execution model in which each request is served by a fresh instance is deeply flawed. The pricing is too high for my budget.

All that being said, I can see use cases where managed FaaS is a perfect fit, but only if that would be the only flavor of serverless deployments. But it's not, even though many are putting the equation between FaaS and serverless computing.


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Should we use managed Functions as a Service (FaaS)?

This text was taken from the book and a Udemy course The DevOps Toolkit: Catalog, Patterns, And Blueprints

Help us choose the next subject for the course by filling in a survey at https://www.devopsparadox.com/survey

We should ask two significant questions when contemplating whether we should use managed Functions as a Service (FaaS) flavor of serverless computing. Should we use them? If we should, shall it be AWS Lambda, Azure Functions, Google Cloud Functions, or something completely different?

So, should we use managed FaaS? We probably should. But that's not the right question. We can almost certainly find at least one good example. A more important question is whether managed FaaS can be the solution for a significant percentage of our workload. That's the question that is much more difficult to tackle. To answer it, we might need first to establish good use cases for deploying and running functions.


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Choosing The Right Deployment Strategy

Deployment strategies affect everyone, no matter whether we are focused only on a single aspect of the application lifecycle or we are in full control. The way we deploy affects the architecture, testing, monitoring, and many other aspects. And not only that, but we can say that architecture, testing, and monitoring affect the way we deploy. All those things are closely related and affect each other.

We'll discuss different deployment strategies and answer a couple of questions. Is your application stateful or stateless? Does its architecture permit scaling? How do you roll back? How do you scale up and down? Do you need your application to run always? Should you use Kubernetes Deployments instead of, let's say, StatefulSets? Answers to those questions will not serve much unless we are familiar with some of the most commonly used deployment strategies. Not only that knowledge will help us choose which one to pick, but they might even influence the architecture of our applications.

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Terminating Application Instances (Kubernetes Chaos Engineering With Chaos Toolkit And Istio)

This is a clip from my Kubernetes Chaos Engineering With Chaos Toolkit And Istio course. Please use the coupon with a discount if you're interested in the course, or preview it for free.

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Kubernetes Chaos Engineering With Chaos Toolkit And Istio – Promotion Clip

We're very proud of the latest project we finally finished. This time we're exploring chaos engineering in Kubernetes with Chaos Toolkit And Istio.

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Deploying A New Canary Release Using Jenkins X

The video below is a clip from the "Canary Deployments To Kubernetes Using Istio and Friends" course in Udemy. It provides a high-level explanation how service mesh works. Additional preview clips are available inside the course. Please use the coupons with discounts provided below.

If you do enrol into the course, please let us know what you think and do NOT forget to rate it.

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Using Prometheus To Measure Error Rate Of Requests Managed By Istio

The video below is a clip from the "Canary Deployments To Kubernetes Using Istio and Friends" course in Udemy. It provides a high-level explanation how service mesh works. Additional preview clips are available inside the course. Please use the coupons with discounts provided below.

If you do enrol into the course, please let us know what you think and do NOT forget to rate it.

$9.99 coupon available until January 28, 2020: https://www.udemy.com/course/canary-deployments-to-kubernetes-using-istio-and-friends/?couponCode=B0B4A264C420C19F58D5

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