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Easy Spring Boot Deployment with AWS Elastic Beanstalk

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Friends don’t let friends write user auth. Tired of managing your own users? Try Okta’s API and Java SDKs today. Authenticate, manage, and secure users in any application within minutes. Nearly all applications rely on authentication. Developers, and the companies that employ them, want to confirm who is making the request and are they who they say they are. And, ...

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AWS: Some Tips for Avoiding Those “Holy Bill” Moments

java-interview-questions-answers

Cloud is awesome: almost-100% availability, near-zero maintenance, pay-as-you-go, and above all, infinitely scalable. But the last two can easily bite you back, turning that awesomeness into a billing nightmare. And occasionally you see stories like: Within a week we accumulated a bill close to $10K. And here I unveil a few tips that we learned from our not-so-smooth journey of ...

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Amazon AWS Rekognition Tutorial

1. Introduction Amazon Rekognition is an Amazon Web Service (AWS) that provides image and video analysis services. You can provide an image or video and the service will detect objects, people and scenes. Detected faces can also be matched against a set of known faces. This allows to implement use cases like user verification, people counting or public safety. The ...

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AWS Is Even Cloud-ier and Kuberneties-ier with Fargate and EKS

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At re:Invent this week, AWS announced a ton of cool things. You should check out their page on it for an overview of all the new stuff they’re doing — it’s a lot, and a lot of it seems pretty immediately useful. My colleague Kelly Andrews did a writeup here with a particularly musical take on the full announcement, if ...

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Test AWS cloud stack offline with Arquillian and LocalStack

When you are building your applications on AWS cloud stack (such as DynamoDB, S3, …), you need to write tests against these components. The first idea you might have is to have one environment for production and another one for testing, and run tests against it. This is fine for integration tests, deployment tests, end to end tests or performance tests, ...

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Gossip-based Kubernetes Cluster on AWS using Kops

Creating a Kubernetes cluster using Kops requires a top-level domain or a sub domain and setting up Route 53 hosted zones. This domain allows the worker nodes to discover the master and the master to discover all the etcd servers. This is also needed for kubectl to be able to talk directly with the master. This worked well but an additional hassle for the developers. Kops ...

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Hosting WordPress Application on an EC2 Instance – AWS

In this post, we will deploy WordPress Application on an EC2 Amazon Linux AMI t2.micro instance following below steps: Step 1: Set up Amazon EC2 instance following set-up-amazon-ec2-instance. Step 2: Launch an EC2 instance following ec2-launch-linux-instance. Step 3: As creating a wordpress application is not a part of this post, I already created one and zipped it as wordpress-app.zip which ...

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Going off-heap to improve latency and reduce AWS bill

java-interview-questions-answers

Most performance issues can be solved in several different ways. Many of the solutions applicable are well-understood and familiar to most of you. Some solutions, like taking certain data structures off from the JVM-managed heap, are more complex. So if you are not familiar with the concept, I can recommend to proceed to learn how we recently reduced both the ...

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