AWS: Cost optimization – services expenses overview and traffic costs in AWS
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3 November 2021

Let’s proceed with our journey on AWS Cost Optimization topics. Previous parts – AWS: Cost Explorer – costs checking on the CloudWatch Logs example and AWS: cost optimization – purchasing RDS Reserved Instances. One of the shortcomings of the cloud-based architecture is the fact, that it can cost much more than when using own bare-metal… Read More »

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AWS: Lambda – copy EC2 tags to its EBS, part 2 – create a Lambda function
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13 October 2021

let’s proceed in our journey of the AWS Lambda function, which will copy an EC2’s AWS Tags to all EBS volumes, attached to it. In the first part, AWS: Lambda — copy EC2 tags to its EBS, part 1 – Python and boto3, we wrote a Python script that can get all EC2 instances in… Read More »

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AWS: Lambda – copy EC2 tags to its EBS, part 1 – Python and boto3
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13 October 2021

We have an AWS Elastic Kubernetes Service cluster, which has a few WorkerNode Groups that were created as AWS AutoScaling Groups by using the eksctl, see the AWS Elastic Kubernetes Service: a cluster creation automation, part 2 – Ansible, eksctl for more details. The WorkerNode Group configuration for the eksctl keeps a set of Tags,… Read More »

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AWS User group Ukraine: AWS Tech Conference
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1 October 2021

Boom! Get ready for a virtual AWS Tech Conference from AWS User Group Ukraine!  Conference program: 6 comprehensive presentations  6 workshops with AWS instructors  AMA with AWS experts  1500 online attendees  rewards for best questions  The speaker line-up will consist of an AWS team from all over the world that’s why the presentation will be… Read More »

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Kubernetes: Helm – “x509: certificate signed by unknown authority”, and ServiceAccount for Pod
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29 September 2021

We have Github runners in our AWS Elastic Kubernetes service cluster, that are used to build Docker images and deploy them with Helm or ArgoCD. On the first helm install run in a Github runner’s Pod, we are getting the “x509: certificate signed by unknown authority” error: [simterm] # helm –kube-apiserver=https://kubernetes.default.svc.cluster.local list Error: Kubernetes cluster unreachable:… Read More »

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AWS: disable TLS 1.0 and TLS 1.1 for Application LoadBalancer
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27 September 2021

If check any of a freshly created AWS Application LoadBalancer with a certificate from the AWS Certificate Manager, and with an HTTPS Listener’s default settings you’ll see the B grade: The main point of the SSL Labs is the support of the deprecated encryption versions – TLS 1.0 and 1.1. AWS LoadBalancer SecurityPolicy and TLS… Read More »

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AWS: Cost Explorer – costs checking on the CloudWatch Logs example
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7 September 2021

This post isn’t an overview of the AWS Cost Explorer service, but just a quick example of how to detect costs for your AWS account and its services. So, when I came back from the vacation, I noticed that we’ve paid more than usually for the AWS CloudWatch for August – almost 50 dollars per… Read More »

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.NET Meetup Temabit
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7 September 2021

Immerse yourself into the world of .NET together with the experts at Temabit and Microsoft at the new .NET Meetup coming up on September 14. Meet our speakers:  Christos Matskas, Microsoft Topic: Secure your apps with Azure and Microsoft Identity’ Anton Koposov, Temabit Fozzy Group Topic: Messaging with MassTransit Meetup will be moderate by: Natalia… Read More »

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