Tag Archives: Kubernetes

VictoriaMetrics: deploying a Kubernetes monitoring stack
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23 July 2023

Now we have VictoriaMetrics + Grafana on a regular EC2 instance, launched with Docker Compose, see the VictoriaMetrics: an overview and its use instead of Prometheus. It was kind of a Proof of Concept, and it’s time to launch it “in an adult way” – in Kubernetes and all the configurations stored in a GitHub… Read More: VictoriaMetrics: deploying a Kubernetes monitoring stack0 (0) »

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AWS: CDK and Python – installing EBS CSI driver Add-On on EKS
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23 July 2023

Let’s continue with AWS CDK and Python. I’m not writing because I like CDK, but because there are quite a few examples on the Internet for AWS CDK with Python, so let them at least be here. So, we have a cluster – AWS: CDK and Python – building an EKS cluster, and general impressions… Read More: AWS: CDK and Python – installing EBS CSI driver Add-On… »

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AWS: Kubernetes – AWS Secrets Manager and Parameter Store integration
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22 July 2023

Storing access data in Kubernetes Secrets has an important drawback, because they are only available within the Kubernetes cluster itself. To make them available to external services, we can use Hashicorp Vault and integrate it with Kubernetes using solutions such as vault-k8sor use services from AWS – Secrets Manager or Parameter Store. Integrating AWS Secrets Manager and Parameter Store… Read More: AWS: Kubernetes – AWS Secrets Manager and Parameter Store integration0… »

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AWS: CDK and Python – configure an IAM OIDC Provider, and install Kubernetes Controllers
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22 July 2023

So we have an AWS EKS cluster built with AWS CDK and Python – AWS: CDK and Python – building an EKS cluster, and general impressions of CDK, and we have an idea of how IRSA works – AWS: EKS, OpenID Connect, and ServiceAccounts. The next step after deploying the cluster is to configure the OIDC… Read More: AWS: CDK and Python – configure an IAM OIDC Provider,… »

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AWS: CDK and Python – building an EKS cluster, and general impressions of CDK
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22 July 2023

So, Terraform is great, but so far in our project, we have decided to create the first AWS EKS clusters using the AWS CDK, because firstly, it is already on the project, and secondly, it is very interesting to try a new tool. Today we will see what came out of it, and how a… Read More: AWS: CDK and Python – building an EKS cluster, and… »

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AWS: EKS, OpenID Connect, and ServiceAccounts
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8 July 2023

Currently, I’m setting up a new EKS cluster. Among other things, I’m running ExternalDNS on it, which uses a Kubernetes ServiceAccount to authenticate to AWS in order to be able to make changes to the domain zone in Route53. However, I forgot to configure the Identity Provider in AWS IAM and ExternalDNS threw an error:… Read More: AWS: EKS, OpenID Connect, and ServiceAccounts0 (0) »

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AWS: Fargate – capabilities, comparison with Lambda/EC2 and usage with AWS EKS
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7 May 2023

AWS Fargate is another serverless solution from Amazon that takes over infrastructure management, saving the user the need to spend time configuring EC2 instances, operating systems, container management systems, etc. In general, when I was getting acquainted with Fargate, I found a great video from AWS re:Invent 2022, which very well explained (and showed) the… Read More: AWS: Fargate – capabilities, comparison with Lambda/EC2 and usage with… »

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Kubernetes: vertical Pods scaling with Vertical Pod Autoscaler
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1 May 2023

In addition to the Horizontal Pod Autoscaler (HPA), which creates additional pods if the existing ones start using more CPU/Memory than configured in the HPA limits, there is also the Vertical Pod Autoscaler (VPA), which works according to a different scheme: instead of horizontal scaling, i.e. increasing the number of Pods, it changes resources.requests of a Pod, which… Read More: Kubernetes: vertical Pods scaling with Vertical Pod Autoscaler0 (0) »

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Prometheus: running Pushgateway on Kubernetes with Helm and Terraform
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28 April 2023

We have a lot of AWS Lambda functions in the project, and developers want to be able to send metrics to our Prometheus to add their own alerts and graphs in Grafana. For this, the functions use the Prometheus library, which allows these metrics to be created (see Prometheus: Building a Custom Prometheus Exporter in… Read More: Prometheus: running Pushgateway on Kubernetes with Helm and Terraform0 (0) »

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Knative: Serverless for Kubernetes – an overview and launch in Minikube
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9 April 2023

Knative is a system that allows you to use the Serverless development model in Kubernetes. In essence, Knative can be imagined as another level of abstraction that allows developers not to dive into the details of deployment, scaling, and networking in “vanilla” Kubernetes. The development of Knative itself was started at Google with the participation of… Read More: Knative: Serverless for Kubernetes – an overview and launch in… »

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