The kube-prometheus-stack Helm chart, which deploys the kubernetes-mixin, is designed for standard Kubernetes setups, often pre-configured for specific cloud environments. However, these configurations are not directly compatible with k3s, a lightweight Kubernetes distribution. Since k3s lacks many of …
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Configuring Kube-prometheus-stack Dashboards and Alerts for K3s Compatibility
6 min read
Comprehensive Kubernetes Autoscaling Monitoring with Prometheus and Grafana
7 min read
The kubernetes-mixin is a popular resource for providing excellent dashboards and alerts for monitoring Kubernetes clusters. However, it lacks comprehensive support for autoscaling components such as Pod Disruption Budgets (PDB), Horizontal and Vertical Pod Autoscalers (HPA, VPA), Karpenter, and the …
Configuring VPA to Use Historical Metrics for Recommendations and Expose Them in Kube-state-metrics
5 min read
The Vertical Pod Autoscaler (VPA) can manage both your pods' resource requests but also recommend what the limits and requests for a pod should be. Recently, the kube-state-metrics project removed built-in support for VPA recommendation metrics, which made the VPA …
IRSA and Workload Identity with Terraform
4 min read
The go-to practice when pods require permissions to access cloud services when using Kubernetes is using service accounts. The various clouds offering managed Kubernetes solutions have different implementations but they have the same concept, EKS has IRSA and GKE has …
Private EKS API Endpoint behind OpenVPN
7 min read
AWS offers a managed Kubernetes solution called Elastic Kubernetes Service (EKS). When an EKS cluster is spun up the Kubernetes API is by default accessible by the public. However, this might be something that your company does not approve of …
Migrating Kubernetes PersistentVolumes across Regions and AZs on AWS
4 min read
Persistent volumes in AWS are tied to one Availability Zone(AZ), therefore if you were to create a cluster in an AZ where the volume is not created in you would not be able to use it. You will need to …
Creating a Low Cost Managed Kubernetes Cluster for Personal Development using Terraform
5 min read
Kubernetes is an open-source system that's popular amongst developers. It automatically deploys, scales, and manages containerized applications. Yet for those working outside of the traditional startup or corporate setting, Kubernetes can be CPU and memory-intensive, disincentivizing developers from using a …
Monitoring Kubernetes InitContainers with Prometheus
1 min read
Kubernetes InitContainers are a neat way to run arbitrary code before your container starts. It ensures that certain pre-conditions are met before your app is up and running. For example it allows you to:
- run database migrations with Django …
