J(Jarkynbyek (Jack) Japarinjackjapar.com·Jan 8 · 4 min readTerraform Associate (004) – Exam Cheat SheetThis cheat sheet is based on my notes from online courses, Hashicorp documentation, and missing & updated concepts for the Terraform Associate 004 exam after completing the exam. It is optimized for quick revision before the exam. 1. Terraform Core ...00
J(Jarkynbyek (Jack) Japarinjackjapar.com·Dec 15, 2025 · 3 min readHosting a DNS Server on My Homelab Kubernetes ClusterI decided to host my own DNS server on my homelab Kubernetes cluster. There are many reasons why someone might want to run a self-hosted DNS server, but for me, the main motivations were network-wide ad blocking and local DNS rewriting. Why Host Your...00
J(Jarkynbyek (Jack) Japarinjackjapar.com·Dec 11, 2025 · 4 min readSelf-hosted Google Photos by ImmichI've been hosting my Kubernetes cluster in the cloud for a while, but recently I managed to get my hands on a bare-metal server — a Dell PowerEdge with 32 CPU cores and 128GB RAM 😮 — and set it up in my basement. Naturally, I turned it into a Kubern...00
J(Jarkynbyek (Jack) Japarinjackjapar.com·Jun 18, 2025 · 4 min readHow to Monitor Your Spring Boot App with Prometheus and Grafana in KubernetesI've recently configured the Prometheus and Grafana stack on my Kubernetes cluster to monitor system performance, including memory, CPU, and network usage. In this post, I’ll walk you through how I integrated Prometheus into my Spring Boot applicatio...01J
J(Jarkynbyek (Jack) Japarinjackjapar.com·Jun 13, 2025 · 4 min readMonitoring Kubernetes Cluster with Prometheus and Grafana using ArgoCDIn the last blog, I configured an ArgoCD-based GitOps pipeline and deployed my distributed app called vote-app. In this post, I’ll walk through how to set up Prometheus and Grafana to monitor the Kubernetes cluster and track resource usage of the vot...00
