--- title: "Jarkynbyek (Jack) Japar (@jackjapar) | Hashnode" description: "Jarkynbyek (Jack) Japar (@jackjapar) writes on Hashnode. Read their latest articles and follow their work." url: "https://hashnode.com/@jackjapar" --- @jackjapar # Jarkynbyek (Jack) Japar @jackjapar · USA · Joined May 2025 ### [Terraform Associate (004) – Exam Cheat Sheet](https://jackjapar.com/terraform-associate-004-exam-cheat-sheet?utm_source=hashnode&utm_medium=feed) Prepare for the Terraform Associate (004) exam: core concepts, workflows, variables, state management, essential commands 5 min read · [jackjapar.com](https://jackjapar.com/terraform-associate-004-exam-cheat-sheet?utm_source=hashnode&utm_medium=feed) [Jan 8](https://hashnode.com/posts/terraform-associate-004-exam-cheat-sheet/696001c92de2e1f059c16c97) ### [Hosting a DNS Server on My Homelab Kubernetes Cluster](https://jackjapar.com/hosting-a-dns-server-on-my-homelab-kubernetes-cluster?utm_source=hashnode&utm_medium=feed) Network wide ad-blocking in your home internet 3 min read · [jackjapar.com](https://jackjapar.com/hosting-a-dns-server-on-my-homelab-kubernetes-cluster?utm_source=hashnode&utm_medium=feed) [Dec 15, 2025](https://hashnode.com/posts/hosting-a-dns-server-on-my-homelab-kubernetes-cluster/693f67750b72b216875d853b) ### [Self-hosted Google Photos by Immich](https://jackjapar.com/self-hosted-google-photos-by-immich?utm_source=hashnode&utm_medium=feed) On My Basement Kubernetes Cluster (With Optional S3 Backups) 4 min read · [jackjapar.com](https://jackjapar.com/self-hosted-google-photos-by-immich?utm_source=hashnode&utm_medium=feed) [Dec 11, 2025](https://hashnode.com/posts/self-hosted-google-photos-by-immich/693b39e033bd6dc724e8a631) ### [How to Monitor Your Spring Boot App with Prometheus and Grafana in Kubernetes](https://jackjapar.com/how-to-monitor-your-spring-boot-app-with-prometheus-and-grafana-in-kubernetes?utm_source=hashnode&utm_medium=feed) I'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... 4 min read · [jackjapar.com](https://jackjapar.com/how-to-monitor-your-spring-boot-app-with-prometheus-and-grafana-in-kubernetes?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/how-to-monitor-your-spring-boot-app-with-prometheus-and-grafana-in-kubernetes/68532add53de560233bd7a81) [Jun 18, 2025](https://hashnode.com/posts/how-to-monitor-your-spring-boot-app-with-prometheus-and-grafana-in-kubernetes/68532add53de560233bd7a81) ### [Monitoring Kubernetes Cluster with Prometheus and Grafana using ArgoCD](https://jackjapar.com/monitoring-kubernetes-cluster-with-prometheus-and-grafana-using-argocd?utm_source=hashnode&utm_medium=feed) Set up Prometheus and Grafana with ArgoCD to monitor Kubernetes clusters and track resource usage of your applications efficiently 4 min read · [jackjapar.com](https://jackjapar.com/monitoring-kubernetes-cluster-with-prometheus-and-grafana-using-argocd?utm_source=hashnode&utm_medium=feed) [Jun 13, 2025](https://hashnode.com/posts/monitoring-kubernetes-cluster-with-prometheus-and-grafana-using-argocd/684c20ded287ef3fb54b7895)