Fredric News

Tag: CloudNative

  • OPNsense Firewall Archi: Packet Filter & IDS

    💡 OPNsense Firewall Archi: Packet Filter & IDS — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for OPNsense Firewall Archi: Packet Filter & IDS. Installation Management Conceptual Definition IP Band Definition NAT system WireGuard to WAN References and Guidelines (NOTE) $$ \text{Client} \xleftrightarrow{[L3]tunnel/snat} \text{VPN Interface (Original Src)} \xrightarrow{[1]blocked} \text{WAN Interface (Dst)}…

  • Helmfile Declarative CD Archi: Multi-Env

    💡 Helmfile Declarative CD Archi: Multi-Env — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Helmfile Declarative CD Archi: Multi-Env. Information References gitops repository Enterprise Cloudlab/cmp-helm Cluster Version Development environment information | Cluster Version Architectures Cluster Installation Global Setting bash Copy vi /etc/systemd/resolved.conf >>> [Resolve] DNS=<management_node_ip> 8.8.8.8 <<< systemctl restart systemd-resolved.service…

  • Dockerfile : Multi-stage Builds & Caching

    💡 Dockerfile : Multi-stage Builds & Caching — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Dockerfile : Multi-stage Builds & Caching. Samples Syntax 1. Basic command FROM Create a new image based on the image. Format: FROM : Example: FROM node:16 RUN Specifies the command to be executed during Docker image…

  • istioctl CLI Sheet: Istio Proxy Diagnosis

    💡 istioctl CLI Sheet: Istio Proxy Diagnosis — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for istioctl CLI Sheet: Istio Proxy Diagnosis. Linked Page Cluster Control install Apply the Istio manifest to install or reconfigure Istio on your cluster. uninstall Remove Istio from the cluster upgrade Upgrade your Istio control plane…

  • CSS Selectors : Compound Selectors

    💡 CSS Selectors : Compound Selectors — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for CSS Selectors : Compound Selectors. About CSS selectors CSS (Cascading Style Sheets) is responsible for providing styles to HTML elements. To do so, you need to be familiar with selectors because you need to specify the…

  • Kubernetes Helm 3 Sheet: Release & Rollback

    💡 Kubernetes Helm 3 Sheet: Release & Rollback — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Kubernetes Helm 3 Sheet: Release & Rollback. Installation bash Copy curl https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 | bash Exec completion html Copy echo “source <(helm completion bash)” >> ~/.bashrc source ~/.bashrc search bash Copy # artifacthub.io에서 차트 검색…

  • KubeVirt Virtualization on K8s: Containers

    💡 KubeVirt Virtualization on K8s: Containers — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for KubeVirt Virtualization on K8s: Containers.

  • HomeLab OPNsense Router & Firewall Setup

    💡 HomeLab OPNsense Router & Firewall Setup — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for HomeLab OPNsense Router & Firewall Setup. Step 0: Preparation Purchase Hardware Download Image 🔗 https://opnsense.org/download/ select amd64 → vga → downalod Create Bootable USB Disk bash Copy brew install balenaetcher –cask Boot BIOS entry: f2,…

  • Spring Boot logback-spring.xml: Rolling Files

    💡 Spring Boot logback-spring.xml: Rolling Files — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Spring Boot logback-spring.xml: Rolling Files. 🔗 https://velog.io/@stella6767/logback-spring.xml-%EC%84%A4%EC%A0%95%EB%B0%A9%EB%B2%95 There are various logging libraries, as shown in the picture in Spring Boot 2.0 Java Util Logging, Log4j 2, Logback Can be used by default. To make it easier…

  • ArgoCD GitOps Controller Prometheus

    💡 ArgoCD GitOps Controller Prometheus — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for ArgoCD GitOps Controller Prometheus. Index Prometheus Manifest References and Guidelines (NOTE) Name: PrometheusDeployed: k8s, argo-cd, bitnamiNote: Automatic creation of Node Exporter when using default value (Master + Worker) Argo-cd Manifest, Target Definition yaml Copy project: default source:…