Fredric News

Category: DevOps & AIOps

  • Vue.js Instance Properties & Reactivity

    💡 Vue.js Instance Properties & Reactivity — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Vue.js Instance Properties & Reactivity. 전역 변수 \$parent 부모 컴포넌트 \$refs[’refername’] 선언된 child 컴포넌트 map Object 부모컴포넌트 내에 선언 \ 전역 메서드 \$set(obj, index or key, value) sql Copy ## 변경감지 활성화 ### 오브젝트 var vm…

  • Harbor REST API Scripting: Tag Cleanup

    💡 Harbor REST API Scripting: Tag Cleanup — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Harbor REST API Scripting: Tag Cleanup. Creating Create Project bash Copy #!/bin/bash ns=$1 SCRIPT_DIR=”$(cd “$(dirname “${BASH_SOURCE[0]}”)” && pwd)” curl -u “admin:Cloud000@” \ –cacert $SCRIPT_DIR/../ca.crt \ -XPOST “https://harbor.Enterprise Cloud.hanacloudia.com/api/v2.0/projects” \ -H “Content-Type: application/json” \ -d ‘{…

  • Linkerd Ultralight Service Mesh: mTLS

    💡 Linkerd Ultralight Service Mesh: mTLS — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Linkerd Ultralight Service Mesh: mTLS. Proxy 주입 방법 Automatic Proxy Injection inject Adding your services to Linkerd Injection (regeneration) through automatic generation of yaml txt Copy kubectl get -n $namespace deploy -o yaml | linkerd inject…

  • openfortivpn CLI: Fortinet SSL-VPN Tunnel

    💡 openfortivpn CLI: Fortinet SSL-VPN Tunnel — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for openfortivpn CLI: Fortinet SSL-VPN Tunnel. 🔗 https://github.com/adrienverge/openfortivpn bash Copy # 패키지 설치 brew install openfortivpn # 계정정보를 이용하여 실행 sudo openfortivpn {{ 원격 게이트웨이 }}:{{ 포트 }} \ –username={{ 아이디 }} \ –password={{ 패스워드 }} #…

  • Kubelet Daemon Ops: Resource Reservation

    💡 Kubelet Daemon Ops: Resource Reservation — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Kubelet Daemon Ops: Resource Reservation. Configurations Apply max-pod-pids, podPidsLimit Simultaneous operation of 3 worker nodes Recommended method: Modify config.yaml (based on Kubeadm) /etc/kubernetes/kubelet-config.yaml (if not present, then) /var/lib/kubelet/config.yaml How to edit: 1. Make sure the file…

  • Ubuntu Package Lock (dpkg/apt lock) Release

    💡 Ubuntu Package Lock (dpkg/apt lock) Release — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Ubuntu Package Lock (dpkg/apt lock) Release. If ssh login is not possible as root vi /etc/ssh/sshd_config bash Copy … PermitRootLogin yes #if no … Or passwd may not be set. Internet connection problem References and…

  • MicroK8s Lightweight K8s: Cert Renewal

    💡 MicroK8s Lightweight K8s: Cert Renewal — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for MicroK8s Lightweight K8s: Cert Renewal. DIRs certs (cluster certificates) /var/snap/microk8s/current/certs/ config (kubeconfig, etc.) /var/snap/microk8s/current/credentials/ Features Apply after adding SAN to CA certificate bash Copy # 인증서 템플릿 오픈 후 도메인 또는 IP 추가 sudo vi /var/snap/microk8s/current/certs/csr.conf.template…

  • HashiCorp Vault Helm Setup & Secret Injector

    💡 HashiCorp Vault Helm Setup & Secret Injector — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for HashiCorp Vault Helm Setup & Secret Injector. Installation bash Copy helm repo add hashicorp https://helm.releases.hashicorp.com helm install -n vault hashicorp/vault Unseal bash Copy k exec -it -n vault vault-0 — vault operator init >>>…

  • Open Policy Agent (OPA/Gatekeeper) K8s

    💡 Open Policy Agent (OPA/Gatekeeper) K8s — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Open Policy Agent (OPA/Gatekeeper) K8s. Language Rego Kubernetes Setup Installation Check Gatekeeper resource bash Copy export factor=gatekeeper kubectl get $(kubectl api-resources -o name | grep $factor | sed -z ‘s/[\n\r]/,/g’ | sed ‘s/.$//g’) -A

  • Prometheus ServiceMonitor (smon.yaml)

    💡 Prometheus ServiceMonitor (smon.yaml) — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Prometheus ServiceMonitor (smon.yaml). bash Copy apiVersion: monitoring.coreos.com/v1 kind: ServiceMonitor metadata: name: jaeger-operator namespace: istio-system labels: prometheus: kube-prometheus-stack-prometheus spec: endpoints: – honorLabels: false path: /metrics port: metrics namespaceSelector: matchNames: – istio-system selector: matchLabels: app.kubernetes.io/name: jaeger-operator Prometheus ← Monitor resource…