Fredric News

Tag: Configuration

  • Kubelet podPidsLimit Tuning: Container PID

    💡 Kubelet podPidsLimit Tuning: Container PID — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Kubelet podPidsLimit Tuning: Container PID. Shell Summary of usage based on Pod shell Copy #!/bin/bash LOG_FILE=”/var/log/pod_pids_usage.log” KUBECONFIG_PATH=”/etc/kubernetes/admin.conf” TIMESTAMP=$(date “+%Y-%m-%d %H:%M:%S”) TMP_FILE=$(mktemp) NODES=$(kubectl –kubeconfig=$KUBECONFIG_PATH get nodes -o jsonpath='{.items[*].metadata.name}’) for NODE in $NODES; do RAW_METRICS=$(kubectl –kubeconfig=$KUBECONFIG_PATH get –raw…

  • Kubernetes kubeconfig Manifest: Clusters,

    💡 Kubernetes kubeconfig Manifest: Clusters, — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Kubernetes kubeconfig Manifest: Clusters,. shell bash Copy #!/bin/bash # `./generate_kubeconfig.sh dev 10.0.X.X mypasswd 2222 > .my.kubeconfig` contextName=$1 hostname=$2 ssh_port=${3:-22} dest_ip=$(dig $hostname +short) endpoint=”https://$dest_ip:6443″ ns=default sa=tester # ───────────────────────────────────────────── # 원격 스크립트 정의 # ───────────────────────────────────────────── remote_script=$(cat <<EOF # 1.…

  • 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 ‘{…

  • Linux resolv.conf DNS & systemd-resolved

    💡 Linux resolv.conf DNS & systemd-resolved — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Linux resolv.conf DNS & systemd-resolved. ubuntu defaults bash Copy nameserver 127.0.0.53 #로컬 DNS리졸버 사용 options edns0 trust-ad search . coredns defaults bash Copy search default.svc.cluster.local svc.cluster.local cluster.local nameserver 10.152.183.10 #coredns serviceIP options ndots:5 Manage only with…

  • Tailwind CSS Utility Classes Sheet

    💡 Tailwind CSS Utility Classes Sheet — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Tailwind CSS Utility Classes Sheet. Basic src/assets/tailwind.css css Copy @tailwind base; @tailwind components; @tailwind utilities; src/main.ts ts Copy import ‘./assets/tailwind.css’ Custom src/assets/tailwind.css css Copy @tailwind base; @tailwind components; @tailwind utilities; @layer components { .btn { @apply…

  • 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…

  • cert-manager Automated TLS Certificate

    💡 cert-manager Automated TLS Certificate — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for cert-manager Automated TLS Certificate. ca-certs.yaml yaml Copy apiVersion: cert-manager.io/v1 kind: Certificate metadata: name: my-ca-cert namespace: cert-manager spec: isCA: true # CA 인증서임을 명시 commonName: my-ca secretName: my-ca-secret issuerRef: name: my-selfsigned-ca kind: ClusterIssuer application-certs.yaml yaml Copy apiVersion: cert-manager.io/v1…

  • OpenStack Volume Snapshots: Ceph RBD Image

    💡 OpenStack Volume Snapshots: Ceph RBD Image — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for OpenStack Volume Snapshots: Ceph RBD Image. References and Guidelines (NOTE) Possible improvement: Change to for statement for cases where there are more than 2 Child, Snap, and Watchers ceph-mon01:/root/deleteImage.sh V3 bash Copy #!/bin/bash # v3.0…

  • Vue.js Options API: data, computed, watch and

    💡 Vue.js Options API: data, computed, watch and — Executive Summary Technical architectural analysis, practical configuration manifests, and deployment instructions for Vue.js Options API: data, computed, watch and. props javascript Copy <template></template> <script> import … export default { name: “Name”, props: { item: Object, viewList: Array, isRetrieving: Boolean, show: Boolean, title: String, selected: Array, required:…