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쿠버네티스 수집 서버 IP 변경

Kubernetes 모니터링 서비스를 이용하는 고객을 대상으로 수집 서버 IP 정보 변경 방법을 안내합니다. Kubernetes 모니터링을 설정한 후 특정 환경에서 수집 서버 IP 변경이 필요한 경우 다음 과정을 참고하여 변경하세요.

Yaml 파일 기준​

  1. 다음 위치에서 whatap_host 값을 변경하세요.

    • yaml 파일에서 whatap-master-agent 컨테이너 하위 env 항목 중 WHATAP_HOST 값을 61.109.237.237/61.109.238.166 로 변경하세요.

    • yaml 파일에서 whatap-node-agent 컨테이너 하위 env 항목 중 WHATAP_HOST 값을 61.109.237.237/61.109.238.166 로 변경하세요.

  2. 변경한 yaml 파일을 쿠버네티스 클러스터에 적용하세요.

    kubectl apply -f 변경한 yaml 파일명.yaml

예시​

Yaml
apiVersion: "apps/v1"
kind: "Deployment"
metadata:
  name: "whatap-master-agent"
  namespace: "whatap-monitoring"
spec:
  replicas: 1
  selector:
    matchLabels:
      name: "whatap-master-agent"
  template:
    metadata:
      labels:
        name: "whatap-master-agent"
    spec:
      containers:
      - command:
        - "/bin/entrypoint.sh"
        env:
        - name: "WHATAP_LICENSE"
          value: "x22gg93735j9v-z63jpk29lgtn68-x52sdl202an6h"
        - name: "WHATAP_HOST"
          value: "61.109.237.237/61.109.238.166"
        - name: "WHATAP_PORT"
          value: "6600"
        - name: "WHATP_MEM_LIMIT"
          valueFrom:
            resourceFieldRef:
              containerName: "whatap-master-agent"
              resource: "limits.memory"
        image: "whatap/kube_mon"
        name: "whatap-master-agent"
        ports:
        - containerPort: 6600
        resources:
          limits:
            cpu: "200m"
            memory: "350Mi"
          requests:
            cpu: "100m"
            memory: "300Mi"
        volumeMounts:
        - mountPath: "/bin/entrypoint.sh"
          name: "start-script-volume"
          readOnly: true
          subPath: "entrypoint.sh"
        - mountPath: "/whatap_conf"
          name: "whatap-config-volume"
      serviceAccount: "whatap"
      volumes:
      - configMap:
          defaultMode: 448
          name: "master-start-script"
        name: "start-script-volume"
      - emptyDir: {}
        name: "whatap-config-volume"
---
apiVersion: "apps/v1"
kind: "DaemonSet"
metadata:
  labels:
    name: "whatap-node-agent"
  name: "whatap-node-agent"
  namespace: "whatap-monitoring"
spec:
  selector:
    matchLabels:
      name: "whatap-node-agent"
  template:
    metadata:
      labels:
        name: "whatap-node-agent"
    spec:
      containers:
      - command:
        - "/data/agent/node/cadvisor_helper"
        - "-port"
        - "6801"
        env:
        - name: "NODE_NAME"
          valueFrom:
            fieldRef:
              fieldPath: "spec.nodeName"
        image: "whatap/kube_mon"
        name: "whatap-node-helper"
        ports:
        - containerPort: 6801
          name: "helperport"
        resources:
          limits:
            cpu: "200m"
            memory: "350Mi"
          requests:
            cpu: "100m"
            memory: "100Mi"
        volumeMounts:
        - mountPath: "/rootfs"
          name: "rootfs"
          readOnly: true
        - mountPath: "/sys"
          name: "hostsys"
          readOnly: true
        - mountPath: "/dev/disk"
          name: "hostdiskdevice"
          readOnly: true
        - mountPath: "/var/run/docker.sock"
          name: "dockerdomainsocket"
      - command:
        - "/bin/entrypoint.sh"
        env:
        - name: "NODE_IP"
          valueFrom:
            fieldRef:
              fieldPath: "status.hostIP"
        - name: "NODE_NAME"
          valueFrom:
            fieldRef:
              fieldPath: "spec.nodeName"
        - name: "WHATAP_LICENSE"
          value: "x22gg93735j9v-z63jpk29lgtn68-x52sdl202an6h"
        - name: "WHATAP_HOST"
          value: "61.109.237.237/61.109.238.166"
        - name: "WHATAP_PORT"
          value: "6600"
        - name: "HOST_PREFIX"
          value: "/rootfs"
        - name: "WHATP_MEM_LIMIT"
          valueFrom:
            resourceFieldRef:
              containerName: "whatap-node-agent"
              resource: "limits.memory"
        image: "whatap/kube_mon"
        name: "whatap-node-agent"
        ports:
        - containerPort: 6600
          name: "nodeport"
        resources:
          limits:
            cpu: "200m"
            memory: "350Mi"
          requests:
            cpu: "100m"
            memory: "300Mi"
        volumeMounts:
        - mountPath: "/rootfs"
          name: "rootfs"
          readOnly: true
        - mountPath: "/bin/entrypoint.sh"
          name: "start-script-volume"
          readOnly: true
          subPath: "entrypoint.sh"
        - mountPath: "/whatap_conf"
          name: "whatap-config-volume"
      initContainers:
      - command:
        - "/data/agent/tools/whatap_debugger"
        - "run"
        image: "whatap/kube_mon"
        name: "whatap-node-debug"
        volumeMounts:
        - mountPath: "/rootfs"
          name: "rootfs"
          readOnly: true
      serviceAccount: "whatap"
      tolerations:
      - effect: "NoSchedule"
        key: "node-role.kubernetes.io/master"
      - effect: "NoSchedule"
        key: "node-role.kubernetes.io/control-plane"
      volumes:
      - hostPath:
          path: "/"
        name: "rootfs"
      - hostPath:
          path: "/sys"
        name: "hostsys"
      - hostPath:
          path: "/dev/disk"
        name: "hostdiskdevice"
      - configMap:
          defaultMode: 448
          name: "node-start-script"
        name: "start-script-volume"
      - emptyDir: {}
        name: "whatap-config-volume"
      - hostPath:
          path: "/var/run/docker.sock"
        name: "dockerdomainsocket"
      - hostPath:
          path: "/var/lib/docker"
        name: "hostdocker"