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  • Kubernetes cluster의 Applications tab > Elastic Stack 설치

설치 전 환경 설정

PersistentVolumeClaim 생성

  • pvc.yaml 파일 생성 (storageClass는 prometheus 설치시 생성한 sc 사용)

    $ vi pvc.yaml

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: elastic-stack-elasticsearch-master-elastic-stack-elasticsearch-master-0
  namespace: "gitlab-managed-apps"
spec:
  storageClassName: "managed-nfs-storage"
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 10Gi
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: elastic-stack-elasticsearch-master-elastic-stack-elasticsearch-master-1
  namespace: "gitlab-managed-apps"
spec:
  storageClassName: "managed-nfs-storage"
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 10Gi
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: elastic-stack-elasticsearch-master-elastic-stack-elasticsearch-master-2
  namespace: "gitlab-managed-apps"
spec:
  storageClassName: "managed-nfs-storage"
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 10Gi

  • yaml 배포
    $ kubectl create -f pvc.yaml

  • persistentVolume 및 persistentVolumeClaim 생성 확인

    $ kubectl get pv,pvc -A
NAME                                                        CAPACITY   ACCESS MODES   RECLAIM POLICY   STATUS   CLAIM                                                                                         STORAGECLASS          REASON   AGE
persistentvolume/pvc-67be328f-225f-4216-b883-25d94df31984   20Gi       RWO            Retain           Bound    gitlab-managed-apps/prometheus-alertmanager                                                   managed-nfs-storage            22h
persistentvolume/pvc-958d7e87-520d-414c-8e49-3281ad4168ab   10Gi       RWO            Retain           Bound    gitlab-managed-apps/elastic-stack-elasticsearch-master-elastic-stack-elasticsearch-master-0   managed-nfs-storage            40m
persistentvolume/pvc-a1f18625-9670-4f06-94fb-a849ccc6748d   10Gi       RWO            Retain           Bound    gitlab-managed-apps/elastic-stack-elasticsearch-master-elastic-stack-elasticsearch-master-1   managed-nfs-storage            40m
persistentvolume/pvc-bb6006be-0f4a-44f5-b8ab-2c9754ccb40e   20Gi       RWO            Retain           Bound    gitlab-managed-apps/prometheus-prometheus-server                                              managed-nfs-storage            22h
persistentvolume/pvc-f47cc89f-5b41-469e-b4af-6744b79253d0   10Gi       RWO            Retain           Bound    gitlab-managed-apps/elastic-stack-elasticsearch-master-elastic-stack-elasticsearch-master-2   managed-nfs-storage            40m

NAMESPACE             NAME                                                                                            STATUS   VOLUME                                     CAPACITY   ACCESS MODES   STORAGECLASS          AGE
gitlab-managed-apps   persistentvolumeclaim/elastic-stack-elasticsearch-master-elastic-stack-elasticsearch-master-0   Bound    pvc-958d7e87-520d-414c-8e49-3281ad4168ab   10Gi       RWO            managed-nfs-storage   40m
gitlab-managed-apps   persistentvolumeclaim/elastic-stack-elasticsearch-master-elastic-stack-elasticsearch-master-1   Bound    pvc-a1f18625-9670-4f06-94fb-a849ccc6748d   10Gi       RWO            managed-nfs-storage   40m
gitlab-managed-apps   persistentvolumeclaim/elastic-stack-elasticsearch-master-elastic-stack-elasticsearch-master-2   Bound    pvc-f47cc89f-5b41-469e-b4af-6744b79253d0   10Gi       RWO            managed-nfs-storage   40m
gitlab-managed-apps   persistentvolumeclaim/prometheus-alertmanager                                                   Bound    pvc-67be328f-225f-4216-b883-25d94df31984   20Gi       RWO            managed-nfs-storage   22h
gitlab-managed-apps   persistentvolumeclaim/prometheus-prometheus-server                                              Bound    pvc-bb6006be-0f4a-44f5-b8ab-2c9754ccb40e   20Gi       RWO            managed-nfs-storage   22h

Master node taint 수정

  • 마스터 노드 taint 확인

    $ kubectl describe node twoseed-laptop | grep Taints
Taints:             node-role.kubernetes.io=master:NoSchedule

  • taint 설정 해제

    $  kubectl taint nodes twoseed-laptop node-role.kubernetes.io=master:NoSchedule-
node/twoseed-laptop untainted

Prometheus 설치 확인

  • Kubernetes cluster의 Applications tab 확인

  • 마스터 노드 터미널에서 Pod 확인

$ kubectl get pod -o wide -n gitlab-managed-apps
NAME                                                   READY   STATUS    RESTARTS   AGE    IP            NODE             NOMINATED NODE   READINESS GATES
certmanager-cainjector-8546f8c47c-qzsnp                1/1     Running   7          2d2h   10.244.1.11   twoseed-server   <none>           <none>
certmanager-cert-manager-7558d9f5c5-qsms9              1/1     Running   1          2d2h   10.244.1.13   twoseed-server   <none>           <none>
certmanager-cert-manager-webhook-69596d6cb-pt8dv       1/1     Running   0          2d2h   10.244.1.12   twoseed-server   <none>           <none>
elastic-stack-elasticsearch-master-0                   1/1     Running   0          11m    10.244.1.94   twoseed-server   <none>           <none>
elastic-stack-elasticsearch-master-1                   1/1     Running   0          11m    10.244.2.48   twoseed-centos   <none>           <none>
elastic-stack-elasticsearch-master-2                   1/1     Running   0          11m    10.244.0.15   twoseed-laptop   <none>           <none>
elastic-stack-filebeat-4qnfz                           1/1     Running   0          11m    10.244.2.49   twoseed-centos   <none>           <none>
elastic-stack-filebeat-nzlmv                           1/1     Running   0          11m    10.244.0.14   twoseed-laptop   <none>           <none>
elastic-stack-filebeat-xqmrh                           1/1     Running   0          11m    10.244.1.95   twoseed-server   <none>           <none>
ingress-nginx-ingress-controller-75686bdf76-85kvx      2/2     Running   0          17m    10.244.1.92   twoseed-server   <none>           <none>
ingress-nginx-ingress-default-backend-c9b59c85-p8swd   1/1     Running   0          17m    10.244.1.91   twoseed-server   <none>           <none>
prometheus-alertmanager-58b88c665b-b7sqt               2/2     Running   0          22h    10.244.2.31   twoseed-centos   <none>           <none>
prometheus-kube-state-metrics-f795f46c-zsph5           1/1     Running   0          22h    10.244.2.30   twoseed-centos   <none>           <none>
prometheus-prometheus-server-84b688d6b4-qc7b4          2/2     Running   0          22h    10.244.1.40   twoseed-server   <none>           <none>
runner-gitlab-runner-5b9967b65d-blwsk                  1/1     Running   0          26h    10.244.2.23   twoseed-centos   <none>           <none>
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