ElasticsearchKubernetesCrashLoopBackOff

我正在嘗試將 ES 部署到 kubernetes，我在應用到 kube 之前做了這些步驟

1. 在我的本地機器上進行 Docker 化

docker run -d --net devnet \
--name my-elastic \
--env ES_JAVA_OPTS="-Xms512m -Xmx512m" \
--env ES_PROTOCOL="http" \
--env discovery.type=single-node \
--env xpack.security.enabled=false \
--env ELASTIC_APM_VERIFY_SERVER_CERT=false \
--env XPACK_LICENSE_SELF_GENERATED_TYPE="basic" \
-p 9200:9200 -p 9300:9300 -it asia.gcr.io/my-project/elasticsearch:latest

• 我使用 JVM 堆大小 512m，因為它不用于生產
• 我禁用驗證證書和 xpack 安全性并使用http協議，因為仍在我的集群中嘗試非零信任
• 在我當地運行良好

2. 我已經為資料創建了 GCE 永久磁盤
3. 我已創建卷并宣告了永久磁盤卷

apiVersion: v1
kind: PersistentVolume
metadata:
  name: my-elasticsearch-pv
spec:
  storageClassName: ""
  capacity:
    storage: 10G
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Retain
  claimRef:
    namespace: default
    name: my-elasticsearch-pvc
  gcePersistentDisk:
    pdName: es-disk
    fsType: ext4
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: my-elasticsearch-pvc
spec:
  storageClassName: ""
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 10G

4. 我已經創建并應用了服務

apiVersion: v1
kind: Service
metadata:
  name: my-elastic
spec:
  ports:
  - name: http-port
    port: 9200
    targetPort: es-port
  selector:
    app: my-elastic
  type: ClusterIP

5. 創建部署檔案并應用此設定

apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-elastic
spec:
  replicas: 1
  selector:
    matchLabels:
      app: my-elastic
  template:
    metadata:
      labels:
        app: my-elastic
    spec:
      containers:
      - name: my-elastic
        resources:
            requests:
                memory: 1Gi
        image: asia.gcr.io/my-project/elasticsearch:latest
        env:
        - name: ES_JAVA_OPTS
          value: -Xms512m -Xmx512m
        - name: ES_PROTOCOL
          value: http
        - name: discovery.type
          value: single-node
        - name: XPACK_LICENSE_SELF_GENERATED_TYPE
          value: basic
        - name: xpack.security.enabled
          value: 'false'
        - name: xpack.monitoring.enabled
          value: 'false'
        ports:
        - name: es-port
          containerPort: 9200
        volumeMounts:
        - name: my-elasticsearch-data
          mountPath: /usr/share/elasticsearch/data
      volumes:
      - name: my-elasticsearch-data
        persistentVolumeClaim:
          claimName: my-elasticsearch-pvc

我CrashLoopBackOff在應用部署后得到了，這是我的集群的情況。我在配置上遺漏了什么嗎？

這是日志

"log.level":"ERROR", "message":"uncaught exception in thread [main]", "ecs.version": "1.2.0","service.name":"ES_ECS","event.dataset":"elasticsearch.server","process.thread.name":"main","log.logger":"org.elasticsearch.bootstrap.ElasticsearchUncaughtExceptionHandler","elasticsearch.node.name":"alodokter-emr-es-5cbd4cd95-bfvld","elasticsearch.cluster.name":"docker-cluster","error.type":"org.elasticsearch.bootstrap.StartupException","error.message":"java.lang.IllegalStateException: failed to obtain node locks, tried [/usr/share/elasticsearch/data]; maybe these locations are not writable or multiple nodes were started on the same data path?"

uj5u.com熱心網友回復：

從initContainer 使 Elasticsearch (UID: 1000) 成為資料目錄/usr/share/elasticsearch/data的所有者。

$ chown -R 1000:1000 /usr/share/elasticsearch/data

apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-elastic
spec:
  replicas: 1
  selector:
    matchLabels:
      app: my-elastic
  template:
    metadata:
      labels:
        app: my-elastic
    spec:
      initContainers:
      - name: busybox
        image: busybox:1.28
        command: ['sh', '-c', "chown -R 1000:1000 /usr/share/elasticsearch/data"]
        volumeMounts:
        - name: my-elasticsearch-data
          mountPath: /usr/share/elasticsearch/data
      containers:
      - name: my-elastic
        resources:
            requests:
                memory: 1Gi
        image: asia.gcr.io/my-project/elasticsearch:latest
        env:
        - name: ES_JAVA_OPTS
          value: -Xms512m -Xmx512m
        - name: ES_PROTOCOL
          value: http
        - name: discovery.type
          value: single-node
        - name: XPACK_LICENSE_SELF_GENERATED_TYPE
          value: basic
        - name: xpack.security.enabled
          value: 'false'
        - name: xpack.monitoring.enabled
          value: 'false'
        ports:
        - name: es-port
          containerPort: 9200
        volumeMounts:
        - name: my-elasticsearch-data
          mountPath: /usr/share/elasticsearch/data
      volumes:
      - name: my-elasticsearch-data
        persistentVolumeClaim:
          claimName: my-elasticsearch-pvc

標籤：码头工人 弹性搜索 Kubernetes

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