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「云原生」Elasticsearch + Kibana on k8s 讲解与实战操作

2022-10-14 08:51:03来源:今日头条

一、概述

Elasticsearch是一个基于Lucene的搜索引擎。它提供了具有HTTP Web界面和无架构JSON文档的分布式,多租户能力的全文搜索引擎。Elasticsearch是用Java开发的,根据Apache许可条款作为开源发布。

官方文档:https://www.elastic.co/guide/en/elasticsearch/reference/master/getting-started.htmlGitHub: https://github.com/elastic/elasticsearch


(相关资料图)

二、Elasticsearch 编排部署

地址:https://artifacthub.io/packages/helm/elastic/elasticsearch

1)添加源并下载编排部署包
helm repo add elastic https://helm.elastic.cohelm pull elastic/elasticsearch --version 7.17.3tar -xf elasticsearch-7.17.3.tgz
2)构建镜像

Elasticsearch 各版本下载地址:https://www.elastic.co/cn/downloads/past-releases#elasticsearch这里就不重新构建镜像了,这里是将远程的镜像推送到我们本地harbor,加速拉取镜像。

docker pull docker.elastic.co/elasticsearch/elasticsearch:7.17.3docker tag docker.elastic.co/elasticsearch/elasticsearch:7.17.3  myharbor.com/bigdata/elasticsearch:7.17.3# 上传镜像docker push myharbor.com/bigdata/elasticsearch:7.17.3# 删除镜像docker rmi myharbor.com/bigdata/elasticsearch:7.17.3crictl rmi myharbor.com/bigdata/elasticsearch:7.17.3
3)修改yaml编排elasticsearch/values.yaml
image: "myharbor.com/bigdata/elasticsearch"......### 去掉这几行volumeClaimTemplate:  accessModes: ["ReadWriteOnce"]  resources:    requests:      storage: 30Gi....persistence:  enabled: true  labels:    # Add default labels for the volumeClaimTemplate of the StatefulSet    enabled: false  annotations: {}  accessModes:    - ReadWriteOnce  size: 1Gi  storageClass: "elasticsearch-local-storage"  local:  - name: elasticsearch-0    host: "local-168-182-110"    path: "/opt/bigdata/servers/elasticsearch/data/data1"  - name: elasticsearch-1    host: "local-168-182-111"    path: "/opt/bigdata/servers/elasticsearch/data/data1"  - name: elasticsearch-2    host: "local-168-182-112"    path: "/opt/bigdata/servers/elasticsearch/data/data1"...protocol: httphttpPort: 9200transportPort: 9300service:  enabled: true  type: NodePort  nodePort: 30920  httpPortName:
elasticsearch/templates/storage-class.yaml
kind: StorageClassapiVersion: storage.k8s.io/v1metadata:  name: {{ .Values.persistence.storageClass }}provisioner: kubernetes.io/no-provisioner
elasticsearch/templates/pv.yaml

{{- range .Values.persistence.local }}---apiVersion: v1kind: PersistentVolumemetadata:  name: {{ .name }}  labels:    name: {{ .name }}spec:  storageClassName: {{ $.Values.persistence.storageClass }}  capacity:    storage: {{ $.Values.persistence.size }}  accessModes:  {{- range $.Values.persistence.accessModes }}    - {{ . | quote }}  {{- end }}  local:    path: {{ .path }}  nodeAffinity:    required:      nodeSelectorTerms:        - matchExpressions:            - key: kubernetes.io/hostname              operator: In              values:                - {{ .host }}---{{- end }}

elasticsearch/templates/statefulset.yaml

spec:  volumeClaimTemplates:    spec:# 去掉这行{{ toYaml .Values.volumeClaimTemplate | indent 6 }}# 新增以下内容:      accessModes:      {{- range .Values.persistence.accessModes }}      - {{ . | quote }}      {{- end }}      resources:        requests:          storage: {{ .Values.persistence.size | quote }}    {{- if .Values.persistence.storageClass }}    {{- if (eq "-" .Values.persistence.storageClass) }}      storageClassName: ""    {{- else }}      storageClassName: "{{ .Values.persistence.storageClass }}"    {{- end }}    {{- end }}

4)开始部署
# 先创建本地存储目录mkdir -p /opt/bigdata/servers/elasticsearch/data/data1chmod -R 777 /opt/bigdata/servers/elasticsearch/data/data1helm install my-elasticsearch ./elasticsearch -n elasticsearch --create-namespace# 查看helm get notes my-elasticsearch -n elasticsearchkubectl get pods,svc -n elasticsearch -owide

NOTES

NAME: my-elasticsearchLAST DEPLOYED: Wed Oct 12 23:47:17 2022NAMESPACE: elasticsearchSTATUS: deployedREVISION: 1NOTES:1. Watch all cluster members come up.  $ kubectl get pods --namespace=elasticsearch -l app=elasticsearch-master -w2. Test cluster health using Helm test.  $ helm --namespace=elasticsearch test my-elasticsearch
5)测试验证
://192.168.182.110:30920/curl http://192.168.182.110:30920/_cat/nodescurl http://192.168.182.110:30920/_cat/health?pretty
6)elasticsearch-head

elasticsearch-head GitHub下载地址:https://github.com/mobz/elasticsearch-headGoogle 浏览器 elasticsearch-head插件:

链接:https://pan.baidu.com/s/1kYcTjBDPmSWVzsku2hEW7w?pwd=67v4提取码:67v4

7)卸载
helm uninstall my-elasticsearch -n elasticsearchkubectl delete ns elasticsearch --forcerm -fr /opt/bigdata/servers/elasticsearch/data/data1/*ssh local-168-182-111 "rm -fr /opt/bigdata/servers/elasticsearch/data/data1/*"ssh local-168-182-112 "rm -fr /opt/bigdata/servers/elasticsearch/data/data1/*"docker rmi myharbor.com/bigdata/elasticsearch:7.17.3crictl rmi myharbor.com/bigdata/elasticsearch:7.17.3ssh local-168-182-111 "crictl rmi myharbor.com/bigdata/elasticsearch:7.17.3"ssh local-168-182-112 "crictl rmi myharbor.com/bigdata/elasticsearch:7.17.3"
三、Kibana 编排部署

地址:https://artifacthub.io/packages/helm/bitnami/kibana?modal=install

1)添加源并下载编排部署包

helm repo add bitnami https://charts.bitnami.com/bitnamihelm pull bitnami/kibana --version 10.2.6tar -xf kibana-10.2.6.tgz

2)构建镜像

这里也不重新构建镜像了,只是将镜像推送到本地harbor加速,【注意】版本号需要跟ES相对应,版本不一样,可能会存储不兼容的情况。

docker pull docker.io/bitnami/kibana:7.17.3docker tag docker.io/bitnami/kibana:7.17.3 myharbor.com/bigdata/kibana:7.17.3# 上传镜像docker push myharbor.com/bigdata/kibana:7.17.3# 删除镜像docker rmi myharbor.com/bigdata/kibana:7.17.3crictl rmi myharbor.com/bigdata/kibana:7.17.3

3)修改yaml编排kibana/values.yaml

image:  registry: myharbor.com  repository: bigdata/kibana  tag: 8.4.3-debian-11-r1...replicaCount: 1...persistence:  enabled: true  accessModes:    - ReadWriteOnce  size: 1Gi  storageClass: "kibana-local-storage"  local:  - name: kibana-0    host: "local-168-182-111"    path: "/opt/bigdata/servers/kibana/data/data1"...service:  ports:    http: 5601  type: NodePort  nodePorts:    http: "30601"...elasticsearch:  hosts:    - elasticsearch-master.elasticsearch  port: "9200"

kibana/templates/values.yaml

{{- range .Values.persistence.local }}---apiVersion: v1kind: PersistentVolumemetadata:  name: {{ .name }}  labels:    name: {{ .name }}spec:  storageClassName: {{ $.Values.persistence.storageClass }}  capacity:    storage: {{ $.Values.persistence.size }}  accessModes:  {{- range $.Values.persistence.accessModes }}    - {{ . | quote }}  {{- end }}  local:    path: {{ .path }}  nodeAffinity:    required:      nodeSelectorTerms:        - matchExpressions:            - key: kubernetes.io/hostname              operator: In              values:                - {{ .host }}---{{- end }}

kibana/templates/storage-class.yaml

kind: StorageClassapiVersion: storage.k8s.io/v1metadata:  name: {{ .Values.persistence.storageClass }}provisioner: kubernetes.io/no-provisioner

kibana/templates/pv.yaml

{{- range .Values.persistence.local }}---apiVersion: v1kind: PersistentVolumemetadata:  name: {{ .name }}  labels:    name: {{ .name }}spec:  storageClassName: {{ $.Values.persistence.storageClass }}  capacity:    storage: {{ $.Values.persistence.size }}  accessModes:  {{- range $.Values.persistence.accessModes }}    - {{ . | quote }}  {{- end }}  local:    path: {{ .path }}  nodeAffinity:    required:      nodeSelectorTerms:        - matchExpressions:            - key: kubernetes.io/hostname              operator: In              values:                - {{ .host }}---{{- end }}

4)开始部署

# 先创建本地存储目录mkdir -p /opt/bigdata/servers/kibana/data/data1chmod -R 777 /opt/bigdata/servers/kibana/data/data1helm install my-kibana ./kibana -n kibana --create-namespace# 查看helm get notes my-kibana -n kibana kubectl get pods,svc -n kibana -owide

NOTES

NAME: my-kibanaLAST DEPLOYED: Thu Oct 13 22:43:30 2022NAMESPACE: kibanaSTATUS: deployedREVISION: 1TEST SUITE: NoneNOTES:CHART NAME: kibanaCHART VERSION: 10.2.6APP VERSION: 8.4.3** Please be patient while the chart is being deployed **######################################################################################################### ERROR: You did not provide the Elasticsearch external host or port in your "helm install" call #########################################################################################################Complete your Kibana deployment by running:  helm upgrade --namespace kibana my-kibana my-repo/kibana \    --set elasticsearch.hosts[0]=YOUR_ES_HOST,elasticsearch.port=YOUR_ES_PORTReplacing "YOUR_ES_HOST" and "YOUR_ES_PORT" placeholders by the proper values of your Elasticsearch deployment.

5)测试验证

web:http://192.168.182.111:30601

6)卸载

helm uninstall my-kibana -n kibanakubectl delete ns kibana --forcessh local-168-182-111 rm -fr /opt/bigdata/servers/kibana/data/data1/*docker rmi myharbor.com/bigdata/bigdata:8.4.3-debian-11-r1crictl rmi myharbor.com/bigdata/bigdata:8.4.3-debian-11-r1

elasticsearch-on-k8s

下载地址:https://gitee.com/hadoop-bigdata/elasticsearch-on-k8skibana-on-k8s

下载地址:https://gitee.com/hadoop-bigdata/kibana-on-k8s

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