前言

在k8s上基于ECK（2.4）部署elasticsearch，简单记录一下，主要是quickstart的快速模式下增加了nodeport端口和可以定义密码的超级管理员账号。不说废话，直接上干货。

参考链接
ECK官网链接: https://www.elastic.co/cn/elastic-cloud-kubernetes
ECK快速启动链接: https://www.elastic.co/guide/en/cloud-on-k8s/2.4/k8s-deploy-eck.html
ECK增加es集群用户链接: https://www.elastic.co/guide/en/cloud-on-k8s/2.4/k8s-users-and-roles.html

一、ECK是什么？

Elastic Cloud on Kubernetes 简化了在 Kubernetes 中运行 Elasticsearch 和 Kibana 的作业，包括设置、升级、快照、扩展、高可用性、安全性等。

二、安装ECK

1.crd.yaml

kubectl create -f https://download.elastic.co/downloads/eck/2.4.0/crds.yaml

文件中的内容比较多，我就不把内容贴进来了。无法在线使用的，可以先下载下来然后传到对应机器上

2.operator.yaml

kubectl apply -f https://download.elastic.co/downloads/eck/2.4.0/operator.yaml

三、安装es，elasticsearch-cluster.yaml

#执行
kubectl apply -f  elasticsearch-cluster.yaml
#输出
namespace/daxinxindahaohao created
elasticsearch.elasticsearch.k8s.elastic.co/quickstart created
service/quickstart-es-internal-http-nodeport created
secret/daxinxindahaohao-secret created

#创建namespace
apiVersion: v1
kind: Namespace
metadata:
  name: daxinxindahaohao

---
#快速启动es集群
apiVersion: elasticsearch.k8s.elastic.co/v1
kind: Elasticsearch
metadata:
  name: quickstart
  namespace: daxinxindahaohao
spec:
  version: 8.7.1
#增加账号信息
  auth:
    fileRealm:
    - secretName: daxinxindahaohao-secret
  nodeSets:
  - name: default
    count: 1
    config:
      node.store.allow_mmap: false

---
#增加专属的service，不修改quickstart已有的service
kind: Service
apiVersion: v1
metadata:
  name: quickstart-es-internal-http-nodeport
  namespace: daxinxindahaohao
  labels:
    common.k8s.elastic.co/type: elasticsearch
    elasticsearch.k8s.elastic.co/cluster-name: quickstart
spec:
  ports:
    - name: https
      protocol: TCP
      port: 9200
      targetPort: 9200
      nodePort: 30806
  selector:
    common.k8s.elastic.co/type: elasticsearch
    elasticsearch.k8s.elastic.co/cluster-name: quickstart
  type: NodePort
  sessionAffinity: None
  ipFamilies:
    - IPv4
  ipFamilyPolicy: SingleStack
  internalTrafficPolicy: Cluster

---
# 新增用户daxinxindahaohao，设置组为超级管理员
kind: Secret
apiVersion: v1
metadata:
  name: daxinxindahaohao-secret
  namespace: daxinxindahaohao
stringData:
#格式是 账号：密码
#可以同时增加多个用户并设置对应的组
  users: |-
    daxinxindahaohao:daxinxindahaohao
  users_roles: |-
    superuser:daxinxindahaohao

结果截图-容器组

结果截图-服务

结果截图-密钥

结果截图：登陆验证

结果截图：成功登陆

四、安装kibana

#执行
kubectl apply -f  kibana.yaml
#输出
kibana.kibana.k8s.elastic.co/quickstart created
service/quickstart-kb-http-nodeport created

# 快速启动kibana，命名空间为daxinxindahaohao
apiVersion: kibana.k8s.elastic.co/v1
kind: Kibana
metadata:
  name: quickstart
  namespace: daxinxindahaohao
spec:
  version: 8.7.1
  count: 1
  elasticsearchRef:
    name: quickstart
    namespace: daxinxindahaohao
---
# 增加oneops项目专属的service，不修改quickstart已有的service
kind: Service
apiVersion: v1
metadata:
  name: quickstart-kb-http-nodeport
  namespace: daxinxindahaohao
  labels:
    common.k8s.elastic.co/type: kibana
    kibana.k8s.elastic.co/name: quickstart
spec:
  ports:
    - name: https
      protocol: TCP
      port: 5601
      targetPort: 5601
      nodePort: 30807
  selector:
    common.k8s.elastic.co/type: kibana
    kibana.k8s.elastic.co/name: quickstart
  type: NodePort
  sessionAffinity: None
  ipFamilies:
    - IPv4
  ipFamilyPolicy: SingleStack
  internalTrafficPolicy: Cluster

执行结果-工作负载

执行结果-容器组

执行结果-服务

执行结果-登陆页面

总结

还是挺好用的，比较快捷，但是高阶功能可能要根据场景情况摸索一下。