k8s中部署elasticsearch6.3.2

使用官方镜像,解决部署中遇到的vm.max_map_count值问题

使用yml配置,如下

使用初始化镜像busybox,执行sysctl命令

1. apiVersion: apps/v1beta1
   kind: Deployment
   metadata:
     name: base-elasticsearch6-deployment
   spec:
     replicas: 1 # tells deployment to run 2 pods matching the template
     template: # create pods using pod definition in this template
       metadata:
         labels:
           name: base-elasticsearch6
       spec:
         initContainers:
         - name: init-sysctl
           image: busybox:1.27.2
           command:
           - sysctl
           - -w
           - vm.max_map_count=262144
           securityContext:
             privileged: true
         containers: 
         - name: web-base-elasticsearch6
           image: 你的镜像名称
           #image: elasticsearch:2.4.2
           imagePullPolicy: IfNotPresent
           resources:
             # need more cpu upon initialization, therefore burstable class
             limits:
               cpu: 1000m
             requests:
               cpu: 100m
           env: 
           - name: ES_JAVA_OPTS
             value: -Xms512m -Xmx512m
           ports: 
           - containerPort: 9200
           - containerPort: 9300
           volumeMounts:
           - name: elasticsearch
             mountPath: /mnt/search
         nodeSelector:
           elasticsearch: "base"    
         volumes:
         - name: elasticsearch
           hostPath:
             path: /mnt/search/student
   ---
   apiVersion: v1
   kind: Service
   metadata:
     name: base-elasticsearch6
     labels:
       name: base-elasticsearch6
   spec:
     type: NodePort
     ports:
     - name:  web-9200
       port: 9200
       targetPort: 9200
       protocol: TCP
     - name:  web-9300
       port: 9300
       targetPort: 9300
       protocol: TCP
     selector:
       name: base-elasticsearch6

1.