前提创建了命名空间和nfs
# 1. elasticsearch7-svc.yml
kind: Service
apiVersion: v1
metadata:
name: elasticsearch7
namespace: logging
labels:
app: elasticsearch7
spec:
selector:
app: elasticsearch7
clusterIP: None
ports:
- port: 9200
name: rest
- port: 9300
name: inter-node
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# 2. elasticsearch7-statefulset.yml
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: es7-cluster
namespace: logging
spec:
serviceName: elasticsearch7
replicas: 3
selector:
matchLabels:
app: elasticsearch7
template:
metadata:
labels:
app: elasticsearch7
spec:
containers:
- name: elasticsearch7
image: docker.elastic.co/elasticsearch/elasticsearch:7.8.1
resources:
limits:
cpu: 1000m
requests:
cpu: 100m
ports:
- containerPort: 9200
name: rest
protocol: TCP
- containerPort: 9300
name: inter-node
protocol: TCP
volumeMounts:
- name: es7-pv-claim
mountPath: /usr/share/elasticsearch/data
env:
- name: cluster.name
value: k8s-logs
- name: node.name
valueFrom:
fieldRef:
fieldPath: metadata.name
- name: discovery.zen.minimum_master_nodes # 含义请参阅官方 Elasticsearch 文档
value: "2"
- name: discovery.seed_hosts # 含义请参阅官方 Elasticsearch 文档
value: "es7-cluster-0.elasticsearch7,es7-cluster-1.elasticsearch7,es7-cluster-2.elasticsearch7"
- name: cluster.initial_master_nodes # 初始化的 master 节点，旧版本相关配置 discovery.zen.minimum_master_nodes
value: "es7-cluster-0,es7-cluster-1,es7-cluster-2" # 含义请参阅官方 Elasticsearch 文档
- name: ES_JAVA_OPTS
value: "-Xms1g -Xmx2g" # 根据具体资源及需求调整
initContainers:
- name: fix-permissions
image: busybox
command: ["sh", "-c", "chown -R 1000:1000 /usr/share/elasticsearch/data"]
securityContext:
privileged: true
volumeMounts:
- name: es7-pv-claim
mountPath: /usr/share/elasticsearch/data
- name: increase-vm-max-map
image: busybox
command: ["sysctl", "-w", "vm.max_map_count=262144"]
securityContext:
privileged: true
- name: increase-fd-ulimit
image: busybox
command: ["sh", "-c", "ulimit -n 65536"]
volumeClaimTemplates:
- metadata:
name: es7-pv-claim
spec:
accessModes: [ "ReadWriteMany","ReadWriteOnce"]
resources:
requests:
storage: 5G
storageClassName: nfs-storage
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