StatefulSet elasticsearch
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: elasticsearch
labels:
service: elasticsearch
spec:
serviceName: elasticsearch
replicas: 1
selector:
matchLabels:
service: elasticsearch
template:
metadata:
labels:
service: elasticsearch
spec:
terminationGracePeriodSeconds: 300
initContainers:
# NOTE:
# This is to fix the permission on the volume
# By default elasticsearch container is not run as
# non root user.
# https://www.elastic.co/guide/en/elasticsearch/reference/current/docker.html#_notes_for_production_use_and_defaults
- name: fix-the-volume-permission
image: busybox
imagePullPolicy: IfNotPresent
command:
- sh
- -c
- chown -R 1000:1000 /usr/share/elasticsearch/data
securityContext:
privileged: true
volumeMounts:
- name: data
mountPath: /usr/share/elasticsearch/data
# NOTE:
# To increase the default vm.max_map_count to 262144
# https://www.elastic.co/guide/en/elasticsearch/reference/current/docker.html#docker-cli-run-prod-mode
- name: increase-the-vm-max-map-count
image: busybox
imagePullPolicy: IfNotPresent
command:
- sysctl
- -w
- vm.max_map_count=262144
securityContext:
privileged: true
# To increase the ulimit
# https://www.elastic.co/guide/en/elasticsearch/reference/current/docker.html#_notes_for_production_use_and_defaults
- name: increase-the-ulimit
image: busybox
imagePullPolicy: IfNotPresent
command:
- sh
- -c
- ulimit -n 65536
securityContext:
privileged: true
containers:
- name: elasticsearch
#image: docker.elastic.co/elasticsearch/elasticsearch-oss:6.3.2
image: registry.cn-hangzhou.aliyuncs.com/sre_pub/elasticsearch-oss:6.3.2
imagePullPolicy: IfNotPresent
ports:
- containerPort: 9200
name: http
- containerPort: 9300
name: tcp
# NOTE: you can increase this resources
resources:
requests:
memory: 4Gi
limits:
memory: 4Gi
env:
# NOTE: the cluster name; update this
- name: cluster.name
value: elasticsearch-cluster
- name: node.name
valueFrom:
fieldRef:
fieldPath: metadata.name
# NOTE: This will tell the elasticsearch node where to connect to other nodes to form a cluster
- name: discovery.zen.ping.unicast.hosts
value: elasticsearch:9300
# NOTE: You can increase the heap size
- name: ES_JAVA_OPTS
value: -Xms3g -Xmx3g
volumeMounts:
- name: data
mountPath: /usr/share/elasticsearch/data
volumeClaimTemplates:
- metadata:
name: data
spec:
accessModes:
- ReadWriteOnce
storageClassName: nfs
resources:
requests:
storage: 50Gi
svc elasticsearch
apiVersion: v1
kind: Service
metadata:
name: elasticsearch
namespace: skywalking
labels:
service: elasticsearch
spec:
clusterIP: None
ports:
- port: 9200
name: serving
- port: 9300
name: node-to-node
selector:
service: elasticsearch
