kubernetes elasticsearch2.4 集群安装

一、制作docker镜像：

Dockerfile文件：

FROM alpine:latest
MAINTAINER chengcuichao
RUN apk update && apk add openjdk8 shadow sudo
RUN wget https://download.elastic.co/elasticsearch/release/org/elasticsearch/distribution/tar/elasticsearch/2.4.6/elasticsearch-2.4.6.tar.gz
RUN tar zxvf elasticsearch-2.4.6.tar.gz -C /usr/local/ && rm -f elasticsearch-2.4.6.tar.gz && /usr/local/elasticsearch-2.4.6/bin/plugin install mobz/elasticsearch-head
RUN useradd elastic && chown -R elastic:elastic /usr/local/elasticsearch-2.4.6

COPY ./run.sh  /root/
RUN chmod +x /root/run.sh

CMD /root/run.sh

run.sh文件：

#!/bin/sh
sed -i "s/node.name: node-1/node.name: $HOSTNAME/g" /usr/local/elasticsearch-2.4.6/config/elasticsearch.yml
sudo -H -u elastic sh /usr/local/elasticsearch-2.4.6/bin/elasticsearch

上传镜像：

docker build -t elastic:2.4
docker tag elastic:1 192.168.78.4/es/elasticsearch:2.4.6
docker push 192.168.78.4/es/elasticsearch:2.4.6

二、在kubernetes上创建：

创建配置文件：

# ======================== Elasticsearch Configuration =========================
#
# NOTE: Elasticsearch comes with reasonable defaults for most settings.
#       Before you set out to tweak and tune the configuration, make sure you
#       understand what are you trying to accomplish and the consequences.
#
# The primary way of configuring a node is via this file. This template lists
# the most important settings you may want to configure for a production cluster.
#
# Please see the documentation for further information on configuration options:
# <http://www.elastic.co/guide/en/elasticsearch/reference/current/setup-configuration.html>
#
# ---------------------------------- Cluster -----------------------------------
#
# Use a descriptive name for your cluster:
#
cluster.name: my-application
#
# ------------------------------------ Node ------------------------------------
#
# Use a descriptive name for the node:
#
node.name: node-1
#
# Add custom attributes to the node:
#
# node.rack: r1
#
# ----------------------------------- Paths ------------------------------------
#
# Path to directory where to store the data (separate multiple locations by comma):
#
# path.data: /path/to/data
#
# Path to log files:
#
# path.logs: /path/to/logs
#
# ----------------------------------- Memory -----------------------------------
#
# Lock the memory on startup:
#
# bootstrap.memory_lock: true
#
# Make sure that the `ES_HEAP_SIZE` environment variable is set to about half the memory
# available on the system and that the owner of the process is allowed to use this limit.
#
# Elasticsearch performs poorly when the system is swapping the memory.
#
# ---------------------------------- Network -----------------------------------
#
# Set the bind address to a specific IP (IPv4 or IPv6):
#
network.host: 0.0.0.0
#
# Set a custom port for HTTP:
#
http.port: 9200
#
# For more information, see the documentation at:
# <http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-network.html>
#
# --------------------------------- Discovery ----------------------------------
#
# Pass an initial list of hosts to perform discovery when new node is started:
# The default list of hosts is ["127.0.0.1", "[::1]"]
#
discovery.zen.ping.unicast.hosts: ["es-service"]
#
# Prevent the "split brain" by configuring the majority of nodes (total number of nodes / 2 + 1):
#
discovery.zen.minimum_master_nodes: 2
#
# For more information, see the documentation at:
# <http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-discovery.html>
#
# ---------------------------------- Gateway -----------------------------------
#
# Block initial recovery after a full cluster restart until N nodes are started:
#
# gateway.recover_after_nodes: 3
#
# For more information, see the documentation at:
# <http://www.elastic.co/guide/en/elasticsearch/reference/current/modules-gateway.html>
#
# ---------------------------------- Various -----------------------------------
#
# Disable starting multiple nodes on a single system:
#
# node.max_local_storage_nodes: 1
#
# Require explicit names when deleting indices:
#
# action.destructive_requires_name: true                                                         

elasticsearch.yml

# you can override this using by setting a system property, for example -Des.logger.level=DEBUG
es.logger.level: INFO
rootLogger: ${es.logger.level}, console, file
logger:
  # log action execution errors for easier debugging
  action: DEBUG

  # deprecation logging, turn to DEBUG to see them
  deprecation: INFO, deprecation_log_file

  # reduce the logging for aws, too much is logged under the default INFO
  com.amazonaws: WARN
  # aws will try to do some sketchy JMX stuff, but its not needed.
  com.amazonaws.jmx.SdkMBeanRegistrySupport: ERROR
  com.amazonaws.metrics.AwsSdkMetrics: ERROR

  org.apache.http: INFO

  # gateway
  #gateway: DEBUG
  #index.gateway: DEBUG

  # peer shard recovery
  #indices.recovery: DEBUG

  # discovery
  #discovery: TRACE

  index.search.slowlog: TRACE, index_search_slow_log_file
  index.indexing.slowlog: TRACE, index_indexing_slow_log_file

additivity:
  index.search.slowlog: false
  index.indexing.slowlog: false
  deprecation: false

appender:
  console:
    type: console
    layout:
      type: consolePattern
      conversionPattern: "[%d{ISO8601}][%-5p][%-25c] %m%n"

  file:
    type: dailyRollingFile
    file: ${path.logs}/${cluster.name}.log
    datePattern: "'.'yyyy-MM-dd"
    layout:
      type: pattern
      conversionPattern: "[%d{ISO8601}][%-5p][%-25c] %.10000m%n"

  # Use the following log4j-extras RollingFileAppender to enable gzip compression of log files.
  # For more information see https://logging.apache.org/log4j/extras/apidocs/org/apache/log4j/rolling/RollingFileAppender.html
  #file:
    #type: extrasRollingFile
    #file: ${path.logs}/${cluster.name}.log
    #rollingPolicy: timeBased
    #rollingPolicy.FileNamePattern: ${path.logs}/${cluster.name}.log.%d{yyyy-MM-dd}.gz
    #layout:
      #type: pattern
      #conversionPattern: "[%d{ISO8601}][%-5p][%-25c] %m%n"

  deprecation_log_file:
    type: dailyRollingFile
    file: ${path.logs}/${cluster.name}_deprecation.log
    datePattern: "'.'yyyy-MM-dd"
    layout:
      type: pattern
      conversionPattern: "[%d{ISO8601}][%-5p][%-25c] %m%n"

  index_search_slow_log_file:
    type: dailyRollingFile
    file: ${path.logs}/${cluster.name}_index_search_slowlog.log
    datePattern: "'.'yyyy-MM-dd"
    layout:
      type: pattern
      conversionPattern: "[%d{ISO8601}][%-5p][%-25c] %m%n"

  index_indexing_slow_log_file:
    type: dailyRollingFile
    file: ${path.logs}/${cluster.name}_index_indexing_slowlog.log
    datePattern: "'.'yyyy-MM-dd"
    layout:
      type: pattern
      conversionPattern: "[%d{ISO8601}][%-5p][%-25c] %m%n"

logging.yml

deployment文件：

kind: Service
apiVersion: v1
metadata:
  labels:
    elastic-app: elasticsearch
  name: es-service
spec:
  ports:
    - name: business
      port: 9200
      targetPort: 9200
    - name: sync
      port: 9300
      targetPort: 9300
  selector:
    app: elasticsearch
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: elasticsearch2.4
  labels:
    app: elasticsearch
spec:
  replicas: 3
  selector:
    matchLabels:
      app: elasticsearch
  template:
    metadata:
      labels:
        app: elasticsearch
    spec:
        containers:
        - name: es
          image: 192.168.78.4/es/elasticsearch:2.4.6
          volumeMounts:
          - name: elasticsearch-yml
            mountPath: /usr/local/elasticsearch-2.4.6/config/
          env:
          - name: NODE_NAME
            valueFrom:
              fieldRef:
                fieldPath: spec.nodeName
          ports:
          - containerPort: 9200
          - containerPort: 9300
        volumes:
        - name: elasticsearch-yml
          configMap:
            name: esconfig
        imagePullSecrets:
        - name: regsecret