介绍
Kompose 是什么？它是个转换工具，可将 compose（即 Docker Compose）所组装的所有内容 转换成容器编排器（Kubernetes 或 OpenShift）可识别的形式。
安装
# Linux
curl -L https://github.com/kubernetes/kompose/releases/download/v1.24.0/kompose-linux-amd64 -o kompose
# macOS
curl -L https://github.com/kubernetes/kompose/releases/download/v1.24.0/kompose-darwin-amd64 -o kompose
# Windows
curl -L https://github.com/kubernetes/kompose/releases/download/v1.24.0/kompose-windows-amd64.exe -o kompose.exe
chmod +x kompose
sudo mv ./kompose /usr/local/bin/kompose
docker-compose部署elasticsearch
docker-compose文件目录结构如下
├── docker-compose-elasticsearch.yml
└── elasticsearch
├── config
│ ├── elasticeearch.yml
│ └── jvm.options
├── data
├── kibana
│ └── config
│ └── kibana.yml
└── logs
docmpose文件如下
version: '3'
# 网桥es -> 方便相互通讯
networks:
es:
services:
elasticsearch:
image: registry.cn-hangzhou.aliyuncs.com/zhengqing/elasticsearch:7.14.1 # 原镜像`elasticsearch:7.14.1`
container_name: elasticsearch # 容器名为'elasticsearch'
restart: unless-stopped # 指定容器退出后的重启策略为始终重启，但是不考虑在Docker守护进程启动时就已经停止了的容器
volumes: # 数据卷挂载路径设置,将本机目录映射到容器目录
- "./elasticsearch/data:/usr/share/elasticsearch/data"
- "./elasticsearch/logs:/usr/share/elasticsearch/logs"
- "./elasticsearch/config:/usr/share/elasticsearch/config"
# - "./elasticsearch/config/jvm.options:/usr/share/elasticsearch/config/jvm.options"
#- "./elasticsearch/plugins/ik:/usr/share/elasticsearch/plugins/ik" # IK中文分词插件
environment: # 设置环境变量,相当于docker run命令中的-e
TZ: Asia/Shanghai
LANG: en_US.UTF-8
TAKE_FILE_OWNERSHIP: "true" # 权限
discovery.type: single-node
ES_JAVA_OPTS: "-Xmx512m -Xms512m"
ELASTIC_PASSWORD: "123456" # elastic账号密码
ports:
- "9200:9200"
- "9300:9300"
networks:
- es
kibana:
image: registry.cn-hangzhou.aliyuncs.com/zhengqing/kibana:7.14.1 # 原镜像`kibana:7.14.1`
container_name: kibana
restart: unless-stopped
volumes:
- ./elasticsearch/kibana/config/kibana.yml:/usr/share/kibana/config/kibana.yml
ports:
- "5601:5601"
depends_on:
- elasticsearch
links:
- elasticsearch
networks:
- es
config/elatiscsearch,yml文件
cluster.name: "docker-cluster"
network.host: 0.0.0.0
http.port: 9200
# 开启es跨域
http.cors.enabled: true
http.cors.allow-origin: "*"
http.cors.allow-headers: Authorization
# 开启安全控制
xpack.security.enabled: true
xpack.security.transport.ssl.enabled: trueconfig/jvm.options文件
## JVM configuration
################################################################
## IMPORTANT: JVM heap size
################################################################
##
## You should always set the min and max JVM heap
## size to the same value. For example, to set
## the heap to 4 GB, set:
##
## -Xms4g
## -Xmx4g
##
## See https://www.elastic.co/guide/en/elasticsearch/reference/current/heap-size.html
## for more information
##
################################################################
# Xms represents the initial size of total heap space
# Xmx represents the maximum size of total heap space
-Xms1g
-Xmx1g
################################################################
## Expert settings
################################################################
##
## All settings below this section are considered
## expert settings. Don't tamper with them unless
## you understand what you are doing
##
################################################################
## GC configuration
8-13:-XX:+UseConcMarkSweepGC
8-13:-XX:CMSInitiatingOccupancyFraction=75
8-13:-XX:+UseCMSInitiatingOccupancyOnly
## G1GC Configuration
# NOTE: G1 GC is only supported on JDK version 10 or later
# to use G1GC, uncomment the next two lines and update the version on the
# following three lines to your version of the JDK
# 10-13:-XX:-UseConcMarkSweepGC
# 10-13:-XX:-UseCMSInitiatingOccupancyOnly
14-:-XX:+UseG1GC
14-:-XX:G1ReservePercent=25
14-:-XX:InitiatingHeapOccupancyPercent=30
## JVM temporary directory
-Djava.io.tmpdir=${ES_TMPDIR}
## heap dumps
# generate a heap dump when an allocation from the Java heap fails
# heap dumps are created in the working directory of the JVM
-XX:+HeapDumpOnOutOfMemoryError
# specify an alternative path for heap dumps; ensure the directory exists and
# has sufficient space
-XX:HeapDumpPath=data
# specify an alternative path for JVM fatal error logs
-XX:ErrorFile=logs/hs_err_pid%p.log
## JDK 8 GC logging
8:-XX:+PrintGCDetails
8:-XX:+PrintGCDateStamps
8:-XX:+PrintTenuringDistribution
8:-XX:+PrintGCApplicationStoppedTime
8:-Xloggc:logs/gc.log
8:-XX:+UseGCLogFileRotation
8:-XX:NumberOfGCLogFiles=32
8:-XX:GCLogFileSize=64m
# JDK 9+ GC logging
9-:-Xlog:gc*,gc+age=trace,safepoint:file=logs/gc.log:utctime,pid,tags:filecount=32,filesize=64m
/kibana/config/kibana.yml配置文件
server.name: kibana
server.host: "0.0.0.0"
server.publicBaseUrl: "http://kibana:5601" # 这里地址改为你访问kibana的地址，不能以 / 结尾
elasticsearch.hosts: [ "http://elasticsearch:9200" ] # http://www.zhengqingya.com:9200 TODO 修改为自己的ip
xpack.monitoring.ui.container.elasticsearch.enabled: true
elasticsearch.username: "elastic" # es账号
elasticsearch.password: "123456" # es密码
i18n.locale: zh-CN # 中文启动查看
#启动
docker-compose -f docker-compose-elasticsearch.yml -p elasticsearch up -d
#查看
docker-compose -f docker-compose-elasticsearch.yml ps
- ES访问地址：ip地址:9200 默认账号密码：elastic/123456
- kibana访问地址：ip地址:5601/app/dev_tools#/console 默认账号密码：elastic/123456
修改密码
# 进入容器
docker exec -it elasticsearch /bin/bash
# 设置密码-随机生成密码
# elasticsearch-setup-passwords auto
# 设置密码-手动设置密码
elasticsearch-setup-passwords interactive
# 访问
curl 127.0.0.1:9200 -u elastic:123456Kompose转换
按照如下进行转换
kompose convert -f kompose convert -f docker-compose-elasticsearch.yml 
对比生成的k8s资源文件
- 每个 docker-compose 容器，会生成为一个 deployment，并为你自动转换好 label 和 env 等字段
- Docker compose 的 volumes 字段，会转换为 PVC
如果pvc存储不够，可以后期自己手动调整
执行转换，应用,-n对应要部署的命名空间
kubectl apply -f elasticsearch-claim1-persistentvolumeclaim.yaml -n n9e
kubectl apply -f elasticsearch-cm2-configmap.yaml -n n9e
kubectl apply -f elasticsearch-deployment.yaml -n n9e
kubectl apply -f elasticsearch-service.yaml -n n9e
kubectl apply -f kibana-cm0-configmap.yaml -n n9e
kubectl apply -f kibana-deployment.yaml -n n9e
kubectl apply -f kibana-service.yaml -n n9e
#查看
kubectl get deploy,cm,svc,pvc -n n9e
