Docker-compose 建立ELK集群的实现方法
人气:0全部编排文件和配置文件可以访问我的 Github ,大家只要修改配置文件中的路径即可快速搭建一个3实例的ES集群和一个Kibana实例。
规划
计划创建3个ES实例组成一个集群,同时创建一个Kibana实例连接该集群。每个ES实例使用本地配置文件,方便配置文件的保存和版本管理。Kibana的配置文件也放在本地,通过文件映射的方式挂载到容器内。
总的目录结构如下:
$ tree . ├── docker-compose.yml ├── kibana.yml ├── node1 │ └── es1.yml ├── node2 │ └── es2.yml └── node3 └── es3.yml 3 directories, 5 files
编排文件
主要的编排文件是 docker-compose.yml
version: "2.1" services: es-node1: image: docker.elastic.co/elasticsearch/elasticsearch:6.7.0 hostname: es-node1 expose: #不会将端口暴露给容器外应用 - "9001" ports: #将端口暴露到宿主机中 - "9200:9200" - "9300:9300" volumes: - ~/Projects/sh-valley/docker-conf/elasticstack/cluster/node1/es1.yml:/usr/share/elasticsearch/config/elasticsearch.yml environment: - cluster.name=es-cluster - bootstrap.memory_lock=true - "ES_JAVA_OPTS=-Xms256m -Xmx256m" ulimits: memlock: soft: -1 hard: -1 networks: es-cluster-network: ipv4_address: 172.21.0.10 es-node2: image: docker.elastic.co/elasticsearch/elasticsearch:6.7.0 hostname: es-node2 expose: #不会将端口暴露给容器外应用 - "9002" ports: #将端口暴露到宿主机中 - "9201:9201" - "9301:9301" volumes: - ~/Projects/sh-valley/docker-conf/elasticstack/cluster/node2/es2.yml:/usr/share/elasticsearch/config/elasticsearch.yml environment: - cluster.name=es-cluster - bootstrap.memory_lock=true - "ES_JAVA_OPTS=-Xms256m -Xmx256m" ulimits: memlock: soft: -1 hard: -1 networks: es-cluster-network: ipv4_address: 172.21.0.11 es-node3: image: docker.elastic.co/elasticsearch/elasticsearch:6.7.0 hostname: es-node3 expose: #不会将端口暴露给容器外应用 - "9003" ports: #将端口暴露到宿主机中 - "9202:9202" - "9302:9302" volumes: - ~/Projects/sh-valley/docker-conf/elasticstack/cluster/node3/es3.yml:/usr/share/elasticsearch/config/elasticsearch.yml environment: - cluster.name=es-cluster - bootstrap.memory_lock=true - "ES_JAVA_OPTS=-Xms256m -Xmx256m" ulimits: memlock: soft: -1 hard: -1 networks: es-cluster-network: ipv4_address: 172.21.0.12 kibana: image: docker.elastic.co/kibana/kibana:6.7.0 ports: - "5601:5601" volumes: - ~/Projects/sh-valley/docker-conf/elasticstack/cluster/kibana.yml:/usr/share/kibana/config/kibana.yml environment: - ELASTICSEARCH_URL=http://es-node1:9200 networks: - es-cluster-network networks: es-cluster-network: driver: bridge ipam: driver: default config: - subnet: 172.21.0.0/16 gateway: 172.21.0.1
ES配置文件只选取了一个示例如下:
cluster.name: elasticsearch-cluster node.name: es-node1 network.bind_host: 0.0.0.0 network.publish_host: 172.21.0.10 http.port: 9200 transport.tcp.port: 9300 http.cors.enabled: true http.cors.allow-origin: "*" node.master: true node.data: true discovery.zen.ping.unicast.hosts: ["172.21.0.10:9300","172.21.0.11:9301","172.21.0.12:9302"] discovery.zen.minimum_master_nodes: 2
Kibana的配置文件如下
server.name: kibana server.host: "0" elasticsearch.hosts: [ "http://es-node1:9200", "http://es-node2:9201", "http://es-node3:9202" ] xpack.monitoring.ui.container.elasticsearch.enabled: false
启动命令
配置文件准备好之后,就可以启动集群了
$ docker-compose up -d
启动过程可能会比较慢,通过命令行可以看到集群节点
$ curl http://localhost:9200/_cat/nodes 172.21.0.12 51 96 29 6.53 6.43 3.72 md - es-node3 172.21.0.11 47 96 30 6.53 6.43 3.72 mdi - es-node2 172.21.0.10 49 96 30 6.53 6.43 3.72 mdi * es-node1
后续使用过程中可以通过 docker-compose 命令启动、停止服务,如果不想保留相关的实例,可以使用 docker-compose down 关闭并删除容器。
参考资料
elasticsearch document
docker-compose自定义网络,固定容器ip地址
docker-compose ports和expose的区别
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