小编典典

通过Java / Spring Boot连接到Docker Elasticsearch实例

spring-boot

我正在从Docker运行Elasticsearch实例。该图像来自jHipster docker中心仓库:jhipster / jhipster-
elasticsearch /

-我使用的是图像v1.3.2,因为我需要Elasticsearch 2.4.0(以与该项目的Spring Boot版本保持一致)。

我正在使用,Logstash和Kibana图像启动ES容器docker-compose。这是启动ES容器的设置:

jhipster-elasticsearch:
    image: jhipster/jhipster-elasticsearch:v1.3.2
    ports:
        - 9400:9200
        - 9500:9300
    volumes:
       - ./log-es-config/elasticsearch_custom.yml:/usr/share/elasticsearch/config/elasticsearch.yml

因此,我将9400用于REST,并将9500用于传输通信。

这是elasticsearch_custom.yml装入ES config的内部配置:

cluster.name: "log-cluster"
node.name: "log-node"
http.host: 0.0.0.0
transport.host: 127.0.0.1
transport.tcp.port: 9500
transport.publish_port: 9500

当我启动容器时,这就是我从中得到的http://localhost:9400/_nodes

"cluster_name": "log-cluster",
  "nodes": {
    "xLsGj2DyTdCF89I7sAToVw": {
      "name": "log-node",
      "transport_address": "127.0.0.1:9500",
      "host": "127.0.0.1",
      "ip": "127.0.0.1",
      "version": "2.4.0",
      "build": "ce9f0c7",
      "http_address": "172.18.0.5:9200",
      "settings": {
        "cluster": {
          "name": "log-cluster"
        },
        ... (I can put all response if needed)

JAVA API:

现在,我尝试像这样连接到此ES节点:

    @Bean
    public ElasticsearchOperations logsElasticsearchOperations() throws UnknownHostException {
        Settings settings = Settings.settingsBuilder()
            .put("cluster.name", "log-cluster")
            .put("node.name", "log-node")
            .build();

        Client client = TransportClient.builder()
            .settings(settings)
            .build()
            .addTransportAddress(new InetSocketTransportAddress(new InetSocketAddress("127.0.0.1", 9500)));


        ElasticsearchTemplate template = new ElasticsearchTemplate(client);
        template.createIndex(ProcessLog.class);
        log.debug("Elasticsearch for logs configured.");
        return template;
    }

我遇到的错误是最著名的错误:

Caused by: org.elasticsearch.client.transport.NoNodeAvailableException: None of the configured nodes are available: [{#transport#-1}{127.0.0.1}{127.0.0.1:9500}]

我用谷歌搜索并尝试了不同的配置方法,也将其client.transport.sniff设置为false,但没有一种可行。现在,我花了很多时间尝试配置此服务器,但我仍然缺少一些东西。

在此先感谢您的帮助。

更新:

启动应用程序时,还将运行嵌入式ES实例。所以主机端口配置是这样的:

  • 嵌入式ES:9200(http),9300(tcp)
  • Docker的ES:9400(http),9500(tcp)

这是完整的docker-compose.yml

    version: '2'
    services:
    jhipster-elasticsearch:
        # elasticsearch 2.4.0 - to be in line with spring boot version
        image: jhipster/jhipster-elasticsearch:v1.3.2
        ports:
            - 9400:9200
            - 9500:9300
        volumes:
           - ./log-es-config/elasticsearch_custom.yml:/usr/share/elasticsearch/config/elasticsearch.yml
    jhipster-logstash:
        image: jhipster/jhipster-logstash:v2.2.1
        command: logstash -f /conf/logstash_custom.conf
        ports:
            - 5000:5000/udp
            - 6000:6000/tcp
        volumes:
            - ./logstash-log-es-conf/:/conf
    jhipster-console:
        image: jhipster/jhipster-console:v2.0.1
        ports:
            - 5601:5601
    jhipster-zipkin:
        image: jhipster/jhipster-zipkin:v2.0.1
        ports:
            - 9411:9411
        environment:
            - ES_HOSTS=http://jhipster-elasticsearch:9400
            - ZIPKIN_UI_LOGS_URL=http://localhost:5601/app/kibana#/dashboard/logs-dashboard?_g=(refreshInterval:(display:Off,pause:!f,value:0),time:(from:now-1h,mode:quick,to:now))&_a=(filters:!(),options:(darkTheme:!f),panels:!((col:1,id:logs-levels,panelIndex:2,row:1,size_x:6,size_y:3,type:visualization),(col:7,columns:!(stack_trace),id:Stacktraces,panelIndex:7,row:1,size_x:4,size_y:3,sort:!('@timestamp',desc),type:search),(col:11,id:Log-forwarding-instructions,panelIndex:8,row:1,size_x:2,size_y:3,type:visualization),(col:1,columns:!(app_name,level,message),id:All-logs,panelIndex:9,row:4,size_x:12,size_y:7,sort:!('@timestamp',asc),type:search)),query:(query_string:(analyze_wildcard:!t,query:'{traceId}')),title:logs-dashboard,uiState:())

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2020-05-30

共1个答案

小编典典

我设法通过在内部定义transport.hostas
0.0.0.0elasticsearch_custom.yml使它工作,因此实例绑定到了容器的ip。

也许这也应该是elasticsearch.yml项目github
repo上的默认设置。

2020-05-30