Filebeat 7.2-将日志从Docker容器保存到Logstash

Question

我的ec2实例上运行了几个Docker容器。

我想将这些容器中的日志直接保存到Logstash（弹性云）中。

当我尝试手动安装Filebeat时，一切正常。 我已经使用下载了它

curl -L -O https://artifacts.elastic.co/downloads/beats/filebeat/filebeat-7.2.0-linux-x86_64.tar.gz

我已将其解压缩，将filebeat.yml配置更改为

filebeat.inputs:

- type: log

  enabled: true

  fields:
    application: "myapp"

  fields_under_root: true

  paths:
    - /var/lib/docker/containers/*/*.log

cloud.id: "iamnotshowingyoumycloudidthisisjustfake"
cloud.auth: "elastic:mypassword"

这工作得很好，我可以在Kibana中搜索应用程序“ myapp”后找到我的日志。

但是，当我尝试从Docker运行Filebeat时，没有成功。

这是我的docker-compose.yml的filebeat部分

filebeat:
    image: docker.elastic.co/beats/filebeat:7.2.0
    container_name: filebeat
    volumes:
      - ./filebeat/filebeat.yml:/usr/share/filebeat/filebeat.yml:ro
      - /var/lib/docker/containers:/var/lib/docker/containers:ro
      - /var/run/docker.sock:/var/run/docker.sock #needed for autodiscover

我以前的手动执行filebeat.yml文件不起作用，因此我尝试了许多示例，但没有任何效果。 这是一个我认为应该起作用的示例，但事实并非如此。 Docker容器启动没有问题，但是无法以某种方式从日志文件读取。

filebeat.autodiscover:
  providers:
    - type: docker

filebeat.inputs:
- type: log
  enabled: true
  paths:
    - /var/lib/docker/containers/*/*.log
  json.keys_under_root: true
  json.add_error_key: true
  fields_under_root: true
  fields:
    application: "myapp"

cloud.id: "iamnotshowingyoumycloudidthisisjustfake"
cloud.auth: "elastic:mypassword"

我也尝试过这样的事情

filebeat.autodiscover:
  providers:
    - type: docker
      templates:
        config:
          - type: docker
            containers.ids:
              - "*"

filebeat.inputs:
  - type: docker
    containers.ids:
      - "*"
    processors:
      - add_docker_metadata:
    fields:
      application: "myapp"
    fields_under_root: true

cloud.id: "iamnotshowingyoumycloudidthisisjustfake"
cloud.auth: "elastic:mypassword"

我不知道还有什么尝试，filebeat日志仍然显示

 "harvester":{"open_files":0,"running":0}}

我100％确保来自容器的日志位于/var/lib/docker/containers/*/*.log ...下，正如我所说的，当手动安装Filebeat时，它可以工作，而不是作为docker映像。

有什么建议吗？

Filebeat的输出日志

2019-07-23T05:35:58.128Z        INFO    instance/beat.go:292    Setup Beat: filebeat; Version: 7.2.0
2019-07-23T05:35:58.128Z        INFO    [index-management]      idxmgmt/std.go:178      Set output.elasticsearch.index to 'filebeat-7.2.0' as ILM is enabled.
2019-07-23T05:35:58.129Z        INFO    elasticsearch/client.go:166     Elasticsearch url: https://123456789.us-east-1.aws.found.io:443
2019-07-23T05:35:58.129Z        INFO    [publisher]     pipeline/module.go:97   Beat name: e3e5163f622d
2019-07-23T05:35:58.136Z        INFO    [monitoring]    log/log.go:118  Starting metrics logging every 30s
2019-07-23T05:35:58.142Z        INFO    instance/beat.go:421    filebeat start running.
2019-07-23T05:35:58.142Z        INFO    registrar/migrate.go:104        No registry home found. Create: /usr/share/filebeat/data/registry/filebeat
2019-07-23T05:35:58.142Z        INFO    registrar/migrate.go:112        Initialize registry meta file
2019-07-23T05:35:58.144Z        INFO    registrar/registrar.go:108      No registry file found under: /usr/share/filebeat/data/registry/filebeat/data.json. Creating a new registry file.
2019-07-23T05:35:58.146Z        INFO    registrar/registrar.go:145      Loading registrar data from /usr/share/filebeat/data/registry/filebeat/data.json
2019-07-23T05:35:58.146Z        INFO    registrar/registrar.go:152      States Loaded from registrar: 0
2019-07-23T05:35:58.146Z        INFO    crawler/crawler.go:72   Loading Inputs: 1
2019-07-23T05:35:58.146Z        WARN    [cfgwarn]       docker/input.go:49      DEPRECATED: 'docker' input deprecated. Use 'container' input instead. Will be removed in version: 8.0.0
2019-07-23T05:35:58.150Z        INFO    log/input.go:148        Configured paths: [/var/lib/docker/containers/*/*.log]
2019-07-23T05:35:58.150Z        INFO    input/input.go:114      Starting input of type: docker; ID: 11882227825887812171
2019-07-23T05:35:58.150Z        INFO    crawler/crawler.go:106  Loading and starting Inputs completed. Enabled inputs: 1
2019-07-23T05:35:58.150Z        WARN    [cfgwarn]       docker/docker.go:57     BETA: The docker autodiscover is beta
2019-07-23T05:35:58.153Z        INFO    [autodiscover]  autodiscover/autodiscover.go:105        Starting autodiscover manager
2019-07-23T05:36:28.144Z        INFO    [monitoring]    log/log.go:145  Non-zero metrics in the last 30s        
{"monitoring": {"metrics": {"beat":{"cpu":{"system":{"ticks":10,"time":{"ms":17}},"total":{"ticks":40,"time":{"ms":52},"value":40},"user":{"ticks":30,"time":{"ms":35}}},"handles":{"limit":{"hard":4096,"soft":1024},"open":9},"info":{"ephemeral_id":"4427db93-2943-4a8d-8c55-6a2e64f19555","uptime":{"ms":30111}},"memstats":{"gc_next":4194304,"memory_alloc":2118672,"memory_total":6463872,"rss":28352512},"runtime":{"goroutines":34}},"filebeat":{"harvester":{"open_files":0,"running":0}},"libbeat":{"config":{"module":{"running":0}},"output":{"type":"elasticsearch"},"pipeline":{"clients":1,"events":{"active":0}}},"registrar":{"states":{"current":0},"writes":{"success":1,"total":1}},"system":{"cpu":{"cores":1},"load":{"1":0.31,"15":0.03,"5":0.09,"norm":{"1":0.31,"15":0.03,"5":0.09}}}}}}

Answer 1

嗯，在Filebeat配置中我看不到任何明显的原因，为什么它不起作用，我有一个非常相似的配置正在运行6.x Filebeat。

我建议对容器进行docker inspect ，并确认安装在那里，也许检查权限，但日志中可能会显示错误。

还可以尝试使用container input吗？ 我相信这是在7.2+版本中推荐的容器日志方法： https ://www.elastic.co/guide/en/beats/filebeat/7.2/filebeat-input-container.html