Question

亚马逊提供这些现成的文件，用于将Tomcat / Apache / nginx日志发送到Cloudwatch日志，这些日志非常有效。

http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/AWSHowTo.cloudwatchlogs.html

然而，出于我的目的，他们只发送nginx日志，这实际上是不够的，不幸的是他们也提供了关于文件格式的零文档。我想要实现的是将node.js日志从我的Docker应用程序发送到Cloudwatch（因为自动缩放会使实例来去）。

因此，像/var/log/eb-docker/containers/eb-current-app/add839a3b599-stdouterr.log这样的文件会出现在Cloudwatch中。

所以，到目前为止我尝试过的是从上面的链接调整webrequests配置：

##############################################################################
## Sends docker logs to CloudWatch Logs
##############################################################################
Mappings:
  CWLogs:
    ApplicationLogGroup:
      LogFile: "/var/log/eb-docker/containers/eb-current-app/*-stdouterr.log"
      TimestampFormat: "%Y-%m-%d %H:%M:%S"

Outputs:
  ApplicationLogGroup:
    Description: "The name of the Cloudwatch Logs Log Group created for this environments web server access logs. You can specify this by setting the value for the environment variable: WebRequestCWLogGroup. Please note: if you update this value, then you will need to go and clear out the old cloudwatch logs group and delete it through Cloudwatch Logs."
    Value: { "Ref" : "AWSEBCloudWatchLogs8832c8d3f1a54c238a40e36f31ef55a0ApplicationLogGroup"}

Resources :
  AWSEBCloudWatchLogs8832c8d3f1a54c238a40e36f31ef55a0ApplicationLogGroup:    ## Must have prefix:  AWSEBCloudWatchLogs8832c8d3f1a54c238a40e36f31ef55a0
    Type: "AWS::Logs::LogGroup"
    DependsOn: AWSEBBeanstalkMetadata
    DeletionPolicy: Retain     ## this is required
    Properties:
      LogGroupName:
        "Fn::GetOptionSetting":
          Namespace: "aws:elasticbeanstalk:application:environment"
          OptionName: ApplicationLogGroup
          DefaultValue: {"Fn::Join":["-", [{ "Ref":"AWSEBEnvironmentName" }, "stdouterr"]]}
      RetentionInDays: 14

  ## Register the files/log groups for monitoring
  AWSEBAutoScalingGroup:
    Metadata:
      "AWS::CloudFormation::Init":
        CWLogsAgentConfigSetup:
          files:
            ## any .conf file put into /tmp/cwlogs/conf.d will be added to the cwlogs config (see cwl-agent.config)
            "/tmp/cwlogs/conf.d/stdouterr.conf":
              content : |
                [stdouterr]
                file = `{"Fn::FindInMap":["CWLogs", "ApplicationLogGroup", "LogFile"]}`
                log_group_name = `{ "Ref" : "AWSEBCloudWatchLogs8832c8d3f1a54c238a40e36f31ef55a0ApplicationLogGroup" }`
                log_stream_name = {instance_id}
                datetime_format = `{"Fn::FindInMap":["CWLogs", "ApplicationLogGroup", "TimestampFormat"]}`
              mode  : "000400"
              owner : root
              group : root

不幸的是，这似乎不起作用。：/

此外，如果有fe，是否有人知道日志是否会出现。时间戳格式错了？特别重要，因为默认情况下，异常并没有真正的时间戳，所以实际的错误就会消失。

我的应用程序日志行目前如下所示： 2016-07-05 09:11:31 ::1 - GET / 200 (5.107 ms)

Answer 1

您可以使用此链接在您的beanstalk实例上设置cloudwatch代理（如果您还没有） - http://serebrov.github.io/html/2015-05-20-cloudwatch-setup.html。

下一步 - 尝试发送/var/lib/docker/containers//.json中的文件来收集您的docker日志。它是容器stdout和stderr写入的地方。

如何从Elastic Beanstalk Docker应用程序将node.js日志发送到Cloudwatch日志？

1 个答案: