iLogtail

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iLogtail 是阿里云日志服务(Log Service)中的一款高性能、可扩展的日志采集工具。它被设计用于实时收集、解析和传输各类日志数据,支持多种数据源和复杂的日志处理场景,广泛应用于分布式系统、Web 服务器、应用程序等环境中的日志管理。

eBPF网络调用数据


无侵入网络调用数据

简介

observer_ilogtail_network 插件支持从网络系统调用中收集四层网络调用,并借助网络解析模块,可以识别七层网络调用细节。此功能核心网络观测能力基于eBPF技术实现,具有高性能、无侵入等核心优势。

版本

Beta

前提

  1. Linux 内核 4.19+
  2. 下载libebpf.so 动态链接库放到iLogtail 的运行路径,此代码后续被CoolBpf 开源。
    • wget https://logtail-release-us-west-1.oss-us-west-1.aliyuncs.com/kubernetes/libebpf.so

配置参数

基础参数

参数类型是否必选说明
TypeString插件类型,指定为observer_ilogtail_network_v1
Common.FlushOutL4IntervalNumber聚合数据输出间隔时间,默认15s
Common.FlushOutL7IntervalNumber聚合数据输出间隔时间,默认60s
Common.FlushMetaIntervalNumber读取容器元信息间隔时间,默认30s,行为可类比我为docker ps
Common.FlushNetlinkIntervalNumber设置读取Socket元信息的时间间隔,默认10s
Common.SamplingNumber设置网络数据的采样率,默认100
Common.ProtocolProcessbool开启后Logtail将解析应用层的网络协议数据,例如HTTP、MySQL、Redis等,默认开启。
Common.DropUnixSocketNumber开启后将丢弃Unix域网络请求。Unix域常用于本地网络交互,默认开启。
Common.DropLocalConnectionsNumber开启后丢弃对端地址为本地的INET域网络请求,默认开启。
Common.DropUnknownSocketNumber开启后将丢弃非INET域或Unix域的网络请求,默认开启。
Common.IncludeProtocols[]string进行7层网络协议识别的协议类别,默认为全部,目前支持HTTP、Redis、MySQL、PgSQL、DNS 5种协议。
Common.Tagsmap[string]stringtagb标签,会被附带上传
EBPF.Enabledmap[string]string开启Ebpf 功能

高级参数

参数类型是否必选说明
Common.IncludeContainerLabelsmap[string]string用于指定待采集的容器。多个白名单之间为或关系,即只要容器Label满足任一白名单即可被匹配。注意: 此变量为容器Label而非Kubernetes Label
Common.ExcludeContainerLabelsmap[string]string用于排除待采集的容器。多个黑名单之间为或关系,即只要容器Label满足任一黑名单即可被匹配。注意: 此变量为容器Label而非Kubernetes Label
Common.IncludeK8sLabelsmap[string]string用于指定待采集的容器。设置LabelKey为具体名称,LabelValue为正则表达式。例如设置LabelKey为io.kubernetes.container.name,设置LabelValue为^(nginx
Common.ExcludeK8sLabelsmap[string]string用于排除不需要采集的容器。设置LabelKey为具体名称,LabelValue为正则表达式。例如设置LabelKey为io.kubernetes.container.name,设置LabelValue为^(nginx
Common.IncludeEnvsmap[string]string用于指定待采集的容器。设置EnvKey为具体名称,EnvValue为正则表达式。例如设置EnvKey为NGINX_SERVICE_PORT,设置EnvValue为^(80
Common.ExcludeEnvsmap[string]string用于排除不需要采集的容器。设置EnvKey为具体名称,EnvValue为正则表达式。例如设置EnvKey为NGINX_SERVICE_PORT,设置EnvValue为^(80
Common.IncludeCmdRegexstring设置命令行正则表达式,用于指定需要监控的进程。例如设置为^mockclient$,表示仅监控/proc/{pid}/cmdline下名为mockclient的进程。
Common.ExcludeCmdRegexstring设置命令行正则表达式,用于排除不需要监控的进程。例如设置为^mockclient$,表示不监控/proc/{pid}/cmdline下名为mockclient的进程。
Common.IncludeContainerNameRegexstring输入匹配Contianer名称的正则表达式,用于指定待采集的 Contianer。
Common.ExcludeContainerNameRegexstring输入匹配Contianer名称的正则表达式,用于排除不需要采集的 Contianer。
Common.IncludePodNameRegexstring输入匹配Pod名称的正则表达式,用于指定待采集的Pod。
Common.ExcludePodNameRegexstring输入匹配Pod名称的正则表达式,用于排除不需要采集的Pod。
Common.IncludeNamespaceNameRegexstring输入匹配Namespace名称的正则表达式,用于指定待采集的命名空间。
Common.ExcludeNamespaceNameRegexstring输入匹配Namespace名称的正则表达式,用于排除不需要采集的命名空间。
EBPF.Pidmap[string]string指定唯一的进程ID 用于采集范围确定

样例:收集HTTP 请求调用

采集配置

observer_ilogtail_network_v1 程序运行与C++ 核心部分,需要增加processor_default 插件,才可以选取社区多种输出插件,如Kafka

enable: true
inputs:
- Type: observer_ilogtail_network_v1
Common:
FlushOutL4Interval: 5
FlushOutL7Interval: 5
EBPF:
Enabled: true
processors:
- Type: processor_default
flushers:
- Type: flusher_stdout

输出

2022-08-25 16:44:01 [INF] [flusher_stdout.go:119] [Flush] [config#/root/workspace/ilogtail/output/./config/local/demo.yaml,] {"type":"protocols","_process_pid_":"605","_process_cmd_":"/usr/sbin/nscd","_running_mode_":"host","protocol":"dns","query_record":"ilogtail-community-edition.cn-shanghai.log.aliyuncs.com","query_type":"A","success":"1","role":"client","remote_info":"{\"remote_ip\":\"100.100.2.136\",\"remote_port\":\"53\",\"remote_type\":\"dns\"}\n","total_count":"1","total_latency_ns":"387138","total_req_bytes":"73","total_resp_bytes":"272","__time__":"1661417038"}:
2022-08-25 16:44:01 [INF] [flusher_stdout.go:119] [Flush] [config#/root/workspace/ilogtail/output/./config/local/demo.yaml,] {"type":"protocols","_process_pid_":"1945","_process_cmd_":"/usr/local/cloudmonitor/bin/argusagent","_running_mode_":"host","protocol":"http","version":"1","host":"metrichub-cn-beijing.aliyun.com","method":"POST","url":"/agent/metrics/putLines","resp_code":"200","role":"client","remote_info":"{\"remote_ip\":\"100.100.105.70\",\"remote_port\":\"80\",\"remote_type\":\"server\"}\n","total_count":"1","total_latency_ns":"3492453","total_req_bytes":"13661","total_resp_bytes":"165","__time__":"1661417038"}:
2022-08-25 16:44:01 [INF] [flusher_stdout.go:119] [Flush] [config#/root/workspace/ilogtail/output/./config/local/demo.yaml,] {"type":"statistics","_process_pid_":"1945","_process_cmd_":"/usr/local/cloudmonitor/bin/argusagent","_running_mode_":"host","remote_info":"{\"remote_ip\":\"100.100.105.70\",\"remote_port\":\"80\",\"remote_type\":\"server\"}\n","socket_type":"inet_socket","role":"client","send_bytes":"13661","recv_bytes":"165","send_packets":"1","recv_packets":"1","send_total_latency":"0","recv_total_latency":"0","__time__":"1661417038"}:
2022-08-25 16:44:01 [INF] [flusher_stdout.go:119] [Flush] [config#/root/workspace/ilogtail/output/./config/local/demo.yaml,] {"type":"statistics","_process_pid_":"605","_process_cmd_":"/usr/sbin/nscd","_running_mode_":"host","remote_info":"{\"remote_ip\":\"100.100.2.136\",\"remote_port\":\"53\",\"remote_type\":\"dns\"}\n","socket_type":"inet_socket","role":"client","send_bytes":"73","recv_bytes":"272","send_packets":"1","recv_packets":"1","send_total_latency":"0","recv_total_latency":"0","__time__":"1661417038"}:

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