feat: add eBPF plugin

Author: ForFoen

agent/metrics_agent.go

@@ -28,6 +28,7 @@ import (
 	_ "flashcat.cloud/categraf/inputs/diskio"
 	_ "flashcat.cloud/categraf/inputs/dns_query"
 	_ "flashcat.cloud/categraf/inputs/docker"
+	_ "flashcat.cloud/categraf/inputs/eBPF"
 	_ "flashcat.cloud/categraf/inputs/elasticsearch"
 	_ "flashcat.cloud/categraf/inputs/exec"
 	_ "flashcat.cloud/categraf/inputs/filecount"
@@ -37,6 +38,7 @@ import (
 	_ "flashcat.cloud/categraf/inputs/http_response"
 	_ "flashcat.cloud/categraf/inputs/influxdb"
 	_ "flashcat.cloud/categraf/inputs/ipmi"
+	_ "flashcat.cloud/categraf/inputs/iptables"
 	_ "flashcat.cloud/categraf/inputs/ipvs"
 	_ "flashcat.cloud/categraf/inputs/jenkins"
 	_ "flashcat.cloud/categraf/inputs/jolokia_agent"
@@ -92,7 +94,6 @@ import (
 	_ "flashcat.cloud/categraf/inputs/whois"
 	_ "flashcat.cloud/categraf/inputs/xskyapi"
 	_ "flashcat.cloud/categraf/inputs/zookeeper"
-	_ "flashcat.cloud/categraf/inputs/iptables"
 )
 
 type MetricsAgent struct {

conf/input.eBPF/eBPF.toml

@@ -0,0 +1,7 @@
+# # collect interval
+# interval = 15
+[[instances]]
+interface = "ens38"
+
+[[instances]]
+interface = "ens33"

go.mod

@@ -79,7 +79,6 @@ require (
 	github.com/clbanning/mxj/v2 v2.5.5 // indirect
 	github.com/dennwc/ioctl v1.0.0 // indirect
 	github.com/emicklei/go-restful/v3 v3.11.0 // indirect
-	github.com/frankban/quicktest v1.14.3 // indirect
 	github.com/gabriel-vasile/mimetype v1.4.2 // indirect
 	github.com/go-asn1-ber/asn1-ber v1.5.5 // indirect
 	github.com/goccy/go-json v0.10.2 // indirect
@@ -138,6 +137,7 @@ require (
 	github.com/bits-and-blooms/bitset v1.13.0
 	github.com/blang/semver/v4 v4.0.0
 	github.com/bmatcuk/doublestar/v3 v3.0.0
+	github.com/cilium/ebpf v0.12.3
 	github.com/coreos/go-systemd/v22 v22.5.0
 	github.com/dennwc/btrfs v0.0.0-20230312211831-a1f570bd01a1
 	github.com/ema/qdisc v1.0.0

go.sum

@@ -299,8 +299,8 @@ github.com/fortytw2/leaktest v1.3.0/go.mod h1:jDsjWgpAGjm2CA7WthBh/CdZYEPF31XHqu
 github.com/frankban/quicktest v1.11.0/go.mod h1:K+q6oSqb0W0Ininfk863uOk1lMy69l/P6txr3mVT54s=
 github.com/frankban/quicktest v1.11.2/go.mod h1:K+q6oSqb0W0Ininfk863uOk1lMy69l/P6txr3mVT54s=
 github.com/frankban/quicktest v1.13.0/go.mod h1:qLE0fzW0VuyUAJgPU19zByoIr0HtCHN/r/VLSOOIySU=
-github.com/frankban/quicktest v1.14.3 h1:FJKSZTDHjyhriyC81FLQ0LY93eSai0ZyR/ZIkd3ZUKE=
-github.com/frankban/quicktest v1.14.3/go.mod h1:mgiwOwqx65TmIk1wJ6Q7wvnVMocbUorkibMOrVTHZps=
+github.com/frankban/quicktest v1.14.5 h1:dfYrrRyLtiqT9GyKXgdh+k4inNeTvmGbuSgZ3lx3GhA=
+github.com/frankban/quicktest v1.14.5/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
 github.com/freedomkk-qfeng/go-fastping v0.0.0-20160109021039-d7bb493dee3e h1:g8x+P3+xjxt7c53bucQW0ymvj+whjKfCLZH+99UMLS0=
 github.com/freedomkk-qfeng/go-fastping v0.0.0-20160109021039-d7bb493dee3e/go.mod h1:UcrAEbxjAhuq5beDj0conKRHGUhBPLkFt8aUmN/jrHY=
 github.com/fsnotify/fsnotify v1.6.0 h1:n+5WquG0fcWoWp6xPWfHdbskMCQaFnG6PfBrh1Ky4HY=

inputs/eBPF/README.md

@@ -0,0 +1,21 @@
+# eBPF
+
+利用ebpf和xdp技术进行网络数据采集
+
+目前插件逻辑为在XDP挂载点采集RoCE网络数据，仅需设置网卡名称
+后续可自定义更强大的功能
+## 环境要求
+本插件利用cilium提供的eBPF-go库，需要先配置eBPF环境，详细请参考[教程](https://ebpf-go.dev/guides/getting-started/),在Linux内核版本较低的机器上可能无法部署
+
+在部署后可通过以下指令生成脚手架代码
+```
+go generate inputs/eBPF/eBPF.go
+
+Compiled /home/xxx/categraf/inputs/eBPF/bpf_bpfel.o
+Stripped /home/xxx/categraf/inputs/eBPF/bpf_bpfel.o
+Wrote /home/xxx/categraf/inputs/eBPF/bpf_bpfel.go
+Compiled /home/xxx/categraf/inputs/eBPF/bpf_bpfeb.o
+Stripped /home/xxx/categraf/inputs/eBPF/bpf_bpfeb.o
+Wrote /home/xxx/categraf/inputs/eBPF/bpf_bpfeb.go
+```
+利用以上脚手架代码进行eBPF相关操作