feat: support opentelemetry

Author: fatelei

conf/config.yaml

@@ -14,3 +14,18 @@ proxy:
   socks5: ''
   http: ''
   https: ''
+otel:
+  enable_otel: false
+  otel_exporter_type: otlp
+  otel_exporter_otlp_protocol: http/protobuf
+  otlp_base_endpoint: http://localhost:4318
+  otlp_trace_endpoint: ''
+  otlp_metric_endpoint: ''
+  otel_api_key: ''
+  otel_sampling_rate: 1.0
+  otel_batch_export_schedule_delay: 5000
+  otel_max_queue_size: 2048
+  otel_max_export_batch_size: 512
+  otel_metric_export_interval: 60000
+  otel_batch_export_timeout: 10000
+  otel_metric_export_timeout: 30000

go.mod

@@ -6,19 +6,32 @@ require (
 	github.com/gin-gonic/gin v1.10.0
 	github.com/google/uuid v1.6.0
 	github.com/seccomp/libseccomp-golang v0.11.0
+	go.opentelemetry.io/contrib/instrumentation/github.com/gin-gonic/gin/otelgin v0.53.0
+	go.opentelemetry.io/otel v1.39.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.26.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.26.0
+	go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.39.0
+	go.opentelemetry.io/otel/sdk v1.39.0
+	go.opentelemetry.io/otel/trace v1.39.0
+	gopkg.in/natefinch/lumberjack.v2 v2.2.1
 	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
 	github.com/bytedance/sonic v1.13.2 // indirect
 	github.com/bytedance/sonic/loader v0.2.4 // indirect
+	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/cloudwego/base64x v0.1.5 // indirect
 	github.com/gabriel-vasile/mimetype v1.4.9 // indirect
 	github.com/gin-contrib/sse v1.1.0 // indirect
+	github.com/go-logr/logr v1.4.3 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-playground/locales v0.14.1 // indirect
 	github.com/go-playground/universal-translator v0.18.1 // indirect
 	github.com/go-playground/validator/v10 v10.26.0 // indirect
 	github.com/goccy/go-json v0.10.5 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.19.1 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.10 // indirect
 	github.com/leodido/go-urn v1.4.0 // indirect
@@ -28,11 +41,16 @@ require (
 	github.com/pelletier/go-toml/v2 v2.2.4 // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/ugorji/go/codec v1.2.12 // indirect
+	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
+	go.opentelemetry.io/otel/metric v1.39.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.2.0 // indirect
 	golang.org/x/arch v0.17.0 // indirect
 	golang.org/x/crypto v0.45.0 // indirect
 	golang.org/x/net v0.47.0 // indirect
-	golang.org/x/sys v0.38.0 // indirect
+	golang.org/x/sys v0.39.0 // indirect
 	golang.org/x/text v0.31.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20240227224415-6ceb2ff114de // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240401170217-c3f982113cda // indirect
+	google.golang.org/grpc v1.63.2 // indirect
 	google.golang.org/protobuf v1.36.6 // indirect
-	gopkg.in/natefinch/lumberjack.v2 v2.2.1 // indirect
 )

go.sum

@@ -3,6 +3,10 @@ github.com/bytedance/sonic v1.13.2/go.mod h1:o68xyaF9u2gvVBuGHPlUVCy+ZfmNNO5ETf1
 github.com/bytedance/sonic/loader v0.1.1/go.mod h1:ncP89zfokxS5LZrJxl5z0UJcsk4M4yY2JpfqGeCtNLU=
 github.com/bytedance/sonic/loader v0.2.4 h1:ZWCw4stuXUsn1/+zQDqeE7JKP+QO47tz7QCNan80NzY=
 github.com/bytedance/sonic/loader v0.2.4/go.mod h1:N8A3vUdtUebEY2/VQC0MyhYeKUFosQU6FxH2JmUe6VI=
+github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8=
+github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cloudwego/base64x v0.1.5 h1:XPciSp1xaq2VCSt6lF0phncD4koWyULpl5bUxbfCyP4=
 github.com/cloudwego/base64x v0.1.5/go.mod h1:0zlkT4Wn5C6NdauXdJRhSKRlJvmclQ1hhJgA0rcu/8w=
 github.com/cloudwego/iasm v0.2.0/go.mod h1:8rXZaNYT2n95jn+zTI1sDr+IgcD2GVs0nlbbQPiEFhY=
@@ -15,6 +19,11 @@ github.com/gin-contrib/sse v1.1.0 h1:n0w2GMuUpWDVp7qSpvze6fAu9iRxJY4Hmj6AmBOU05w
 github.com/gin-contrib/sse v1.1.0/go.mod h1:hxRZ5gVpWMT7Z0B0gSNYqqsSCNIJMjzvm6fqCz9vjwM=
 github.com/gin-gonic/gin v1.10.0 h1:nTuyha1TYqgedzytsKYqna+DfLos46nTv2ygFy86HFU=
 github.com/gin-gonic/gin v1.10.0/go.mod h1:4PMNQiOhvDRa013RKVbsiNwoyezlm2rm0uX/T7kzp5Y=
+github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
+github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
+github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
+github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
 github.com/go-playground/assert/v2 v2.2.0 h1:JvknZsQTYeFEAhQwI4qEt9cyV5ONwRHC+lYKSsYSR8s=
 github.com/go-playground/assert/v2 v2.2.0/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
 github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/oXslEjJA=
@@ -25,17 +34,23 @@ github.com/go-playground/validator/v10 v10.26.0 h1:SP05Nqhjcvz81uJaRfEV0YBSSSGMc
 github.com/go-playground/validator/v10 v10.26.0/go.mod h1:I5QpIEbmr8On7W0TktmJAumgzX4CA1XNl4ZmDuVHKKo=
 github.com/goccy/go-json v0.10.5 h1:Fq85nIqj+gXn/S5ahsiTlK3TmC85qgirsdTP/+DeaC4=
 github.com/goccy/go-json v0.10.5/go.mod h1:oq7eo15ShAhp70Anwd5lgX2pLfOS3QCiwU/PULtXL6M=
-github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
-github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.19.1 h1:/c3QmbOGMGTOumP2iT/rCwB7b0QDGLKzqOmktBjT+Is=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.19.1/go.mod h1:5SN9VR2LTsRFsrEC6FHgRbTWrTHu6tqPeKxEQv15giM=
 github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
 github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
 github.com/klauspost/cpuid/v2 v2.0.9/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
 github.com/klauspost/cpuid/v2 v2.2.10 h1:tBs3QSyvjDyFTq3uoc/9xFpCuOsJQFNPiAhYdw2skhE=
 github.com/klauspost/cpuid/v2 v2.2.10/go.mod h1:hqwkgyIinND0mEev00jJYCxPNVRVXFQeu1XKlok6oO0=
 github.com/knz/go-libedit v1.10.1/go.mod h1:MZTVkCWyz0oBc7JOWP3wNAzd002ZbM/5hgShxwh4x8M=
+github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
+github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/leodido/go-urn v1.4.0 h1:WT9HwE9SGECu3lg4d/dIA+jxlljEa1/ffXKmRjqdmIQ=
 github.com/leodido/go-urn v1.4.0/go.mod h1:bvxc+MVxLKB4z00jd1z+Dvzr47oO32F/QSNjSBOlFxI=
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
@@ -49,6 +64,8 @@ github.com/pelletier/go-toml/v2 v2.2.4 h1:mye9XuhQ6gvn5h28+VilKrrPoQVanw5PMw/TB0
 github.com/pelletier/go-toml/v2 v2.2.4/go.mod h1:2gIqNv+qfxSVS7cM2xJQKtLSTLUE9V8t9Stt+h56mCY=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/rogpeppe/go-internal v1.14.1 h1:UQB4HGPB6osV0SQTLymcB4TgvyWu6ZyliaW0tI/otEQ=
+github.com/rogpeppe/go-internal v1.14.1/go.mod h1:MaRKkUm5W0goXpeCfT7UZI6fk/L7L7so1lCWt35ZSgc=
 github.com/seccomp/libseccomp-golang v0.11.0 h1:SDkcBRqGLP+sezmMACkxO1EfgbghxIxnRKfd6mHUEis=
 github.com/seccomp/libseccomp-golang v0.11.0/go.mod h1:5m1Lk8E9OwgZTTVz4bBOer7JuazaBa+xTkM895tDiWc=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
@@ -59,29 +76,62 @@ github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
-github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
-github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
+github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
 github.com/twitchyliquid64/golang-asm v0.15.1 h1:SU5vSMR7hnwNxj24w34ZyCi/FmDZTkS4MhqMhdFk5YI=
 github.com/twitchyliquid64/golang-asm v0.15.1/go.mod h1:a1lVb/DtPvCB8fslRZhAngC2+aY1QWCk3Cedj/Gdt08=
 github.com/ugorji/go/codec v1.2.12 h1:9LC83zGrHhuUA9l16C9AHXAqEV/2wBQ4nkvumAE65EE=
 github.com/ugorji/go/codec v1.2.12/go.mod h1:UNopzCgEMSXjBc6AOMqYvWC1ktqTAfzJZUZgYf6w6lg=
+go.opentelemetry.io/auto/sdk v1.2.1 h1:jXsnJ4Lmnqd11kwkBV2LgLoFMZKizbCi5fNZ/ipaZ64=
+go.opentelemetry.io/auto/sdk v1.2.1/go.mod h1:KRTj+aOaElaLi+wW1kO/DZRXwkF4C5xPbEe3ZiIhN7Y=
+go.opentelemetry.io/contrib/instrumentation/github.com/gin-gonic/gin/otelgin v0.53.0 h1:ktt8061VV/UU5pdPF6AcEFyuPxMizf/vU6eD1l+13LI=
+go.opentelemetry.io/contrib/instrumentation/github.com/gin-gonic/gin/otelgin v0.53.0/go.mod h1:JSRiHPV7E3dbOAP0N6SRPg2nC/cugJnVXRqP018ejtY=
+go.opentelemetry.io/contrib/propagators/b3 v1.28.0 h1:XR6CFQrQ/ttAYmTBX2loUEFGdk1h17pxYI8828dk/1Y=
+go.opentelemetry.io/contrib/propagators/b3 v1.28.0/go.mod h1:DWRkzJONLquRz7OJPh2rRbZ7MugQj62rk7g6HRnEqh0=
+go.opentelemetry.io/otel v1.39.0 h1:8yPrr/S0ND9QEfTfdP9V+SiwT4E0G7Y5MO7p85nis48=
+go.opentelemetry.io/otel v1.39.0/go.mod h1:kLlFTywNWrFyEdH0oj2xK0bFYZtHRYUdv1NklR/tgc8=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.26.0 h1:1u/AyyOqAWzy+SkPxDpahCNZParHV8Vid1RnI2clyDE=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.26.0/go.mod h1:z46paqbJ9l7c9fIPCXTqTGwhQZ5XoTIsfeFYWboizjs=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.26.0 h1:1wp/gyxsuYtuE/JFxsQRtcCDtMrO2qMvlfXALU5wkzI=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.26.0/go.mod h1:gbTHmghkGgqxMomVQQMur1Nba4M0MQ8AYThXDUjsJ38=
+go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.39.0 h1:8UPA4IbVZxpsD76ihGOQiFml99GPAEZLohDXvqHdi6U=
+go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.39.0/go.mod h1:MZ1T/+51uIVKlRzGw1Fo46KEWThjlCBZKl2LzY5nv4g=
+go.opentelemetry.io/otel/metric v1.39.0 h1:d1UzonvEZriVfpNKEVmHXbdf909uGTOQjA0HF0Ls5Q0=
+go.opentelemetry.io/otel/metric v1.39.0/go.mod h1:jrZSWL33sD7bBxg1xjrqyDjnuzTUB0x1nBERXd7Ftcs=
+go.opentelemetry.io/otel/sdk v1.39.0 h1:nMLYcjVsvdui1B/4FRkwjzoRVsMK8uL/cj0OyhKzt18=
+go.opentelemetry.io/otel/sdk v1.39.0/go.mod h1:vDojkC4/jsTJsE+kh+LXYQlbL8CgrEcwmt1ENZszdJE=
+go.opentelemetry.io/otel/sdk/metric v1.39.0 h1:cXMVVFVgsIf2YL6QkRF4Urbr/aMInf+2WKg+sEJTtB8=
+go.opentelemetry.io/otel/sdk/metric v1.39.0/go.mod h1:xq9HEVH7qeX69/JnwEfp6fVq5wosJsY1mt4lLfYdVew=
+go.opentelemetry.io/otel/trace v1.39.0 h1:2d2vfpEDmCJ5zVYz7ijaJdOF59xLomrvj7bjt6/qCJI=
+go.opentelemetry.io/otel/trace v1.39.0/go.mod h1:88w4/PnZSazkGzz/w84VHpQafiU4EtqqlVdxWy+rNOA=
+go.opentelemetry.io/proto/otlp v1.2.0 h1:pVeZGk7nXDC9O2hncA6nHldxEjm6LByfA2aN8IOkz94=
+go.opentelemetry.io/proto/otlp v1.2.0/go.mod h1:gGpR8txAl5M03pDhMC79G6SdqNV26naRm/KDsgaHD8A=
+go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
+go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
 golang.org/x/arch v0.17.0 h1:4O3dfLzd+lQewptAHqjewQZQDyEdejz3VwgeYwkZneU=
 golang.org/x/arch v0.17.0/go.mod h1:bdwinDaKcfZUGpH09BB7ZmOfhalA8lQdzl62l8gGWsk=
 golang.org/x/crypto v0.45.0 h1:jMBrvKuj23MTlT0bQEOBcAE0mjg8mK9RXFhRH6nyF3Q=
 golang.org/x/crypto v0.45.0/go.mod h1:XTGrrkGJve7CYK7J8PEww4aY7gM3qMCElcJQ8n8JdX4=
 golang.org/x/net v0.47.0 h1:Mx+4dIFzqraBXUugkia1OOvlD6LemFo1ALMHjrXDOhY=
 golang.org/x/net v0.47.0/go.mod h1:/jNxtkgq5yWUGYkaZGqo27cfGZ1c5Nen03aYrrKpVRU=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.38.0 h1:3yZWxaJjBmCWXqhN1qh02AkOnCQ1poK6oF+a7xWL6Gc=
-golang.org/x/sys v0.38.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk=
+golang.org/x/sys v0.39.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
 golang.org/x/text v0.31.0 h1:aC8ghyu4JhP8VojJ2lEHBnochRno1sgL6nEi9WGFGMM=
 golang.org/x/text v0.31.0/go.mod h1:tKRAlv61yKIjGGHX/4tP1LTbc13YSec1pxVEWXzfoeM=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+google.golang.org/genproto v0.0.0-20240227224415-6ceb2ff114de h1:F6qOa9AZTYJXOUEr4jDysRDLrm4PHePlge4v4TGAlxY=
+google.golang.org/genproto v0.0.0-20240227224415-6ceb2ff114de/go.mod h1:VUhTRKeHn9wwcdrk73nvdC9gF178Tzhmt/qyaFcPLSo=
+google.golang.org/genproto/googleapis/api v0.0.0-20240227224415-6ceb2ff114de h1:jFNzHPIeuzhdRwVhbZdiym9q0ory/xY3sA+v2wPg8I0=
+google.golang.org/genproto/googleapis/api v0.0.0-20240227224415-6ceb2ff114de/go.mod h1:5iCWqnniDlqZHrd3neWVTOwvh/v6s3232omMecelax8=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20240401170217-c3f982113cda h1:LI5DOvAxUPMv/50agcLLoo+AdWc1irS9Rzz4vPuD1V4=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20240401170217-c3f982113cda/go.mod h1:WtryC6hu0hhx87FDGxWCDptyssuo68sk10vYjF+T9fY=
+google.golang.org/grpc v1.63.2 h1:MUeiw1B2maTVZthpU5xvASfTh3LDbxHd6IJ6QQVU+xM=
+google.golang.org/grpc v1.63.2/go.mod h1:WAX/8DgncnokcFUldAxq7GeB5DXHDbMF+lLvDomNkRA=
 google.golang.org/protobuf v1.36.6 h1:z1NpPI8ku2WgiWnf+t9wTPsn6eP1L7ksHUlkfLvd9xY=
 google.golang.org/protobuf v1.36.6/go.mod h1:jduwjTPXsFjZGTmRluh+L6NjiWu7pchiJ2/5YcXBHnY=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/natefinch/lumberjack.v2 v2.2.1 h1:bBRl1b0OH9s/DuPhuXpNl+VtCaJXFZ5/uEFST95x9zc=
 gopkg.in/natefinch/lumberjack.v2 v2.2.1/go.mod h1:YD8tP3GAjkrDg1eZH7EGmyESg/lsYskCTPBJVb9jqSc=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

internal/controller/run.go

@@ -14,13 +14,13 @@ func RunSandboxController(c *gin.Context) {
 		Preload       string `json:"preload" form:"preload"`
 		EnableNetwork bool   `json:"enable_network" form:"enable_network"`
 	}) {
-		switch req.Language {
+	switch req.Language {
 		case "python3":
-			c.JSON(200, service.RunPython3Code(c, req.Code, req.Preload, &runner_types.RunnerOptions{
+			c.JSON(200, service.RunPython3Code(c.Request.Context(), req.Code, req.Preload, &runner_types.RunnerOptions{
 				EnableNetwork: req.EnableNetwork,
 			}))
 		case "nodejs":
-			c.JSON(200, service.RunNodeJsCode(c, req.Code, req.Preload, &runner_types.RunnerOptions{
+			c.JSON(200, service.RunNodeJsCode(c.Request.Context(), req.Code, req.Preload, &runner_types.RunnerOptions{
 				EnableNetwork: req.EnableNetwork,
 			}))
 		default:

internal/core/runner/nodejs/nodejs.go

@@ -15,6 +15,9 @@ import (
 	"github.com/langgenius/dify-sandbox/internal/core/runner"
 	"github.com/langgenius/dify-sandbox/internal/core/runner/types"
 	"github.com/langgenius/dify-sandbox/internal/static"
+	"github.com/langgenius/dify-sandbox/internal/telemetry"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
 )
 
 type NodeJsRunner struct {
@@ -71,6 +74,11 @@ func (p *NodeJsRunner) Run(
 		)
 		cmd.Env = []string{}
 
+		// inject trace context into env (only if OTel enabled)
+		if static.GetDifySandboxGlobalConfigurations().Otel.Enable {
+			cmd.Env = append(cmd.Env, telemetry.InjectTraceEnv(ctx)...)
+		}
+
 		if len(configuration.AllowedSyscalls) > 0 {
 			cmd.Env = append(
 				cmd.Env,
@@ -80,11 +88,25 @@ func (p *NodeJsRunner) Run(
 			)
 		}
 
+		tr := otel.Tracer("dify-sandbox/runner")
+		_, span := tr.Start(ctx, "node.exec")
+		span.SetAttributes(
+			attribute.Int("code.length", len(code)),
+			attribute.Int64("timeout.ms", int64(timeout/time.Millisecond)),
+		)
 		// capture the output
 		err = output_handler.CaptureOutput(ctx, cmd)
 		if err != nil {
+			span.RecordError(err)
+			span.End()
 			return err
 		}
+		// end span when done
+		doneCh := output_handler.GetDone()
+		go func() {
+			<-doneCh
+			span.End()
+		}()
 
 		return nil
 	})

internal/core/runner/python/python.go

@@ -17,6 +17,9 @@ import (
 	"github.com/langgenius/dify-sandbox/internal/core/runner"
 	"github.com/langgenius/dify-sandbox/internal/core/runner/types"
 	"github.com/langgenius/dify-sandbox/internal/static"
+	"github.com/langgenius/dify-sandbox/internal/telemetry"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
 )
 
 type PythonRunner struct {
@@ -60,6 +63,11 @@ func (p *PythonRunner) Run(
 	cmd.Env = []string{}
 	cmd.Dir = LIB_PATH
 
+	// inject trace context into env for potential child instrumentation (only if OTel enabled)
+	if static.GetDifySandboxGlobalConfigurations().Otel.Enable {
+		cmd.Env = append(cmd.Env, telemetry.InjectTraceEnv(ctx)...)
+	}
+
 	if configuration.Proxy.Socks5 != "" {
 		cmd.Env = append(cmd.Env, fmt.Sprintf("HTTPS_PROXY=%s", configuration.Proxy.Socks5))
 		cmd.Env = append(cmd.Env, fmt.Sprintf("HTTP_PROXY=%s", configuration.Proxy.Socks5))
@@ -80,12 +88,29 @@ func (p *PythonRunner) Run(
 		)
 	}
 
-	err = outputHandler.CaptureOutput(ctx, cmd)
+	tr := otel.Tracer("dify-sandbox/runner")
+	ctx, span := tr.Start(ctx, "python.exec")
+	span.SetAttributes(
+		attribute.Int("code.length", len(code)),
+		attribute.Int64("timeout.ms", int64(timeout/time.Millisecond)),
+	)
+err = outputHandler.CaptureOutput(ctx, cmd)
 	if err != nil {
+		span.RecordError(err)
+		span.End()
 		return nil, nil, nil, err
 	}
 
-	return outputHandler.GetStdout(), outputHandler.GetStderr(), outputHandler.GetDone(), nil
+	// End span when process signals done; service layer will still have its parent span open.
+	doneCh := outputHandler.GetDone()
+	wrappedDone := make(chan bool)
+	go func() {
+		<-doneCh
+		span.End()
+		wrappedDone <- true
+	}()
+
+	return outputHandler.GetStdout(), outputHandler.GetStderr(), wrappedDone, nil
 }
 
 func (p *PythonRunner) InitializeEnvironment(code string, preload string, options *types.RunnerOptions) (string, string, error) {

internal/middleware/identity.go

@@ -0,0 +1,44 @@
+package middleware
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/langgenius/dify-sandbox/internal/static"
+	appLog "github.com/langgenius/dify-sandbox/internal/utils/log"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/trace"
+)
+
+// Identity middleware extracts tenant/user identity from path/header, attaches to context,
+// and sets tenant.id attribute on the current span when OpenTelemetry is enabled.
+func Identity() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		ctx := c.Request.Context()
+		// Prefer path param :tenant_id, fallback to headers
+		tenantID := c.Param("tenant_id")
+		if tenantID == "" {
+			tenantID = c.GetHeader("X-Tenant-ID")
+			if tenantID == "" {
+				tenantID = c.GetHeader("X-Tenant-Id")
+			}
+		}
+
+		userID := c.GetHeader("X-User-ID")
+		userType := c.GetHeader("X-User-Type")
+
+		if tenantID != "" || userID != "" || userType != "" {
+			ctx = appLog.WithIdentity(ctx, appLog.Identity{TenantID: tenantID, UserID: userID, UserType: userType})
+		}
+
+		// If tracing enabled, annotate the active HTTP span.
+		if static.GetDifySandboxGlobalConfigurations().Otel.Enable && tenantID != "" {
+			span := trace.SpanFromContext(ctx)
+			sc := span.SpanContext()
+			if sc.IsValid() {
+				span.SetAttributes(attribute.String("tenant.id", tenantID))
+			}
+		}
+
+		c.Request = c.Request.WithContext(ctx)
+		c.Next()
+	}
+}