[BUG]: DD_DOGSTATSD_PORT env var ignored when agent reports different port

[mkane1]

Tracer Version(s)

5.8.2

Go Version(s)

1.26.0

Bug Report

DD_DOGSTATSD_PORT env var gets ignored & overwritten by the reported port from the agent status http call. At my company, we have differenttexposed port 8215 v internal port 8125. Setting DD_DOGSTATSD_PORT=8215 is ignored in option.go function resolveDogstatsdAddr :

// use agent-reported address if it differs from the user-defined TCP-based protocol URI
// we have a valid host:port address; replace the port because the agent knows better
addr = net.JoinHostPort(host, strconv.Itoa(agentport))

We need a way to use the actual port that is configured via the env var. the java dd library allows this. the agent doesnt alwasy know better :)

Reproduction Code

n/a

Error Logs

n/a

Go Env Output

AR='ar' CC='clang' CGO_CFLAGS='-O2 -g' CGO_CPPFLAGS='' CGO_CXXFLAGS='-O2 -g' CGO_ENABLED='1' CGO_FFLAGS='-O2 -g' CGO_LDFLAGS='-O2 -g' CXX='clang++' GCCGO='gccgo' GO111MODULE='on' GOARCH='arm64' GOARM64='v8.0' GOAUTH='netrc' GOBIN='' GOCACHE='/Users/mk028p/Library/Caches/go-build' GOCACHEPROG='' GODEBUG='' GOENV='/Users/mk028p/Library/Application Support/go/env' GOEXE='' GOEXPERIMENT='' GOFIPS140='off' GOFLAGS='' GOGCCFLAGS='-fPIC -arch arm64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -ffile-prefix-map=/var/folders/yj/_m20ncq537v5t_80m98d1v080000gp/T/go-build1250627678=/tmp/go-build -gno-record-gcc-switches -fno-common' GOHOSTARCH='arm64' GOHOSTOS='darwin' GOINSECURE='' GOMOD='/Users/mk028p/Code/feeds/sps-cdf2-apis/go.mod' GOMODCACHE='/Users/mk028p/go/pkg/mod' GONOPROXY='github.com/wayfair-shared/' GONOSUMDB='github.com/wayfair-shared/' GOOS='darwin' GOPATH='/Users/mk028p/go' GOPRIVATE='github.com/wayfair-shared/*' GOPROXY='https://proxy.golang.org,direct' GOROOT='/Users/mk028p/go/pkg/mod/golang.org/toolchain@v0.0.1-go1.26.0.darwin-arm64' GOSUMDB='sum.golang.org' GOTELEMETRY='local' GOTELEMETRYDIR='/Users/mk028p/Library/Application Support/go/telemetry' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/Users/mk028p/go/pkg/mod/golang.org/toolchain@v0.0.1-go1.26.0.darwin-arm64/pkg/tool/darwin_arm64' GOVCS='' GOVERSION='go1.26.0' GOWORK='' PKG_CONFIG='pkg-config' (base) mk028p@ALT08070 sps-cdf2-apis %

[rarguelloF]

Hello @mkane1 and thanks for the detailed report.

I've confirmed the issue (the port is replaced by the one reported by the agent even if the user explicitly set it). We'll discuss internally the better way to move forward and fix it ASAP.

[rarguelloF]

Closing as #4575 has been merged. The fix will be included in the next release.

[mkane1]

TY so much!