From b8135beab30ae6273f0a9acc93842e487ffb0d6c Mon Sep 17 00:00:00 2001
From: Alex Shtin <alex@shtin.com>
Date: Mon, 14 Feb 2022 18:32:05 -0800
Subject: [PATCH] Log build CGO_ENABLED state

---
 build/build.go     |  5 +++++
 build/cgo/cgo.go   | 31 +++++++++++++++++++++++++++++++
 build/cgo/nocgo.go | 31 +++++++++++++++++++++++++++++++
 cmd/server/main.go |  5 +++++
 4 files changed, 72 insertions(+)
 create mode 100644 build/cgo/cgo.go
 create mode 100644 build/cgo/nocgo.go

diff --git a/build/build.go b/build/build.go
index 5225a22fba70..4f1ddf53f674 100644
--- a/build/build.go
+++ b/build/build.go
@@ -28,6 +28,8 @@ import (
 	"embed"
 	"encoding/json"
 	"time"
+
+	"go.temporal.io/server/build/cgo"
 )
 
 const (
@@ -40,6 +42,8 @@ type (
 		GitRevision string
 		// BuildTimeUnix is the seconds since epoch representing the date this build was created.
 		BuildTimeUnix int64
+		// CgoEnabled indicates whether cgo was enabled when this build was created.
+		CgoEnabled bool
 	}
 )
 
@@ -53,6 +57,7 @@ func init() {
 	InfoData = Info{
 		GitRevision:   "unknown",
 		BuildTimeUnix: 0,
+		CgoEnabled:    cgo.Enabled,
 	}
 
 	buildInfoDataJson, err := buildInfoFs.ReadFile(buildInfoDataFile)
diff --git a/build/cgo/cgo.go b/build/cgo/cgo.go
new file mode 100644
index 000000000000..161df7613ae7
--- /dev/null
+++ b/build/cgo/cgo.go
@@ -0,0 +1,31 @@
+// The MIT License
+//
+// Copyright (c) 2020 Temporal Technologies Inc.  All rights reserved.
+//
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+//go:build cgo
+
+package cgo
+
+const (
+	Enabled = true
+)
diff --git a/build/cgo/nocgo.go b/build/cgo/nocgo.go
new file mode 100644
index 000000000000..1ea0850fb0e1
--- /dev/null
+++ b/build/cgo/nocgo.go
@@ -0,0 +1,31 @@
+// The MIT License
+//
+// Copyright (c) 2020 Temporal Technologies Inc.  All rights reserved.
+//
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+//go:build !cgo
+
+package cgo
+
+const (
+	Enabled = false
+)
diff --git a/cmd/server/main.go b/cmd/server/main.go
index 9398ef885681..c1d794de81b1 100644
--- a/cmd/server/main.go
+++ b/cmd/server/main.go
@@ -47,6 +47,10 @@ import (
 	"go.temporal.io/server/temporal"
 )
 
+var (
+	cgoEnabled = false
+)
+
 // main entry point for the temporal server
 func main() {
 	app := buildCLI()
@@ -139,6 +143,7 @@ func buildCLI() *cli.App {
 					tag.NewStringTag("platform", runtime.GOARCH),
 					tag.NewStringTag("go-version", runtime.Version()),
 					tag.NewStringTag("server-version", headers.ServerVersion),
+					tag.NewBoolTag("cgo-enabled", build.InfoData.CgoEnabled),
 				)
 
 				var dynamicConfigClient dynamicconfig.Client