Merging upstream version 1.45.3+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 39 insertions, 0 deletions

diff --git a/src/go/collectors/go.d.plugin/agent/hostinfo/hostinfo.go b/src/go/collectors/go.d.plugin/agent/hostinfo/hostinfo.go
new file mode 100644
index 000000000..48508a1c8
--- /dev/null
+++ b/src/go/collectors/go.d.plugin/agent/hostinfo/hostinfo.go
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package hostinfo
+
+import (
+	"bytes"
+	"context"
+	"os"
+	"os/exec"
+	"time"
+)
+
+var Hostname = getHostname()
+
+func getHostname() string {
+	path, err := exec.LookPath("hostname")
+	if err != nil {
+		return ""
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second*2)
+	defer cancel()
+
+	bs, err := exec.CommandContext(ctx, path).Output()
+	if err != nil {
+		return ""
+	}
+
+	return string(bytes.TrimSpace(bs))
+}
+
+var (
+	envKubeHost = os.Getenv("KUBERNETES_SERVICE_HOST")
+	envKubePort = os.Getenv("KUBERNETES_SERVICE_PORT")
+)
+
+func IsInsideK8sCluster() bool {
+	return envKubeHost != "" && envKubePort != ""
+}