From 2f17a1e8c67e89c6a794444948fe486af0b84e66 Mon Sep 17 00:00:00 2001
From: Seth Hoenig <seth.a.hoenig@gmail.com>
Date: Wed, 24 Aug 2022 18:07:31 +0000
Subject: [PATCH] backport of commit 24a1c48f470885a245212247eac3c1d576d65b1f

---
 .changelog/14297.txt    |  3 +++
 client/logmon/plugin.go | 19 ++++++++++++-------
 2 files changed, 15 insertions(+), 7 deletions(-)
 create mode 100644 .changelog/14297.txt

diff --git a/.changelog/14297.txt b/.changelog/14297.txt
new file mode 100644
index 000000000000..207eb3858901
--- /dev/null
+++ b/.changelog/14297.txt
@@ -0,0 +1,3 @@
+```release-note:bug
+client/logmon: fixed a bug where logmon cannot find nomad executable
+```
diff --git a/client/logmon/plugin.go b/client/logmon/plugin.go
index 5d97b751d104..a21777357cb0 100644
--- a/client/logmon/plugin.go
+++ b/client/logmon/plugin.go
@@ -5,22 +5,27 @@ import (
 	"os"
 	"os/exec"
 
-	hclog "github.com/hashicorp/go-hclog"
-	plugin "github.com/hashicorp/go-plugin"
+	"github.com/hashicorp/go-hclog"
+	"github.com/hashicorp/go-plugin"
 	"github.com/hashicorp/nomad/client/logmon/proto"
 	"github.com/hashicorp/nomad/plugins/base"
 	"google.golang.org/grpc"
 )
 
+var bin = getBin()
+
+func getBin() string {
+	b, err := os.Executable()
+	if err != nil {
+		panic(err)
+	}
+	return b
+}
+
 // LaunchLogMon launches a new logmon or reattaches to an existing one.
 // TODO: Integrate with base plugin loader
 func LaunchLogMon(logger hclog.Logger, reattachConfig *plugin.ReattachConfig) (LogMon, *plugin.Client, error) {
 	logger = logger.Named("logmon")
-	bin, err := os.Executable()
-	if err != nil {
-		return nil, nil, err
-	}
-
 	conf := &plugin.ClientConfig{
 		HandshakeConfig: base.Handshake,
 		Plugins: map[string]plugin.Plugin{