added folder check

annotation.go

@@ -12,6 +12,11 @@ func WriteAnnotation(message string) {
 	annotationMutex.Lock()
 	defer annotationMutex.Unlock()
 
+	dir := "/home/agent"
+	if _, err := os.Stat(dir); os.IsNotExist(err) {
+		_ = os.Mkdir(dir, 0644)
+	}
+
 	f, _ := os.OpenFile("/home/agent/annotation.log",
 		os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
 

annotation_test.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"os"
+	"testing"
+)
+
+func TestWriteAnnotation(t *testing.T) {
+	type args struct {
+		message string
+	}
+	tests := []struct {
+		name string
+		args args
+	}{
+		{name: "writing_annotation", args: args{message: "annotation1"}},
+	}
+	_, ciTest := os.LookupEnv("CI")
+	if ciTest {
+		for _, tt := range tests {
+			t.Run(tt.name, func(t *testing.T) {
+				WriteAnnotation(tt.args.message)
+			})
+		}
+	}
+
+}