diff --git a/main.go b/main.go
new file mode 100644
index 0000000..fd47bb4
--- /dev/null
+++ b/main.go
@@ -0,0 +1,73 @@
+package main
+
+import (
+	"bufio"
+	"flag"
+	"fmt"
+	"log"
+	"os"
+	"regexp"
+	"strings"
+
+	"github.com/sirupsen/logrus"
+)
+
+func scanFile(file string, key string) string {
+	f, err := os.Open(file)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer f.Close()
+
+	scanner := bufio.NewScanner(f)
+
+	var val string
+
+	for scanner.Scan() {
+		logrus.Debug("Check whether file: ", file, " and line: ", scanner.Text(), " contains key: ", key)
+		if strings.Contains(scanner.Text(), key+":") {
+			val = value(scanner.Text())
+		}
+	}
+
+	if err := scanner.Err(); err != nil {
+		log.Fatal(err)
+	}
+
+	return val
+}
+
+func value(keyValue string) string {
+	re := regexp.MustCompile("^[a-z-_]+: (.*)$")
+	match := re.FindStringSubmatch(keyValue)
+
+	if len(match) == 0 {
+		log.Fatal("Cannot extract value for key, but was: '", keyValue,
+			"' please check whether the regex matches the key")
+	}
+
+	logrus.Debug("MATCH: ", match)
+
+	return match[1]
+}
+
+func main() {
+	key := flag.String("key", "key", "Specify the key")
+	yamlFile := flag.String("yamlFile", "file.yaml", "Path to a yaml file")
+	debug := flag.Bool("debug", false, "Whether debugging should be enabled")
+
+	flag.Parse()
+
+	if *debug {
+		logrus.SetLevel(logrus.DebugLevel)
+	}
+
+	logrus.Debug("key: ", *key)
+	logrus.Debug("yamlFile: ", *yamlFile)
+
+	value := scanFile(*yamlFile, *key)
+	if value == "" {
+		log.Fatal("File: ", *yamlFile, " does not contain key: ", *key)
+	}
+	fmt.Println(value)
+}
diff --git a/main_test.go b/main_test.go
new file mode 100644
index 0000000..cd3627b
--- /dev/null
+++ b/main_test.go
@@ -0,0 +1,20 @@
+package main
+
+import "testing"
+
+func TestScanFile(t *testing.T) {
+	keyValue := map[string]string{
+		"a":            "abc",
+		"b":            "def",
+		"c":            "ghi",
+		"under_scores": "ensure that keys may contain an underscore",
+	}
+
+	for key, value := range keyValue {
+		expected := value
+		actual := scanFile("test.yaml", key)
+		if expected != actual {
+			t.Errorf("Value was incorrect, got: %s, want: %s.", actual, expected)
+		}
+	}
+}
diff --git a/test.yaml b/test.yaml
new file mode 100644
index 0000000..0abba26
--- /dev/null
+++ b/test.yaml
@@ -0,0 +1,4 @@
+a: abc
+b: def
+c: ghi
+under_scores: ensure that keys may contain an underscore
\ No newline at end of file