Merge branch 'develop/kaniko' into 'master'

write image-hash.txt containing digest of manifest

See merge request !2

helper/helper.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"regexp"
 	"strings"
 )
 
@@ -65,3 +66,21 @@ func getImageDigest() (string, error) {
 
 	return strings.TrimSpace(string(content)), nil
 }
+
+func getManifestDigest() (string, error) {
+	filePath := "./manifest-digest.txt"
+	content, err := os.ReadFile(filePath)
+	if err != nil {
+		return "", fmt.Errorf("failed to read file: %w", err)
+	}
+
+	err = os.Remove(filePath)
+	if err != nil {
+		return "", fmt.Errorf("failed to delete file: %w", err)
+	}
+
+	re := regexp.MustCompile(`sha256:[a-f0-9]{64}`)
+	match := re.FindString(string(content))
+
+	return match, nil
+}

helper/main.go

@@ -84,5 +84,11 @@ func buildManifest() {
 		os.Exit(1)
 	}
 	fmt.Println("Generating and uploading manifest")
-	executeCmd("manifest-tool push from-spec ./imagemanifest.yaml")
+	executeCmd("manifest-tool push from-spec ./imagemanifest.yaml | tee manifest-digest.txt")
+
+	manifest, err := getManifestDigest()
+	if err != nil {
+		fmt.Println("Failed retreiving image manifest: ", err.Error())
+	}
+	os.WriteFile("./image-hash.txt", []byte(manifest), 0777)
 }