provisioning: only update dashboard if hash of json changed

pkg/util/md5_test.go

@@ -0,0 +1,17 @@
+package util
+
+import "testing"
+
+func TestMd5Sum(t *testing.T) {
+	input := "dont hash passwords with md5"
+
+	have, err := Md5SumString(input)
+	if err != nil {
+		t.Fatal("expected err to be nil")
+	}
+
+	want := "2d6a56c82d09d374643b926d3417afba"
+	if have != want {
+		t.Fatalf("expected: %s got: %s", want, have)
+	}
+}