tmpdir, err := ctx.CreateTmpDirectory("ca-custom-root")
	if err != nil {
		return err
	}

	// Create testing certs using runtime namespace.
	err = generateCerts(tmpdir, customNs.Get().Name())
	if err != nil {
		return err
	}
	rootCert, err := cert.LoadCert(path.Join(tmpdir, "root-cert.pem"))
	if err != nil {
		return err
	}