def genServerRpm(d, verbosity=0):
    """ generates server's SSL key set RPM """

    serverKeyPairDir = os.path.join(d['--dir'], d['--set-hostname'])

    server_key_name = os.path.basename(d['--server-key'])
    server_key = os.path.join(serverKeyPairDir, server_key_name)

    server_cert_name = os.path.basename(d['--server-cert'])
    server_cert = os.path.join(serverKeyPairDir, server_cert_name)

    server_cert_req_name = os.path.basename(d['--server-cert-req'])
    server_cert_req = os.path.join(serverKeyPairDir, server_cert_req_name)

    server_rpm_name = os.path.basename(d['--server-rpm'])
    server_rpm = os.path.join(serverKeyPairDir, server_rpm_name)

    server_cert_dir = d['--server-cert-dir']

    postun_scriptlet = os.path.join(d['--dir'], 'postun.scriptlet')

    genServerRpm_dependencies(d)

    if verbosity >= 0:
        sys.stderr.write("\n...working...\n")

    # check for new installed RPM.
    # Work out the release number.
    hdr = getInstalledHeader(server_rpm_name)

    # find RPMs in the directory as well.
    filenames = glob.glob("%s-[0-9]*.noarch.rpm" % server_rpm)
    if filenames:
        filename = sortRPMs(filenames)[-1]
        h = get_package_header(filename)
        if hdr is None:
            hdr = h
        else:
            comp = hdrLabelCompare(h, hdr)
            if comp > 0:
                hdr = h

    ver, rel = '1.0', '0'
    if hdr is not None:
        ver = str(hdr['version'].decode('utf-8'))
        rel = str(hdr['release'].decode('utf-8'))

    # bump the release - and let's not be too smart about it
    #                    assume the release is a number.
    if rel:
        rel = str(int(rel) + 1)

    description = SERVER_RPM_SUMMARY + """
Best practices suggests that this RPM should only be installed on the web
server with this hostname: %s
""" % d['--set-hostname']

    # build the server RPM
    args = [
        'katello-certs-gen-rpm',
        "--name %s --version %s --release %s --packager %s --vendor %s ",
        "--group 'Applications/System' --summary %s --description %s --postun %s ",
        server_cert_dir + "/private/%s:0600=%s ",
        server_cert_dir + "/certs/%s=%s ", server_cert_dir + "/certs/%s=%s "
    ]

    args = " ".join(args)

    args = args % (repr(server_rpm_name), ver, rel, repr(d['--rpm-packager']),
                   repr(d['--rpm-vendor']), repr(SERVER_RPM_SUMMARY),
                   repr(description), repr(cleanupAbsPath(postun_scriptlet)),
                   repr(server_key_name), repr(
                       cleanupAbsPath(server_key)), repr(server_cert_req_name),
                   repr(cleanupAbsPath(server_cert_req)),
                   repr(server_cert_name), repr(cleanupAbsPath(server_cert)))
    serverRpmName = "%s-%s-%s" % (server_rpm, ver, rel)

    if verbosity >= 0:
        print("""
Generating web server's SSL key pair/set RPM:
    %s.src.rpm
    %s.noarch.rpm""" % (serverRpmName, serverRpmName))
        if verbosity > 1:
            print("Commandline:", args)

    if verbosity >= 4:
        print('Current working directory:', os.getcwd())
        print("Writing postun_scriptlet:", postun_scriptlet)
    with open(postun_scriptlet, 'w') as scriptlet_fp:
        scriptlet_fp.write(POST_UNINSTALL_SCRIPT)

    _disableRpmMacros()
    cwd = chdir(serverKeyPairDir)
    try:
        ret, out_stream, err_stream = rhn_popen(args)
    finally:
        chdir(cwd)
        _reenableRpmMacros()
        os.unlink(postun_scriptlet)

    out = out_stream.read().decode('utf-8')
    out_stream.close()
    err = err_stream.read().decode('utf-8')
    err_stream.close()

    if ret or not os.path.exists("%s.noarch.rpm" % serverRpmName):
        raise GenServerRpmException("web server's SSL key set RPM generation "
                                    "failed:\n%s\n%s" % (out, err))
    if verbosity > 2:
        if out:
            print("STDOUT:", out)
        if err:
            print("STDERR:", err)

    os.chmod('%s.noarch.rpm' % serverRpmName, 0o600)

    # write-out latest.txt information
    latest_txt = os.path.join(serverKeyPairDir, 'latest.txt')
    with open(latest_txt, 'w') as latest_fp:
        latest_fp.write('%s.noarch.rpm\n' % os.path.basename(serverRpmName))
        latest_fp.write('%s.src.rpm\n' % os.path.basename(serverRpmName))
    os.chmod(latest_txt, 0o600)

    if verbosity >= 0:
        print("""
Deploy the server's SSL key pair/set RPM:
    (NOTE: the Katello installer may do this step for you.)
    The "noarch" RPM needs to be deployed to the machine working as a
    web server, or RHN Satellite, or RHN Proxy.
    Presumably %s.""" % repr(d['--set-hostname']))

    return "%s.noarch.rpm" % serverRpmName
def genCaRpm(d, verbosity=0):
    """ generates ssl cert RPM. """

    ca_cert_path = d['--ca-cert-dir']
    ca_cert_name = os.path.basename(d['--ca-cert'])
    ca_cert = os.path.join(d['--dir'], ca_cert_name)
    ca_cert_rpm_name = os.path.basename(d['--ca-cert-rpm'])
    ca_cert_rpm = os.path.join(d['--dir'], ca_cert_rpm_name)

    genCaRpm_dependencies(d)
    appendOtherCACerts(d, ca_cert)

    if verbosity >= 0:
        sys.stderr.write("\n...working...")
    # Work out the release number.
    hdr = getInstalledHeader(ca_cert_rpm)

    # find RPMs in the directory
    filenames = glob.glob("%s-[0-9]*.noarch.rpm" % ca_cert_rpm)
    if filenames:
        filename = sortRPMs(filenames)[-1]
        h = get_package_header(filename)
        if hdr is None:
            hdr = h
        else:
            comp = hdrLabelCompare(h, hdr)
            if comp > 0:
                hdr = h

    ver, rel = '1.0', '0'
    if hdr is not None:
        ver = str(hdr['version'].decode('utf-8'))
        rel = str(hdr['release'].decode('utf-8'))

    # bump the release - and let's not be too smart about it
    #                    assume the release is a number.
    if rel:
        rel = str(int(rel) + 1)

    # build the CA certificate RPM
    args = [
        'katello-certs-gen-rpm', "--name %s", "--version %s", "--release %s",
        "--packager %s", "--vendor %s", "--group 'Applications/System'",
        "--summary %s", "--description %s",
        os.path.join(ca_cert_path, "%s=%s")
    ]

    args = " ".join(args)

    args = args % ((repr(ca_cert_rpm_name), ver, rel, repr(
        d['--rpm-packager']), repr(d['--rpm-vendor']),
                    repr(CA_CERT_RPM_SUMMARY), repr(CA_CERT_RPM_SUMMARY),
                    repr(ca_cert_name), repr(cleanupAbsPath(ca_cert))))

    clientRpmName = '%s-%s-%s' % (ca_cert_rpm, ver, rel)
    if verbosity >= 0:
        print("""
Generating CA public certificate RPM:
    %s.src.rpm
    %s.noarch.rpm""" % (clientRpmName, clientRpmName))
        if verbosity > 1:
            print("Commandline:", args)

    _disableRpmMacros()
    cwd = chdir(d['--dir'])
    try:
        ret, out_stream, err_stream = rhn_popen(args)
    except Exception:
        chdir(cwd)
        _reenableRpmMacros()
        raise
    chdir(cwd)
    _reenableRpmMacros()

    out = out_stream.read().decode('utf-8')
    out_stream.close()
    err = err_stream.read().decode('utf-8')
    err_stream.close()

    if ret or not os.path.exists("%s.noarch.rpm" % clientRpmName):
        raise GenCaCertRpmException("CA public SSL certificate RPM generation "
                                    "failed:\n%s\n%s" % (out, err))
    if verbosity > 2:
        if out:
            print("STDOUT:", out)
        if err:
            print("STDERR:", err)
    os.chmod('%s.noarch.rpm' % clientRpmName, 0o644)

    # write-out latest.txt information
    latest_txt = os.path.join(d['--dir'], 'latest.txt')
    with open(latest_txt, 'w') as latest_fp:
        latest_fp.write('%s\n' % ca_cert_name)
        latest_fp.write('%s.noarch.rpm\n' % os.path.basename(clientRpmName))
        latest_fp.write('%s.src.rpm\n' % os.path.basename(clientRpmName))
    os.chmod(latest_txt, 0o644)

    if verbosity >= 0:
        print("""
Make the public CA certficate publically available:
    (NOTE: the Katello installer may do this step for you.)
    The "noarch" RPM and raw CA certificate can be made publically accessible
    by copying it to the /var/www/html/pub directory of your Katello server."""
              )

    return '%s.noarch.rpm' % clientRpmName