#!/usr/bin/python3 -cimport os, sys; os.execv(os.path.dirname(sys.argv[1]) + "/../common/pywrap", sys.argv)## Copyright (C) 2015 Red Hat, Inc.# SPDX-License-Identifier: LGPL-2.1-or-laterimport storagelibimport testlib@testlib.skipImage("No support for multipath", "debian-*", "ubuntu-*", "arch")@testlib.skipImage("multipath support not installed", "*-bootc")class TestStorageMultipath(storagelib.StorageCase):def testBasic(self):m = self.machineb = self.browserdef check_free_block_devices(expected):blocks = list(b.eval_js("ph_texts('#dialog [data-field=\"disks\"] .select-space-details')"))self.assertEqual(len(blocks), len(expected))for i in range(len(expected)):self.assertIn(expected[i], blocks[i])# At least on Fedora 27, multipath only looks at SCSI_IDENT_# and ID_WWN properties, so we install a custom udev rule to# set ID_WWN to something that can identify multipathed devices.#m.write("/etc/udev/rules.d/99-fake-wwn.rules", 'SUBSYSTEM=="block", ENV{ID_WWN}="$env{ID_SCSI_SERIAL}"\n')m.execute("udevadm control --reload")m.execute("udevadm trigger")self.login_and_go("/storage")b.eval_js("""ph_texts = function (sel) {return ph_select(sel).map(function (e) { return e.textContent });}""")# Add a diskinfo1 = m.add_disk("10M", serial="MYSERIAL")dev1 = "/dev/" + info1["dev"]self.click_card_row("Storage", name=dev1)b.wait_text(self.card_desc("Hard Disk Drive", "Device file"), dev1)# Add another disk with the same serial, which fools# multipathd into treating it as another path to the first# disk. Since we never actually write to it, this is fine.# The primary device file should disappear and multipathed# devices should be listed.info2 = m.add_disk("10M", serial="MYSERIAL")dev2 = "/dev/" + info2["dev"]b.wait_text(self.card_desc("Hard Disk Drive", "Device file"), "-")b.wait_in_text(self.card_desc("Hard Disk Drive", "Multipathed devices"), dev1)b.wait_in_text(self.card_desc("Hard Disk Drive", "Multipathed devices"), dev2)# Check that only one is offered as a free block deviceb.go("#/")self.click_dropdown(self.card_header("Storage"), "Create LVM2 volume group")self.dialog_wait_open()check_free_block_devices(["/dev/sda"])self.dialog_cancel()self.dialog_wait_close()# Switch on multipathd. A primary device should appear.b.wait_visible(".pf-m-danger:contains('There are devices with multiple paths on the system, but')")b.click("button:contains('Start multipath')")b.wait_not_present(".pf-m-danger:contains('There are devices with multiple paths on the system, but')")b.wait_visible(self.card_row("Storage", name="/dev/mapper/mpatha"))# Check that (exactly) the primary device is offered as freeself.click_dropdown(self.card_header("Storage"), "Create LVM2 volume group")self.dialog_wait_open()check_free_block_devices(["/dev/mapper/mpatha"])self.dialog_cancel()self.dialog_wait_close()if __name__ == '__main__':testlib.test_main()