def test_apply_params_to_empty_profile(self):
"""test applying params to empty profile"""
params = {
"sysctl": [{
"name": "fs.epoll.max_user_watches",
"value": 785592
}],
"sysfs": [{
"name": "/sys/kernel/debug/x86/pti_enabled",
"value": 0
}],
"vm": [{
"name": "transparent_hugepages",
"value": "never"
}],
"bootloader": [{
"name":
"cmdline",
"value": [
{
"name": "spectre_v2",
"value": "off"
},
{
"name": "nopti"
},
{
"name": "panic",
"value": 10001
},
{
"name": "splash"
},
],
}],
}
# pylint: disable=blacklisted-name
tuned_app, _ = kernel_settings.load_current_profile(
self.tuned_config, "kernel_settings", self.logger)
current_profile = tuned_app.daemon.profile
errlist = kernel_settings.validate_and_digest(params)
self.assertEqual(len(errlist), 0)
changestatus, reboot_required = kernel_settings.apply_params_to_profile(
params, current_profile, False)
self.assertEqual(kernel_settings.CHANGES, changestatus)
sysctl = {"fs.epoll.max_user_watches": "785592"}
self.assertEqual(sysctl, dict(current_profile.units["sysctl"].options))
sysfs = {"/sys/kernel/debug/x86/pti_enabled": "0"}
self.assertEqual(sysfs, dict(current_profile.units["sysfs"].options))
vm = {"transparent_hugepages": "never"}
self.assertEqual(vm, current_profile.units["vm"].options)
cmdline = {"cmdline": "spectre_v2=off nopti panic=10001 splash"}
self.assertEqual(cmdline,
dict(current_profile.units["bootloader"].options))
self.assertTrue(reboot_required)
# test idempotency
changestatus, reboot_required = kernel_settings.apply_params_to_profile(
params, current_profile, False)
self.assertEqual(kernel_settings.NOCHANGES, changestatus)
self.assertFalse(reboot_required)
def test_validate_and_digest(self):
"""do various tests of validate_and_digest"""
params = {"section": {"bogus": "dict"}}
errlist = kernel_settings.validate_and_digest(params)
self.assertEqual(len(errlist), 1)
self.assertEqual(
errlist[0],
("Error: to remove the section [section] specify "
"the value {'state': 'empty'}"),
)
params = {"section": 0}
errlist = kernel_settings.validate_and_digest(params)
self.assertEqual(len(errlist), 1)
self.assertEqual(
errlist[0],
"Error: section [section] value must be a dict or a list")
params = {"section": [0]}
errlist = kernel_settings.validate_and_digest(params)
self.assertEqual(len(errlist), 1)
self.assertEqual(
errlist[0],
"Error: section [section] item value [0] is not a dict")
params = {"section": [{"previous": "bogus"}]}
errlist = kernel_settings.validate_and_digest(params)
self.assertEqual(len(errlist), 1)
self.assertEqual(
errlist[0],
"Error: section [section] item has invalid value for 'previous' [bogus]",
)
params = {"section": [{"name": "name", "value": "value"}]}
errlist = kernel_settings.validate_and_digest(params)
self.assertEqual(len(errlist), 0)
params = {"section": [{"previous": "replaced"}]}
errlist = kernel_settings.validate_and_digest(params)
self.assertEqual(len(errlist), 0)
self.assertTrue(params["__section_to_replace"]["section"])
def test_write_profile(self):
"""test applying params and writing new profile"""
params = {
"sysctl": [{
"name": "fs.epoll.max_user_watches",
"value": 785592
}],
"sysfs": [{
"name": "/sys/kernel/debug/x86/pti_enabled",
"value": 0
}],
"vm": [{
"name": "transparent_hugepages",
"value": "never"
}],
"bootloader": [{
"name":
"cmdline",
"value": [
{
"name": "spectre_v2",
"value": "off"
},
{
"name": "nopti"
},
{
"name": "panic",
"value": 10001
},
{
"name": "splash"
},
],
}],
}
errlist = kernel_settings.validate_and_digest(params)
self.assertEqual(len(errlist), 0)
tuned_app, _ = kernel_settings.load_current_profile(
self.tuned_config, "kernel_settings", self.logger)
current_profile = tuned_app.daemon.profile
changestatus, reboot_required = kernel_settings.apply_params_to_profile(
params, current_profile, False)
self.assertEqual(kernel_settings.CHANGES, changestatus)
self.assertTrue(reboot_required)
kernel_settings.write_profile(current_profile)
fname = os.path.join(tuned.consts.LOAD_DIRECTORIES[-1],
"kernel_settings", "tuned.conf")
expected_lines = [
"# File managed by Ansible - DO NOT EDIT",
"[main]",
"summary = kernel settings",
"[sysctl]",
"fs.epoll.max_user_watches = 785592",
"[sysfs]",
"/sys/kernel/debug/x86/pti_enabled = 0",
"[vm]",
"transparent_hugepages = never",
"[bootloader]",
"cmdline = spectre_v2=off nopti panic=10001 splash",
]
expected = ConfigObj(expected_lines)
actual = None
with open(fname, "r") as ff:
actual = ConfigObj(ff)
self.assertEqual(expected, actual)
self.assertEqual(expected.initial_comment, actual.initial_comment)
def test_apply_params_and_ops_to_profile(self):
"""test applying params and operations to a profile"""
params = {
"sysctl": [
{
"name": "fs.epoll.max_user_watches",
"value": 785592
},
{
"name": "kernel.threads-max",
"state": "absent"
},
{
"name": "fs.file-max",
"state": "absent"
},
],
"sysfs": [
{
"previous": "replaced"
},
{
"name": "/sys/kernel/debug/x86/pti_enabled",
"value": 0
},
],
"vm": {
"state": "empty"
},
"bootloader": [{
"name":
"cmdline",
"value": [
{
"name": "someother",
"value": "value"
},
{
"name": "spectre_v2",
"value": "off"
},
{
"name": "nopti"
},
{
"name": "panic",
"state": "absent"
},
{
"name": "splash",
"state": "absent"
},
],
}],
}
paramsorig = copy.deepcopy(params)
tuned_app, _ = kernel_settings.load_current_profile(
self.tuned_config, "basic_settings", self.logger)
current_profile = tuned_app.daemon.profile
errlist = kernel_settings.validate_and_digest(params)
self.assertEqual(len(errlist), 0)
changestatus, reboot_required = kernel_settings.apply_params_to_profile(
params, current_profile, False)
self.assertEqual(kernel_settings.CHANGES, changestatus)
sysctl = {
"fs.epoll.max_user_watches": "785592",
"vm.max_map_count": "65530"
}
self.assertEqual(sysctl, dict(current_profile.units["sysctl"].options))
sysfs = {"/sys/kernel/debug/x86/pti_enabled": "0"}
self.assertEqual(sysfs, dict(current_profile.units["sysfs"].options))
self.assertNotIn("vm", current_profile.units)
cmdline = {"cmdline": "spectre_v2=off nopti someother=value"}
self.assertEqual(cmdline,
dict(current_profile.units["bootloader"].options))
self.assertTrue(reboot_required)
# idempotency
errlist = kernel_settings.validate_and_digest(paramsorig)
self.assertEqual(len(errlist), 0)
changestatus, reboot_required = kernel_settings.apply_params_to_profile(
paramsorig, current_profile, False)
self.assertEqual(kernel_settings.NOCHANGES, changestatus)
self.assertFalse(reboot_required)