def make_default_min_hwe_kernel_field(*args, **kwargs):
"""Build and return the default_min_hwe_kernel field."""
kernel_choices = [("", "--- No minimum kernel ---")]
# Global choices are limited to the commissioning release as min_hwe_kernel
# is used during commissioning.
commissioning_series = Config.objects.get_config(
"commissioning_distro_series"
)
if commissioning_series:
commissioning_os_release = "ubuntu/" + commissioning_series
kernel_choices += list_hwe_kernel_choices(
[
kernel
for kernel in BootResource.objects.get_usable_hwe_kernels(
commissioning_os_release
)
if release_a_newer_than_b(kernel, commissioning_series)
]
)
field = forms.ChoiceField(
initial=Config.objects.get_config("default_min_hwe_kernel"),
choices=kernel_choices,
error_messages={
"invalid_choice": compose_invalid_choice_text(
"default_min_hwe_kernel", kernel_choices
)
},
**kwargs
)
return field
def min_hwe_kernels(self, params):
"""Return all supported min_hwe_kernels.
This filters out all non-generic kernel flavors. The user can select
the flavor during deployment.
"""
return list_hwe_kernel_choices(
BootResource.objects.get_supported_hwe_kernels())
def hwe_kernels(self, params):
"""Return all supported hwe_kernels."""
return list_hwe_kernel_choices(
BootResource.objects.get_usable_hwe_kernels())
