Allow the sector size to be specified on the partition table level by
introducing a new `SectorSize` field. Modify the conversion helpers
to use that new field with a fallback to default sector size in case
the field is `0`.
Add simple helper methods that convert between bytes and sectors. This
is a method of `PartitionTable`, since the sector size can in theory
be per partition table and this prepares for that case.
Modify the signature of `CreatePartitionTable` so that it is
possible to return errors from the function. This is not yet
used, but will be in the near future. Change all call sites
accordingly: in most cases we can just bubble up the error.
Instead of generating the UUIDs directly when new partitions are
created and separately for the boot and root partition, use the
new `PartitionTable.GenerateUUIDs` method to generate all UUIDs
that are missing in one go. Since this changes the order in
which the uuids are generated the test manifests UUIDs changed
and needed to be updated:
I used to following patch to get the updated manifests:
--- a/internal/distro/distro_test_common/distro_test_common.go
+++ b/internal/distro/distro_test_common/distro_test_common.go
@@ -105,6 +105,12 @@ func TestDistro_Manifest(t *testing.T, pipelinePath string, prefix string, regis
require.NoError(t, err)
diff := cmp.Diff(expected, actual)
+ if diff != "" {
+ tt.Manifest = got
+ data, _ := json.MarshalIndent(tt, "", " ")
+ path := filepath.Join("/tmp", filepath.Base(fileName))
+ _ = ioutil.WriteFile(path, data, 0644)
+ }
require.Emptyf(t, diff, "Distro: %s\nArch: %s\nImage type: %s\nTest case file: %s\n", d.Name(), arch.Name(), imageType.Name(), fileName)
}
})
And the following fish snippet to update the existing ones, using the
jq and sponge utilities:
for file in /tmp/rhel_85-*.json
set filename (basename $file)
jq -s '.[0].manifest = .[1].manifest | .[0]' test/data/manifests/$filename /tmp/$filename | sponge test/data/manifests/$filename
end
Add a new helper to `PartitionTable` that generates all necessary
uuids for uuid fields that are empty but should not. These are
the file system uuids and, in case of a GPT layout, partition ids.
Pass the `basePartitionTable` argument of `CreatePartitionTable`.
Now that we clone the partition table at the beginning of the
method there is no need to pass a copy of the partition table.
Simple wrapper around FindFilesystemForMountpoint that will
return a boolean if a filesystem with the given mountpoint
is defined in the partition table.
The partition table is modified `CreatePartitionTable`, which is
not a problem for the table itself since it is currently passed
by value. However, all shallow copies share the same file system
pointers and `CreatePartitionTable` will modify those as well.
As there is a data race where two concurrent thread modify the
content of the Fileystem object at the same time before writing
the uuids out to the manifest via the stage options and thus the
resulting manifest would be broken.
Therefore we use the new `Clone` methods to make a dee@ copy of
the `PartitionTable` object in the `CreatePartitionTable` method;
This will allow us to pass the `basePartitionTable` object by val
and also return the resulting `PartitionTable` as a pointer.
The `PartitionTable` object contains an array of `Partitions`, which
is shared among all shallow copies of `PartitionTable` instances, as
when it is used via a value receiver in method calls. The individual
objects are thus not fully isolated since modifications of array
elements, or in some cases modifications to the array itself, are
shared and visible between all shallow `PartitionTable` copies. Thus
use a pointer receiver for all methods of `PartitionTable` to make
it explicit that modifications will affect other objects.
What this function is actually doing is to create a filesystem,
together with a new partition; for LVM that filesystem could
also be created on a new logical volume though.
The previous commit made sure that `PartitionTable.RootPartition`
is indeed returning the pointer partition object inside the array
of the `PartitionTable`. Thus changes to the returned object will
now directly affect the object and thus there is no need to call
`PartitionTable.updateRootPartition` anymore.
When we iterate over the partitions to find the root partition,
we are getting the partition by value so even if we return a
pointer to that then, it is actually a pointer duplicated object.
Return the pointer to the actual partition object instead.
In various places we are interested in the root and boot file-
systems. Currently those were accessed via by retrieving the
partition that contain them and the accessing the filesystem
member. Add accessors to `PartitionTable` that directly return
the needed filesystem. This will help if the file system is
stored inside a container like LVM or LUKS instead of directly
on a partition.
thozza pointed out that `int` is platform dependent which results in
a fs size that is too small for 32-bit machines. This commit changes
the filesystem custimizations to use `uint64` instead of `int`
Specifying the boot partition filesystem UUID in grub2 stage is required
in case the `/boot` mountpoint is on a separate partition. This is the
case of RHEL-8.5 and RHEL-9.0 `ami` and `ec2` images.
Extend `disk.PartitionTable` with a new `BootPartition` method, which
returns a pointer to partition with FS mountpoint `/boot` if there is
such partition, or `nil` otherwise.
Extend the RHEL-8.5 and RHEL-9.0 code creating options structure for
grub2 osbuild stage to include the boot partition in case it has been
provided.
Signed-off-by: Tomas Hozza <thozza@redhat.com>
Moved the function that searches for the boot partition index to the
PartitionTable struct as a method. The method returns -1 if not found
and it's now the responsibility of the caller to handle the case where
it is not found.
Now that we have an abstract partition table definition, we can use it to
generate org.osbuild.fstab stage options.
This is extremely nice because it removes magic contains.
Signed-off-by: Ondřej Budai <ondrej@budai.cz>
Using osbuild.QEMUAssemblerOptions to encode a partition table was weird.
This commit introduces a disk package that contains data types for defining
partition tables. Also, there's a handy function to convert the abstact
partition table to osbuild.QEMUAssemblerOptions.
Signed-off-by: Ondřej Budai <ondrej@budai.cz>
