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treecompose: Add initramfs-args to treefile

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We're building generic initramfs images on the server side, but dracut
has logic to pick up some things from the host, like filesystems.

In the absence of host-specific initramfs images, it needs to be up to
the generating system what kernel modules end up in the initramfs.
Provide a generic option to passthrough dracut arguments.
This commit is contained in:
Colin Walters 2014-12-02 17:06:06 -05:00
parent 99f9bc3fc7
commit 3a41c65c8a
2 changed files with 36 additions and 3 deletions
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5
doc/treefile.md
View File

@ -42,6 +42,11 @@ Treefile
* `default_target`: String, optional: Set the default systemd target
* `initramfs-args`: Array of strings, optional. Passed to the
initramfs generation program (presently `dracut`). An example use
case for this with Dracut is `--filesystems xfs,ext4` to ensure
specific filesystem drivers are included.
* `remove-files`: Delete these files from the generated tree
* `remove-from-packages`: Array, optional: Delete from specified packages

34
src/rpmostree-postprocess.c
View File

@ -208,6 +208,7 @@ find_kernel_and_initramfs_in_bootdir (GFile *bootdir,
static gboolean
do_kernel_prep (GFile *yumroot,
JsonObject *treefile,
GCancellable *cancellable,
GError **error)
{
@ -271,8 +272,35 @@ do_kernel_prep (GFile *yumroot,
}
{
char *child_argv[] = { "dracut", "-v", "--tmpdir=/tmp", "-f", "/var/tmp/initramfs.img", (char*)kver, NULL };
if (!run_sync_in_root (yumroot, "/usr/sbin/dracut", (char**)child_argv, error))
gs_unref_ptrarray GPtrArray *dracut_argv = g_ptr_array_new ();
g_ptr_array_add (dracut_argv, "dracut");
g_ptr_array_add (dracut_argv, "-v");
g_ptr_array_add (dracut_argv, "--tmpdir=/tmp");
g_ptr_array_add (dracut_argv, "-f");
g_ptr_array_add (dracut_argv, "/var/tmp/initramfs.img");
g_ptr_array_add (dracut_argv, (char*)kver);
if (json_object_has_member (treefile, "initramfs-args"))
{
guint i, len;
JsonArray *initramfs_args;
initramfs_args = json_object_get_array_member (treefile, "initramfs-args");
len = json_array_get_length (initramfs_args);
for (i = 0; i < len; i++)
{
const char *arg = _rpmostree_jsonutil_array_require_string_element (initramfs_args, i, error);
if (!arg)
goto out;
g_ptr_array_add (dracut_argv, (char*)arg);
}
}
g_ptr_array_add (dracut_argv, NULL);
if (!run_sync_in_root (yumroot, "/usr/sbin/dracut", (char**)dracut_argv->pdata, error))
goto out;
}
@ -854,7 +882,7 @@ create_rootfs_from_yumroot_content (GFile *targetroot,
gs_unref_hashtable GHashTable *preserve_groups_set = NULL;
g_print ("Preparing kernel\n");
if (!do_kernel_prep (yumroot, cancellable, error))
if (!do_kernel_prep (yumroot, treefile, cancellable, error))
goto out;
g_print ("Initializing rootfs\n");