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| author | Scott Moser <smoser@ubuntu.com> | 2013-09-09 20:31:30 -0400 |
|---|---|---|
| committer | Scott Moser <smoser@ubuntu.com> | 2013-09-09 20:31:30 -0400 |
| commit | 2a07fcd6444c7deb09063dff6b2f2d6e5385f355 (patch) | |
| tree | 7cde52630c3fb03ad6b53b5339a527b1a86c278f /cloudinit/sources/DataSourceAzure.py | |
| parent | 0f84bfe5e0f06872a866432178a5f19d04195d30 (diff) | |
| parent | c74d928cc681ee98d0a3893dbe1ee8ff5fe361de (diff) | |
| download | vyos-cloud-init-2a07fcd6444c7deb09063dff6b2f2d6e5385f355.tar.gz vyos-cloud-init-2a07fcd6444c7deb09063dff6b2f2d6e5385f355.zip | |
Add support for reading 'random_seed' from data source.
A new field in the metadata has emerged on openstack config drive, one
that provides a way to seed the linux random generator.
This adds a 'random_seed' config module that writes and that it to
/dev/urandom. Also added is support for reading that data on
azure via the hyper-v acpi table data.
In config drive datasource, it rewrites parts of the on_boot code to use a
little helper class.
Diffstat (limited to 'cloudinit/sources/DataSourceAzure.py')
| -rw-r--r-- | cloudinit/sources/DataSourceAzure.py | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/cloudinit/sources/DataSourceAzure.py b/cloudinit/sources/DataSourceAzure.py index 66d7728b..a77c3d9a 100644 --- a/cloudinit/sources/DataSourceAzure.py +++ b/cloudinit/sources/DataSourceAzure.py @@ -106,6 +106,11 @@ class DataSourceAzureNet(sources.DataSource): if found == ddir: LOG.debug("using files cached in %s", ddir) + # azure / hyper-v provides random data here + seed = util.load_file("/sys/firmware/acpi/tables/OEM0", quiet=True) + if seed: + self.metadata['random_seed'] = seed + # now update ds_cfg to reflect contents pass in config usercfg = util.get_cfg_by_path(self.cfg, DS_CFG_PATH, {}) self.ds_cfg = util.mergemanydict([usercfg, self.ds_cfg]) |