Implement EBS volume mounting

This can either be invoked by instrumenting the user-data with a mime
part with content-type 'text/x-ebs-mount-description' with a body like
so:

device=/dev/sde:/var/lib/mysql,/etc/alfresco
device=/dev/sdf:/other/things

or by using the appliance config XML format like so:

<appliance>
  <storage device="/dev/sde">
	<path>/var/lib/mysql</path>
    <path>/etc/alfresco</path>
	</storage>
  <storage device="/dev/sdf">
    <path>/other/things</path>
  </appliance>
</appliance>

In either case, if the volume does not yet have a filesystem, one will be created.

For each path that is to live on the volume, a directory is created, and
populated with the data currently in the target directory (e.g.
/var/lib/mysql is copied to ${ebs_volume_path}/_var_lib_mysql). Once
this is done, the directories are bind-mounted to the relevant paths.
If the directories in question already exist, they will just be bind-mounted.

1 files changed, 3 insertions, 1 deletions

diff --git a/setup.py b/setup.py
index fa855bd6..dab57103 100755
--- a/setup.py
+++ b/setup.py
@@ -37,5 +37,7 @@ setup(name='EC2-init',
                'ec2-wait-for-meta-data-service.py'],
       data_files=[('/etc/ec2-init', ['ec2-config.cfg']),
                   ('/etc/ec2-init/templates', glob('templates/*')),
-                  ('/etc/init.d', ['ec2-init'])],
+                  ('/etc/init.d', ['ec2-init']),
+                  ('/usr/share/ec2-init', ['ec2-init-appliance-ebs-volume-mount.sh']),
+                  ],
       )