cc_growpart: respect /etc/growroot-disabled

cloud-initramfs-growroot is an initramfs module in cloud-initramfs-tools
that resizes the root partition before the root is pivoted over.

growroot was used in Ubuntu up to and including 12.10.  The file
/etc/growroot-disabled on the root filesystem was the only way of
disabling the growing of the root partition.

In cloud-init 0.7.2 cloud-init began resizing the root partition
as growpart gained the ability to utilize 'ptupdate' in kernels > 3.8.
This was a big improvement as now the user could disable or enable
the growing of the root partition via user-data.

In order to let users disable growing of / very simplistically cloud-init
will now respect the presense of /etc/growroot-disabled unless config
specifically tells it to ignore that file.

LP: #1234331

1 files changed, 1 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index caac8720..20e3fcc3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -26,6 +26,7 @@
  - config/cloud.cfg: add 'sudo' to list groups for the default user 
    (LP: #1228228)
  - documentation fix for use of 'mkpasswd' [Eric Nordlund]
+ - respect /etc/growroot-disabled file (LP: #1234331)
 0.7.2:
  - add a debian watch file
  - add 'sudo' entry to ubuntu's default user (LP: #1080717)