Import patches-unapplied version 2.2.6-0ubuntu1 to ubuntu/zesty-proposed

Imported using git-ubuntu import.

Changelog parent: d064ab0bffd429382ea4fafeb144784d403848bd

New changelog entries:
  * New upstream release (LP: #1661750).
  * debian/control:
    - Change the maintainer to Ubuntu Developers (LP: #1657528).
    - Add the dependency of isc-dhcp-client as our maintainer scripts assume
      it's installed.
    - Add trailing commas to dependencies, add whitespaces.
  * Rename ephemeral-disk-warning.sh to ephemeral-disk-warning (lintian error).
  * debian/docs:
    - Remove LICENSE.txt as it's redundant.
  * debian/postinst:
    - Stop checking for update-initramfs existence using the absolute path, use
      the 'command' command instead to make lintian happy.
  * Remove debian/patches/disable-auto-update.patch:
    - We now ship with auto-updates enabled (LP: #1650522).
  * debian/maintscript:
    - Add a maintscript to rename the old logrotate file on upgrade from an
      ancient version of walinuxagent (LP: #1673152).

1 files changed, 12 insertions, 5 deletions

diff --git a/azurelinuxagent/pa/deprovision/default.py b/azurelinuxagent/pa/deprovision/default.py
index a702d3f..ced87ee 100644
--- a/azurelinuxagent/pa/deprovision/default.py
+++ b/azurelinuxagent/pa/deprovision/default.py
@@ -40,6 +40,7 @@ class DeprovisionHandler(object):
     def __init__(self):
         self.osutil = get_osutil()
         self.protocol_util = get_protocol_util()
+        self.actions_running = False
         signal.signal(signal.SIGINT, self.handle_interrupt_signal)
 
     def del_root_password(self, warnings, actions):
@@ -87,8 +88,9 @@ class DeprovisionHandler(object):
         dirs_to_del = ["/var/lib/dhclient", "/var/lib/dhcpcd", "/var/lib/dhcp"]
         actions.append(DeprovisionAction(fileutil.rm_dirs, dirs_to_del))
 
-        # For Freebsd
-        actions.append(DeprovisionAction(fileutil.rm_files, ["/var/db/dhclient.leases.hn0"]))
+        # For Freebsd, NM controlled
+        actions.append(DeprovisionAction(fileutil.rm_files, ["/var/db/dhclient.leases.hn0",
+                                                             "/var/lib/NetworkManager/dhclient-*.lease"]))
 
     def del_lib_dir(self, warnings, actions):
         dirs_to_del = [conf.get_lib_dir()]
@@ -134,11 +136,16 @@ class DeprovisionHandler(object):
             if not confirm.lower().startswith('y'):
                 return
 
+        self.actions_running = True
         for action in actions:
             action.invoke()
 
-    def handle_interrupt_signal(self, frame):
-        print("Deprovision is interrupted.")
-        sys.exit(0)
+    def handle_interrupt_signal(self, signum, frame):
+        if not self.actions_running:
+            print("Deprovision is interrupted.")
+            sys.exit(0)
+
+        print ('Deprovisioning may not be interrupted.')
+        return