Merge ~andreserl/maas:lp1789469_maas-common into maas:master

[Andres Rodriguez]

LP: #1789469 - Correctly handle the removal of services to prevent maas-common removal from failing.

[Mike Pontillo (mpontillo)]

Looking at the rendered version of /var/lib/dpkg/info/maas-common.postrm, I can see how this could help address the symptom. I'm not positive it's a full fix, but I think we should go ahead and land this.

review: Approve

faa6562... by Andres Rodriguez on 2018-09-27

Correctly stop services during removal

1607256... by Andres Rodriguez on 2018-09-27

Update debian/changelog

diff --git a/debian/changelog b/debian/changelog
index 1ec1962..1f131db 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -5,6 +5,11 @@ maas (2.5.0~beta2-0ubuntu1) UNRELEASED; urgency=medium
     in 8 seconds, if not kill it with 'mixed' mode.
   * debian/control: Drop python3-jinja2 as it is no longer needed to
     generate documentation.
+  * debian/maas-common.postrm: Run debhelper handling before manual removal
+    actions.
+  * debian/maas-rack-controller.prerm: Add & handle stop of
+    maas-rackd.service.
+  * debian/maas-common.prerm: Add & handle stop of maas-syslog.service.
 
  -- Andres Rodriguez <[e-mail]>  Wed, 19 Sep 2018 03:10:49 -0400
 
diff --git a/debian/maas-common.postrm b/debian/maas-common.postrm
index 06bf180..b4c12c3 100644
--- a/debian/maas-common.postrm
+++ b/debian/maas-common.postrm
@@ -2,6 +2,8 @@
 
 set -e
 
+#DEBHELPER#
+
 case "$1" in
     purge)
         # Deleting user/group
@@ -17,5 +19,3 @@ case "$1" in
 esac
 
 rm -f /etc/rsyslog.d/99-maas.conf
-
-#DEBHELPER#
diff --git a/debian/maas-common.prerm b/debian/maas-common.prerm
new file mode 100644
index 0000000..15c427e
--- /dev/null
+++ b/debian/maas-common.prerm
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+set -e
+
+#DEBHELPER#
+
+if [ -d /run/systemd/system ]; then
+	deb-systemd-invoke stop 'maas-syslog.service' >/dev/null || true
+fi
diff --git a/debian/maas-rack-controller.prerm b/debian/maas-rack-controller.prerm
new file mode 100644
index 0000000..ae7a019
--- /dev/null
+++ b/debian/maas-rack-controller.prerm
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+set -e
+
+#DEBHELPER#
+
+if [ -d /run/systemd/system ]; then
+	deb-systemd-invoke stop 'maas-rackd.service' >/dev/null || true
+fi