Add ask whether to continue the upgrade without RPM (fix #24)

rpmbuild/ganeti/SOURCES/ganeti-2.16.1-ask-whether-upgrade-without-rpm.patch

@@ -0,0 +1,15 @@
+diff -urN ganeti-2.16.1.default/lib/client/gnt_cluster.py ganeti-2.16.1/lib/client/gnt_cluster.py
+--- ganeti-2.16.1.default/lib/client/gnt_cluster.py	2019-04-01 15:29:37.000000000 +0900
++++ ganeti-2.16.1/lib/client/gnt_cluster.py	2020-02-28 14:38:17.455632899 +0900
+@@ -2376,6 +2376,11 @@
+              " has to be given")
+     return 1
+
++  usertext = ("This Ganeti is installed by RPM package, so it is recommended"
++              " to upgrade using RPM. Continue?")
++  if not AskUser(usertext):
++    return 1
++
+   # If we're not told to resume, verify there is no upgrade
+   # in progress.
+   if not opts.resume:

rpmbuild/ganeti/SPECS/ganeti.spec

@@ -37,6 +37,7 @@ Patch5: ganeti-2.16.1-fix-new-cluster-node-certificates.patch
 Patch6: ganeti-2.16.1-default-kvmd-args.patch
 Patch7: ganeti-2.16.1-rapi-require-authentication.patch
 Patch8: ganeti-2.16.1-systemd-ambient-capabilities.patch
+Patch9: ganeti-2.16.1-ask-whether-upgrade-without-rpm.patch
 
 BuildRequires: python
 BuildRequires: pyOpenSSL
@@ -145,6 +146,7 @@ It is not required when the init system used is systemd.
 %patch6 -p1
 %patch7 -p1
 %patch8 -p1
+%patch9 -p1
 
 %build
 %configure \
@@ -256,6 +258,7 @@ rm -rf ${RPM_BUILD_ROOT}
 %changelog
 * Fri Feb 28 2020 Jun Futagawa <[email protected]> - 2.16.1-3
 - Add AmbientCapabilities in ganeti-metad.service (#26)
+- Add ask whether to continue the upgrade without RPM (#24)
 
 * Tue Feb 25 2020 Jun Futagawa <[email protected]> - 2.16.1-2
 - Add build dependencies for metad and mond and enable them in the build (#25, thanks @ramereth)