qemu-kvm/kvm-redhat-link-etc-qemu-ga...

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From 020501879841afb788087f0455df79367c0337a0 Mon Sep 17 00:00:00 2001
From: Danilo de Paula <ddepaula@redhat.com>
Date: Fri, 11 Sep 2020 14:23:22 -0400
Subject: [PATCH 1/4] redhat: link /etc/qemu-ga/fsfreeze-hook to /etc/qemu-kvm/
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Danilo de Paula <ddepaula@redhat.com>
Message-id: <20200911142322.1865501-2-ddepaula@redhat.com>
Patchwork-id: 98358
O-Subject: [RHEL-AV-8.3.0 qemu-kvm PATCH v2 1/1] redhat: link /etc/qemu-ga/fsfreeze-hook to /etc/qemu-kvm/
Bugzilla: 1738820
RH-Acked-by: Eduardo Lima (Etrunko) <etrunko@redhat.com>
RH-Acked-by: Marc-André Lureau <marcandre.lureau@redhat.com>
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
When qemu-ga was introduced to RHEL-8, we used the qemu-guest-agent
from RHEL-7 as base.
In RHEL-7, qemu-guest-agent is built as standalone package.
It's built as "qemu-ga", hence the "qemu-ga" folders.
For RHEL-8, that should have been renamed to qemu-kvm, but I missed it.
Renaming those folders to /etc/qemu-kvm is a no go today, because
users might have populated the /etc/qemu-ga/fsfreeze-hook.d folder.
So, in order to make qemu-ga -F works in RHEL-8, a link is being
created in the expected place, pointing to the real one.
Also, fsfreeze-hook opens up the fsfreeze-hook.d on the same PATH where
it is stored. However, it doesn't follow symlinks. In order to fix this,
I had to change it to make sure it follows the link.
An option would be to also link the fsfreeze-hook.d folder, but I choose
not to do so as it creates a permanent/visible change in users
environments. The downside is to keep another downstream-only change.
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
redhat/qemu-kvm.spec.template | 6 ++++++
scripts/qemu-guest-agent/fsfreeze-hook | 2 +-
2 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/scripts/qemu-guest-agent/fsfreeze-hook b/scripts/qemu-guest-agent/fsfreeze-hook
index 13aafd4845..e9b84ec028 100755
--- a/scripts/qemu-guest-agent/fsfreeze-hook
+++ b/scripts/qemu-guest-agent/fsfreeze-hook
@@ -8,7 +8,7 @@
# request, it is issued with "thaw" argument after filesystem is thawed.
LOGFILE=/var/log/qga-fsfreeze-hook.log
-FSFREEZE_D=$(dirname -- "$0")/fsfreeze-hook.d
+FSFREEZE_D=$(dirname -- "$(realpath $0)")/fsfreeze-hook.d
# Check whether file $1 is a backup or rpm-generated file and should be ignored
is_ignored_file() {
--
2.27.0