[pve-devel] [PATCH pve-lxc-syscalld 3/4] d/postinst: create link to new socket location on upgrade

From: Fiona Ebner <f.ebner@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [pve-devel] [PATCH pve-lxc-syscalld 3/4] d/postinst: create link to new socket location on upgrade
Date: Tue, 13 May 2025 12:56:51 +0200	[thread overview]
Message-ID: <20250513105652.67403-4-f.ebner@proxmox.com> (raw)
In-Reply-To: <20250513105652.67403-1-f.ebner@proxmox.com>

This allows containers started with a configuration using the old
socket path to continue calling in to the pve-lxc-syscalld, except for
a brief time window after the new runtime dir is used before the
postinst script runs. However, such a time window was/is already
present during service restart (and thus during package upgrade),
since pve-lxc-syscalld doesn't currently implement graceful reloading.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
 debian/postinst | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 debian/postinst

diff --git a/debian/postinst b/debian/postinst
new file mode 100644
index 0000000..97abc0c
--- /dev/null
+++ b/debian/postinst
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+set -e
+
+#DEBHELPER#
+
+case "$1" in
+  configure)
+    if test -n "$2"; then
+      # TODO: remove once PVE 10.0 is released
+      if dpkg --compare-versions "$2" 'lt' '1.3.1'; then
+        ln -s -f /run/pve-lxc-syscalld/lxc-syscalld.sock /run/pve/lxc-syscalld.sock
+      fi
+    fi
+    ;;
+
+esac
+
+exit 0
-- 
2.39.5



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