ci: test against trixie (#78771)

Jenkinsfile

@@ -4,13 +4,6 @@ pipeline {
     agent any
     options { disableConcurrentBuilds() }
     stages {
-        stage('Unit Tests (bullseye)') {
-            steps {
-                catchError(stageResult: 'FAILURE') {
-                    sh 'sudo ./test-nspawn bullseye'
-                }
-            }
-        }
         stage('Unit Tests (bookworm)') {
             steps {
                 catchError(stageResult: 'FAILURE') {
@@ -18,6 +11,13 @@ pipeline {
                 }
             }
         }
+        stage('Unit Tests (trixie)') {
+            steps {
+                catchError(stageResult: 'FAILURE') {
+                    sh 'sudo ./test-nspawn trixie'
+                }
+            }
+        }
     }
     post {
         always {

test-nspawn

@@ -1,11 +1,12 @@
 #!/bin/sh
 set -ex
 
-if [ $1 = bullseye ] || [ $1 = bookworm ]
+if [ $1 = trixie ] || [ $1 = bookworm ]
 then
     suite=$1
     image=publik-devinst-$suite
     fs=/var/lib/machines/$image
+    if [ $suite = trixie]; suite=testing; fi
     test -d $fs || (cd /var/lib/machines && debootstrap --include=systemd-container $suite $image http://deb.debian.org/debian/)
     rsync -a --delete . $fs/opt/publik-devinst
     systemd-nspawn -x -D $fs /opt/publik-devinst/test-nspawn run-tests