Migrate fmf metadata and test script from the upstream repository

Primarily, this allows us to get rid of dist-git-source which makes
the fmf stuff reusable for CentOS Stream in gitlab which we'd like to
make use of in the systemd backport in the Hyperscale SIG.

Also in general making the integration touch points with Fedora CI
and the other systems as small as possible seems like a good thing.

plans/run-integration-tests.sh

@@ -0,0 +1,114 @@
+#!/bin/bash
+
+set -eux
+set -o pipefail
+
+# Switch SELinux to permissive if possible, since the tests don't set proper contexts
+setenforce 0 || true
+
+echo "CPU and Memory information:"
+lscpu
+lsmem
+
+echo "Clock source: $(cat /sys/devices/system/clocksource/clocksource0/current_clocksource)"
+
+# Bump inotify limits if we can so nspawn containers don't run out of inotify file descriptors.
+sysctl fs.inotify.max_user_watches=65536 || true
+sysctl fs.inotify.max_user_instances=1024 || true
+
+if [[ -n "${KOJI_TASK_ID:-}" ]]; then
+    koji download-task --noprogress --arch="src,noarch,$(rpm --eval '%{_arch}')" "$KOJI_TASK_ID"
+elif [[ -n "${CBS_TASK_ID:-}" ]]; then
+    cbs download-task --noprogress --arch="src,noarch,$(rpm --eval '%{_arch}')" "$CBS_TASK_ID"
+elif [[ -n "${PACKIT_SRPM_URL:-}" ]]; then
+    COPR_BUILD_ID="$(basename "$(dirname "$PACKIT_SRPM_URL")")"
+    COPR_CHROOT="$(basename "$(dirname "$(dirname "$PACKIT_BUILD_LOG_URL")")")"
+    copr download-build --rpms --chroot "$COPR_CHROOT" "$COPR_BUILD_ID"
+    mv "$COPR_CHROOT"/* .
+else
+    echo "Not running within packit and no CBS/koji task ID provided"
+    exit 1
+fi
+
+mkdir systemd
+rpm2cpio ./systemd-*.src.rpm | cpio --to-stdout --extract './systemd-*.tar.gz' | tar xz --strip-components=1 -C systemd
+pushd systemd
+
+# Now prepare mkosi at the same version required by the systemd repo.
+git clone https://github.com/systemd/mkosi
+mkosi_hash="$(grep systemd/mkosi@ .github/workflows/mkosi.yml | sed "s|.*systemd/mkosi@||g")"
+git -C mkosi checkout "$mkosi_hash"
+
+export PATH="$PWD/mkosi/bin:$PATH"
+
+# shellcheck source=/dev/null
+. /etc/os-release || . /usr/lib/os-release
+
+tee mkosi.local.conf <<EOF
+[Distribution]
+Distribution=${MKOSI_DISTRIBUTION:-$ID}
+Release=${MKOSI_RELEASE:-${VERSION_ID:-rawhide}}
+
+[Content]
+PackageDirectories=..
+SELinuxRelabel=yes
+
+[Build]
+ToolsTreeDistribution=${MKOSI_DISTRIBUTION:-$ID}
+ToolsTreeRelease=${MKOSI_RELEASE:-${VERSION_ID:-rawhide}}
+ToolsTreePackageDirectories=..
+Environment=NO_BUILD=1
+WithTests=yes
+EOF
+
+if [[ -n "${TEST_SELINUX_CHECK_AVCS:-}" ]]; then
+    tee --append mkosi.local.conf <<EOF
+[Runtime]
+KernelCommandLineExtra=systemd.setenv=TEST_SELINUX_CHECK_AVCS=$TEST_SELINUX_CHECK_AVCS
+EOF
+fi
+
+# Create missing mountpoint for mkosi sandbox.
+mkdir -p /etc/pacman.d/gnupg
+
+# TODO: drop once BTRFS regression is fixed
+sed -i "s/Format=btrfs/Format=ext4/" mkosi.repart/10-root.conf
+
+# If we don't have KVM, skip running in qemu, as it's too slow. But try to load the module first.
+modprobe kvm || true
+if [[ ! -e /dev/kvm ]]; then
+    export TEST_NO_QEMU=1
+fi
+
+NPROC="$(nproc)"
+if [[ "$NPROC" -ge 10 ]]; then
+    export TEST_JOURNAL_USE_TMP=1
+    NPROC="$((NPROC / 3))"
+else
+    NPROC="$((NPROC - 1))"
+fi
+
+# This test is only really useful if we're building with sanitizers and takes a long time, so let's skip it
+# for now.
+export TEST_SKIP="TEST-21-DFUZZER"
+
+mkosi summary
+mkosi -f sandbox -- true
+mkosi sandbox -- meson setup --buildtype=debugoptimized -Dintegration-tests=true build
+mkosi genkey
+mkosi -f
+mkosi sandbox -- \
+    meson test \
+    -C build \
+    --no-rebuild \
+    --suite integration-tests \
+    --print-errorlogs \
+    --no-stdsplit \
+    --num-processes "$NPROC" && EC=0 || EC=$?
+
+[[ -d build/meson-logs ]] && find build/meson-logs -type f -exec mv {} "$TMT_TEST_DATA" \;
+[[ -d build/test/journal ]] && find build/test/journal -type f -exec mv {} "$TMT_TEST_DATA" \;
+
+popd
+
+exit "$EC"

plans/upstream.fmf

@@ -1,16 +1,22 @@
 summary: systemd upstream test suite
-discover:
-  how: fmf
-  dist-git-source: true
-  dist-git-install-builddeps: false
-prepare:
-  - name: systemd
-    how: install
-    exclude:
-      - systemd-standalone-.*
-execute:
-  how: tmt
 provision:
   hardware:
     virtualization:
       is-supported: true
+prepare:
+  - name: install-dependencies
+    how: install
+    package:
+      - coreutils
+      - distribution-gpg-keys
+      - dnf
+      - git-core
+      - koji
+      - centos-packager
+      - copr-cli
+    exclude:
+      - systemd-standalone-.*
+execute:
+    how: tmt
+    script: exec plans/run-integration-tests.sh
+    duration: 2h