Test: rework integration test to run on all supported distros

Previously, the integration test was always skipped in c9s. Rework it to
pick the correct image manifest based on the running distro and build it
using osbuild.

Pick manifests for the latest distro versions from the upstream
osbuild-composer repository. Use qcow2 image with customizations.

Related: rhbz#2132250

Signed-off-by: Tomáš Hozza <thozza@redhat.com>

plans/integration-tests.fmf

@@ -0,0 +1,9 @@
+summary: Build simple image using osbuild
+prepare:
+    how: install
+    package:
+    - osbuild
+execute:
+    script: ./tests/scripts/build-images.sh ./tests/manifests
+    duration: 4h
+

plans/unit-tests.fmf

@@ -1,4 +1,4 @@
-summary: Run osbuild tests
+summary: Run osbuild unit tests from source
 prepare:
     how: install
     package:
@@ -12,6 +12,3 @@ discover:
     dist-git-source: true
 execute:
     how: tmt
-adjust:
-    enabled: false
-    when: distro == centos-stream-9

tests/image.fmf

@@ -1,2 +0,0 @@
-summary: Run image test
-test: osbuild test-image.json --output-directory=/var/tmp/osbuild

tests/scripts/build-images.sh

@@ -0,0 +1,49 @@
+#!/usr/bin/bash
+set -euxo pipefail
+
+MANIFESTS_DIR=$1
+# check that MANIFESTS_DIR is a directory
+if [ ! -d "$MANIFESTS_DIR" ]; then
+    echo "Error: $MANIFESTS_DIR is not a directory"
+    exit 1
+fi
+
+# ensure that we are running on x86_64 architecture
+if [ "$(uname -m)" != "x86_64" ]; then
+    echo "Error: this script is only supported on x86_64 architecture"
+    exit 1
+fi
+
+. /etc/os-release
+
+case "${ID}-${VERSION_ID}" in
+    "fedora-*")
+        IMAGE_MANIFEST="${MANIFESTS_DIR}/fedora.json"
+        ;;
+    "rhel-8.*")
+        IMAGE_MANIFEST="${MANIFESTS_DIR}/rhel-8.json"
+        ;;
+    "rhel-9.*")
+        IMAGE_MANIFEST="${MANIFESTS_DIR}/rhel-9.json"
+        ;;
+    "centos-8")
+        IMAGE_MANIFEST="${MANIFESTS_DIR}/centos-8.json"
+        ;;
+    "centos-9")
+        IMAGE_MANIFEST="${MANIFESTS_DIR}/centos-9.json"
+        ;;
+    *)
+        echo "Error: unsupported OS: ${ID}-${VERSION_ID}"
+        exit 1
+        ;;
+esac
+
+OUTPUT_DIR=/var/tmp/osbuild-output
+STORE_DIR=/var/tmp/osbuild-store
+sudo mkdir -p "${OUTPUT_DIR}"
+sudo mkdir -p "${STORE_DIR}"
+
+# all the images are built with qcow2 format, so export it
+EXPORT_PIPELINE="qcow2"
+
+sudo osbuild --output-directory "${OUTPUT_DIR}" --store "${STORE_DIR}" --export "${EXPORT_PIPELINE}" "${IMAGE_MANIFEST}"