stackrox · jschnath · Nov 16, 2022 · Nov 8, 2022 · Oct 26, 2022 · Oct 26, 2022
diff --git a/.openshift-ci/get_latest_release_versions.py b/.openshift-ci/get_latest_release_versions.py
@@ -0,0 +1,53 @@
+#!/usr/bin/env python3
+
+"""
+Returns the latest patches of the last n major versions
+"""
+
+import sys
+import re
+import subprocess
+from collections import defaultdict
+
+def is_release_tag(version):
+    return re.search(r"^\d+\.\d+\.\d+$", version) is not None
+
+def filter_tags(rawtags):
+    return set([t for t in rawtags if is_release_tag(t)])
+
+def reduce_tags_to_latest_patch(tags):
+    top_patch_version = defaultdict(int)
+    for t in tags:
+        [major, minor, patch] = t.split('.')
+        k = '.'.join([major, minor])
+        top_patch_version[k] = max(top_patch_version[k], int(patch))
+    top_major_versions = sorted(list(top_patch_version.keys()), reverse=True)
+    return [t + '.' + str(top_patch_version[t]) for t in top_major_versions]
+
+def make_image_tag():
+    return subprocess.check_output(["make", "--quiet", "--no-print-directory", "tag"]).decode(encoding="utf-8")
+
+def extract_x_y_from_main_image_tag(tag):
+    x_y = re.search(r"^(\d+)\.(\d+)", tag)
+    return int(x_y.group(1)), int(x_y.group(2))
+
+def get_latest_n_tags(tags, num_versions):
+    central_major, central_minor = extract_x_y_from_main_image_tag(make_image_tag())
+    tags_older_than_central = [t for t in tags if (int(t.split('.')[0]) < central_major or (int(t.split('.')[0]) == central_major and int(t.split('.')[1]) <= central_minor))]
+    return tags_older_than_central[:num_versions]
+
+# get_latest_release_versions gets the latest patches of the last num_versions major versions via Git CLI
+def get_latest_release_versions(num_versions):
+    rawtags = subprocess.check_output(["git", "tag", "--list"]).decode(encoding="utf-8").splitlines()
+    tags = filter_tags(rawtags)
+    latest_patch_tags = reduce_tags_to_latest_patch(tags)
+    return get_latest_n_tags(latest_patch_tags, num_versions)
+
+def main(argv):
+    n = int(argv[1]) if len(argv)>1 else 4
+    latestversions = get_latest_release_versions(n)
+    print(f"Last {n} versions:")
+    print("\n".join(latestversions))
+
+if (__name__ == "__main__"):
+    main(sys.argv)
diff --git a/scripts/ci/jobs/gke_version_compatibility_tests.py b/scripts/ci/jobs/gke_version_compatibility_tests.py
@@ -4,6 +4,7 @@
 Run version compatibility tests
 """
 import os
+from get_latest_release_versions import get_latest_release_versions
 from compatibility_test import make_compatibility_test_runner
 from clusters import GKECluster
 
@@ -13,12 +14,10 @@
 # don't use postgres
 os.environ["ROX_POSTGRES_DATASTORE"] = "false"
 
-versions=["3.71.0", "3.70.0", "3.69.0"]
+versions=get_latest_release_versions(4)
 
 gkecluster=GKECluster("qa-e2e-test")
 
 for version in versions:
     os.environ["SENSOR_IMAGE_TAG"] = version
     make_compatibility_test_runner(cluster=gkecluster).run()
-
-print("stub for version compatibility tests")