Update OCP check script and upstream support with the prow changes

The PROW CI jobs were updated to use only latest OCP release for their runs. The documentation and the check openshift version script needs to be changed as well. PROW PR: openshift/release#44348 Signed-off-by: Michal Pryc <[email protected]>
mpryc · Oct 13, 2023 · 1c76e0c · 1c76e0c
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diff --git a/docs/UpstreamSupport.md b/docs/UpstreamSupport.md
@@ -1,8 +1,8 @@
 # Pelorus Upstream Support Statement
 
-The Pelorus engineering team will provide **best-effort** level support for it on the currently latest and the latest 3 previous released stable minor versions of OpenShift version 4.
+The Pelorus engineering team will provide **best-effort** level support for it on the currently latest released stable minor versions of the OpenShift version 4.
 
-> **NOTE:** Pelorus is currently automated tested against versions **4.10**, **4.11**, **4.12** and **4.13** of OpenShift.
+> **NOTE:** Pelorus is currently automated tested against version **4.13** of OpenShift.
 
 * To file a bug, please create a [Bug issue](https://github.com/dora-metrics/pelorus/issues/new?assignees=&labels=kind%2Fbug%2Cneeds-triage&template=bug.yml)
 

diff --git a/scripts/check_openshift_version.py b/scripts/check_openshift_version.py
@@ -26,11 +26,12 @@
 OPENSHIFT_BRANCH = "master"
 RAW_URL = f"https://raw.githubusercontent.com/{OPENSHIFT_REPO}/{OPENSHIFT_BRANCH}"
 
+OCP_CI_VERSION_URL = "https://openshift-release.apps.ci.l2s4.p1.openshiftapps.com/graph"
+NO_LAST_OCP_VERSIONS = 1
+
 
 def get_supported_versions() -> List[str]:
-    with request.urlopen(
-        "https://openshift-release.apps.ci.l2s4.p1.openshiftapps.com/graph"
-    ) as response:
+    with request.urlopen(OCP_CI_VERSION_URL) as response:
         versions: List[Dict[str, str]] = list(json.load(response)["nodes"])
     stable_versions = [
         version["version"]
@@ -44,7 +45,10 @@ def get_supported_versions() -> List[str]:
     latest_minor_versions = list(minor_versions)
     latest_minor_versions.sort(reverse=True)
 
-    return [f"{version.major}.{version.minor}" for version in latest_minor_versions[:4]]
+    return [
+        f"{version.major}.{version.minor}"
+        for version in latest_minor_versions[:NO_LAST_OCP_VERSIONS]
+    ]
 
 
 def check_version_in_openshift_repo(version: str, file_name: str) -> None:
@@ -86,7 +90,9 @@ def check_versions(versions: List[str]) -> None:
 
 def main() -> None:
     supported_versions = get_supported_versions()
-    logging.info(f"Latest minor OpenShift releases: {', '.join(supported_versions)}")
+    logging.info(
+        f"Last '{NO_LAST_OCP_VERSIONS}' minor OpenShift release(s): {', '.join(supported_versions)}"
+    )
     check_versions(supported_versions)
 
     log_cache: dict = logging.getLogger()._cache