kvm: support Rocky/RHEL/OL/Alma in the same cluster

weizhouapache · Feb 12, 2024 · 12c2542 · 12c2542
1 parent 672206c
commit 12c2542
Showing 1 changed file with 17 additions and 1 deletion.
diff --git a/server/src/main/java/com/cloud/hypervisor/kvm/discoverer/LibvirtServerDiscoverer.java b/server/src/main/java/com/cloud/hypervisor/kvm/discoverer/LibvirtServerDiscoverer.java
@@ -63,6 +63,7 @@
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.UUID;
@@ -72,6 +73,10 @@
 public abstract class LibvirtServerDiscoverer extends DiscovererBase implements Discoverer, Listener, ResourceStateAdapter {
     private static final Logger s_logger = Logger.getLogger(LibvirtServerDiscoverer.class);
     private final int _waitTime = 5; /* wait for 5 minutes */
+
+    private final static HashSet<String> COMPATIBLE_HOST_OSES = new HashSet<>(Arrays.asList("Rocky", "Rocky Linux",
+            "Red", "Red Hat Enterprise Linux", "Oracle", "Oracle Linux Server", "AlmaLinux"));
+
     private String _kvmPrivateNic;
     private String _kvmPublicNic;
     private String _kvmGuestNic;
@@ -470,7 +475,7 @@ public HostVO createHostVOForConnectedAgent(HostVO host, StartupCommand[] cmd) {
             _hostDao.loadDetails(oneHost);
             String hostOsInCluster = oneHost.getDetail("Host.OS");
             String hostOs = ssCmd.getHostDetails().get("Host.OS");
-            if (!hostOsInCluster.equalsIgnoreCase(hostOs)) {
+            if (!isHostOsCompatibleWithOtherHost(hostOsInCluster, hostOs)) {
                 String msg = String.format("host: %s with hostOS, \"%s\"into a cluster, in which there are \"%s\" hosts added", firstCmd.getPrivateIpAddress(), hostOs, hostOsInCluster);
                 if (hostOs != null && hostOs.startsWith(hostOsInCluster)) {
                     s_logger.warn(String.format("Adding %s. This may or may not be ok!", msg));
@@ -485,6 +490,17 @@ public HostVO createHostVOForConnectedAgent(HostVO host, StartupCommand[] cmd) {
         return _resourceMgr.fillRoutingHostVO(host, ssCmd, getHypervisorType(), host.getDetails(), null);
     }
 
+    private boolean isHostOsCompatibleWithOtherHost(String hostOsInCluster, String hostOs) {
+        if (hostOsInCluster.equalsIgnoreCase(hostOs)) {
+            return true;
+        }
+        if (COMPATIBLE_HOST_OSES.contains(hostOsInCluster) && COMPATIBLE_HOST_OSES.contains(hostOs)) {
+            s_logger.info(String.format("The host OS (%s) is compatible with the existing host OS (%s) in the cluster.", hostOs, hostOsInCluster));
+            return true;
+        }
+        return false;
+    }
+
     @Override
     public HostVO createHostVOForDirectConnectAgent(HostVO host, StartupCommand[] startup, ServerResource resource, Map<String, String> details, List<String> hostTags) {
         // TODO Auto-generated method stub