Use systemctl instead of service

Author: vishesh92

server/src/main/java/org/apache/cloudstack/ca/CAManagerImpl.java

@@ -323,8 +323,8 @@ private boolean provisionKvmHostViaSsh(Host host, String caProvider) {
 
             provisionCertificateViaSsh(sshConnection, hostIp, host.getName(), caProvider);
 
-            SSHCmdHelper.sshExecuteCmd(sshConnection, "sudo service libvirtd restart");
-            SSHCmdHelper.sshExecuteCmd(sshConnection, "sudo service cloudstack-agent restart");
+            SSHCmdHelper.sshExecuteCmd(sshConnection, "sudo systemctl restart libvirtd");
+            SSHCmdHelper.sshExecuteCmd(sshConnection, "sudo systemctl restart cloudstack-agent");
 
             return true;
         } catch (Exception e) {