public void setConfigUpgradePack(ConfigUpgradePack configUpgradePack) {
    this.configUpgradePack = configUpgradePack;
  }
Set config upgrade pack for stack
@param configUpgradePack config upgrade pack for stack or null if it is
not defined
ambari-server/src/main/java/org/apache/ambari/server/state/StackInfo.java