Example #1
0
// Process validates, implements, and writes the state.
func (gc *Cfg) Process(ra core.ResourceManager) error {
	var err error

	if gc.Version != VersionBeta1 {
		return core.Errorf("unsupported version %s", gc.Version)
	}

	err = gc.checkErrors()
	if err != nil {
		return core.Errorf("process failed on error checks %s", err)
	}

	tenant := gc.Tenant
	if tenant == "" {
		return core.Errorf("null tenant")
	}

	subnetRsrcCfg := &resources.AutoSubnetCfgResource{
		SubnetPool:     net.ParseIP(gc.Auto.SubnetPool),
		SubnetPoolLen:  gc.Auto.SubnetLen,
		AllocSubnetLen: gc.Auto.AllocSubnetLen}
	err = ra.DefineResource(tenant, resources.AutoSubnetResource, subnetRsrcCfg)
	if err != nil {
		return err
	}

	// Only define a vlan resource if a valid range was specified
	if gc.Auto.VLANs != "" {
		var vlanRsrcCfg *bitset.BitSet
		vlanRsrcCfg, err = gc.initVLANBitset(gc.Auto.VLANs)
		if err != nil {
			return err
		}
		err = ra.DefineResource(tenant, resources.AutoVLANResource, vlanRsrcCfg)
		if err != nil {
			return err
		}
	}

	// Only define a vxlan resource if a valid range was specified
	var freeVXLANsStart uint
	if gc.Auto.VXLANs != "" {
		var vxlanRsrcCfg *resources.AutoVXLANCfgResource
		vxlanRsrcCfg, freeVXLANsStart, err = gc.initVXLANBitset(gc.Auto.VXLANs)
		if err != nil {
			return err
		}
		err = ra.DefineResource(tenant, resources.AutoVXLANResource, vxlanRsrcCfg)
		if err != nil {
			return err
		}
	}

	g := &Oper{Tenant: gc.Tenant,
		FreeVXLANsStart: freeVXLANsStart}
	g.StateDriver = gc.StateDriver
	err = g.Write()
	if err != nil {
		log.Errorf("error '%s' updating goper state %v \n", err, g)
		return err
	}

	log.Debugf("updating the global config to new state %v \n", gc)
	return nil
}