go.ligato.io/vpp-agent/v3@v3.5.0/examples/kvscheduler/mock_plugins/scenario/fixed_invalid_config.go (about)

     1  //  Copyright (c) 2019 Cisco and/or its affiliates.
     2  //
     3  //  Licensed under the Apache License, Version 2.0 (the "License");
     4  //  you may not use this file except in compliance with the License.
     5  //  You may obtain a copy of the License at:
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  //  Unless required by applicable law or agreed to in writing, software
    10  //  distributed under the License is distributed on an "AS IS" BASIS,
    11  //  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  //  See the License for the specific language governing permissions and
    13  //  limitations under the License.
    14  
    15  package scenario
    16  
    17  import (
    18  	"context"
    19  	"log"
    20  
    21  	"go.ligato.io/vpp-agent/v3/client"
    22  )
    23  
    24  // InvalidConfigFixedWithUpdate presents a scenario, in which an interface is
    25  // first defined with an invalid MAC address and therefore remains in the INVALID
    26  // state. All the objects that depend on it must remain PENDING.
    27  // The next update, however, will supply an updated interface configuration
    28  // where the MAC address is fixed. The interface and all the associated pending
    29  // objects are then successfully created.
    30  func InvalidConfigFixedWithUpdate() {
    31  	c := client.LocalClient
    32  	listKnownModels(c)
    33  
    34  	printMessage(
    35  		"Resync config",
    36  		"  - requested config contains:",
    37  		"     -> 2 TAP interfaces (tap1, tap2) and one loopback inside",
    38  		"        a bridge-domain",
    39  		"     -> FIB entry forwarding traffic for a certain MAC address",
    40  		"        via tap2",
    41  		"  - the issue is that tap2 has invalid MAC address defined, which",
    42  		"    will cause it to remain in the INVALID state after the transaction",
    43  		"  - with tap2 not configured, the binding between the BD and tap2",
    44  		"    will remain pending and so will the FIB entry",
    45  	)
    46  	err := c.ResyncConfig(
    47  		tap1, tap2Invalid, loopback1, bd1, fib2,
    48  	)
    49  	if err != nil {
    50  		log.Println(err)
    51  	}
    52  	informAboutGraphURL(0, true, true)
    53  
    54  	printMessage(
    55  		"Change config",
    56  		"  - update tap2 to contain valid MAC address",
    57  		"  - tap2 will now get successfully configured and added into",
    58  		"    the bridge domain together with the associated FIB entry which",
    59  		"    was pending",
    60  	)
    61  
    62  	req := c.ChangeRequest()
    63  	req.Update(tap2)
    64  	if err := req.Send(context.Background()); err != nil {
    65  		log.Println(err)
    66  	}
    67  	informAboutGraphURL(1, false, true)
    68  }