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config_init.go
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config_init.go
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// Copyright 2019 VMware, Inc.
// SPDX-License-Identifier: Apache-2.0
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at:
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package config
import (
"context"
"cisco-app-networking.github.io/networkservicemesh/sdk/client"
"cisco-app-networking.github.io/networkservicemesh/sdk/common"
"github.com/sirupsen/logrus"
)
// SingleClient is a single client instance combining the CNF configuration and the NS Client
type SingleAction struct {
Action *Action
nsmClient *client.NsmClient
}
// ProcessInitActions keeps the state of the initial setup
type ProcessInitActions struct {
InitActions []*SingleAction
}
// NewProcessInitActions returns a new ProcessInitCommands struct
func NewProcessInitActions(backend UniversalCNFBackend, initactions []*Action,
nsConfig *common.NSConfiguration) *ProcessInitActions {
pia := &ProcessInitActions{}
for _, a := range initactions {
var nsmClient *client.NsmClient
var err error
if a.Client != nil {
c := a.Client
// Map the labels to a single comma separated string
labels := labelStringFromMap(c.Labels)
// Call the NS Client initiation
nsConfig.ClientNetworkService = c.Name
nsConfig.ClientLabels = labels
nsConfig.Routes = c.Routes
nsmClient, err = client.NewNSMClient(context.TODO(), nsConfig)
if err != nil {
logrus.Errorf("Unable to create the NSM client %v", err)
}
}
pia.InitActions = append(pia.InitActions, &SingleAction{
Action: a,
nsmClient: nsmClient,
})
}
return pia
}
// Process iterates over the init commands and applies them
func (pia *ProcessInitActions) Process(ctx context.Context, backend UniversalCNFBackend) error {
for _, sa := range pia.InitActions {
if err := sa.Action.Process(ctx, backend, sa.nsmClient); err != nil {
logrus.Errorf("Failed processing %+v", sa.Action)
return err
}
}
return nil
}
// Cleanup - cleans up before exit
func (pia *ProcessInitActions) Cleanup() {
for _, sa := range pia.InitActions {
if err := sa.Action.Cleanup(); err != nil {
logrus.Errorf("Failed cleaning %+v", sa.Action)
}
}
}