Tyler King
6058e62348
Go-based network automation with YANG models, gRPC, Ansible, Terraform, and Kubernetes integration. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
56 lines
1.5 KiB
Go
56 lines
1.5 KiB
Go
package underlay
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import (
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"context"
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"fmt"
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"go.uber.org/zap"
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"k8s.io/client-go/kubernetes"
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"k8s.io/client-go/rest"
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"github.com/guildhouse-co/kedge/internal/config"
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"github.com/guildhouse-co/kedge/internal/quartermaster"
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)
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// Watcher watches for YANG instance data changes in ConfigMaps and triggers
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// compilation and SDK dispatch for underlay device configuration.
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type Watcher struct {
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cfg config.UnderlayConfig
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qm *quartermaster.Client
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log *zap.SugaredLogger
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clientset kubernetes.Interface
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}
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// NewWatcher creates a new underlay YANG watcher.
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func NewWatcher(cfg config.UnderlayConfig, qm *quartermaster.Client, log *zap.SugaredLogger) *Watcher {
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return &Watcher{cfg: cfg, qm: qm, log: log}
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}
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// Run starts watching for YANG instance data changes.
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func (w *Watcher) Run(ctx context.Context) error {
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if !w.cfg.Enabled {
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w.log.Info("underlay mode disabled, watcher idle")
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<-ctx.Done()
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return nil
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}
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// Build in-cluster K8s client.
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k8sConfig, err := rest.InClusterConfig()
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if err != nil {
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return fmt.Errorf("failed to get in-cluster config: %w", err)
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}
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w.clientset, err = kubernetes.NewForConfig(k8sConfig)
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if err != nil {
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return fmt.Errorf("failed to create k8s client: %w", err)
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}
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w.log.Infof("watching ConfigMap %s/%s for YANG instance data changes",
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w.cfg.Namespace, w.cfg.ConfigMapName)
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// TODO: Set up informer to watch ConfigMap for changes.
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// On change: trigger YANG compilation, then dispatch SDK calls via Bascule.
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// Each mutation is notarized via Quartermaster.
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<-ctx.Done()
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return nil
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}
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