/
delete.go
74 lines (58 loc) · 1.88 KB
/
delete.go
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package firewall
import (
"context"
"fmt"
"time"
v2 "github.com/metal-stack/firewall-controller-manager/api/v2"
"github.com/metal-stack/firewall-controller-manager/controllers"
"github.com/metal-stack/metal-go/api/client/machine"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
func (c *controller) Delete(r *controllers.Ctx[*v2.Firewall]) error {
err := c.deleteFirewallMonitor(r.Ctx, r.Target)
if err != nil {
return fmt.Errorf("unable to delete firewall monitor: %w", err)
}
fws, err := c.firewallCache.Get(r.Ctx, r.Target)
if err != nil {
return controllers.RequeueAfter(10*time.Second, err.Error())
}
if len(fws) == 0 {
r.Log.Info("firewall already deleted")
return nil
}
if len(fws) > 1 {
r.Log.Error(fmt.Errorf("multiple associated firewalls found for deletion"), "deleting all of them", "amount", len(fws))
}
for _, f := range fws {
f := f
if f.ID == nil {
continue
}
resp, err := c.c.GetMetal().Machine().FreeMachine(machine.NewFreeMachineParams().WithID(*f.ID).WithContext(r.Ctx), nil)
if err != nil {
r.Log.Error(err, "firewall deletion failed")
return controllers.RequeueAfter(5*time.Second, "firewall deletion failed, retrying")
}
r.Log.Info("deleted firewall", "firewall-name", f.Name, "id", *resp.Payload.ID)
c.recorder.Eventf(r.Target, "Normal", "Delete", "deleted firewall %s id %s", r.Target.Name, *resp.Payload.ID)
}
return nil
}
func (c *controller) deleteFirewallMonitor(ctx context.Context, fw *v2.Firewall) error {
mon := &v2.FirewallMonitor{
ObjectMeta: metav1.ObjectMeta{
Name: fw.Name,
Namespace: c.c.GetShootNamespace(),
},
}
err := c.c.GetShootClient().Delete(ctx, mon)
if err != nil {
if apierrors.IsNotFound(err) {
return nil
}
return err
}
return controllers.RequeueAfter(1*time.Second, "waiting for firewall monitor to be deleted, requeuing")
}