/
actuator_delete.go
198 lines (173 loc) · 6.42 KB
/
actuator_delete.go
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package infrastructure
import (
"context"
"fmt"
"time"
"github.com/go-logr/logr"
"sigs.k8s.io/controller-runtime/pkg/client"
metalapi "github.com/metal-stack/gardener-extension-provider-metal/pkg/apis/metal"
"github.com/metal-stack/gardener-extension-provider-metal/pkg/apis/metal/helper"
metalclient "github.com/metal-stack/gardener-extension-provider-metal/pkg/metal/client"
metalgo "github.com/metal-stack/metal-go"
extensionscontroller "github.com/gardener/gardener/extensions/pkg/controller"
controllererrors "github.com/gardener/gardener/extensions/pkg/controller/error"
extensionsv1alpha1 "github.com/gardener/gardener/pkg/apis/extensions/v1alpha1"
)
type firewallDeleter struct {
ctx context.Context
logger logr.Logger
c client.Client
infrastructure *extensionsv1alpha1.Infrastructure
infrastructureConfig *metalapi.InfrastructureConfig
providerStatus *metalapi.InfrastructureStatus
cluster *extensionscontroller.Cluster
mclient *metalgo.Driver
clusterID string
clusterTag string
machineID string
projectID string
}
func (a *actuator) Delete(ctx context.Context, infrastructure *extensionsv1alpha1.Infrastructure, cluster *extensionscontroller.Cluster) error {
internalInfrastructureConfig, internalInfrastructureStatus, err := decodeInfrastructure(infrastructure, a.decoder)
if err != nil {
return err
}
cloudProfileConfig, err := helper.CloudProfileConfigFromCluster(cluster)
if err != nil {
return err
}
metalControlPlane, _, err := helper.FindMetalControlPlane(cloudProfileConfig, internalInfrastructureConfig.PartitionID)
if err != nil {
return err
}
mclient, err := metalclient.NewClient(ctx, a.client, metalControlPlane.Endpoint, &infrastructure.Spec.SecretRef)
if err != nil {
return err
}
deleter := &firewallDeleter{
ctx: ctx,
logger: a.logger,
c: a.client,
infrastructure: infrastructure,
infrastructureConfig: internalInfrastructureConfig,
providerStatus: internalInfrastructureStatus,
cluster: cluster,
mclient: mclient,
clusterID: string(cluster.Shoot.GetUID()),
clusterTag: ClusterTag(string(cluster.Shoot.GetUID())),
machineID: decodeMachineID(internalInfrastructureStatus.Firewall.MachineID),
projectID: internalInfrastructureConfig.ProjectID,
}
return delete(ctx, deleter)
}
func delete(ctx context.Context, d *firewallDeleter) error {
if d.machineID != "" {
err := deleteFirewall(d.logger, d.machineID, d.projectID, d.clusterTag, d.mclient)
if err != nil {
return err
}
d.logger.Info("firewall deleted", "clusterTag", d.clusterTag, "machineid", d.machineID)
d.providerStatus.Firewall.MachineID = ""
err = updateProviderStatus(ctx, d.c, d.infrastructure, d.providerStatus, d.infrastructure.Status.NodesCIDR)
if err != nil {
return err
}
}
ipsToFree, ipsToUpdate, err := metalclient.GetEphemeralIPsFromCluster(d.mclient, d.projectID, d.clusterID)
if err != nil {
d.logger.Error(err, "failed to query ephemeral cluster ips", "infrastructure", d.infrastructure.Name, "clusterID", d.clusterID)
return &controllererrors.RequeueAfterError{
Cause: err,
RequeueAfter: 30 * time.Second,
}
}
for _, ip := range ipsToFree {
_, err := d.mclient.IPFree(*ip.Ipaddress)
if err != nil {
d.logger.Error(err, "failed to release ephemeral cluster ip", "infrastructure", d.infrastructure.Name, "ip", *ip.Ipaddress)
return &controllererrors.RequeueAfterError{
Cause: err,
RequeueAfter: 30 * time.Second,
}
}
}
for _, ip := range ipsToUpdate {
err := metalclient.UpdateIPInCluster(d.mclient, ip, d.clusterID)
if err != nil {
d.logger.Error(err, "failed to remove cluster tags from ip which is member of other clusters", "infrastructure", d.infrastructure.Name, "ip", *ip.Ipaddress)
return &controllererrors.RequeueAfterError{
Cause: err,
RequeueAfter: 30 * time.Second,
}
}
}
static := metalgo.IPTypeStatic
resp, err := d.mclient.IPFind(&metalgo.IPFindRequest{
ProjectID: &d.projectID,
Tags: []string{egressTag(d.clusterID)},
Type: &static,
})
if err != nil {
return &controllererrors.RequeueAfterError{
Cause: fmt.Errorf("failed to list egress ips of cluster %w", err),
RequeueAfter: 30 * time.Second,
}
}
for _, ip := range resp.IPs {
if err := clearIPTags(d.mclient, *ip.Ipaddress); err != nil {
return &controllererrors.RequeueAfterError{
Cause: fmt.Errorf("could not remove egress tag from ip %s %w", *ip.Ipaddress, err),
RequeueAfter: 30 * time.Second,
}
}
}
if d.infrastructure.Status.NodesCIDR != nil {
privateNetworks, err := metalclient.GetPrivateNetworksFromNodeNetwork(d.mclient, d.projectID, *d.infrastructure.Status.NodesCIDR)
if err != nil {
d.logger.Error(err, "failed to query private network", "infrastructure", d.infrastructure.Name, "nodeCIDR", *d.infrastructure.Status.NodesCIDR)
return &controllererrors.RequeueAfterError{
Cause: err,
RequeueAfter: 30 * time.Second,
}
}
for _, pn := range privateNetworks {
_, err := d.mclient.NetworkFree(*pn.ID)
if err != nil {
d.logger.Error(err, "failed to release private network", "infrastructure", d.infrastructure.Name, "networkID", *pn.ID)
return &controllererrors.RequeueAfterError{
Cause: err,
RequeueAfter: 30 * time.Second,
}
}
}
}
return nil
}
func deleteFirewall(logger logr.Logger, machineID string, projectID string, clusterTag string, mclient *metalgo.Driver) error {
firewalls, err := metalclient.FindClusterFirewalls(mclient, clusterTag, projectID)
if err != nil {
return &controllererrors.RequeueAfterError{
Cause: err,
RequeueAfter: 30 * time.Second,
}
}
switch len(firewalls) {
case 0:
return nil
case 1:
actualID := *firewalls[0].ID
if actualID != machineID {
return fmt.Errorf("firewall from provider status does not match actual cluster firewall, can't do anything")
}
_, err = mclient.MachineDelete(machineID)
if err != nil {
return &controllererrors.RequeueAfterError{
Cause: fmt.Errorf("failed to delete firewall %w", err),
RequeueAfter: 30 * time.Second,
}
}
return nil
default:
return fmt.Errorf("multiple firewalls exist for this cluster, which should not happen. please delete firewalls manually.")
}
}