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openstack.go
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openstack.go
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package openstack
import (
"strings"
"time"
"github.com/openshift/installer/pkg/destroy/providers"
"github.com/openshift/installer/pkg/types"
openstackdefaults "github.com/openshift/installer/pkg/types/openstack/defaults"
"github.com/gophercloud/gophercloud"
"github.com/gophercloud/gophercloud/openstack/blockstorage/v3/snapshots"
"github.com/gophercloud/gophercloud/openstack/blockstorage/v3/volumes"
"github.com/gophercloud/gophercloud/openstack/compute/v2/extensions/servergroups"
"github.com/gophercloud/gophercloud/openstack/compute/v2/servers"
"github.com/gophercloud/gophercloud/openstack/imageservice/v2/images"
"github.com/gophercloud/gophercloud/openstack/loadbalancer/v2/apiversions"
"github.com/gophercloud/gophercloud/openstack/loadbalancer/v2/loadbalancers"
"github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/attributestags"
"github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/layer3/floatingips"
"github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/layer3/routers"
sg "github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/security/groups"
"github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/subnetpools"
"github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/trunks"
"github.com/gophercloud/gophercloud/openstack/networking/v2/networks"
"github.com/gophercloud/gophercloud/openstack/networking/v2/ports"
"github.com/gophercloud/gophercloud/openstack/networking/v2/subnets"
"github.com/gophercloud/gophercloud/openstack/objectstorage/v1/containers"
"github.com/gophercloud/gophercloud/openstack/objectstorage/v1/objects"
"github.com/gophercloud/gophercloud/pagination"
"github.com/gophercloud/utils/openstack/clientconfig"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
k8serrors "k8s.io/apimachinery/pkg/util/errors"
"k8s.io/apimachinery/pkg/util/wait"
)
const (
cinderCSIClusterIDKey = "cinder.csi.openstack.org/cluster"
minOctaviaVersionWithTagSupport = "v2.5"
)
// Filter holds the key/value pairs for the tags we will be matching
// against.
type Filter map[string]string
// ObjectWithTags is a generic way to represent an OpenStack object
// and its tags so that filtering objects client-side can be done in a generic
// way.
//
// Note we use UUID not Name as not all OpenStack services require a unique
// name.
type ObjectWithTags struct {
ID string
Tags map[string]string
}
// deleteFunc type is the interface a function needs to implement to be called as a goroutine.
// The (bool, error) return type mimics wait.ExponentialBackoff where the bool indicates successful
// completion, and the error is for unrecoverable errors.
type deleteFunc func(opts *clientconfig.ClientOpts, filter Filter, logger logrus.FieldLogger) (bool, error)
// ClusterUninstaller holds the various options for the cluster we want to delete.
type ClusterUninstaller struct {
// Cloud is the cloud name as set in clouds.yml
Cloud string
// Filter contains the openshiftClusterID to filter tags
Filter Filter
// InfraID contains unique cluster identifier
InfraID string
Logger logrus.FieldLogger
}
// New returns an OpenStack destroyer from ClusterMetadata.
func New(logger logrus.FieldLogger, metadata *types.ClusterMetadata) (providers.Destroyer, error) {
return &ClusterUninstaller{
Cloud: metadata.ClusterPlatformMetadata.OpenStack.Cloud,
Filter: metadata.ClusterPlatformMetadata.OpenStack.Identifier,
InfraID: metadata.InfraID,
Logger: logger,
}, nil
}
// Run is the entrypoint to start the uninstall process.
func (o *ClusterUninstaller) Run() error {
// deleteFuncs contains the functions that will be launched as
// goroutines.
deleteFuncs := map[string]deleteFunc{
"deleteServers": deleteServers,
"deleteServerGroups": deleteServerGroups,
"deleteTrunks": deleteTrunks,
"deleteLoadBalancers": deleteLoadBalancers,
"deletePorts": deletePorts,
"deleteSecurityGroups": deleteSecurityGroups,
"deleteRouters": deleteRouters,
"deleteSubnets": deleteSubnets,
"deleteSubnetPools": deleteSubnetPools,
"deleteNetworks": deleteNetworks,
"deleteContainers": deleteContainers,
"deleteVolumes": deleteVolumes,
"deleteFloatingIPs": deleteFloatingIPs,
"deleteImages": deleteImages,
}
returnChannel := make(chan string)
opts := openstackdefaults.DefaultClientOpts(o.Cloud)
err := cleanRouterRunner(opts, o.Filter, o.Logger)
if err != nil {
return err
}
// launch goroutines
for name, function := range deleteFuncs {
go deleteRunner(name, function, opts, o.Filter, o.Logger, returnChannel)
}
// wait for them to finish
for i := 0; i < len(deleteFuncs); i++ {
res := <-returnChannel
o.Logger.Debugf("goroutine %v complete", res)
}
// we need to untag the custom network if it was provided by the user
err = untagRunner(opts, o.InfraID, o.Logger)
if err != nil {
return err
}
return nil
}
func deleteRunner(deleteFuncName string, dFunction deleteFunc, opts *clientconfig.ClientOpts, filter Filter, logger logrus.FieldLogger, channel chan string) {
backoffSettings := wait.Backoff{
Duration: time.Second * 15,
Factor: 1.3,
Steps: 25,
}
err := wait.ExponentialBackoff(backoffSettings, func() (bool, error) {
return dFunction(opts, filter, logger)
})
if err != nil {
logger.Fatalf("Unrecoverable error/timed out: %v", err)
}
// record that the goroutine has run to completion
channel <- deleteFuncName
}
// filterObjects will do client-side filtering given an appropriately filled out
// list of ObjectWithTags.
func filterObjects(osObjects []ObjectWithTags, filters Filter) []ObjectWithTags {
objectsWithTags := []ObjectWithTags{}
filteredObjects := []ObjectWithTags{}
// first find the objects that have all the desired tags
for _, object := range osObjects {
allTagsFound := true
for key := range filters {
if _, ok := object.Tags[key]; !ok {
// doesn't have one of the tags we're looking for so skip it
allTagsFound = false
break
}
}
if allTagsFound {
objectsWithTags = append(objectsWithTags, object)
}
}
// now check that the values match
for _, object := range objectsWithTags {
valuesMatch := true
for key, val := range filters {
if object.Tags[key] != val {
valuesMatch = false
break
}
}
if valuesMatch {
filteredObjects = append(filteredObjects, object)
}
}
return filteredObjects
}
func filterTags(filters Filter) []string {
tags := []string{}
for k, v := range filters {
tags = append(tags, strings.Join([]string{k, v}, "="))
}
return tags
}
func deleteServers(opts *clientconfig.ClientOpts, filter Filter, logger logrus.FieldLogger) (bool, error) {
logger.Debug("Deleting openstack servers")
defer logger.Debugf("Exiting deleting openstack servers")
conn, err := clientconfig.NewServiceClient("compute", opts)
if err != nil {
logger.Error(err)
return false, nil
}
allPages, err := servers.List(conn, servers.ListOpts{}).AllPages()
if err != nil {
logger.Error(err)
return false, nil
}
allServers, err := servers.ExtractServers(allPages)
if err != nil {
logger.Error(err)
return false, nil
}
serverObjects := []ObjectWithTags{}
for _, server := range allServers {
serverObjects = append(
serverObjects, ObjectWithTags{
ID: server.ID,
Tags: server.Metadata})
}
filteredServers := filterObjects(serverObjects, filter)
for _, server := range filteredServers {
logger.Debugf("Deleting Server %q", server.ID)
err = servers.Delete(conn, server.ID).ExtractErr()
if err != nil {
// Ignore the error if the server cannot be found and return with an appropriate message if it's another type of error
var gerr gophercloud.ErrDefault404
if !errors.As(err, &gerr) {
logger.Errorf("Deleting server %q failed: %v", server.ID, err)
return false, nil
}
logger.Debugf("Cannot find server %q. It's probably already been deleted.", server.ID)
}
}
return len(filteredServers) == 0, nil
}
func deleteServerGroups(opts *clientconfig.ClientOpts, filter Filter, logger logrus.FieldLogger) (bool, error) {
logger.Debug("Deleting openstack server groups")
defer logger.Debugf("Exiting deleting openstack server groups")
// We need to delete all server groups that have names with the cluster
// ID as a prefix
var clusterID string
for k, v := range filter {
if strings.ToLower(k) == "openshiftclusterid" {
clusterID = v
break
}
}
conn, err := clientconfig.NewServiceClient("compute", opts)
if err != nil {
logger.Error(err)
return false, nil
}
allPages, err := servergroups.List(conn, nil).AllPages()
if err != nil {
logger.Error(err)
return false, nil
}
allServerGroups, err := servergroups.ExtractServerGroups(allPages)
if err != nil {
logger.Error(err)
return false, nil
}
filteredGroups := make([]servergroups.ServerGroup, 0, len(allServerGroups))
for _, serverGroup := range allServerGroups {
if strings.HasPrefix(serverGroup.Name, clusterID) {
filteredGroups = append(filteredGroups, serverGroup)
}
}
for _, serverGroup := range filteredGroups {
logger.Debugf("Deleting Server Group %q", serverGroup.ID)
if err = servergroups.Delete(conn, serverGroup.ID).ExtractErr(); err != nil {
// Ignore the error if the server cannot be found and
// return with an appropriate message if it's another
// type of error
var gerr gophercloud.ErrDefault404
if !errors.As(err, &gerr) {
logger.Errorf("Deleting server group %q failed: %v", serverGroup.ID, err)
return false, nil
}
logger.Debugf("Cannot find server group %q. It's probably already been deleted.", serverGroup.ID)
}
}
return len(filteredGroups) == 0, nil
}
func deletePorts(opts *clientconfig.ClientOpts, filter Filter, logger logrus.FieldLogger) (bool, error) {
logger.Debug("Deleting openstack ports")
defer logger.Debugf("Exiting deleting openstack ports")
conn, err := clientconfig.NewServiceClient("network", opts)
if err != nil {
logger.Error(err)
return false, nil
}
tags := filterTags(filter)
listOpts := ports.ListOpts{
TagsAny: strings.Join(tags, ","),
}
allPages, err := ports.List(conn, listOpts).AllPages()
if err != nil {
logger.Error(err)
return false, nil
}
allPorts, err := ports.ExtractPorts(allPages)
if err != nil {
logger.Error(err)
return false, nil
}
for _, port := range allPorts {
listOpts := floatingips.ListOpts{
PortID: port.ID,
}
allPages, err := floatingips.List(conn, listOpts).AllPages()
if err != nil {
logger.Error(err)
return false, nil
}
allFIPs, err := floatingips.ExtractFloatingIPs(allPages)
if err != nil {
logger.Error(err)
return false, nil
}
// If a user provisioned floating ip was used, it needs to be dissociated.
// Any floating Ip's associated with ports that are going to be deleted will be dissociated.
for _, fip := range allFIPs {
logger.Debugf("Dissociating Floating IP %q", fip.ID)
_, err := floatingips.Update(conn, fip.ID, floatingips.UpdateOpts{}).Extract()
if err != nil {
// Ignore the error if the floating ip cannot be found and return with an appropriate message if it's another type of error
var gerr gophercloud.ErrDefault404
if !errors.As(err, &gerr) {
logger.Errorf("While deleting port %q, the update of the floating IP %q failed with error: %v", port.ID, fip.ID, err)
return false, nil
}
logger.Debugf("Cannot find floating ip %q. It's probably already been deleted.", fip.ID)
}
}
logger.Debugf("Deleting Port %q", port.ID)
err = ports.Delete(conn, port.ID).ExtractErr()
if err != nil {
// This can fail when port is still in use so return/retry
logger.Debugf("Deleting Port %q failed with error: %v", port.ID, err)
return false, nil
}
}
return len(allPorts) == 0, nil
}
func deleteSecurityGroups(opts *clientconfig.ClientOpts, filter Filter, logger logrus.FieldLogger) (bool, error) {
logger.Debug("Deleting openstack security-groups")
defer logger.Debugf("Exiting deleting openstack security-groups")
conn, err := clientconfig.NewServiceClient("network", opts)
if err != nil {
logger.Error(err)
return false, nil
}
tags := filterTags(filter)
listOpts := sg.ListOpts{
TagsAny: strings.Join(tags, ","),
}
allPages, err := sg.List(conn, listOpts).AllPages()
if err != nil {
logger.Error(err)
return false, nil
}
allGroups, err := sg.ExtractGroups(allPages)
if err != nil {
logger.Error(err)
return false, nil
}
for _, group := range allGroups {
logger.Debugf("Deleting Security Group: %q", group.ID)
err = sg.Delete(conn, group.ID).ExtractErr()
if err != nil {
// Ignore the error if the security group cannot be found
var gerr gophercloud.ErrDefault404
if !errors.As(err, &gerr) {
// This can fail when sg is still in use by servers
logger.Debugf("Deleting Security Group %q failed with error: %v", group.ID, err)
return false, nil
}
logger.Debugf("Cannot find security group %q. It's probably already been deleted.", group.ID)
}
}
return len(allGroups) == 0, nil
}
func updateFips(allFIPs []floatingips.FloatingIP, opts *clientconfig.ClientOpts, filter Filter, logger logrus.FieldLogger) error {
conn, err := clientconfig.NewServiceClient("network", opts)
if err != nil {
return err
}
for _, fip := range allFIPs {
_, err := floatingips.Update(conn, fip.ID, floatingips.UpdateOpts{}).Extract()
if err != nil {
// Ignore the error if the resource cannot be found and return with an appropriate message if it's another type of error
var gerr gophercloud.ErrDefault404
if !errors.As(err, &gerr) {
logger.Errorf("Updating floating IP %q for Router failed: %v", fip.ID, err)
return err
}
logger.Debugf("Cannot find floating ip %q. It's probably already been deleted.", fip.ID)
}
}
return nil
}
func deleteRouters(opts *clientconfig.ClientOpts, filter Filter, logger logrus.FieldLogger) (bool, error) {
logger.Debug("Deleting openstack routers")
defer logger.Debugf("Exiting deleting openstack routers")
conn, err := clientconfig.NewServiceClient("network", opts)
if err != nil {
logger.Error(err)
return false, nil
}
tags := filterTags(filter)
listOpts := routers.ListOpts{
TagsAny: strings.Join(tags, ","),
}
allPages, err := routers.List(conn, listOpts).AllPages()
if err != nil {
logger.Error(err)
return false, nil
}
allRouters, err := routers.ExtractRouters(allPages)
if err != nil {
logger.Error(err)
return false, nil
}
for _, router := range allRouters {
fipOpts := floatingips.ListOpts{
RouterID: router.ID,
}
fipPages, err := floatingips.List(conn, fipOpts).AllPages()
if err != nil {
logger.Error(err)
return false, nil
}
allFIPs, err := floatingips.ExtractFloatingIPs(fipPages)
if err != nil {
logger.Error(err)
return false, nil
}
// If a user provisioned floating ip was used, it needs to be dissociated
// Any floating Ip's associated with routers that are going to be deleted will be dissociated
err = updateFips(allFIPs, opts, filter, logger)
if err != nil {
logger.Error(err)
return false, nil
}
// Clean Gateway interface
updateOpts := routers.UpdateOpts{
GatewayInfo: &routers.GatewayInfo{},
}
_, err = routers.Update(conn, router.ID, updateOpts).Extract()
if err != nil {
logger.Error(err)
}
_, err = removeRouterInterfaces(conn, filter, router, logger)
if err != nil {
return false, nil
}
logger.Debugf("Deleting Router %q", router.ID)
err = routers.Delete(conn, router.ID).ExtractErr()
if err != nil {
// Ignore the error if the router cannot be found and return with an appropriate message if it's another type of error
var gerr gophercloud.ErrDefault404
if !errors.As(err, &gerr) {
logger.Errorf("Deleting router %q failed: %v", router.ID, err)
return false, nil
}
logger.Debugf("Cannot find router %q. It's probably already been deleted.", router.ID)
}
}
return len(allRouters) == 0, nil
}
func deleteCustomRouterInterfaces(opts *clientconfig.ClientOpts, filter Filter, logger logrus.FieldLogger) (bool, error) {
logger.Debugf("Removing interfaces from custom router")
defer logger.Debug("Exiting removal of interfaces from custom router")
conn, err := clientconfig.NewServiceClient("network", opts)
if err != nil {
logger.Error(err)
return false, nil
}
// Find the machines Network by the master machines Ports.
// Any worker nodes ports, including the ones used for additionalNetworks,
// are tagged with cluster-api-provider-openstack and should be excluded
// to ensure only the primary Network ports are filtered.
tags := filterTags(filter)
listOpts := ports.ListOpts{
Tags: strings.Join(tags, ","),
DeviceOwner: "compute:nova",
NotTags: "cluster-api-provider-openstack",
}
allPages, err := ports.List(conn, listOpts).AllPages()
if err != nil {
logger.Debug(err)
return false, nil
}
allServerPorts, err := ports.ExtractPorts(allPages)
if err != nil {
logger.Debug(err)
return false, nil
}
if len(allServerPorts) == 0 {
return true, nil
}
// Only proceed with clean up if is a provided Network
networkListOpts := networks.ListOpts{
NotTags: strings.Join(tags, ","),
ID: allServerPorts[0].NetworkID,
}
allNetworksPages, err := networks.List(conn, networkListOpts).AllPages()
if err != nil {
logger.Debug(err)
return false, nil
}
allNetworks, err := networks.ExtractNetworks(allNetworksPages)
if err != nil {
logger.Debug(err)
return false, nil
}
if len(allNetworks) == 0 {
return true, nil
}
portListOpts := ports.ListOpts{
NetworkID: allServerPorts[0].NetworkID,
}
allPagesPort, err := ports.List(conn, portListOpts).AllPages()
if err != nil {
logger.Error(err)
return false, nil
}
allPrimayNetworkPorts, err := ports.ExtractPorts(allPagesPort)
if err != nil {
logger.Error(err)
return false, nil
}
// Discover router by interface from the primary Network
router, err := getRouterByPort(conn, allPrimayNetworkPorts)
if err != nil {
logger.Debug(err)
return false, nil
}
if router.ID == "" {
return true, nil
}
fipOpts := floatingips.ListOpts{
RouterID: router.ID,
Tags: strings.Join(tags, ","),
}
fipPages, err := floatingips.List(conn, fipOpts).AllPages()
if err != nil {
logger.Error(err)
return false, nil
}
allFIPs, err := floatingips.ExtractFloatingIPs(fipPages)
if err != nil {
logger.Error(err)
return false, nil
}
// disassociate any fips created by Kuryr linked to the router
err = updateFips(allFIPs, opts, filter, logger)
if err != nil {
logger.Error(err)
return false, nil
}
removed, err := removeRouterInterfaces(conn, filter, router, logger)
if err != nil {
logger.Debug(err)
return false, nil
}
return removed, nil
}
func removeRouterInterfaces(client *gophercloud.ServiceClient, filter Filter, router routers.Router, logger logrus.FieldLogger) (bool, error) {
// Get router interface ports
portListOpts := ports.ListOpts{
DeviceID: router.ID,
}
allPagesPort, err := ports.List(client, portListOpts).AllPages()
if err != nil {
logger.Error(err)
return false, errors.Wrap(err, "failed to get ports list")
}
allPorts, err := ports.ExtractPorts(allPagesPort)
if err != nil {
logger.Error(err)
return false, errors.Wrap(err, "failed to extract ports list")
}
tags := filterTags(filter)
SubnetlistOpts := subnets.ListOpts{
TagsAny: strings.Join(tags, ","),
}
allSubnetsPage, err := subnets.List(client, SubnetlistOpts).AllPages()
if err != nil {
logger.Debug(err)
return false, errors.Wrap(err, "failed to list subnets list")
}
allSubnets, err := subnets.ExtractSubnets(allSubnetsPage)
if err != nil {
logger.Debug(err)
return false, errors.Wrap(err, "failed to extract subnets list")
}
clusterTag := "openshiftClusterID=" + filter["openshiftClusterID"]
clusterRouter := isClusterRouter(clusterTag, router.Tags)
var customInterfaces []ports.Port
// map to keep track of whethere interface for subnet was already removed
removedSubnets := make(map[string]bool)
for _, port := range allPorts {
for _, IP := range port.FixedIPs {
// Skip removal if Router was not created by CNO or installer and
// interface is not handled by the Cluster
if !clusterRouter && !isClusterSubnet(allSubnets, IP.SubnetID) {
customInterfaces = append(customInterfaces, port)
continue
}
if !removedSubnets[IP.SubnetID] {
removeOpts := routers.RemoveInterfaceOpts{
SubnetID: IP.SubnetID,
}
logger.Debugf("Removing Subnet %q from Router %q", IP.SubnetID, router.ID)
_, err := routers.RemoveInterface(client, router.ID, removeOpts).Extract()
if err != nil {
var gerr gophercloud.ErrDefault404
if !errors.As(err, &gerr) {
// This can fail when subnet is still in use
logger.Debugf("Removing Subnet %q from Router %q failed: %v", IP.SubnetID, router.ID, err)
return false, nil
}
logger.Debugf("Cannot find subnet %q. It's probably already been removed from router %q.", IP.SubnetID, router.ID)
}
removedSubnets[IP.SubnetID] = true
}
}
}
//Allow to remain attached only interfaces not Cluster tagged
return len(allPorts) == len(customInterfaces), nil
}
func isClusterRouter(clusterTag string, tags []string) bool {
for _, tag := range tags {
if clusterTag == tag {
return true
}
}
return false
}
func getRouterByPort(client *gophercloud.ServiceClient, allPorts []ports.Port) (routers.Router, error) {
empty := routers.Router{}
for _, port := range allPorts {
if port.DeviceID != "" {
page, err := routers.List(client, routers.ListOpts{ID: port.DeviceID}).AllPages()
if err != nil {
return empty, errors.Wrap(err, "failed to get router list")
}
routerList, err := routers.ExtractRouters(page)
if err != nil {
return empty, errors.Wrap(err, "failed to extract routers list")
}
if len(routerList) == 1 {
return routerList[0], nil
}
}
}
return empty, nil
}
func deleteLeftoverLoadBalancers(opts *clientconfig.ClientOpts, logger logrus.FieldLogger, networkID string) {
conn, err := clientconfig.NewServiceClient("load-balancer", opts)
if err != nil {
// Ignore the error if Octavia is not available for the cloud
var gerr *gophercloud.ErrEndpointNotFound
if errors.As(err, &gerr) {
logger.Debug("Skip load balancer deletion because Octavia endpoint is not found")
return
}
logger.Error(err)
return
}
listOpts := loadbalancers.ListOpts{
VipNetworkID: networkID,
}
allPages, err := loadbalancers.List(conn, listOpts).AllPages()
if err != nil {
logger.Error(err)
return
}
allLoadBalancers, err := loadbalancers.ExtractLoadBalancers(allPages)
if err != nil {
logger.Error(err)
return
}
deleteOpts := loadbalancers.DeleteOpts{
Cascade: true,
}
for _, loadbalancer := range allLoadBalancers {
if !strings.HasPrefix(loadbalancer.Description, "Kubernetes external service") {
logger.Debugf("Not deleting LoadBalancer %q with description %q", loadbalancer.ID, loadbalancer.Description)
continue
}
logger.Debugf("Deleting LoadBalancer %q", loadbalancer.ID)
err = loadbalancers.Delete(conn, loadbalancer.ID, deleteOpts).ExtractErr()
if err != nil {
// Ignore the error if the load balancer cannot be found
var gerr gophercloud.ErrDefault404
if !errors.As(err, &gerr) {
// This can fail when the load balancer is still in use so return/retry
logger.Debugf("Deleting load balancer %q failed: %v", loadbalancer.ID, err)
return
}
logger.Debugf("Cannot find load balancer %q. It's probably already been deleted.", loadbalancer.ID)
}
}
return
}
func isClusterSubnet(subnets []subnets.Subnet, subnetID string) bool {
for _, subnet := range subnets {
if subnet.ID == subnetID {
return true
}
}
return false
}
func deleteSubnets(opts *clientconfig.ClientOpts, filter Filter, logger logrus.FieldLogger) (bool, error) {
logger.Debug("Deleting openstack subnets")
defer logger.Debugf("Exiting deleting openstack subnets")
conn, err := clientconfig.NewServiceClient("network", opts)
if err != nil {
logger.Error(err)
return false, nil
}
tags := filterTags(filter)
listOpts := subnets.ListOpts{
TagsAny: strings.Join(tags, ","),
}
allPages, err := subnets.List(conn, listOpts).AllPages()
if err != nil {
logger.Error(err)
return false, nil
}
allSubnets, err := subnets.ExtractSubnets(allPages)
if err != nil {
logger.Error(err)
return false, nil
}
for _, subnet := range allSubnets {
logger.Debugf("Deleting Subnet: %q", subnet.ID)
err = subnets.Delete(conn, subnet.ID).ExtractErr()
if err != nil {
// Ignore the error if the subnet cannot be found
var gerr gophercloud.ErrDefault404
if !errors.As(err, &gerr) {
// This can fail when subnet is still in use
logger.Debugf("Deleting Subnet %q failed: %v", subnet.ID, err)
return false, nil
}
logger.Debugf("Cannot find subnet %q. It's probably already been deleted.", subnet.ID)
}
}
return len(allSubnets) == 0, nil
}
func deleteNetworks(opts *clientconfig.ClientOpts, filter Filter, logger logrus.FieldLogger) (bool, error) {
logger.Debug("Deleting openstack networks")
defer logger.Debugf("Exiting deleting openstack networks")
conn, err := clientconfig.NewServiceClient("network", opts)
if err != nil {
logger.Error(err)
return false, nil
}
tags := filterTags(filter)
listOpts := networks.ListOpts{
TagsAny: strings.Join(tags, ","),
}
allPages, err := networks.List(conn, listOpts).AllPages()
if err != nil {
logger.Error(err)
return false, nil
}
allNetworks, err := networks.ExtractNetworks(allPages)
if err != nil {
logger.Error(err)
return false, nil
}
for _, network := range allNetworks {
logger.Debugf("Deleting network: %q", network.ID)
err = networks.Delete(conn, network.ID).ExtractErr()
if err != nil {
// Ignore the error if the network cannot be found
var gerr gophercloud.ErrDefault404
if !errors.As(err, &gerr) {
// This can fail when network is still in use
logger.Debugf("Deleting Network %q failed: %v", network.ID, err)
// Try to delete eventual leftover load balancers
deleteLeftoverLoadBalancers(opts, logger, network.ID)
return false, nil
}
logger.Debugf("Cannot find network %q. It's probably already been deleted.", network.ID)
}
}
return len(allNetworks) == 0, nil
}
func deleteContainers(opts *clientconfig.ClientOpts, filter Filter, logger logrus.FieldLogger) (bool, error) {
logger.Debug("Deleting openstack containers")
defer logger.Debugf("Exiting deleting openstack containers")
conn, err := clientconfig.NewServiceClient("object-store", opts)
if err != nil {
// Ignore the error if Swift is not available for the cloud
var gerr *gophercloud.ErrEndpointNotFound
if errors.As(err, &gerr) {
logger.Debug("Skip container deletion because Swift endpoint is not found")
return true, nil
}
logger.Error(err)
return false, nil
}
listOpts := containers.ListOpts{Full: false}
allPages, err := containers.List(conn, listOpts).AllPages()
if err != nil {
// Ignore the error if the user doesn't have the swiftoperator role.
// Depending on the configuration Swift returns different error codes:
// 403 with Keystone and 401 with internal Swauth.
// It means we have to catch them both.
// More information about Swith auth: https://docs.openstack.org/swift/latest/overview_auth.html
var gerr403 gophercloud.ErrDefault403
if errors.As(err, &gerr403) {
logger.Debug("Skip container deletion because the user doesn't have the `swiftoperator` role")
return true, nil
}
var gerr401 gophercloud.ErrDefault401
if errors.As(err, &gerr401) {
logger.Debug("Skip container deletion because the user doesn't have the `swiftoperator` role")
return true, nil
}
logger.Error(err)
return false, nil
}
allContainers, err := containers.ExtractNames(allPages)
if err != nil {
logger.Error(err)
return false, nil
}
for _, container := range allContainers {
metadata, err := containers.Get(conn, container, nil).ExtractMetadata()
if err != nil {
// Some containers that we fetched previously can already be deleted in
// runtime. We should ignore these cases and continue to iterate through
// the remaining containers.
var gerr gophercloud.ErrDefault404
if errors.As(err, &gerr) {
continue
}
logger.Error(err)
return false, nil
}
for key, val := range filter {
// Swift mangles the case so openshiftClusterID becomes
// Openshiftclusterid in the X-Container-Meta- HEAD output
titlekey := strings.Title(strings.ToLower(key))
if metadata[titlekey] == val {
logger.Debugf("Bulk deleting container %q objects", container)
pager := objects.List(conn, container, &objects.ListOpts{
Limit: 50,
})
err = pager.EachPage(func(page pagination.Page) (bool, error) {
objectsOnPage, err := objects.ExtractNames(page)
if err != nil {
return false, err
}
resp, err := objects.BulkDelete(conn, container, objectsOnPage).Extract()
if err != nil {
return false, err
}
if len(resp.Errors) > 0 {
// Convert resp.Errors to golang errors.
// Each error is represented by a list of 2 strings, where the first one
// is the object name, and the second one contains an error message.
errs := make([]error, len(resp.Errors))
for i, objectError := range resp.Errors {
errs[i] = errors.Errorf("cannot delete object %v: %v", objectError[0], objectError[1])
}
return false, errors.Errorf("errors occured during bulk deleting of container %v objects: %v", container, k8serrors.NewAggregate(errs))
}
return true, nil
})
if err != nil {
var gerr gophercloud.ErrDefault404
if !errors.As(err, &gerr) {
logger.Errorf("Bulk deleting of container %q objects failed: %v", container, err)
return false, nil
}
}
logger.Debugf("Deleting container %q", container)
_, err = containers.Delete(conn, container).Extract()
if err != nil {
// Ignore the error if the container cannot be found and return with an appropriate message if it's another type of error
var gerr gophercloud.ErrDefault404
if !errors.As(err, &gerr) {
logger.Errorf("Deleting container %q failed: %v", container, err)
return false, nil
}
logger.Debugf("Cannot find container %q. It's probably already been deleted.", container)
}
// If a metadata key matched, we're done so break from the loop
break
}
}
}
return true, nil
}
func deleteTrunks(opts *clientconfig.ClientOpts, filter Filter, logger logrus.FieldLogger) (bool, error) {
logger.Debug("Deleting openstack trunks")
defer logger.Debugf("Exiting deleting openstack trunks")
conn, err := clientconfig.NewServiceClient("network", opts)
if err != nil {
logger.Error(err)
return false, nil
}
tags := filterTags(filter)
listOpts := trunks.ListOpts{
TagsAny: strings.Join(tags, ","),
}
allPages, err := trunks.List(conn, listOpts).AllPages()
if err != nil {
var gerr gophercloud.ErrDefault404