// Get pool for a listener. A listener always has exactly one pool.
func getPoolByListenerID(client *gophercloud.ServiceClient, loadbalancerID string, listenerID string) (*v2pools.Pool, error) {
listenerPools := make([]v2pools.Pool, 0, 1)
err := v2pools.List(client, v2pools.ListOpts{LoadbalancerID: loadbalancerID}).EachPage(func(page pagination.Page) (bool, error) {
poolsList, err := v2pools.ExtractPools(page)
if err != nil {
return false, err
}
for _, p := range poolsList {
for _, l := range p.Listeners {
if l.ID == listenerID {
listenerPools = append(listenerPools, p)
}
}
}
if len(listenerPools) > 1 {
return false, ErrMultipleResults
}
return true, nil
})
if err != nil {
if isNotFound(err) {
return nil, ErrNotFound
}
return nil, err
}
if len(listenerPools) == 0 {
return nil, ErrNotFound
} else if len(listenerPools) > 1 {
return nil, ErrMultipleResults
}
return &listenerPools[0], nil
}
func listPools(t *testing.T) {
err := pools.List(base.Client, pools.ListOpts{}).EachPage(func(page pagination.Page) (bool, error) {
poolsList, err := pools.ExtractPools(page)
if err != nil {
t.Errorf("Failed to extract Pools: %v", err)
return false, err
}
for _, pool := range poolsList {
t.Logf("Listing Pool: ID [%s] Name [%s] Listeners [%s] LBMethod [%s]",
pool.ID, pool.Name, pool.Listeners, pool.LBMethod)
}
return true, nil
})
th.AssertNoErr(t, err)
}
func (lbaas *LbaasV2) UpdateLoadBalancer(clusterName string, service *v1.Service, nodeNames []string) error {
loadBalancerName := cloudprovider.GetLoadBalancerName(service)
glog.V(4).Infof("UpdateLoadBalancer(%v, %v, %v)", clusterName, loadBalancerName, nodeNames)
ports := service.Spec.Ports
if len(ports) == 0 {
return fmt.Errorf("no ports provided to openstack load balancer")
}
loadbalancer, err := getLoadbalancerByName(lbaas.network, loadBalancerName)
if err != nil {
return err
}
if loadbalancer == nil {
return fmt.Errorf("Loadbalancer %s does not exist", loadBalancerName)
}
// Get all listeners for this loadbalancer, by "port key".
type portKey struct {
Protocol string
Port int
}
lbListeners := make(map[portKey]listeners.Listener)
err = listeners.List(lbaas.network, listeners.ListOpts{LoadbalancerID: loadbalancer.ID}).EachPage(func(page pagination.Page) (bool, error) {
listenersList, err := listeners.ExtractListeners(page)
if err != nil {
return false, err
}
for _, l := range listenersList {
for _, lb := range l.Loadbalancers {
// Double check this Listener belongs to the LB we're updating. Neutron's API filtering
// can't be counted on in older releases (i.e Liberty).
if loadbalancer.ID == lb.ID {
key := portKey{Protocol: l.Protocol, Port: l.ProtocolPort}
lbListeners[key] = l
break
}
}
}
return true, nil
})
if err != nil {
return err
}
// Get all pools for this loadbalancer, by listener ID.
lbPools := make(map[string]v2pools.Pool)
err = v2pools.List(lbaas.network, v2pools.ListOpts{LoadbalancerID: loadbalancer.ID}).EachPage(func(page pagination.Page) (bool, error) {
poolsList, err := v2pools.ExtractPools(page)
if err != nil {
return false, err
}
for _, p := range poolsList {
for _, l := range p.Listeners {
// Double check this Pool belongs to the LB we're deleting. Neutron's API filtering
// can't be counted on in older releases (i.e Liberty).
for _, val := range lbListeners {
if val.ID == l.ID {
lbPools[l.ID] = p
break
}
}
}
}
return true, nil
})
if err != nil {
return err
}
// Compose Set of member (addresses) that _should_ exist
addrs := map[string]empty{}
for _, nodeName := range nodeNames {
addr, err := getAddressByName(lbaas.compute, types.NodeName(nodeName))
if err != nil {
return err
}
addrs[addr] = empty{}
}
// Check for adding/removing members associated with each port
for _, port := range ports {
// Get listener associated with this port
listener, ok := lbListeners[portKey{
Protocol: string(port.Protocol),
Port: int(port.Port),
}]
if !ok {
return fmt.Errorf("Loadbalancer %s does not contain required listener for port %d and protocol %s", loadBalancerName, port.Port, port.Protocol)
}
// Get pool associated with this listener
pool, ok := lbPools[listener.ID]
if !ok {
return fmt.Errorf("Loadbalancer %s does not contain required pool for listener %s", loadBalancerName, listener.ID)
}
// Find existing pool members (by address) for this port
members := make(map[string]v2pools.Member)
err := v2pools.ListAssociateMembers(lbaas.network, pool.ID, v2pools.MemberListOpts{}).EachPage(func(page pagination.Page) (bool, error) {
membersList, err := v2pools.ExtractMembers(page)
if err != nil {
return false, err
}
for _, member := range membersList {
members[member.Address] = member
}
return true, nil
})
if err != nil {
return err
}
// Add any new members for this port
for addr := range addrs {
if _, ok := members[addr]; ok && members[addr].ProtocolPort == int(port.NodePort) {
// Already exists, do not create member
continue
}
_, err := v2pools.CreateAssociateMember(lbaas.network, pool.ID, v2pools.MemberCreateOpts{
Address: addr,
ProtocolPort: int(port.NodePort),
SubnetID: lbaas.opts.SubnetId,
}).Extract()
if err != nil {
return err
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
// Remove any old members for this port
for _, member := range members {
if _, ok := addrs[member.Address]; ok && member.ProtocolPort == int(port.NodePort) {
// Still present, do not delete member
continue
}
err = v2pools.DeleteMember(lbaas.network, pool.ID, member.ID).ExtractErr()
if err != nil && !isNotFound(err) {
return err
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
}
return nil
}
func (lbaas *LbaasV2) EnsureLoadBalancerDeleted(clusterName string, service *v1.Service) error {
loadBalancerName := cloudprovider.GetLoadBalancerName(service)
glog.V(4).Infof("EnsureLoadBalancerDeleted(%v, %v)", clusterName, loadBalancerName)
loadbalancer, err := getLoadbalancerByName(lbaas.network, loadBalancerName)
if err != nil && err != ErrNotFound {
return err
}
if loadbalancer == nil {
return nil
}
if lbaas.opts.FloatingNetworkId != "" && loadbalancer != nil {
portID, err := getPortIDByIP(lbaas.network, loadbalancer.VipAddress)
if err != nil {
return err
}
floatingIP, err := getFloatingIPByPortID(lbaas.network, portID)
if err != nil && err != ErrNotFound {
return err
}
if floatingIP != nil {
err = floatingips.Delete(lbaas.network, floatingIP.ID).ExtractErr()
if err != nil && !isNotFound(err) {
return err
}
}
}
// get all listeners associated with this loadbalancer
var listenerIDs []string
err = listeners.List(lbaas.network, listeners.ListOpts{LoadbalancerID: loadbalancer.ID}).EachPage(func(page pagination.Page) (bool, error) {
listenerList, err := listeners.ExtractListeners(page)
if err != nil {
return false, err
}
for _, listener := range listenerList {
listenerIDs = append(listenerIDs, listener.ID)
}
return true, nil
})
if err != nil {
return err
}
// get all pools (and health monitors) associated with this loadbalancer
var poolIDs []string
var monitorIDs []string
err = v2pools.List(lbaas.network, v2pools.ListOpts{LoadbalancerID: loadbalancer.ID}).EachPage(func(page pagination.Page) (bool, error) {
poolsList, err := v2pools.ExtractPools(page)
if err != nil {
return false, err
}
for _, pool := range poolsList {
poolIDs = append(poolIDs, pool.ID)
monitorIDs = append(monitorIDs, pool.MonitorID)
}
return true, nil
})
if err != nil {
return err
}
// get all members associated with each poolIDs
var memberIDs []string
for _, poolID := range poolIDs {
err := v2pools.ListAssociateMembers(lbaas.network, poolID, v2pools.MemberListOpts{}).EachPage(func(page pagination.Page) (bool, error) {
membersList, err := v2pools.ExtractMembers(page)
if err != nil {
return false, err
}
for _, member := range membersList {
memberIDs = append(memberIDs, member.ID)
}
return true, nil
})
if err != nil {
return err
}
}
// delete all monitors
for _, monitorID := range monitorIDs {
err := v2monitors.Delete(lbaas.network, monitorID).ExtractErr()
if err != nil && !isNotFound(err) {
return err
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
// delete all members and pools
for _, poolID := range poolIDs {
// delete all members for this pool
for _, memberID := range memberIDs {
err := v2pools.DeleteMember(lbaas.network, poolID, memberID).ExtractErr()
if err != nil && !isNotFound(err) {
return err
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
// delete pool
err := v2pools.Delete(lbaas.network, poolID).ExtractErr()
if err != nil && !isNotFound(err) {
return err
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
// delete all listeners
for _, listenerID := range listenerIDs {
err := listeners.Delete(lbaas.network, listenerID).ExtractErr()
if err != nil && !isNotFound(err) {
return err
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
// delete loadbalancer
err = loadbalancers.Delete(lbaas.network, loadbalancer.ID).ExtractErr()
if err != nil && !isNotFound(err) {
return err
}
waitLoadbalancerDeleted(lbaas.network, loadbalancer.ID)
// Delete the Security Group
if lbaas.opts.ManageSecurityGroups {
// Generate Name
lbSecGroupName := getSecurityGroupName(clusterName, service)
lbSecGroupID, err := groups.IDFromName(lbaas.network, lbSecGroupName)
if err != nil {
glog.V(1).Infof("Error occurred finding security group: %s: %v", lbSecGroupName, err)
return nil
}
lbSecGroup := groups.Delete(lbaas.network, lbSecGroupID)
if lbSecGroup.Err != nil && !isNotFound(lbSecGroup.Err) {
return lbSecGroup.Err
}
// Delete the rules in the Node Security Group
opts := rules.ListOpts{
SecGroupID: lbaas.opts.NodeSecurityGroupID,
RemoteGroupID: lbSecGroupID,
}
secGroupRules, err := getSecurityGroupRules(lbaas.network, opts)
if err != nil && !isNotFound(err) {
glog.Errorf("Error finding rules for remote group id %s in security group id %s", lbSecGroupID, lbaas.opts.NodeSecurityGroupID)
return err
}
for _, rule := range secGroupRules {
res := rules.Delete(lbaas.network, rule.ID)
if res.Err != nil && !isNotFound(res.Err) {
glog.V(1).Infof("Error occurred deleting security group rule: %s: %v", rule.ID, res.Err)
}
}
}
return nil
}
func (lbaas *LbaasV2) EnsureLoadBalancerDeleted(service *api.Service) error {
loadBalancerName := cloudprovider.GetLoadBalancerName(service)
glog.V(4).Infof("EnsureLoadBalancerDeleted(%v)", loadBalancerName)
loadbalancer, err := getLoadbalancerByName(lbaas.network, loadBalancerName)
if err != nil && err != ErrNotFound {
return err
}
if loadbalancer == nil {
return nil
}
if lbaas.opts.FloatingNetworkId != "" && loadbalancer != nil {
portID, err := getPortIDByIP(lbaas.network, loadbalancer.VipAddress)
if err != nil {
return err
}
floatingIP, err := getFloatingIPByPortID(lbaas.network, portID)
if err != nil && err != ErrNotFound {
return err
}
if floatingIP != nil {
err = floatingips.Delete(lbaas.network, floatingIP.ID).ExtractErr()
if err != nil && !isNotFound(err) {
return err
}
}
}
// get all listeners associated with this loadbalancer
var listenerIDs []string
err = listeners.List(lbaas.network, listeners.ListOpts{LoadbalancerID: loadbalancer.ID}).EachPage(func(page pagination.Page) (bool, error) {
listenerList, err := listeners.ExtractListeners(page)
if err != nil {
return false, err
}
for _, listener := range listenerList {
listenerIDs = append(listenerIDs, listener.ID)
}
return true, nil
})
if err != nil {
return err
}
// get all pools associated with this loadbalancer
var poolIDs []string
err = v2_pools.List(lbaas.network, v2_pools.ListOpts{LoadbalancerID: loadbalancer.ID}).EachPage(func(page pagination.Page) (bool, error) {
poolsList, err := v2_pools.ExtractPools(page)
if err != nil {
return false, err
}
for _, pool := range poolsList {
poolIDs = append(poolIDs, pool.ID)
}
return true, nil
})
if err != nil {
return err
}
// get all members associated with each poolIDs
var memberIDs []string
for _, poolID := range poolIDs {
err := v2_pools.ListAssociateMembers(lbaas.network, poolID, v2_pools.MemberListOpts{}).EachPage(func(page pagination.Page) (bool, error) {
membersList, err := v2_pools.ExtractMembers(page)
if err != nil {
return false, err
}
for _, member := range membersList {
memberIDs = append(memberIDs, member.ID)
}
return true, nil
})
if err != nil {
return err
}
}
// get all monitors associated with each poolIDs
var monitorIDs []string
for _, poolID := range poolIDs {
err = v2_monitors.List(lbaas.network, v2_monitors.ListOpts{PoolID: poolID}).EachPage(func(page pagination.Page) (bool, error) {
monitorsList, err := v2_monitors.ExtractMonitors(page)
if err != nil {
return false, err
}
for _, monitor := range monitorsList {
monitorIDs = append(monitorIDs, monitor.ID)
}
return true, nil
})
if err != nil {
return err
}
}
// delete all monitors
for _, monitorID := range monitorIDs {
err := v2_monitors.Delete(lbaas.network, monitorID).ExtractErr()
if err != nil && !isNotFound(err) {
return err
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
// delete all members and pools
for _, poolID := range poolIDs {
// delete all members for this pool
for _, memberID := range memberIDs {
err := v2_pools.DeleteMember(lbaas.network, poolID, memberID).ExtractErr()
if err != nil && !isNotFound(err) {
return err
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
// delete pool
err := v2_pools.Delete(lbaas.network, poolID).ExtractErr()
if err != nil && !isNotFound(err) {
return err
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
// delete all listeners
for _, listenerID := range listenerIDs {
err := listeners.Delete(lbaas.network, listenerID).ExtractErr()
if err != nil && !isNotFound(err) {
return err
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
// delete loadbalancer
err = loadbalancers.Delete(lbaas.network, loadbalancer.ID).ExtractErr()
if err != nil && !isNotFound(err) {
return err
}
waitLoadbalancerDeleted(lbaas.network, loadbalancer.ID)
return nil
}
func (lbaas *LbaasV2) UpdateLoadBalancer(service *api.Service, hosts []string) error {
loadBalancerName := cloudprovider.GetLoadBalancerName(service)
glog.V(4).Infof("UpdateLoadBalancer(%v, %v)", loadBalancerName, hosts)
ports := service.Spec.Ports
if len(ports) > 1 {
return fmt.Errorf("multiple ports are not yet supported in openstack load balancers")
} else if len(ports) == 0 {
return fmt.Errorf("no ports provided to openstack load balancer")
}
loadbalancer, err := getLoadbalancerByName(lbaas.network, loadBalancerName)
if err != nil {
return err
}
if loadbalancer == nil {
return fmt.Errorf("Loadbalancer %s does not exist", loadBalancerName)
}
// Set of member (addresses) that _should_ exist
addrs := map[string]bool{}
for _, host := range hosts {
addr, err := getAddressByName(lbaas.compute, host)
if err != nil {
return err
}
addrs[addr] = true
}
// Iterate over members in each pool that _do_ exist
var poolID string
err = v2_pools.List(lbaas.network, v2_pools.ListOpts{LoadbalancerID: loadbalancer.ID}).EachPage(func(page pagination.Page) (bool, error) {
poolsList, err := v2_pools.ExtractPools(page)
if err != nil {
return false, err
}
for _, pool := range poolsList {
poolID = pool.ID
err := v2_pools.ListAssociateMembers(lbaas.network, poolID, v2_pools.MemberListOpts{}).EachPage(func(page pagination.Page) (bool, error) {
membersList, err := v2_pools.ExtractMembers(page)
if err != nil {
return false, err
}
for _, member := range membersList {
if _, found := addrs[member.Address]; found {
// Member already exists, remove from update list
delete(addrs, member.Address)
} else {
// Member needs to be deleted
err = v2_pools.DeleteMember(lbaas.network, poolID, member.ID).ExtractErr()
if err != nil {
return false, err
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
}
return true, nil
})
if err != nil {
return false, err
}
}
return true, nil
})
if err != nil {
return err
}
// Anything left in addrs is a new member that needs to be added to a pool
for addr := range addrs {
_, err := v2_pools.CreateAssociateMember(lbaas.network, poolID, v2_pools.MemberCreateOpts{
Address: addr,
ProtocolPort: int(ports[0].NodePort),
SubnetID: lbaas.opts.SubnetId,
}).Extract()
if err != nil {
return err
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
return nil
}