func resourceMemberV2Create(d *schema.ResourceData, meta interface{}) error {
config := meta.(*Config)
networkingClient, err := config.networkingV2Client(d.Get("region").(string))
if err != nil {
return fmt.Errorf("Error creating OpenStack networking client: %s", err)
}
subnetID := d.Get("subnet_id").(string)
adminStateUp := d.Get("admin_state_up").(bool)
createOpts := pools.MemberCreateOpts{
Name: d.Get("name").(string),
TenantID: d.Get("tenant_id").(string),
Address: d.Get("address").(string),
ProtocolPort: d.Get("protocol_port").(int),
Weight: d.Get("weight").(int),
AdminStateUp: &adminStateUp,
}
// Must omit if not set
if subnetID != "" {
createOpts.SubnetID = subnetID
}
poolID := d.Get("pool_id").(string)
log.Printf("[DEBUG] Create Options: %#v", createOpts)
member, err := pools.CreateAssociateMember(networkingClient, poolID, createOpts).ExtractMember()
if err != nil {
return fmt.Errorf("Error creating OpenStack LBaaSV2 member: %s", err)
}
log.Printf("[INFO] member ID: %s", member.ID)
log.Printf("[DEBUG] Waiting for Openstack LBaaSV2 member (%s) to become available.", member.ID)
stateConf := &resource.StateChangeConf{
Pending: []string{"PENDING_CREATE"},
Target: []string{"ACTIVE"},
Refresh: waitForMemberActive(networkingClient, poolID, member.ID),
Timeout: 2 * time.Minute,
Delay: 5 * time.Second,
MinTimeout: 3 * time.Second,
}
_, err = stateConf.WaitForState()
if err != nil {
return err
}
d.SetId(member.ID)
return resourceMemberV2Read(d, meta)
}
func createMember(t *testing.T, subnetID string, poolID string, address string, protocolPort int, weight int) string {
m, err := pools.CreateAssociateMember(base.Client, poolID, pools.MemberCreateOpts{
SubnetID: subnetID,
Address: address,
ProtocolPort: protocolPort,
Weight: weight,
Name: "tmp_member",
}).ExtractMember()
th.AssertNoErr(t, err)
t.Logf("Created Member, ID %s", m.ID)
return m.ID
}
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) EnsureLoadBalancer(clusterName string, apiService *v1.Service, nodeNames []string) (*v1.LoadBalancerStatus, error) {
glog.V(4).Infof("EnsureLoadBalancer(%v, %v, %v, %v, %v, %v, %v)", clusterName, apiService.Namespace, apiService.Name, apiService.Spec.LoadBalancerIP, apiService.Spec.Ports, nodeNames, apiService.Annotations)
ports := apiService.Spec.Ports
if len(ports) == 0 {
return nil, fmt.Errorf("no ports provided to openstack load balancer")
}
// Check for TCP protocol on each port
// TODO: Convert all error messages to use an event recorder
for _, port := range ports {
if port.Protocol != v1.ProtocolTCP {
return nil, fmt.Errorf("Only TCP LoadBalancer is supported for openstack load balancers")
}
}
sourceRanges, err := service.GetLoadBalancerSourceRanges(apiService)
if err != nil {
return nil, err
}
if !service.IsAllowAll(sourceRanges) && !lbaas.opts.ManageSecurityGroups {
return nil, fmt.Errorf("Source range restrictions are not supported for openstack load balancers without managing security groups")
}
affinity := v1.ServiceAffinityNone
var persistence *v2pools.SessionPersistence
switch affinity {
case v1.ServiceAffinityNone:
persistence = nil
case v1.ServiceAffinityClientIP:
persistence = &v2pools.SessionPersistence{Type: "SOURCE_IP"}
default:
return nil, fmt.Errorf("unsupported load balancer affinity: %v", affinity)
}
name := cloudprovider.GetLoadBalancerName(apiService)
loadbalancer, err := getLoadbalancerByName(lbaas.network, name)
if err != nil {
if err != ErrNotFound {
return nil, fmt.Errorf("Error getting loadbalancer %s: %v", name, err)
}
glog.V(2).Infof("Creating loadbalancer %s", name)
loadbalancer, err = lbaas.createLoadBalancer(apiService, name)
if err != nil {
// Unknown error, retry later
return nil, fmt.Errorf("Error creating loadbalancer %s: %v", name, err)
}
} else {
glog.V(2).Infof("LoadBalancer %s already exists", name)
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
lbmethod := v2pools.LBMethod(lbaas.opts.LBMethod)
if lbmethod == "" {
lbmethod = v2pools.LBMethodRoundRobin
}
oldListeners, err := getListenersByLoadBalancerID(lbaas.network, loadbalancer.ID)
if err != nil {
return nil, fmt.Errorf("Error getting LB %s listeners: %v", name, err)
}
for portIndex, port := range ports {
listener := getListenerForPort(oldListeners, port)
if listener == nil {
glog.V(4).Infof("Creating listener for port %d", int(port.Port))
listener, err = listeners.Create(lbaas.network, listeners.CreateOpts{
Name: fmt.Sprintf("listener_%s_%d", name, portIndex),
Protocol: listeners.Protocol(port.Protocol),
ProtocolPort: int(port.Port),
LoadbalancerID: loadbalancer.ID,
}).Extract()
if err != nil {
// Unknown error, retry later
return nil, fmt.Errorf("Error creating LB listener: %v", err)
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
glog.V(4).Infof("Listener for %s port %d: %s", string(port.Protocol), int(port.Port), listener.ID)
// After all ports have been processed, remaining listeners are removed as obsolete.
// Pop valid listeners.
oldListeners = popListener(oldListeners, listener.ID)
pool, err := getPoolByListenerID(lbaas.network, loadbalancer.ID, listener.ID)
if err != nil && err != ErrNotFound {
// Unknown error, retry later
return nil, fmt.Errorf("Error getting pool for listener %s: %v", listener.ID, err)
}
if pool == nil {
glog.V(4).Infof("Creating pool for listener %s", listener.ID)
pool, err = v2pools.Create(lbaas.network, v2pools.CreateOpts{
Name: fmt.Sprintf("pool_%s_%d", name, portIndex),
Protocol: v2pools.Protocol(port.Protocol),
LBMethod: lbmethod,
ListenerID: listener.ID,
Persistence: persistence,
}).Extract()
if err != nil {
// Unknown error, retry later
return nil, fmt.Errorf("Error creating pool for listener %s: %v", listener.ID, err)
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
glog.V(4).Infof("Pool for listener %s: %s", listener.ID, pool.ID)
members, err := getMembersByPoolID(lbaas.network, pool.ID)
if err != nil && !isNotFound(err) {
return nil, fmt.Errorf("Error getting pool members %s: %v", pool.ID, err)
}
for _, nodeName := range nodeNames {
addr, err := getAddressByName(lbaas.compute, types.NodeName(nodeName))
if err != nil {
if err == ErrNotFound {
// Node failure, do not create member
glog.Warningf("Failed to create LB pool member for node %s: %v", nodeName, err)
continue
} else {
return nil, fmt.Errorf("Error getting address for node %s: %v", nodeName, err)
}
}
if !memberExists(members, addr, int(port.NodePort)) {
glog.V(4).Infof("Creating member for pool %s", pool.ID)
_, err := v2pools.CreateAssociateMember(lbaas.network, pool.ID, v2pools.MemberCreateOpts{
ProtocolPort: int(port.NodePort),
Address: addr,
SubnetID: lbaas.opts.SubnetId,
}).Extract()
if err != nil {
return nil, fmt.Errorf("Error creating LB pool member for node: %s, %v", nodeName, err)
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
} else {
// After all members have been processed, remaining members are deleted as obsolete.
members = popMember(members, addr, int(port.NodePort))
}
glog.V(4).Infof("Ensured pool %s has member for %s at %s", pool.ID, nodeName, addr)
}
// Delete obsolete members for this pool
for _, member := range members {
glog.V(4).Infof("Deleting obsolete member %s for pool %s address %s", member.ID, pool.ID, member.Address)
err := v2pools.DeleteMember(lbaas.network, pool.ID, member.ID).ExtractErr()
if err != nil && !isNotFound(err) {
return nil, fmt.Errorf("Error deleting obsolete member %s for pool %s address %s: %v", member.ID, pool.ID, member.Address, err)
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
monitorID := pool.MonitorID
if monitorID == "" && lbaas.opts.CreateMonitor {
glog.V(4).Infof("Creating monitor for pool %s", pool.ID)
monitor, err := v2monitors.Create(lbaas.network, v2monitors.CreateOpts{
PoolID: pool.ID,
Type: string(port.Protocol),
Delay: int(lbaas.opts.MonitorDelay.Duration.Seconds()),
Timeout: int(lbaas.opts.MonitorTimeout.Duration.Seconds()),
MaxRetries: int(lbaas.opts.MonitorMaxRetries),
}).Extract()
if err != nil {
return nil, fmt.Errorf("Error creating LB pool healthmonitor: %v", err)
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
monitorID = monitor.ID
}
glog.V(4).Infof("Monitor for pool %s: %s", pool.ID, monitorID)
}
// All remaining listeners are obsolete, delete
for _, listener := range oldListeners {
glog.V(4).Infof("Deleting obsolete listener %s:", listener.ID)
// get pool for listener
pool, err := getPoolByListenerID(lbaas.network, loadbalancer.ID, listener.ID)
if err != nil && err != ErrNotFound {
return nil, fmt.Errorf("Error getting pool for obsolete listener %s: %v", listener.ID, err)
}
if pool != nil {
// get and delete monitor
monitorID := pool.MonitorID
if monitorID != "" {
glog.V(4).Infof("Deleting obsolete monitor %s for pool %s", monitorID, pool.ID)
err = v2monitors.Delete(lbaas.network, monitorID).ExtractErr()
if err != nil && !isNotFound(err) {
return nil, fmt.Errorf("Error deleting obsolete monitor %s for pool %s: %v", monitorID, pool.ID, err)
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
// get and delete pool members
members, err := getMembersByPoolID(lbaas.network, pool.ID)
if err != nil && !isNotFound(err) {
return nil, fmt.Errorf("Error getting members for pool %s: %v", pool.ID, err)
}
if members != nil {
for _, member := range members {
glog.V(4).Infof("Deleting obsolete member %s for pool %s address %s", member.ID, pool.ID, member.Address)
err := v2pools.DeleteMember(lbaas.network, pool.ID, member.ID).ExtractErr()
if err != nil && !isNotFound(err) {
return nil, fmt.Errorf("Error deleting obsolete member %s for pool %s address %s: %v", member.ID, pool.ID, member.Address, err)
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
}
glog.V(4).Infof("Deleting obsolete pool %s for listener %s", pool.ID, listener.ID)
// delete pool
err = v2pools.Delete(lbaas.network, pool.ID).ExtractErr()
if err != nil && !isNotFound(err) {
return nil, fmt.Errorf("Error deleting obsolete pool %s for listener %s: %v", pool.ID, listener.ID, err)
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
// delete listener
err = listeners.Delete(lbaas.network, listener.ID).ExtractErr()
if err != nil && !isNotFound(err) {
return nil, fmt.Errorf("Error deleteting obsolete listener: %v", err)
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
glog.V(2).Infof("Deleted obsolete listener: %s", listener.ID)
}
status := &v1.LoadBalancerStatus{}
status.Ingress = []v1.LoadBalancerIngress{{IP: loadbalancer.VipAddress}}
port, err := getPortByIP(lbaas.network, loadbalancer.VipAddress)
if err != nil {
return nil, fmt.Errorf("Error getting port for LB vip %s: %v", loadbalancer.VipAddress, err)
}
floatIP, err := getFloatingIPByPortID(lbaas.network, port.ID)
if err != nil && err != ErrNotFound {
return nil, fmt.Errorf("Error getting floating ip for port %s: %v", port.ID, err)
}
if floatIP == nil && lbaas.opts.FloatingNetworkId != "" {
glog.V(4).Infof("Creating floating ip for loadbalancer %s port %s", loadbalancer.ID, port.ID)
floatIPOpts := floatingips.CreateOpts{
FloatingNetworkID: lbaas.opts.FloatingNetworkId,
PortID: port.ID,
}
floatIP, err = floatingips.Create(lbaas.network, floatIPOpts).Extract()
if err != nil {
return nil, fmt.Errorf("Error creating LB floatingip %+v: %v", floatIPOpts, err)
}
}
if floatIP != nil {
status.Ingress = append(status.Ingress, v1.LoadBalancerIngress{IP: floatIP.FloatingIP})
}
if lbaas.opts.ManageSecurityGroups {
lbSecGroupCreateOpts := groups.CreateOpts{
Name: getSecurityGroupName(clusterName, apiService),
Description: fmt.Sprintf("Securty Group for %v Service LoadBalancer", apiService.Name),
}
lbSecGroup, err := groups.Create(lbaas.network, lbSecGroupCreateOpts).Extract()
if err != nil {
// cleanup what was created so far
_ = lbaas.EnsureLoadBalancerDeleted(clusterName, apiService)
return nil, err
}
for _, port := range ports {
for _, sourceRange := range sourceRanges.StringSlice() {
ethertype := "IPv4"
network, _, err := net.ParseCIDR(sourceRange)
if err != nil {
// cleanup what was created so far
glog.Errorf("Error parsing source range %s as a CIDR", sourceRange)
_ = lbaas.EnsureLoadBalancerDeleted(clusterName, apiService)
return nil, err
}
if network.To4() == nil {
ethertype = "IPv6"
}
lbSecGroupRuleCreateOpts := rules.CreateOpts{
Direction: "ingress",
PortRangeMax: int(port.Port),
PortRangeMin: int(port.Port),
Protocol: strings.ToLower(string(port.Protocol)),
RemoteIPPrefix: sourceRange,
SecGroupID: lbSecGroup.ID,
EtherType: ethertype,
}
_, err = rules.Create(lbaas.network, lbSecGroupRuleCreateOpts).Extract()
if err != nil {
// cleanup what was created so far
_ = lbaas.EnsureLoadBalancerDeleted(clusterName, apiService)
return nil, err
}
}
err := createNodeSecurityGroup(lbaas.network, lbaas.opts.NodeSecurityGroupID, int(port.NodePort), string(port.Protocol), lbSecGroup.ID)
if err != nil {
glog.Errorf("Error occured creating security group for loadbalancer %s:", loadbalancer.ID)
_ = lbaas.EnsureLoadBalancerDeleted(clusterName, apiService)
return nil, err
}
}
lbSecGroupRuleCreateOpts := rules.CreateOpts{
Direction: "ingress",
PortRangeMax: 4, // ICMP: Code - Values for ICMP "Destination Unreachable: Fragmentation Needed and Don't Fragment was Set"
PortRangeMin: 3, // ICMP: Type
Protocol: "icmp",
RemoteIPPrefix: "0.0.0.0/0", // The Fragmentation packet can come from anywhere along the path back to the sourceRange - we need to all this from all
SecGroupID: lbSecGroup.ID,
EtherType: "IPv4",
}
_, err = rules.Create(lbaas.network, lbSecGroupRuleCreateOpts).Extract()
if err != nil {
// cleanup what was created so far
_ = lbaas.EnsureLoadBalancerDeleted(clusterName, apiService)
return nil, err
}
lbSecGroupRuleCreateOpts = rules.CreateOpts{
Direction: "ingress",
PortRangeMax: 0, // ICMP: Code - Values for ICMP "Packet Too Big"
PortRangeMin: 2, // ICMP: Type
Protocol: "icmp",
RemoteIPPrefix: "::/0", // The Fragmentation packet can come from anywhere along the path back to the sourceRange - we need to all this from all
SecGroupID: lbSecGroup.ID,
EtherType: "IPv6",
}
_, err = rules.Create(lbaas.network, lbSecGroupRuleCreateOpts).Extract()
if err != nil {
// cleanup what was created so far
_ = lbaas.EnsureLoadBalancerDeleted(clusterName, apiService)
return nil, err
}
// Get the port ID
port, err := getPortByIP(lbaas.network, loadbalancer.VipAddress)
if err != nil {
// cleanup what was created so far
_ = lbaas.EnsureLoadBalancerDeleted(clusterName, apiService)
return nil, err
}
update_opts := neutronports.UpdateOpts{SecurityGroups: []string{lbSecGroup.ID}}
res := neutronports.Update(lbaas.network, port.ID, update_opts)
if res.Err != nil {
glog.Errorf("Error occured updating port: %s", port.ID)
// cleanup what was created so far
_ = lbaas.EnsureLoadBalancerDeleted(clusterName, apiService)
return nil, res.Err
}
}
return status, 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
}
func (lbaas *LbaasV2) EnsureLoadBalancer(apiService *api.Service, hosts []string) (*api.LoadBalancerStatus, error) {
glog.V(4).Infof("EnsureLoadBalancer(%v, %v, %v, %v, %v, %v)", apiService.Namespace, apiService.Name, apiService.Spec.LoadBalancerIP, apiService.Spec.Ports, hosts, apiService.Annotations)
ports := apiService.Spec.Ports
if len(ports) > 1 {
return nil, fmt.Errorf("multiple ports are not yet supported in openstack load balancers")
} else if len(ports) == 0 {
return nil, fmt.Errorf("no ports provided to openstack load balancer")
}
// The service controller verified all the protocols match on the ports, just check and use the first one
// TODO: Convert all error messages to use an event recorder
if ports[0].Protocol != api.ProtocolTCP {
return nil, fmt.Errorf("Only TCP LoadBalancer is supported for openstack load balancers")
}
affinity := api.ServiceAffinityNone //apiService.Spec.SessionAffinity
var persistence *v2_pools.SessionPersistence
switch affinity {
case api.ServiceAffinityNone:
persistence = nil
case api.ServiceAffinityClientIP:
persistence = &v2_pools.SessionPersistence{Type: "SOURCE_IP"}
default:
return nil, fmt.Errorf("unsupported load balancer affinity: %v", affinity)
}
sourceRanges, err := service.GetLoadBalancerSourceRanges(apiService)
if err != nil {
return nil, err
}
if !service.IsAllowAll(sourceRanges) {
return nil, fmt.Errorf("Source range restrictions are not supported for openstack load balancers")
}
glog.V(2).Infof("Checking if openstack load balancer already exists: %s", cloudprovider.GetLoadBalancerName(apiService))
_, exists, err := lbaas.GetLoadBalancer(apiService)
if err != nil {
return nil, fmt.Errorf("error checking if openstack load balancer already exists: %v", err)
}
// TODO: Implement a more efficient update strategy for common changes than delete & create
// In particular, if we implement hosts update, we can get rid of UpdateHosts
if exists {
err := lbaas.EnsureLoadBalancerDeleted(apiService)
if err != nil {
return nil, fmt.Errorf("error deleting existing openstack load balancer: %v", err)
}
}
lbmethod := v2_pools.LBMethod(lbaas.opts.LBMethod)
if lbmethod == "" {
lbmethod = v2_pools.LBMethodRoundRobin
}
name := cloudprovider.GetLoadBalancerName(apiService)
createOpts := loadbalancers.CreateOpts{
Name: name,
Description: fmt.Sprintf("Kubernetes external service %s", name),
VipSubnetID: lbaas.opts.SubnetId,
}
loadBalancerIP := apiService.Spec.LoadBalancerIP
if loadBalancerIP != "" {
createOpts.VipAddress = loadBalancerIP
}
loadbalancer, err := loadbalancers.Create(lbaas.network, createOpts).Extract()
if err != nil {
// cleanup what was created so far
_ = lbaas.EnsureLoadBalancerDeleted(apiService)
return nil, err
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
listener, err := listeners.Create(lbaas.network, listeners.CreateOpts{
Name: name,
Protocol: listeners.ProtocolTCP,
ProtocolPort: (int)(ports[0].Port), //TODO: need to handle multi-port
LoadbalancerID: loadbalancer.ID,
}).Extract()
if err != nil {
// cleanup what was created so far
_ = lbaas.EnsureLoadBalancerDeleted(apiService)
return nil, err
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
pool, err := v2_pools.Create(lbaas.network, v2_pools.CreateOpts{
Name: name,
Protocol: v2_pools.ProtocolTCP,
LBMethod: lbmethod,
ListenerID: listener.ID,
Persistence: persistence,
}).Extract()
if err != nil {
// cleanup what was created so far
_ = lbaas.EnsureLoadBalancerDeleted(apiService)
return nil, err
}
for _, host := range hosts {
addr, err := getAddressByName(lbaas.compute, host)
if err != nil {
return nil, err
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
_, err = v2_pools.CreateAssociateMember(lbaas.network, pool.ID, v2_pools.MemberCreateOpts{
ProtocolPort: int(ports[0].NodePort), //TODO: need to handle multi-port
Address: addr,
SubnetID: lbaas.opts.SubnetId,
}).Extract()
if err != nil {
// cleanup what was created so far
_ = lbaas.EnsureLoadBalancerDeleted(apiService)
return nil, err
}
}
if lbaas.opts.CreateMonitor {
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
_, err = v2_monitors.Create(lbaas.network, v2_monitors.CreateOpts{
PoolID: pool.ID,
Type: monitors.TypeTCP,
Delay: int(lbaas.opts.MonitorDelay.Duration.Seconds()),
Timeout: int(lbaas.opts.MonitorTimeout.Duration.Seconds()),
MaxRetries: int(lbaas.opts.MonitorMaxRetries),
}).Extract()
if err != nil {
// cleanup what was created so far
_ = lbaas.EnsureLoadBalancerDeleted(apiService)
return nil, err
}
}
status := &api.LoadBalancerStatus{}
status.Ingress = []api.LoadBalancerIngress{{IP: loadbalancer.VipAddress}}
if lbaas.opts.FloatingNetworkId != "" {
portID, err := getPortIDByIP(lbaas.network, loadbalancer.VipAddress)
if err != nil {
// cleanup what was created so far
_ = lbaas.EnsureLoadBalancerDeleted(apiService)
return nil, err
}
floatIPOpts := floatingips.CreateOpts{
FloatingNetworkID: lbaas.opts.FloatingNetworkId,
PortID: portID,
}
floatIP, err := floatingips.Create(lbaas.network, floatIPOpts).Extract()
if err != nil {
// cleanup what was created so far
_ = lbaas.EnsureLoadBalancerDeleted(apiService)
return nil, err
}
status.Ingress = append(status.Ingress, api.LoadBalancerIngress{IP: floatIP.FloatingIP})
}
return status, nil
}
func (lbaas *LbaasV2) EnsureLoadBalancer(clusterName string, apiService *api.Service, nodeNames []string) (*api.LoadBalancerStatus, error) {
glog.V(4).Infof("EnsureLoadBalancer(%v, %v, %v, %v, %v, %v, %v)", clusterName, apiService.Namespace, apiService.Name, apiService.Spec.LoadBalancerIP, apiService.Spec.Ports, nodeNames, apiService.Annotations)
ports := apiService.Spec.Ports
if len(ports) == 0 {
return nil, fmt.Errorf("no ports provided to openstack load balancer")
}
// Check for TCP protocol on each port
// TODO: Convert all error messages to use an event recorder
for _, port := range ports {
if port.Protocol != api.ProtocolTCP {
return nil, fmt.Errorf("Only TCP LoadBalancer is supported for openstack load balancers")
}
}
affinity := api.ServiceAffinityNone //apiService.Spec.SessionAffinity
var persistence *v2_pools.SessionPersistence
switch affinity {
case api.ServiceAffinityNone:
persistence = nil
case api.ServiceAffinityClientIP:
persistence = &v2_pools.SessionPersistence{Type: "SOURCE_IP"}
default:
return nil, fmt.Errorf("unsupported load balancer affinity: %v", affinity)
}
sourceRanges, err := service.GetLoadBalancerSourceRanges(apiService)
if err != nil {
return nil, err
}
if !service.IsAllowAll(sourceRanges) {
return nil, fmt.Errorf("Source range restrictions are not supported for openstack load balancers")
}
name := cloudprovider.GetLoadBalancerName(apiService)
loadbalancer, err := getLoadbalancerByName(lbaas.network, name)
if err != nil {
if err != ErrNotFound {
return nil, fmt.Errorf("Error getting loadbalancer %s: %v", name, err)
}
glog.V(2).Infof("Creating loadbalancer %s", name)
loadbalancer, err = lbaas.createLoadBalancer(apiService, name)
if err != nil {
// Unknown error, retry later
return nil, fmt.Errorf("Error creating loadbalancer %s: %v", name, err)
}
} else {
glog.V(2).Infof("LoadBalancer %s already exists", name)
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
lbmethod := v2_pools.LBMethod(lbaas.opts.LBMethod)
if lbmethod == "" {
lbmethod = v2_pools.LBMethodRoundRobin
}
oldListeners, err := getListenersByLoadBalancerID(lbaas.network, loadbalancer.ID)
if err != nil {
return nil, fmt.Errorf("Error getting LB %s listeners: %v", name, err)
}
for portIndex, port := range ports {
listener := getListenerForPort(oldListeners, port)
if listener == nil {
glog.V(4).Infof("Creating listener for port %d", int(port.Port))
listener, err = listeners.Create(lbaas.network, listeners.CreateOpts{
Name: fmt.Sprintf("listener_%s_%d", name, portIndex),
Protocol: listeners.Protocol(port.Protocol),
ProtocolPort: int(port.Port),
LoadbalancerID: loadbalancer.ID,
}).Extract()
if err != nil {
// Unknown error, retry later
return nil, fmt.Errorf("Error creating LB listener: %v", err)
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
glog.V(4).Infof("Listener for %s port %d: %s", string(port.Protocol), int(port.Port), listener.ID)
// After all ports have been processed, remaining listeners are removed as obsolete.
// Pop valid listeners.
oldListeners = popListener(oldListeners, listener.ID)
pool, err := getPoolByListenerID(lbaas.network, loadbalancer.ID, listener.ID)
if err != nil && err != ErrNotFound {
// Unknown error, retry later
return nil, fmt.Errorf("Error getting pool for listener %s: %v", listener.ID, err)
}
if pool == nil {
glog.V(4).Infof("Creating pool for listener %s", listener.ID)
pool, err = v2_pools.Create(lbaas.network, v2_pools.CreateOpts{
Name: fmt.Sprintf("pool_%s_%d", name, portIndex),
Protocol: v2_pools.Protocol(port.Protocol),
LBMethod: lbmethod,
ListenerID: listener.ID,
Persistence: persistence,
}).Extract()
if err != nil {
// Unknown error, retry later
return nil, fmt.Errorf("Error creating pool for listener %s: %v", listener.ID, err)
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
glog.V(4).Infof("Pool for listener %s: %s", listener.ID, pool.ID)
members, err := getMembersByPoolID(lbaas.network, pool.ID)
if err != nil && !isNotFound(err) {
return nil, fmt.Errorf("Error getting pool members %s: %v", pool.ID, err)
}
for _, nodeName := range nodeNames {
addr, err := getAddressByName(lbaas.compute, types.NodeName(nodeName))
if err != nil {
if err == ErrNotFound {
// Node failure, do not create member
glog.Warningf("Failed to create LB pool member for node %s: %v", nodeName, err)
continue
} else {
return nil, fmt.Errorf("Error getting address for node %s: %v", nodeName, err)
}
}
if !memberExists(members, addr) {
glog.V(4).Infof("Creating member for pool %s", pool.ID)
_, err := v2_pools.CreateAssociateMember(lbaas.network, pool.ID, v2_pools.MemberCreateOpts{
ProtocolPort: int(port.NodePort),
Address: addr,
SubnetID: lbaas.opts.SubnetId,
}).Extract()
if err != nil {
return nil, fmt.Errorf("Error creating LB pool member for node: %s, %v", nodeName, err)
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
// After all members have been processed, remaining members are deleted as obsolete.
members = popMember(members, addr)
glog.V(4).Infof("Ensured pool %s has member for %s at %s", pool.ID, nodeName, addr)
}
// Delete obsolete members for this pool
for _, member := range members {
glog.V(4).Infof("Deleting obsolete member %s for pool %s address %s", member.ID, pool.ID, member.Address)
err := v2_pools.DeleteMember(lbaas.network, pool.ID, member.ID).ExtractErr()
if err != nil && !isNotFound(err) {
return nil, fmt.Errorf("Error deleting obsolete member %s for pool %s address %s: %v", member.ID, pool.ID, member.Address, err)
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
monitorID := pool.MonitorID
if monitorID == "" && lbaas.opts.CreateMonitor {
glog.V(4).Infof("Creating monitor for pool %s", pool.ID)
monitor, err := v2_monitors.Create(lbaas.network, v2_monitors.CreateOpts{
PoolID: pool.ID,
Type: string(port.Protocol),
Delay: int(lbaas.opts.MonitorDelay.Duration.Seconds()),
Timeout: int(lbaas.opts.MonitorTimeout.Duration.Seconds()),
MaxRetries: int(lbaas.opts.MonitorMaxRetries),
}).Extract()
if err != nil {
return nil, fmt.Errorf("Error creating LB pool healthmonitor: %v", err)
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
monitorID = monitor.ID
}
glog.V(4).Infof("Monitor for pool %s: %s", pool.ID, monitorID)
}
// All remaining listeners are obsolete, delete
for _, listener := range oldListeners {
glog.V(4).Infof("Deleting obsolete listener %s:", listener.ID)
// get pool for listener
pool, err := getPoolByListenerID(lbaas.network, loadbalancer.ID, listener.ID)
if err != nil && err != ErrNotFound {
return nil, fmt.Errorf("Error getting pool for obsolete listener %s: %v", listener.ID, err)
}
if pool != nil {
// get and delete monitor
monitorID := pool.MonitorID
if monitorID != "" {
glog.V(4).Infof("Deleting obsolete monitor %s for pool %s", monitorID, pool.ID)
err = v2_monitors.Delete(lbaas.network, monitorID).ExtractErr()
if err != nil && !isNotFound(err) {
return nil, fmt.Errorf("Error deleting obsolete monitor %s for pool %s: %v", monitorID, pool.ID, err)
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
// get and delete pool members
members, err := getMembersByPoolID(lbaas.network, pool.ID)
if err != nil && !isNotFound(err) {
return nil, fmt.Errorf("Error getting members for pool %s: %v", pool.ID, err)
}
if members != nil {
for _, member := range members {
glog.V(4).Infof("Deleting obsolete member %s for pool %s address %s", member.ID, pool.ID, member.Address)
err := v2_pools.DeleteMember(lbaas.network, pool.ID, member.ID).ExtractErr()
if err != nil && !isNotFound(err) {
return nil, fmt.Errorf("Error deleting obsolete member %s for pool %s address %s: %v", member.ID, pool.ID, member.Address, err)
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
}
glog.V(4).Infof("Deleting obsolete pool %s for listener %s", pool.ID, listener.ID)
// delete pool
err = v2_pools.Delete(lbaas.network, pool.ID).ExtractErr()
if err != nil && !isNotFound(err) {
return nil, fmt.Errorf("Error deleting obsolete pool %s for listener %s: %v", pool.ID, listener.ID, err)
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
}
// delete listener
err = listeners.Delete(lbaas.network, listener.ID).ExtractErr()
if err != nil && !isNotFound(err) {
return nil, fmt.Errorf("Error deleteting obsolete listener: %v", err)
}
waitLoadbalancerActiveProvisioningStatus(lbaas.network, loadbalancer.ID)
glog.V(2).Infof("Deleted obsolete listener: %s", listener.ID)
}
status := &api.LoadBalancerStatus{}
status.Ingress = []api.LoadBalancerIngress{{IP: loadbalancer.VipAddress}}
portID, err := getPortIDByIP(lbaas.network, loadbalancer.VipAddress)
if err != nil {
return nil, fmt.Errorf("Error getting port for LB vip %s: %v", loadbalancer.VipAddress, err)
}
floatIP, err := getFloatingIPByPortID(lbaas.network, portID)
if err != nil && err != ErrNotFound {
return nil, fmt.Errorf("Error getting floating ip for port %s: %v", portID, err)
}
if floatIP == nil && lbaas.opts.FloatingNetworkId != "" {
glog.V(4).Infof("Creating floating ip for loadbalancer %s port %s", loadbalancer.ID, portID)
floatIPOpts := floatingips.CreateOpts{
FloatingNetworkID: lbaas.opts.FloatingNetworkId,
PortID: portID,
}
floatIP, err = floatingips.Create(lbaas.network, floatIPOpts).Extract()
if err != nil {
return nil, fmt.Errorf("Error creating LB floatingip %+v: %v", floatIPOpts, err)
}
}
status.Ingress = append(status.Ingress, api.LoadBalancerIngress{IP: floatIP.FloatingIP})
return status, nil
}