// Get load balancer by name
func (os *OpenStack) GetLoadBalancer(name string) (*provider.LoadBalancer, error) {
pool, err := os.getPoolByName(name)
if err != nil {
return nil, err
}
vip, err := os.getVipByID(pool.VIPID)
if err != nil {
return nil, err
}
var lb provider.LoadBalancer
lb.Uid = pool.ID
lb.Name = pool.Name
lb.Status = pool.Status
lb.LoadBalanceType = "TCP"
lb.Vip = vip.Address
lb.Subnets = []*provider.Subnet{{Uid: vip.SubnetID}}
lb.Hosts = make([]*provider.HostPort, 0, 1)
pager := members.List(os.network, members.ListOpts{PoolID: pool.ID})
err = pager.EachPage(func(page pagination.Page) (bool, error) {
memList, err := members.ExtractMembers(page)
if err != nil {
return false, err
}
for _, member := range memList {
host := provider.HostPort{
Ipaddress: member.Address,
TargetPort: int32(member.ProtocolPort),
ServicePort: int32(vip.ProtocolPort),
}
lb.Hosts = append(lb.Hosts, &host)
}
return true, nil
})
if err != nil {
return nil, err
}
return &lb, nil
}
func TestMembersList(t *testing.T) {
client, err := clients.NewNetworkV2Client()
if err != nil {
t.Fatalf("Unable to create a network client: %v", err)
}
allPages, err := members.List(client, members.ListOpts{}).AllPages()
if err != nil {
t.Fatalf("Unable to list members: %v", err)
}
allMembers, err := members.ExtractMembers(allPages)
if err != nil {
t.Fatalf("Unable to extract members: %v", err)
}
for _, member := range allMembers {
PrintMember(t, &member)
}
}
func resourceLBPoolV1Update(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)
}
var updateOpts pools.UpdateOpts
// If either option changed, update both.
// Gophercloud complains if one is empty.
if d.HasChange("name") || d.HasChange("lb_method") {
updateOpts.Name = d.Get("name").(string)
lbMethod := resourceLBPoolV1DetermineLBMethod(d.Get("lb_method").(string))
updateOpts.LBMethod = lbMethod
}
log.Printf("[DEBUG] Updating OpenStack LB Pool %s with options: %+v", d.Id(), updateOpts)
_, err = pools.Update(networkingClient, d.Id(), updateOpts).Extract()
if err != nil {
return fmt.Errorf("Error updating OpenStack LB Pool: %s", err)
}
if d.HasChange("monitor_ids") {
oldMIDsRaw, newMIDsRaw := d.GetChange("security_groups")
oldMIDsSet, newMIDsSet := oldMIDsRaw.(*schema.Set), newMIDsRaw.(*schema.Set)
monitorsToAdd := newMIDsSet.Difference(oldMIDsSet)
monitorsToRemove := oldMIDsSet.Difference(newMIDsSet)
log.Printf("[DEBUG] Monitors to add: %v", monitorsToAdd)
log.Printf("[DEBUG] Monitors to remove: %v", monitorsToRemove)
for _, m := range monitorsToAdd.List() {
_, err := pools.AssociateMonitor(networkingClient, d.Id(), m.(string)).Extract()
if err != nil {
return fmt.Errorf("Error associating monitor (%s) with OpenStack server (%s): %s", m.(string), d.Id(), err)
}
log.Printf("[DEBUG] Associated monitor (%s) with pool (%s)", m.(string), d.Id())
}
for _, m := range monitorsToRemove.List() {
_, err := pools.DisassociateMonitor(networkingClient, d.Id(), m.(string)).Extract()
if err != nil {
return fmt.Errorf("Error disassociating monitor (%s) from OpenStack server (%s): %s", m.(string), d.Id(), err)
}
log.Printf("[DEBUG] Disassociated monitor (%s) from pool (%s)", m.(string), d.Id())
}
}
if d.HasChange("member") {
oldMembersRaw, newMembersRaw := d.GetChange("member")
oldMembersSet, newMembersSet := oldMembersRaw.(*schema.Set), newMembersRaw.(*schema.Set)
membersToAdd := newMembersSet.Difference(oldMembersSet)
membersToRemove := oldMembersSet.Difference(newMembersSet)
log.Printf("[DEBUG] Members to add: %v", membersToAdd)
log.Printf("[DEBUG] Members to remove: %v", membersToRemove)
for _, m := range membersToRemove.List() {
oldMember := resourcePoolMemberV1(d, m)
listOpts := members.ListOpts{
PoolID: d.Id(),
Address: oldMember.Address,
ProtocolPort: oldMember.ProtocolPort,
}
err = members.List(networkingClient, listOpts).EachPage(func(page pagination.Page) (bool, error) {
extractedMembers, err := members.ExtractMembers(page)
if err != nil {
return false, err
}
for _, member := range extractedMembers {
err := members.Delete(networkingClient, member.ID).ExtractErr()
if err != nil {
return false, fmt.Errorf("Error deleting member (%s) from OpenStack LB pool (%s): %s", member.ID, d.Id(), err)
}
log.Printf("[DEBUG] Deleted member (%s) from pool (%s)", member.ID, d.Id())
}
return true, nil
})
}
for _, m := range membersToAdd.List() {
createOpts := resourcePoolMemberV1(d, m)
newMember, err := members.Create(networkingClient, createOpts).Extract()
if err != nil {
return fmt.Errorf("Error creating LB member: %s", err)
}
log.Printf("[DEBUG] Created member (%s) in OpenStack LB pool (%s)", newMember.ID, d.Id())
}
}
return resourceLBPoolV1Read(d, meta)
}
func TestList(t *testing.T) {
th.SetupHTTP()
defer th.TeardownHTTP()
th.Mux.HandleFunc("/v2.0/lb/members", func(w http.ResponseWriter, r *http.Request) {
th.TestMethod(t, r, "GET")
th.TestHeader(t, r, "X-Auth-Token", fake.TokenID)
w.Header().Add("Content-Type", "application/json")
w.WriteHeader(http.StatusOK)
fmt.Fprintf(w, `
{
"members":[
{
"status":"ACTIVE",
"weight":1,
"admin_state_up":true,
"tenant_id":"83657cfcdfe44cd5920adaf26c48ceea",
"pool_id":"72741b06-df4d-4715-b142-276b6bce75ab",
"address":"10.0.0.4",
"protocol_port":80,
"id":"701b531b-111a-4f21-ad85-4795b7b12af6"
},
{
"status":"ACTIVE",
"weight":1,
"admin_state_up":true,
"tenant_id":"83657cfcdfe44cd5920adaf26c48ceea",
"pool_id":"72741b06-df4d-4715-b142-276b6bce75ab",
"address":"10.0.0.3",
"protocol_port":80,
"id":"beb53b4d-230b-4abd-8118-575b8fa006ef"
}
]
}
`)
})
count := 0
members.List(fake.ServiceClient(), members.ListOpts{}).EachPage(func(page pagination.Page) (bool, error) {
count++
actual, err := members.ExtractMembers(page)
if err != nil {
t.Errorf("Failed to extract members: %v", err)
return false, err
}
expected := []members.Member{
{
Status: "ACTIVE",
Weight: 1,
AdminStateUp: true,
TenantID: "83657cfcdfe44cd5920adaf26c48ceea",
PoolID: "72741b06-df4d-4715-b142-276b6bce75ab",
Address: "10.0.0.4",
ProtocolPort: 80,
ID: "701b531b-111a-4f21-ad85-4795b7b12af6",
},
{
Status: "ACTIVE",
Weight: 1,
AdminStateUp: true,
TenantID: "83657cfcdfe44cd5920adaf26c48ceea",
PoolID: "72741b06-df4d-4715-b142-276b6bce75ab",
Address: "10.0.0.3",
ProtocolPort: 80,
ID: "beb53b4d-230b-4abd-8118-575b8fa006ef",
},
}
th.CheckDeepEquals(t, expected, actual)
return true, nil
})
if count != 1 {
t.Errorf("Expected 1 page, got %d", count)
}
}
// Update load balancer
func (os *OpenStack) UpdateLoadBalancer(name string, hosts []*provider.HostPort, externalIPs []string) (string, error) {
if len(externalIPs) > 1 {
return "", fmt.Errorf("multiple floatingips are not yet supported by openstack")
}
vip, err := os.getVipByName(name)
if err != nil {
return "", err
}
lb, err := os.GetLoadBalancer(name)
if err != nil {
return "", err
}
// Set of member (addresses) that _should_ exist
addrs := make(map[string]*provider.HostPort)
for _, host := range hosts {
addrs[host.Ipaddress] = host
}
// Iterate over members that _do_ exist
pager := members.List(os.network, members.ListOpts{PoolID: vip.PoolID})
err = pager.EachPage(func(page pagination.Page) (bool, error) {
memList, err := members.ExtractMembers(page)
if err != nil {
return false, err
}
for _, member := range memList {
if _, found := addrs[member.Address]; found {
// Member already exists
delete(addrs, member.Address)
} else {
// Member needs to be deleted
err = members.Delete(os.network, member.ID).ExtractErr()
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
for _, addr := range addrs {
_, err := members.Create(os.network, members.CreateOpts{
TenantID: lb.TenantID,
PoolID: vip.PoolID,
Address: addr.Ipaddress,
ProtocolPort: int(addr.TargetPort),
}).Extract()
if err != nil {
return "", err
}
}
// bind to external ip
if len(externalIPs) > 0 {
err := os.BindPortToFloatingip(vip.PortID, externalIPs[0], vip.TenantID)
if err != nil {
return "", err
}
}
return lb.Vip, nil
}