terraform/builtin/providers/openstack/resource_openstack_lb_pool_...

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package openstack
import (
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"bytes"
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"fmt"
"log"
"github.com/hashicorp/terraform/helper/hashcode"
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"github.com/hashicorp/terraform/helper/schema"
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"github.com/rackspace/gophercloud/openstack/networking/v2/extensions/lbaas/members"
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"github.com/rackspace/gophercloud/openstack/networking/v2/extensions/lbaas/pools"
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"github.com/rackspace/gophercloud/pagination"
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)
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func resourceLBPoolV1() *schema.Resource {
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return &schema.Resource{
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Create: resourceLBPoolV1Create,
Read: resourceLBPoolV1Read,
Update: resourceLBPoolV1Update,
Delete: resourceLBPoolV1Delete,
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Schema: map[string]*schema.Schema{
"region": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
DefaultFunc: envDefaultFunc("OS_REGION_NAME"),
},
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"name": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: false,
},
"protocol": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"subnet_id": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"lb_method": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: false,
},
"tenant_id": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
},
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"member": &schema.Schema{
Type: schema.TypeSet,
Optional: true,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"region": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
DefaultFunc: envDefaultFunc("OS_REGION_NAME"),
},
"tenant_id": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
},
"address": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"port": &schema.Schema{
Type: schema.TypeInt,
Required: true,
ForceNew: true,
},
"admin_state_up": &schema.Schema{
Type: schema.TypeBool,
Required: true,
ForceNew: false,
},
},
},
Set: resourceLBMemberV1Hash,
},
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"monitor_ids": &schema.Schema{
Type: schema.TypeSet,
Optional: true,
ForceNew: false,
Elem: &schema.Schema{Type: schema.TypeString},
Set: func(v interface{}) int {
return hashcode.String(v.(string))
},
},
},
}
}
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func resourceLBPoolV1Create(d *schema.ResourceData, meta interface{}) error {
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config := meta.(*Config)
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networkingClient, err := config.networkingV2Client(d.Get("region").(string))
if err != nil {
return fmt.Errorf("Error creating OpenStack networking client: %s", err)
}
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createOpts := pools.CreateOpts{
Name: d.Get("name").(string),
Protocol: d.Get("protocol").(string),
SubnetID: d.Get("subnet_id").(string),
LBMethod: d.Get("lb_method").(string),
TenantID: d.Get("tenant_id").(string),
}
log.Printf("[INFO] Requesting lb pool creation")
p, err := pools.Create(networkingClient, createOpts).Extract()
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if err != nil {
return fmt.Errorf("Error creating OpenStack LB pool: %s", err)
}
log.Printf("[INFO] LB Pool ID: %s", p.ID)
d.SetId(p.ID)
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if mIDs := resourcePoolMonitorIDsV1(d); mIDs != nil {
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for _, mID := range mIDs {
_, err := pools.AssociateMonitor(networkingClient, p.ID, mID).Extract()
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if err != nil {
return fmt.Errorf("Error associating monitor (%s) with OpenStack LB pool (%s): %s", mID, p.ID, err)
}
}
}
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if memberOpts := resourcePoolMembersV1(d); memberOpts != nil {
for _, memberOpt := range memberOpts {
_, err := members.Create(networkingClient, memberOpt).Extract()
if err != nil {
return fmt.Errorf("Error creating OpenStack LB member: %s", err)
}
}
}
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return resourceLBPoolV1Read(d, meta)
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}
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func resourceLBPoolV1Read(d *schema.ResourceData, meta interface{}) error {
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config := meta.(*Config)
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networkingClient, err := config.networkingV2Client(d.Get("region").(string))
if err != nil {
return fmt.Errorf("Error creating OpenStack networking client: %s", err)
}
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p, err := pools.Get(networkingClient, d.Id()).Extract()
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if err != nil {
return fmt.Errorf("Error retrieving OpenStack LB Pool: %s", err)
}
log.Printf("[DEBUG] Retreived OpenStack LB Pool %s: %+v", d.Id(), p)
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d.Set("region", d.Get("region").(string))
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d.Set("name", p.Name)
d.Set("protocol", p.Protocol)
d.Set("subnet_id", p.SubnetID)
d.Set("lb_method", p.LBMethod)
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if t, exists := d.GetOk("tenant_id"); exists && t != "" {
d.Set("tenant_id", p.TenantID)
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} else {
d.Set("tenant_id", "")
}
d.Set("monitor_ids", p.MonitorIDs)
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d.Set("member_ids", p.MemberIDs)
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return nil
}
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func resourceLBPoolV1Update(d *schema.ResourceData, meta interface{}) error {
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config := meta.(*Config)
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networkingClient, err := config.networkingV2Client(d.Get("region").(string))
if err != nil {
return fmt.Errorf("Error creating OpenStack networking client: %s", err)
}
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var updateOpts pools.UpdateOpts
if d.HasChange("name") {
updateOpts.Name = d.Get("name").(string)
}
if d.HasChange("lb_method") {
updateOpts.LBMethod = d.Get("lb_method").(string)
}
log.Printf("[DEBUG] Updating OpenStack LB Pool %s with options: %+v", d.Id(), updateOpts)
_, err = pools.Update(networkingClient, d.Id(), updateOpts).Extract()
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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()
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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()
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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())
}
}
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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())
}
}
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return resourceLBPoolV1Read(d, meta)
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}
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func resourceLBPoolV1Delete(d *schema.ResourceData, meta interface{}) error {
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config := meta.(*Config)
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networkingClient, err := config.networkingV2Client(d.Get("region").(string))
if err != nil {
return fmt.Errorf("Error creating OpenStack networking client: %s", err)
}
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err = pools.Delete(networkingClient, d.Id()).ExtractErr()
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if err != nil {
return fmt.Errorf("Error deleting OpenStack LB Pool: %s", err)
}
d.SetId("")
return nil
}
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func resourcePoolMonitorIDsV1(d *schema.ResourceData) []string {
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mIDsRaw := d.Get("monitor_ids").(*schema.Set)
mIDs := make([]string, mIDsRaw.Len())
for i, raw := range mIDsRaw.List() {
mIDs[i] = raw.(string)
}
return mIDs
}
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func resourcePoolMembersV1(d *schema.ResourceData) []members.CreateOpts {
memberOptsRaw := (d.Get("member")).(*schema.Set)
memberOpts := make([]members.CreateOpts, memberOptsRaw.Len())
for i, raw := range memberOptsRaw.List() {
rawMap := raw.(map[string]interface{})
memberOpts[i] = members.CreateOpts{
TenantID: rawMap["tenant_id"].(string),
Address: rawMap["address"].(string),
ProtocolPort: rawMap["port"].(int),
PoolID: d.Id(),
}
}
return memberOpts
}
func resourcePoolMemberV1(d *schema.ResourceData, raw interface{}) members.CreateOpts {
rawMap := raw.(map[string]interface{})
return members.CreateOpts{
TenantID: rawMap["tenant_id"].(string),
Address: rawMap["address"].(string),
ProtocolPort: rawMap["port"].(int),
PoolID: d.Id(),
}
}
func resourceLBMemberV1Hash(v interface{}) int {
var buf bytes.Buffer
m := v.(map[string]interface{})
buf.WriteString(fmt.Sprintf("%s-", m["region"].(string)))
buf.WriteString(fmt.Sprintf("%s-", m["tenant_id"].(string)))
buf.WriteString(fmt.Sprintf("%s-", m["address"].(string)))
buf.WriteString(fmt.Sprintf("%d-", m["port"].(int)))
return hashcode.String(buf.String())
}