lb pool operations

This commit is contained in:
Jon Perritt 2015-01-14 11:55:17 -07:00
parent 966c8420d1
commit 7132b02a84
2 changed files with 252 additions and 0 deletions

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package openstack
import (
"fmt"
"log"
"github.com/hashicorp/terraform/helper/schema"
"github.com/jrperritt/terraform/helper/hashcode"
"github.com/rackspace/gophercloud/openstack/networking/v2/extensions/lbaas/pools"
)
func resourceLBPool() *schema.Resource {
return &schema.Resource{
Create: resourceLBPoolCreate,
Read: resourceLBPoolRead,
Update: resourceLBPoolUpdate,
Delete: resourceLBPoolDelete,
Schema: map[string]*schema.Schema{
"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,
},
"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))
},
},
},
}
}
func resourceLBPoolCreate(d *schema.ResourceData, meta interface{}) error {
config := meta.(*Config)
osClient := config.networkingV2Client
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(osClient, createOpts).Extract()
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)
if mIDs := resourcePoolMonitorIDs(d); mIDs != nil {
for _, mID := range mIDs {
_, err := pools.AssociateMonitor(osClient, p.ID, mID).Extract()
if err != nil {
return fmt.Errorf("Error associating monitor (%s) with OpenStack LB pool (%s): %s", mID, p.ID, err)
}
}
}
return resourceLBPoolRead(d, meta)
}
func resourceLBPoolRead(d *schema.ResourceData, meta interface{}) error {
config := meta.(*Config)
osClient := config.networkingV2Client
p, err := pools.Get(osClient, d.Id()).Extract()
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)
d.Set("name", p.Name)
d.Set("protocol", p.Protocol)
d.Set("subnet_id", p.SubnetID)
d.Set("lb_method", p.LBMethod)
if _, exists := d.GetOk("tenant_id"); exists {
if d.HasChange("tenant_id") {
d.Set("tenant_id", p.TenantID)
}
} else {
d.Set("tenant_id", "")
}
d.Set("monitor_ids", p.MonitorIDs)
return nil
}
func resourceLBPoolUpdate(d *schema.ResourceData, meta interface{}) error {
config := meta.(*Config)
osClient := config.networkingV2Client
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(osClient, 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(osClient, 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(osClient, 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())
}
}
return resourceLBPoolRead(d, meta)
}
func resourceLBPoolDelete(d *schema.ResourceData, meta interface{}) error {
config := meta.(*Config)
osClient := config.networkingV2Client
err := pools.Delete(osClient, d.Id()).ExtractErr()
if err != nil {
return fmt.Errorf("Error deleting OpenStack LB Pool: %s", err)
}
d.SetId("")
return nil
}
func resourcePoolMonitorIDs(d *schema.ResourceData) []string {
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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---
layout: "openstack"
page_title: "OpenStack: openstack_lb_pool"
sidebar_current: "docs-openstack-resource-lb-pool"
description: |-
Manages a load balancer pool resource within OpenStack.
---
# openstack\_lb\_pool
Manages a load balancer pool resource within OpenStack.
## Example Usage
```
resource "openstack_lb_pool" "pool_1" {
name = "tf_test_lb_pool"
protocol = "HTTP"
subnet_id = "12345"
lb_method = "ROUND_ROBIN"
monitor_id = "67890"
}
```
## Argument Reference
The following arguments are supported:
* `name` - (Required) The name of the pool. Changing this updates the name of
the existing pool.
* `protocol` - (Required) The protocol used by the pool members, you can use
either 'TCP, 'HTTP', or 'HTTPS'. Changing this creates a new pool.
* `subnet_id` - (Required) The network on which the members of the pool will be
located. Only members that are on this network can be added to the pool.
Changing this creates a new pool.
* `lb_method` - (Required) The algorithm used to distribute load between the
members of the pool. The current specification supports 'ROUND_ROBIN' and
'LEAST_CONNECTIONS' as valid values for this attribute.
* `tenant_id` - (Optional) The owner of the pool. Required if admin wants to
create a pool member for another tenant. Changing this creates a new pool.
* `monitor_ids` - (Optional) A list of IDs of monitors to associate with the
pool.
## Attributes Reference
The following attributes are exported:
* `name` - See Argument Reference above.
* `protocol` - See Argument Reference above.
* `subnet_id` - See Argument Reference above.
* `lb_method` - See Argument Reference above.
* `tenant_id` - See Argument Reference above.
* `monitor_id` - See Argument Reference above.