468 lines
14 KiB
Go
468 lines
14 KiB
Go
package openstack
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import (
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"bytes"
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"fmt"
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"log"
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"time"
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"github.com/hashicorp/terraform/helper/hashcode"
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"github.com/hashicorp/terraform/helper/resource"
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"github.com/hashicorp/terraform/helper/schema"
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"github.com/gophercloud/gophercloud"
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"github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/lbaas/members"
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"github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/lbaas/pools"
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"github.com/gophercloud/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,
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Read: resourceLBPoolV1Read,
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Update: resourceLBPoolV1Update,
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Delete: resourceLBPoolV1Delete,
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Importer: &schema.ResourceImporter{
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State: schema.ImportStatePassthrough,
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},
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Timeouts: &schema.ResourceTimeout{
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Create: schema.DefaultTimeout(10 * time.Minute),
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Delete: schema.DefaultTimeout(10 * time.Minute),
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},
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Schema: map[string]*schema.Schema{
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"region": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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ForceNew: true,
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DefaultFunc: schema.EnvDefaultFunc("OS_REGION_NAME", ""),
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},
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"name": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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ForceNew: false,
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},
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"protocol": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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ForceNew: true,
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},
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"subnet_id": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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ForceNew: true,
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},
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"lb_method": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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ForceNew: false,
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},
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"lb_provider": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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Computed: true,
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ForceNew: true,
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},
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"tenant_id": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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ForceNew: true,
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Computed: true,
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},
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"member": &schema.Schema{
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Type: schema.TypeSet,
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Deprecated: "Use openstack_lb_member_v1 instead. This attribute will be removed in a future version.",
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Optional: true,
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Elem: &schema.Resource{
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Schema: map[string]*schema.Schema{
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"region": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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ForceNew: true,
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DefaultFunc: schema.EnvDefaultFunc("OS_REGION_NAME", ""),
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},
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"tenant_id": &schema.Schema{
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Type: schema.TypeString,
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Optional: true,
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ForceNew: true,
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},
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"address": &schema.Schema{
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Type: schema.TypeString,
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Required: true,
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ForceNew: true,
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},
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"port": &schema.Schema{
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Type: schema.TypeInt,
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Required: true,
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ForceNew: true,
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},
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"admin_state_up": &schema.Schema{
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Type: schema.TypeBool,
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Required: true,
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ForceNew: false,
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},
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},
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},
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Set: resourceLBMemberV1Hash,
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},
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"monitor_ids": &schema.Schema{
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Type: schema.TypeSet,
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Optional: true,
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ForceNew: false,
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Elem: &schema.Schema{Type: schema.TypeString},
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Set: schema.HashString,
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},
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},
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}
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}
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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(GetRegion(d))
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if err != nil {
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return fmt.Errorf("Error creating OpenStack networking client: %s", err)
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}
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createOpts := pools.CreateOpts{
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Name: d.Get("name").(string),
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SubnetID: d.Get("subnet_id").(string),
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TenantID: d.Get("tenant_id").(string),
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Provider: d.Get("lb_provider").(string),
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}
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if v, ok := d.GetOk("protocol"); ok {
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protocol := resourceLBPoolV1DetermineProtocol(v.(string))
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createOpts.Protocol = protocol
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}
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if v, ok := d.GetOk("lb_method"); ok {
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lbMethod := resourceLBPoolV1DetermineLBMethod(v.(string))
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createOpts.LBMethod = lbMethod
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}
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log.Printf("[DEBUG] Create Options: %#v", createOpts)
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p, err := pools.Create(networkingClient, createOpts).Extract()
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if err != nil {
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return fmt.Errorf("Error creating OpenStack LB pool: %s", err)
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}
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log.Printf("[INFO] LB Pool ID: %s", p.ID)
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log.Printf("[DEBUG] Waiting for OpenStack LB pool (%s) to become available.", p.ID)
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stateConf := &resource.StateChangeConf{
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Pending: []string{"PENDING_CREATE"},
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Target: []string{"ACTIVE"},
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Refresh: waitForLBPoolActive(networkingClient, p.ID),
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Timeout: d.Timeout(schema.TimeoutCreate),
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Delay: 5 * time.Second,
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MinTimeout: 3 * time.Second,
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}
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_, err = stateConf.WaitForState()
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if err != nil {
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return err
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}
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d.SetId(p.ID)
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if mIDs := resourcePoolMonitorIDsV1(d); mIDs != nil {
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for _, mID := range mIDs {
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_, err := pools.AssociateMonitor(networkingClient, p.ID, mID).Extract()
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if err != nil {
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return fmt.Errorf("Error associating monitor (%s) with OpenStack LB pool (%s): %s", mID, p.ID, err)
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}
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}
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}
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if memberOpts := resourcePoolMembersV1(d); memberOpts != nil {
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for _, memberOpt := range memberOpts {
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_, err := members.Create(networkingClient, memberOpt).Extract()
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if err != nil {
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return fmt.Errorf("Error creating OpenStack LB member: %s", err)
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}
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}
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}
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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(GetRegion(d))
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if err != nil {
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return fmt.Errorf("Error creating OpenStack networking client: %s", err)
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}
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p, err := pools.Get(networkingClient, d.Id()).Extract()
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if err != nil {
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return CheckDeleted(d, err, "LB pool")
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}
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log.Printf("[DEBUG] Retrieved OpenStack LB Pool %s: %+v", d.Id(), p)
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d.Set("name", p.Name)
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d.Set("protocol", p.Protocol)
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d.Set("subnet_id", p.SubnetID)
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d.Set("lb_method", p.LBMethod)
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d.Set("lb_provider", p.Provider)
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d.Set("tenant_id", p.TenantID)
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d.Set("monitor_ids", p.MonitorIDs)
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d.Set("member_ids", p.MemberIDs)
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d.Set("region", GetRegion(d))
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return nil
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}
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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(GetRegion(d))
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if err != nil {
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return fmt.Errorf("Error creating OpenStack networking client: %s", err)
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}
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var updateOpts pools.UpdateOpts
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// If either option changed, update both.
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// Gophercloud complains if one is empty.
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if d.HasChange("name") || d.HasChange("lb_method") {
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updateOpts.Name = d.Get("name").(string)
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lbMethod := resourceLBPoolV1DetermineLBMethod(d.Get("lb_method").(string))
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updateOpts.LBMethod = lbMethod
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}
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log.Printf("[DEBUG] Updating OpenStack LB Pool %s with options: %+v", d.Id(), updateOpts)
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_, err = pools.Update(networkingClient, d.Id(), updateOpts).Extract()
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if err != nil {
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return fmt.Errorf("Error updating OpenStack LB Pool: %s", err)
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}
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if d.HasChange("monitor_ids") {
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oldMIDsRaw, newMIDsRaw := d.GetChange("monitor_ids")
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oldMIDsSet, newMIDsSet := oldMIDsRaw.(*schema.Set), newMIDsRaw.(*schema.Set)
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monitorsToAdd := newMIDsSet.Difference(oldMIDsSet)
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monitorsToRemove := oldMIDsSet.Difference(newMIDsSet)
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log.Printf("[DEBUG] Monitors to add: %v", monitorsToAdd)
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log.Printf("[DEBUG] Monitors to remove: %v", monitorsToRemove)
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for _, m := range monitorsToAdd.List() {
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_, err := pools.AssociateMonitor(networkingClient, d.Id(), m.(string)).Extract()
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if err != nil {
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return fmt.Errorf("Error associating monitor (%s) with OpenStack server (%s): %s", m.(string), d.Id(), err)
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}
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log.Printf("[DEBUG] Associated monitor (%s) with pool (%s)", m.(string), d.Id())
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}
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for _, m := range monitorsToRemove.List() {
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_, err := pools.DisassociateMonitor(networkingClient, d.Id(), m.(string)).Extract()
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if err != nil {
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return fmt.Errorf("Error disassociating monitor (%s) from OpenStack server (%s): %s", m.(string), d.Id(), err)
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}
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log.Printf("[DEBUG] Disassociated monitor (%s) from pool (%s)", m.(string), d.Id())
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}
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}
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if d.HasChange("member") {
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oldMembersRaw, newMembersRaw := d.GetChange("member")
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oldMembersSet, newMembersSet := oldMembersRaw.(*schema.Set), newMembersRaw.(*schema.Set)
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membersToAdd := newMembersSet.Difference(oldMembersSet)
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membersToRemove := oldMembersSet.Difference(newMembersSet)
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log.Printf("[DEBUG] Members to add: %v", membersToAdd)
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log.Printf("[DEBUG] Members to remove: %v", membersToRemove)
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for _, m := range membersToRemove.List() {
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oldMember := resourcePoolMemberV1(d, m)
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listOpts := members.ListOpts{
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PoolID: d.Id(),
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Address: oldMember.Address,
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ProtocolPort: oldMember.ProtocolPort,
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}
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err = members.List(networkingClient, listOpts).EachPage(func(page pagination.Page) (bool, error) {
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extractedMembers, err := members.ExtractMembers(page)
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if err != nil {
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return false, err
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}
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for _, member := range extractedMembers {
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err := members.Delete(networkingClient, member.ID).ExtractErr()
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if err != nil {
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return false, fmt.Errorf("Error deleting member (%s) from OpenStack LB pool (%s): %s", member.ID, d.Id(), err)
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}
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log.Printf("[DEBUG] Deleted member (%s) from pool (%s)", member.ID, d.Id())
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}
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return true, nil
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})
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}
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for _, m := range membersToAdd.List() {
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createOpts := resourcePoolMemberV1(d, m)
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newMember, err := members.Create(networkingClient, createOpts).Extract()
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if err != nil {
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return fmt.Errorf("Error creating LB member: %s", err)
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}
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log.Printf("[DEBUG] Created member (%s) in OpenStack LB pool (%s)", newMember.ID, d.Id())
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}
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}
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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(GetRegion(d))
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if err != nil {
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return fmt.Errorf("Error creating OpenStack networking client: %s", err)
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}
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// Make sure all monitors are disassociated first
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if v, ok := d.GetOk("monitor_ids"); ok {
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if monitorIDList, ok := v.([]interface{}); ok {
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for _, monitorID := range monitorIDList {
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mID := monitorID.(string)
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log.Printf("[DEBUG] Attempting to disassociate monitor %s from pool %s", mID, d.Id())
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if res := pools.DisassociateMonitor(networkingClient, d.Id(), mID); res.Err != nil {
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return fmt.Errorf("Error disassociating monitor %s from pool %s: %s", mID, d.Id(), err)
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}
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}
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}
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}
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stateConf := &resource.StateChangeConf{
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Pending: []string{"ACTIVE", "PENDING_DELETE"},
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Target: []string{"DELETED"},
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Refresh: waitForLBPoolDelete(networkingClient, d.Id()),
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Timeout: d.Timeout(schema.TimeoutDelete),
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Delay: 5 * time.Second,
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MinTimeout: 3 * time.Second,
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}
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_, err = stateConf.WaitForState()
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if err != nil {
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return fmt.Errorf("Error deleting OpenStack LB Pool: %s", err)
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}
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d.SetId("")
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return nil
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}
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func resourcePoolMonitorIDsV1(d *schema.ResourceData) []string {
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mIDsRaw := d.Get("monitor_ids").(*schema.Set)
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mIDs := make([]string, mIDsRaw.Len())
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for i, raw := range mIDsRaw.List() {
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mIDs[i] = raw.(string)
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}
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return mIDs
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}
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func resourcePoolMembersV1(d *schema.ResourceData) []members.CreateOpts {
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memberOptsRaw := d.Get("member").(*schema.Set)
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memberOpts := make([]members.CreateOpts, memberOptsRaw.Len())
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for i, raw := range memberOptsRaw.List() {
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rawMap := raw.(map[string]interface{})
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memberOpts[i] = members.CreateOpts{
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TenantID: rawMap["tenant_id"].(string),
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Address: rawMap["address"].(string),
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ProtocolPort: rawMap["port"].(int),
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PoolID: d.Id(),
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}
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}
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return memberOpts
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}
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func resourcePoolMemberV1(d *schema.ResourceData, raw interface{}) members.CreateOpts {
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rawMap := raw.(map[string]interface{})
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return members.CreateOpts{
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TenantID: rawMap["tenant_id"].(string),
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Address: rawMap["address"].(string),
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ProtocolPort: rawMap["port"].(int),
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PoolID: d.Id(),
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}
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}
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func resourceLBMemberV1Hash(v interface{}) int {
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var buf bytes.Buffer
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m := v.(map[string]interface{})
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buf.WriteString(fmt.Sprintf("%s-", m["region"].(string)))
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buf.WriteString(fmt.Sprintf("%s-", m["tenant_id"].(string)))
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buf.WriteString(fmt.Sprintf("%s-", m["address"].(string)))
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buf.WriteString(fmt.Sprintf("%d-", m["port"].(int)))
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return hashcode.String(buf.String())
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}
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func resourceLBPoolV1DetermineProtocol(v string) pools.LBProtocol {
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var protocol pools.LBProtocol
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switch v {
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case "TCP":
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protocol = pools.ProtocolTCP
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case "HTTP":
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protocol = pools.ProtocolHTTP
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case "HTTPS":
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protocol = pools.ProtocolHTTPS
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}
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return protocol
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}
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func resourceLBPoolV1DetermineLBMethod(v string) pools.LBMethod {
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var lbMethod pools.LBMethod
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switch v {
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case "ROUND_ROBIN":
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lbMethod = pools.LBMethodRoundRobin
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case "LEAST_CONNECTIONS":
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lbMethod = pools.LBMethodLeastConnections
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}
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return lbMethod
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}
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func waitForLBPoolActive(networkingClient *gophercloud.ServiceClient, poolId string) resource.StateRefreshFunc {
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return func() (interface{}, string, error) {
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p, err := pools.Get(networkingClient, poolId).Extract()
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if err != nil {
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return nil, "", err
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}
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log.Printf("[DEBUG] OpenStack LB Pool: %+v", p)
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if p.Status == "ACTIVE" {
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return p, "ACTIVE", nil
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}
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return p, p.Status, nil
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}
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}
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func waitForLBPoolDelete(networkingClient *gophercloud.ServiceClient, poolId string) resource.StateRefreshFunc {
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return func() (interface{}, string, error) {
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log.Printf("[DEBUG] Attempting to delete OpenStack LB Pool %s", poolId)
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p, err := pools.Get(networkingClient, poolId).Extract()
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if err != nil {
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if _, ok := err.(gophercloud.ErrDefault404); ok {
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log.Printf("[DEBUG] Successfully deleted OpenStack LB Pool %s", poolId)
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return p, "DELETED", nil
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}
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return p, "ACTIVE", err
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}
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log.Printf("[DEBUG] OpenStack LB Pool: %+v", p)
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err = pools.Delete(networkingClient, poolId).ExtractErr()
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if err != nil {
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if _, ok := err.(gophercloud.ErrDefault404); ok {
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log.Printf("[DEBUG] Successfully deleted OpenStack LB Pool %s", poolId)
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return p, "DELETED", nil
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}
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return p, "ACTIVE", err
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}
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log.Printf("[DEBUG] OpenStack LB Pool %s still active.", poolId)
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return p, "ACTIVE", nil
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}
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}
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