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resource_cloudstack_loadbalancer.go
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resource_cloudstack_loadbalancer.go
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package cloudstack
import (
"fmt"
"log"
"strings"
"github.com/hashicorp/terraform/helper/schema"
"github.com/xanzy/go-cloudstack/cloudstack"
)
func resourceCloudStackLoadBalancerRule() *schema.Resource {
return &schema.Resource{
Create: resourceCloudStackLoadBalancerRuleCreate,
Read: resourceCloudStackLoadBalancerRuleRead,
Update: resourceCloudStackLoadBalancerRuleUpdate,
Delete: resourceCloudStackLoadBalancerRuleDelete,
Schema: map[string]*schema.Schema{
"name": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"description": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Computed: true,
},
"ipaddress": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"network": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
},
"algorithm": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"private_port": &schema.Schema{
Type: schema.TypeInt,
Required: true,
ForceNew: true,
},
"public_port": &schema.Schema{
Type: schema.TypeInt,
Required: true,
ForceNew: true,
},
"members": &schema.Schema{
Type: schema.TypeList,
Required: true,
ForceNew: true,
Elem: &schema.Schema{Type: schema.TypeString},
},
},
}
}
func resourceCloudStackLoadBalancerRuleCreate(d *schema.ResourceData, meta interface{}) error {
cs := meta.(*cloudstack.CloudStackClient)
d.Partial(true)
// Create a new parameter struct
p := cs.LoadBalancer.NewCreateLoadBalancerRuleParams(
d.Get("algorithm").(string),
d.Get("name").(string),
d.Get("private_port").(int),
d.Get("public_port").(int),
)
// Don't autocreate a firewall rule, use a resource if needed
p.SetOpenfirewall(false)
// Set the description
if description, ok := d.GetOk("description"); ok {
p.SetDescription(description.(string))
} else {
p.SetDescription(d.Get("name").(string))
}
// Retrieve the network and the ID
if network, ok := d.GetOk("network"); ok {
networkid, e := retrieveID(cs, "network", network.(string))
if e != nil {
return e.Error()
}
// Set the default network ID
p.SetNetworkid(networkid)
}
// Retrieve the ipaddress ID
ipaddressid, e := retrieveID(cs, "ipaddress", d.Get("ipaddress").(string))
if e != nil {
return e.Error()
}
p.SetPublicipid(ipaddressid)
// Create the load balancer rule
r, err := cs.LoadBalancer.CreateLoadBalancerRule(p)
if err != nil {
return err
}
// Set the load balancer rule ID and set partials
d.SetId(r.Id)
d.SetPartial("name")
d.SetPartial("description")
d.SetPartial("ipaddress")
d.SetPartial("network")
d.SetPartial("algorithm")
d.SetPartial("private_port")
d.SetPartial("public_port")
// Create a new parameter struct
ap := cs.LoadBalancer.NewAssignToLoadBalancerRuleParams(r.Id)
var mbs []string
for _, id := range d.Get("members").([]interface{}) {
mbs = append(mbs, id.(string))
}
ap.SetVirtualmachineids(mbs)
_, err = cs.LoadBalancer.AssignToLoadBalancerRule(ap)
if err != nil {
return err
}
d.SetPartial("members")
d.Partial(false)
return resourceCloudStackLoadBalancerRuleRead(d, meta)
}
func resourceCloudStackLoadBalancerRuleRead(d *schema.ResourceData, meta interface{}) error {
cs := meta.(*cloudstack.CloudStackClient)
// Get the load balancer details
lb, count, err := cs.LoadBalancer.GetLoadBalancerRuleByID(d.Id())
if err != nil {
if count == 0 {
log.Printf("[DEBUG] Load balancer rule %s does no longer exist", d.Get("name").(string))
d.SetId("")
return nil
}
return err
}
d.Set("algorithm", lb.Algorithm)
d.Set("public_port", lb.Publicport)
d.Set("private_port", lb.Privateport)
setValueOrID(d, "ipaddress", lb.Publicip, lb.Publicipid)
// Only set network if user specified it to avoid spurious diffs
if _, ok := d.GetOk("network"); ok {
network, _, err := cs.Network.GetNetworkByID(lb.Networkid)
if err != nil {
return err
}
setValueOrID(d, "network", network.Name, lb.Networkid)
}
return nil
}
func resourceCloudStackLoadBalancerRuleUpdate(d *schema.ResourceData, meta interface{}) error {
cs := meta.(*cloudstack.CloudStackClient)
if d.HasChange("name") || d.HasChange("description") || d.HasChange("algorithm") {
name := d.Get("name").(string)
// Create new parameter struct
p := cs.LoadBalancer.NewUpdateLoadBalancerRuleParams(d.Id())
if d.HasChange("name") {
log.Printf("[DEBUG] Name has changed for load balancer rule %s, starting update", name)
p.SetName(name)
}
if d.HasChange("description") {
log.Printf(
"[DEBUG] Description has changed for load balancer rule %s, starting update", name)
p.SetDescription(d.Get("description").(string))
}
if d.HasChange("algorithm") {
algorithm := d.Get("algorithm").(string)
log.Printf(
"[DEBUG] Algorithm has changed to %s for load balancer rule %s, starting update",
algorithm,
name,
)
// Set the new Algorithm
p.SetAlgorithm(algorithm)
}
_, err := cs.LoadBalancer.UpdateLoadBalancerRule(p)
if err != nil {
return fmt.Errorf(
"Error updating load balancer rule %s", name)
}
}
return resourceCloudStackLoadBalancerRuleRead(d, meta)
}
func resourceCloudStackLoadBalancerRuleDelete(d *schema.ResourceData, meta interface{}) error {
cs := meta.(*cloudstack.CloudStackClient)
// Create a new parameter struct
p := cs.LoadBalancer.NewDeleteLoadBalancerRuleParams(d.Id())
log.Printf("[INFO] Deleting load balancer rule: %s", d.Get("name").(string))
if _, err := cs.LoadBalancer.DeleteLoadBalancerRule(p); err != nil {
// This is a very poor way to be told the ID does no longer exist :(
if !strings.Contains(err.Error(), fmt.Sprintf(
"Invalid parameter id value=%s due to incorrect long value format, "+
"or entity does not exist", d.Id())) {
return err
}
}
return nil
}