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resource_alicloud_slb_server_group.go
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resource_alicloud_slb_server_group.go
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package alicloud
import (
"fmt"
"strconv"
"strings"
"time"
"github.com/aliyun/alibaba-cloud-sdk-go/services/slb"
"github.com/hashicorp/terraform/helper/resource"
"github.com/hashicorp/terraform/helper/schema"
)
func resourceAliyunSlbServerGroup() *schema.Resource {
return &schema.Resource{
Create: resourceAliyunSlbServerGroupCreate,
Read: resourceAliyunSlbServerGroupRead,
Update: resourceAliyunSlbServerGroupUpdate,
Delete: resourceAliyunSlbServerGroupDelete,
Importer: &schema.ResourceImporter{
State: schema.ImportStatePassthrough,
},
Schema: map[string]*schema.Schema{
"load_balancer_id": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"name": &schema.Schema{
Type: schema.TypeString,
Optional: true,
Default: "tf-server-group",
},
"servers": &schema.Schema{
Type: schema.TypeSet,
Optional: true,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"server_ids": &schema.Schema{
Type: schema.TypeList,
Required: true,
Elem: &schema.Schema{Type: schema.TypeString},
MaxItems: 20,
MinItems: 1,
},
"port": &schema.Schema{
Type: schema.TypeInt,
Required: true,
ValidateFunc: validateIntegerInRange(1, 65535),
},
"weight": &schema.Schema{
Type: schema.TypeInt,
Optional: true,
Default: 100,
ValidateFunc: validateIntegerInRange(0, 100),
},
},
},
MaxItems: 20,
MinItems: 0,
},
},
}
}
func resourceAliyunSlbServerGroupCreate(d *schema.ResourceData, meta interface{}) error {
var groupId string
req := slb.CreateCreateVServerGroupRequest()
req.LoadBalancerId = d.Get("load_balancer_id").(string)
req.VServerGroupName = d.Get("name").(string)
req.BackendServers = expandBackendServersWithPortToString(d.Get("servers").(*schema.Set).List())
if group, err := meta.(*AliyunClient).slbconn.CreateVServerGroup(req); err != nil {
return fmt.Errorf("CreateVServerGroup got an error: %#v", err)
} else {
groupId = group.VServerGroupId
}
d.SetId(groupId)
return resourceAliyunSlbServerGroupUpdate(d, meta)
}
func resourceAliyunSlbServerGroupRead(d *schema.ResourceData, meta interface{}) error {
group, err := meta.(*AliyunClient).DescribeSlbVServerGroupAttribute(d.Id())
if err != nil {
if NotFoundError(err) {
d.SetId("")
return nil
}
return err
}
d.Set("name", group.VServerGroupName)
d.Set("load_balancer_id", d.Get("load_balancer_id").(string))
servers := make([]map[string]interface{}, 0)
portAndWeight := make(map[string][]string)
for _, server := range group.BackendServers.BackendServer {
key := fmt.Sprintf("%d%s%d", server.Port, COLON_SEPARATED, server.Weight)
if v, ok := portAndWeight[key]; !ok {
portAndWeight[key] = []string{server.ServerId}
} else {
v = append(v, server.ServerId)
portAndWeight[key] = v
}
}
for key, value := range portAndWeight {
k := strings.Split(key, COLON_SEPARATED)
p, e := strconv.Atoi(k[0])
if e != nil {
return fmt.Errorf("Convertting port %s to int got an error: %#v.", k[0], e)
}
w, e := strconv.Atoi(k[1])
if e != nil {
return fmt.Errorf("Convertting weight %s to int got an error: %#v.", k[1], e)
}
s := map[string]interface{}{
"server_ids": value,
"port": p,
"weight": w,
}
servers = append(servers, s)
}
if err := d.Set("servers", servers); err != nil {
return err
}
return nil
}
func resourceAliyunSlbServerGroupUpdate(d *schema.ResourceData, meta interface{}) error {
slbconn := meta.(*AliyunClient).slbconn
d.Partial(true)
name := d.Get("name").(string)
update := false
if d.HasChange("name") && !d.IsNewResource() {
d.SetPartial("name")
update = true
}
if d.HasChange("servers") && !d.IsNewResource() {
o, n := d.GetChange("servers")
os := o.(*schema.Set)
ns := n.(*schema.Set)
remove := os.Difference(ns).List()
add := ns.Difference(os).List()
if len(remove) > 0 {
req := slb.CreateRemoveVServerGroupBackendServersRequest()
req.VServerGroupId = d.Id()
req.BackendServers = expandBackendServersWithPortToString(remove)
if _, err := slbconn.RemoveVServerGroupBackendServers(req); err != nil {
return fmt.Errorf("RemoveVServerGroupBackendServers got an error: %#v", err)
}
}
if len(add) > 0 {
req := slb.CreateAddVServerGroupBackendServersRequest()
req.VServerGroupId = d.Id()
req.BackendServers = expandBackendServersWithPortToString(add)
if _, err := slbconn.AddVServerGroupBackendServers(req); err != nil {
return fmt.Errorf("AddVServerGroupBackendServers got an error: %#v", err)
}
}
if len(add) < 1 && len(remove) < 1 {
update = true
}
d.SetPartial("servers")
}
if update {
req := slb.CreateSetVServerGroupAttributeRequest()
req.VServerGroupId = d.Id()
req.VServerGroupName = name
req.BackendServers = expandBackendServersWithPortToString(d.Get("servers").(*schema.Set).List())
if _, err := slbconn.SetVServerGroupAttribute(req); err != nil {
return fmt.Errorf("SetVServerGroupAttribute got an error: %#v", err)
}
}
d.Partial(false)
return resourceAliyunSlbServerGroupRead(d, meta)
}
func resourceAliyunSlbServerGroupDelete(d *schema.ResourceData, meta interface{}) error {
client := meta.(*AliyunClient)
req := slb.CreateDeleteVServerGroupRequest()
req.VServerGroupId = d.Id()
return resource.Retry(5*time.Minute, func() *resource.RetryError {
if _, err := client.slbconn.DeleteVServerGroup(req); err != nil {
if IsExceptedErrors(err, []string{VServerGroupNotFoundMessage, InvalidParameter}) {
return nil
}
if IsExceptedErrors(err, []string{RspoolVipExist}) {
return resource.RetryableError(fmt.Errorf("DeleteVServerGroup got an error: %#v", err))
}
return resource.NonRetryableError(err)
}
if _, err := meta.(*AliyunClient).DescribeSlbVServerGroupAttribute(d.Id()); err != nil {
if NotFoundError(err) {
return nil
}
return resource.NonRetryableError(fmt.Errorf("While deleting VServer Group, DescribeVServerGroupAttribute got an error: %#v", err))
}
return resource.RetryableError(fmt.Errorf("DeleteVServerGroup %s timeout.", d.Id()))
})
}