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resource_alicloud_slb_rule.go
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resource_alicloud_slb_rule.go
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package alicloud
import (
"fmt"
"strings"
"time"
"strconv"
"github.com/aliyun/alibaba-cloud-sdk-go/sdk/requests"
"github.com/aliyun/alibaba-cloud-sdk-go/services/slb"
"github.com/hashicorp/terraform/helper/resource"
"github.com/hashicorp/terraform/helper/schema"
"github.com/terraform-providers/terraform-provider-alicloud/alicloud/connectivity"
)
func resourceAliyunSlbRule() *schema.Resource {
return &schema.Resource{
Create: resourceAliyunSlbRuleCreate,
Read: resourceAliyunSlbRuleRead,
Update: resourceAliyunSlbRuleUpdate,
Delete: resourceAliyunSlbRuleDelete,
Importer: &schema.ResourceImporter{
State: schema.ImportStatePassthrough,
},
Schema: map[string]*schema.Schema{
"load_balancer_id": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"frontend_port": &schema.Schema{
Type: schema.TypeInt,
ValidateFunc: validateIntegerInRange(1, 65535),
Required: true,
ForceNew: true,
},
"name": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
Default: "tf-slb-rule",
},
"domain": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
},
"url": &schema.Schema{
Type: schema.TypeString,
Optional: true,
ForceNew: true,
},
"server_group_id": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
},
}
}
func resourceAliyunSlbRuleCreate(d *schema.ResourceData, meta interface{}) error {
client := meta.(*connectivity.AliyunClient)
slbService := SlbService{client}
slb_id := d.Get("load_balancer_id").(string)
port := d.Get("frontend_port").(int)
name := strings.Trim(d.Get("name").(string), " ")
group_id := strings.Trim(d.Get("server_group_id").(string), " ")
var domain, url, rule string
if v, ok := d.GetOk("domain"); ok {
domain = v.(string)
}
if v, ok := d.GetOk("url"); ok {
url = v.(string)
}
if domain == "" && url == "" {
return fmt.Errorf("At least one 'domain' or 'url' must be set.")
} else if domain == "" {
rule = fmt.Sprintf("[{'RuleName':'%s','Url':'%s','VServerGroupId':'%s'}]", name, url, group_id)
} else if url == "" {
rule = fmt.Sprintf("[{'RuleName':'%s','Domain':'%s','VServerGroupId':'%s'}]", name, domain, group_id)
} else {
rule = fmt.Sprintf("[{'RuleName':'%s','Domain':'%s','Url':'%s','VServerGroupId':'%s'}]", name, domain, url, group_id)
}
req := slb.CreateCreateRulesRequest()
req.LoadBalancerId = slb_id
req.ListenerPort = requests.NewInteger(port)
req.RuleList = rule
if err := resource.Retry(3*time.Minute, func() *resource.RetryError {
_, err := client.WithSlbClient(func(slbClient *slb.Client) (interface{}, error) {
return slbClient.CreateRules(req)
})
if err != nil {
if IsExceptedErrors(err, []string{BackendServerConfiguring}) {
return resource.RetryableError(fmt.Errorf("CreateRule got an error: %#v", err))
}
if IsExceptedError(err, RuleDomainExist) {
if ruleId, err := slbService.DescribeLoadBalancerRuleId(slb_id, port, domain, url); err != nil {
return resource.NonRetryableError(err)
} else {
return resource.NonRetryableError(fmt.Errorf("The rule with same domain and url already exists. "+
"Please import it using ID '%s' to import it or specify a different 'domain' or 'url' and then try again.", ruleId))
}
}
return resource.NonRetryableError(fmt.Errorf("CreateRule got an error: %#v", err))
}
return nil
}); err != nil {
return err
}
ruleId, err := slbService.DescribeLoadBalancerRuleId(slb_id, port, domain, url)
if err != nil {
return err
}
if ruleId == "" {
return fmt.Errorf("There is not found any rules in the load balancer %s and listener port %d.", slb_id, port)
}
d.SetId(ruleId)
return resourceAliyunSlbRuleRead(d, meta)
}
func resourceAliyunSlbRuleRead(d *schema.ResourceData, meta interface{}) error {
client := meta.(*connectivity.AliyunClient)
slbService := SlbService{client}
rule, err := slbService.DescribeLoadBalancerRuleAttribute(d.Id())
if err != nil {
if NotFoundError(err) {
d.SetId("")
return nil
}
return err
}
d.Set("name", rule.RuleName)
d.Set("load_balancer_id", rule.LoadBalancerId)
if port, err := strconv.Atoi(rule.ListenerPort); err != nil {
return fmt.Errorf("Convertting listener port from string to int got an error: %#v.", err)
} else {
d.Set("frontend_port", port)
}
d.Set("domain", rule.Domain)
d.Set("url", rule.Url)
d.Set("server_group_id", rule.VServerGroupId)
return nil
}
func resourceAliyunSlbRuleUpdate(d *schema.ResourceData, meta interface{}) error {
d.Partial(true)
if d.HasChange("server_group_id") {
req := slb.CreateSetRuleRequest()
req.RuleId = d.Id()
req.VServerGroupId = d.Get("server_group_id").(string)
client := meta.(*connectivity.AliyunClient)
_, err := client.WithSlbClient(func(slbClient *slb.Client) (interface{}, error) {
return slbClient.SetRule(req)
})
if err != nil {
return fmt.Errorf("Modify rule %s server group got an error: %#v", d.Id(), err)
}
d.SetPartial("server_group_id")
}
d.Partial(false)
return resourceAliyunSlbRuleRead(d, meta)
}
func resourceAliyunSlbRuleDelete(d *schema.ResourceData, meta interface{}) error {
client := meta.(*connectivity.AliyunClient)
req := slb.CreateDeleteRulesRequest()
req.RuleIds = fmt.Sprintf("['%s']", d.Id())
return resource.Retry(5*time.Minute, func() *resource.RetryError {
_, err := client.WithSlbClient(func(slbClient *slb.Client) (interface{}, error) {
return slbClient.DeleteRules(req)
})
if err != nil {
if IsExceptedErrors(err, []string{InvalidRuleIdNotFound}) {
return nil
}
return resource.NonRetryableError(err)
}
client := meta.(*connectivity.AliyunClient)
slbService := SlbService{client}
if _, err := slbService.DescribeLoadBalancerRuleAttribute(d.Id()); err != nil {
if NotFoundError(err) {
return nil
}
return resource.NonRetryableError(fmt.Errorf("While deleting rule, DescribeRuleAttribute got an error: %#v", err))
}
return resource.RetryableError(fmt.Errorf("DeleteRule %s timeout.", d.Id()))
})
}