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ipam_pool_cidr.go
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ipam_pool_cidr.go
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package ec2
import (
"fmt"
"log"
"strings"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/hashicorp/aws-sdk-go-base/v2/awsv1shim/v2/tfawserr"
"github.com/hashicorp/terraform-plugin-sdk/v2/helper/resource"
"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
"github.com/hashicorp/terraform-plugin-sdk/v2/helper/validation"
"github.com/hashicorp/terraform-provider-aws/internal/conns"
"github.com/hashicorp/terraform-provider-aws/internal/verify"
)
func ResourceIPAMPoolCIDR() *schema.Resource {
return &schema.Resource{
Create: resourceIPAMPoolCIDRCreate,
Read: resourceIPAMPoolCIDRRead,
Delete: resourceIPAMPoolCIDRDelete,
Importer: &schema.ResourceImporter{
State: schema.ImportStatePassthrough,
},
Schema: map[string]*schema.Schema{
"cidr": {
Type: schema.TypeString,
Optional: true,
ForceNew: true,
Computed: true,
ValidateFunc: validation.Any(
verify.ValidIPv4CIDRNetworkAddress,
verify.ValidIPv6CIDRNetworkAddress,
),
},
"cidr_authorization_context": {
Type: schema.TypeList,
Optional: true,
ForceNew: true,
MaxItems: 1,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"message": {
Type: schema.TypeString,
Optional: true,
ForceNew: true,
},
"signature": {
Type: schema.TypeString,
Optional: true,
ForceNew: true,
},
},
},
},
"ipam_pool_id": {
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
},
}
}
const (
ipamPoolCIDRCreateTimeout = 10 * time.Minute
// allocations releases are eventually consistent with a max time of 20m
ipamPoolCIDRDeleteTimeout = 32 * time.Minute
ipamPoolCIDRAvailableDelay = 5 * time.Second
ipamPoolCIDRDeleteDelay = 5 * time.Second
)
func resourceIPAMPoolCIDRCreate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*conns.AWSClient).EC2Conn
pool_id := d.Get("ipam_pool_id").(string)
input := &ec2.ProvisionIpamPoolCidrInput{
IpamPoolId: aws.String(pool_id),
}
if v, ok := d.GetOk("cidr_authorization_context"); ok {
input.CidrAuthorizationContext = expandIPAMPoolCIDRCIDRAuthorizationContext(v.([]interface{}))
}
if v, ok := d.GetOk("cidr"); ok {
input.Cidr = aws.String(v.(string))
}
log.Printf("[DEBUG] Provisioning IPAM Pool Cidr: %s", input)
output, err := conn.ProvisionIpamPoolCidr(input)
if err != nil {
return fmt.Errorf("Error provisioning ipam pool cidr in ipam pool (%s): %w", d.Get("ipam_pool_id").(string), err)
}
cidr := aws.StringValue(output.IpamPoolCidr.Cidr)
id := encodeIPAMPoolCIDRId(cidr, pool_id)
if _, err = WaitIPAMPoolCIDRAvailable(conn, id, ipamPoolCIDRCreateTimeout); err != nil {
return fmt.Errorf("error waiting for IPAM Pool Cidr (%s) to be provision: %w", id, err)
}
d.SetId(id)
return resourceIPAMPoolCIDRRead(d, meta)
}
func resourceIPAMPoolCIDRRead(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*conns.AWSClient).EC2Conn
cidr, pool_id, err := FindIPAMPoolCIDR(conn, d.Id())
if err != nil {
return err
}
if !d.IsNewResource() && cidr == nil {
log.Printf("[WARN] IPAM Pool Cidr (%s) not found or was deprovisioned, removing from state", cidr)
d.SetId("")
return nil
}
if aws.StringValue(cidr.State) == ec2.IpamPoolCidrStateDeprovisioned {
log.Printf("[WARN] IPAM Pool Cidr (%s) not found or was deprovisioned, removing from state", cidr)
d.SetId("")
return nil
}
d.Set("cidr", cidr.Cidr)
// pool id is not returned in describe, adding from concatenated id
d.Set("ipam_pool_id", pool_id)
return nil
}
func resourceIPAMPoolCIDRDelete(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*conns.AWSClient).EC2Conn
cidr, pool_id, err := DecodeIPAMPoolCIDRID(d.Id())
input := &ec2.DeprovisionIpamPoolCidrInput{
Cidr: aws.String(cidr),
IpamPoolId: aws.String(pool_id),
}
return resource.Retry(ipamPoolCIDRDeleteTimeout, func() *resource.RetryError {
log.Printf("[DEBUG] Deprovisioning IPAM Pool Cidr: %s", input)
// releasing allocations is eventually consistent and can cause deprovisioning to fail
_, err = conn.DeprovisionIpamPoolCidr(input)
if err != nil {
// IncorrectState err can mean: State = "deprovisioned" || State = "pending-deprovision"
if tfawserr.ErrCodeEquals(err, "IncorrectState") {
output, err := WaitIPAMPoolCIDRDeleted(conn, d.Id(), ipamPoolCIDRDeleteTimeout)
if err != nil {
// State = failed-deprovision
return resource.RetryableError(fmt.Errorf("Expected cidr to be deprovisioned but was in state %s", aws.StringValue(output.State)))
}
// State = deprovisioned
return nil
}
return resource.NonRetryableError(fmt.Errorf("error deprovisioning ipam pool cidr: (%s): %w", cidr, err))
}
output, err := WaitIPAMPoolCIDRDeleted(conn, d.Id(), ipamPoolCIDRDeleteTimeout)
if err != nil {
// State = failed-deprovision
return resource.RetryableError(fmt.Errorf("Expected cidr to be deprovisioned but was in state %s", aws.StringValue(output.State)))
}
// State = deprovisioned
return nil
})
}
func FindIPAMPoolCIDR(conn *ec2.EC2, id string) (*ec2.IpamPoolCidr, string, error) {
cidr_block, pool_id, err := DecodeIPAMPoolCIDRID(id)
if err != nil {
return nil, "", fmt.Errorf("error decoding ID (%s): %w", cidr_block, err)
}
input := &ec2.GetIpamPoolCidrsInput{
IpamPoolId: aws.String(pool_id),
Filters: []*ec2.Filter{
{
Name: aws.String("cidr"),
Values: aws.StringSlice([]string{cidr_block}),
},
},
}
output, err := conn.GetIpamPoolCidrs(input)
if err != nil {
return nil, "", err
}
if output == nil || len(output.IpamPoolCidrs) == 0 || output.IpamPoolCidrs[0] == nil {
return nil, "", nil
}
return output.IpamPoolCidrs[0], pool_id, nil
}
func WaitIPAMPoolCIDRAvailable(conn *ec2.EC2, id string, timeout time.Duration) (*ec2.IpamPoolCidr, error) {
stateConf := &resource.StateChangeConf{
Pending: []string{ec2.IpamPoolCidrStatePendingProvision},
Target: []string{ec2.IpamPoolCidrStateProvisioned},
Refresh: statusIPAMPoolCIDRStatus(conn, id),
Timeout: timeout,
Delay: ipamPoolCIDRAvailableDelay,
}
outputRaw, err := stateConf.WaitForState()
if output, ok := outputRaw.(*ec2.IpamPoolCidr); ok {
return output, err
}
return nil, err
}
func WaitIPAMPoolCIDRDeleted(conn *ec2.EC2, id string, timeout time.Duration) (*ec2.IpamPoolCidr, error) {
stateConf := &resource.StateChangeConf{
Pending: []string{ec2.IpamPoolCidrStatePendingDeprovision, ec2.IpamPoolCidrStateProvisioned},
Target: []string{ec2.IpamPoolCidrStateDeprovisioned},
Refresh: statusIPAMPoolCIDRStatus(conn, id),
Timeout: timeout,
Delay: ipamPoolCIDRDeleteDelay,
}
outputRaw, err := stateConf.WaitForState()
if output, ok := outputRaw.(*ec2.IpamPoolCidr); ok {
return output, err
}
return nil, err
}
func statusIPAMPoolCIDRStatus(conn *ec2.EC2, id string) resource.StateRefreshFunc {
return func() (interface{}, string, error) {
output, _, err := FindIPAMPoolCIDR(conn, id)
// there was an unhandled error in the Finder
if err != nil {
return nil, "", err
}
return output, aws.StringValue(output.State), nil
}
}
func encodeIPAMPoolCIDRId(cidr, pool_id string) string {
return fmt.Sprintf("%s_%s", cidr, pool_id)
}
func DecodeIPAMPoolCIDRID(id string) (string, string, error) {
idParts := strings.Split(id, "_")
if len(idParts) != 2 || idParts[0] == "" || idParts[1] == "" {
return "", "", fmt.Errorf("expected ID in the form of cidr_poolId, given: %q", id)
}
return idParts[0], idParts[1], nil
}
func expandIPAMPoolCIDRCIDRAuthorizationContext(l []interface{}) *ec2.IpamCidrAuthorizationContext {
if len(l) == 0 || l[0] == nil {
return nil
}
m := l[0].(map[string]interface{})
cac := &ec2.IpamCidrAuthorizationContext{
Message: aws.String(m["message"].(string)),
Signature: aws.String(m["signature"].(string)),
}
return cac
}