github.com/recobe182/terraform@v0.8.5-0.20170117231232-49ab22a935b7/builtin/providers/cloudflare/resource_cloudflare_record_migrate.go (about)

     1  package cloudflare
     2  
     3  import (
     4  	"fmt"
     5  	"log"
     6  	"strconv"
     7  
     8  	"github.com/cloudflare/cloudflare-go"
     9  	"github.com/hashicorp/terraform/terraform"
    10  )
    11  
    12  func resourceCloudFlareRecordMigrateState(
    13  	v int, is *terraform.InstanceState, meta interface{}) (*terraform.InstanceState, error) {
    14  	switch v {
    15  	case 0:
    16  		log.Println("[INFO] Found CloudFlare Record State v0; migrating to v1")
    17  		return migrateCloudFlareRecordStateV0toV1(is, meta)
    18  	default:
    19  		return is, fmt.Errorf("Unexpected schema version: %d", v)
    20  	}
    21  }
    22  
    23  func migrateCloudFlareRecordStateV0toV1(is *terraform.InstanceState, meta interface{}) (*terraform.InstanceState, error) {
    24  	if is.Empty() {
    25  		log.Println("[DEBUG] Empty InstanceState; nothing to migrate.")
    26  		return is, nil
    27  	}
    28  
    29  	log.Printf("[DEBUG] Attributes before migration: %#v", is.Attributes)
    30  	client := meta.(*cloudflare.API)
    31  
    32  	// look up new id based on attributes
    33  	domain := is.Attributes["domain"]
    34  	zoneId, err := client.ZoneIDByName(domain)
    35  	if err != nil {
    36  		return is, fmt.Errorf("Error finding zone %q: %s", domain, err)
    37  	}
    38  
    39  	// all other information is ignored in the DNSRecords call
    40  	searchRecord := cloudflare.DNSRecord{
    41  		Type:    is.Attributes["type"],
    42  		Name:    is.Attributes["hostname"],
    43  		Content: is.Attributes["value"],
    44  	}
    45  
    46  	records, err := client.DNSRecords(zoneId, searchRecord)
    47  	if err != nil {
    48  		return is, err
    49  	}
    50  
    51  	for _, r := range records {
    52  		if is.Attributes["ttl"] != "" {
    53  			v, err := strconv.Atoi(is.Attributes["ttl"])
    54  			if err != nil {
    55  				return is, fmt.Errorf("Error converting ttl to int in CloudFlare Record Migration")
    56  			}
    57  
    58  			if v != r.TTL {
    59  				continue
    60  			}
    61  		}
    62  
    63  		if is.Attributes["proxied"] != "" {
    64  			b, err := strconv.ParseBool(is.Attributes["proxied"])
    65  			if err != nil {
    66  				return is, fmt.Errorf("Error converting proxied to bool in CloudFlare Record Migration")
    67  			}
    68  
    69  			if b != r.Proxied {
    70  				continue
    71  			}
    72  		}
    73  
    74  		if is.Attributes["priority"] != "" {
    75  			v, err := strconv.Atoi(is.Attributes["priority"])
    76  			if err != nil {
    77  				return is, fmt.Errorf("Error converting priority to int in CloudFlare Record Migration")
    78  			}
    79  
    80  			if v != r.Priority {
    81  				continue
    82  			}
    83  		}
    84  
    85  		// assume record found
    86  		is.Attributes["id"] = r.ID
    87  		is.ID = r.ID
    88  		log.Printf("[DEBUG] Attributes after migration: %#v", is.Attributes)
    89  		return is, nil
    90  	}
    91  
    92  	// assume no record found
    93  	log.Printf("[DEBUG] Attributes after no migration: %#v", is.Attributes)
    94  	return is, fmt.Errorf("No matching Record found")
    95  }