2017-09-07 17:38:26 +00:00
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package google
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import (
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"fmt"
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"github.com/hashicorp/terraform/terraform"
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"log"
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2018-02-20 20:40:02 +00:00
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"strings"
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2017-09-07 17:38:26 +00:00
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)
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func resourceComputeAddressMigrateState(v int, is *terraform.InstanceState, meta interface{}) (*terraform.InstanceState, error) {
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if is.Empty() {
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log.Println("[DEBUG] Empty InstanceState; nothing to migrate.")
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return is, nil
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}
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switch v {
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case 0:
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log.Println("[INFO] Found Container Node Pool State v0; migrating to v1")
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return migrateComputeAddressV0toV1(is, meta)
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default:
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return is, fmt.Errorf("Unexpected schema version: %d", v)
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}
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}
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func migrateComputeAddressV0toV1(is *terraform.InstanceState, meta interface{}) (*terraform.InstanceState, error) {
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log.Printf("[DEBUG] Attributes before migration: %#v", is.Attributes)
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log.Printf("[DEBUG] ID before migration: %s", is.ID)
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config := meta.(*Config)
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project, err := getProjectFromInstanceState(is, config)
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if err != nil {
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return is, err
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}
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region, err := getRegionFromInstanceState(is, config)
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if err != nil {
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return is, err
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}
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is.ID = computeAddressId{
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Project: project,
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Region: region,
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Name: is.Attributes["name"],
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}.canonicalId()
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log.Printf("[DEBUG] ID after migration: %s", is.ID)
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return is, nil
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}
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2018-02-20 20:40:02 +00:00
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type computeAddressId struct {
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Project string
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Region string
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Name string
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}
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func (s computeAddressId) canonicalId() string {
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return fmt.Sprintf(computeAddressIdTemplate, s.Project, s.Region, s.Name)
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}
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func parseComputeAddressId(id string, config *Config) (*computeAddressId, error) {
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var parts []string
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if computeAddressLinkRegex.MatchString(id) {
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parts = computeAddressLinkRegex.FindStringSubmatch(id)
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return &computeAddressId{
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Project: parts[1],
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Region: parts[2],
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Name: parts[3],
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}, nil
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} else {
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parts = strings.Split(id, "/")
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}
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if len(parts) == 3 {
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return &computeAddressId{
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Project: parts[0],
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Region: parts[1],
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Name: parts[2],
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}, nil
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} else if len(parts) == 2 {
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// Project is optional.
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if config.Project == "" {
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return nil, fmt.Errorf("The default project for the provider must be set when using the `{region}/{name}` id format.")
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}
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return &computeAddressId{
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Project: config.Project,
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Region: parts[0],
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Name: parts[1],
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}, nil
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} else if len(parts) == 1 {
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// Project and region is optional
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if config.Project == "" {
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return nil, fmt.Errorf("The default project for the provider must be set when using the `{name}` id format.")
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}
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if config.Region == "" {
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return nil, fmt.Errorf("The default region for the provider must be set when using the `{name}` id format.")
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}
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return &computeAddressId{
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Project: config.Project,
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Region: config.Region,
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Name: parts[0],
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}, nil
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}
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return nil, fmt.Errorf("Invalid compute address id. Expecting resource link, `{project}/{region}/{name}`, `{region}/{name}` or `{name}` format.")
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}
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