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field_helpers.go
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field_helpers.go
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package google
import (
"fmt"
"regexp"
)
const (
globalLinkTemplate = "projects/%s/global/%s/%s"
globalLinkBasePattern = "projects/(.+)/global/%s/(.+)"
zonalLinkTemplate = "projects/%s/zones/%s/%s/%s"
zonalLinkBasePattern = "projects/(.+)/zones/(.+)/%s/(.+)"
zonalPartialLinkBasePattern = "zones/(.+)/%s/(.+)"
regionalLinkTemplate = "projects/%s/regions/%s/%s/%s"
regionalLinkBasePattern = "projects/(.+)/regions/(.+)/%s/(.+)"
regionalPartialLinkBasePattern = "regions/(.+)/%s/(.+)"
organizationLinkTemplate = "organizations/%s/%s/%s"
organizationBasePattern = "organizations/(.+)/%s/(.+)"
)
// ------------------------------------------------------------
// Field helpers
// ------------------------------------------------------------
func ParseNetworkFieldValue(network string, d TerraformResourceData, config *Config) (*GlobalFieldValue, error) {
return parseGlobalFieldValue("networks", network, "project", d, config, true)
}
func ParseSubnetworkFieldValue(subnetwork string, d TerraformResourceData, config *Config) (*RegionalFieldValue, error) {
return parseRegionalFieldValue("subnetworks", subnetwork, "project", "region", "zone", d, config, true)
}
func ParseSubnetworkFieldValueWithProjectField(subnetwork, projectField string, d TerraformResourceData, config *Config) (*RegionalFieldValue, error) {
return parseRegionalFieldValue("subnetworks", subnetwork, projectField, "region", "zone", d, config, true)
}
func ParseSslCertificateFieldValue(sslCertificate string, d TerraformResourceData, config *Config) (*GlobalFieldValue, error) {
return parseGlobalFieldValue("sslCertificates", sslCertificate, "project", d, config, false)
}
func ParseHttpHealthCheckFieldValue(healthCheck string, d TerraformResourceData, config *Config) (*GlobalFieldValue, error) {
return parseGlobalFieldValue("httpHealthChecks", healthCheck, "project", d, config, false)
}
func ParseDiskFieldValue(disk string, d TerraformResourceData, config *Config) (*ZonalFieldValue, error) {
return parseZonalFieldValue("disks", disk, "project", "zone", d, config, false)
}
func ParseRegionDiskFieldValue(disk string, d TerraformResourceData, config *Config) (*RegionalFieldValue, error) {
return parseRegionalFieldValue("disks", disk, "project", "region", "zone", d, config, false)
}
func ParseOrganizationCustomRoleName(role string) (*OrganizationFieldValue, error) {
return parseOrganizationFieldValue("roles", role, false)
}
func ParseAcceleratorFieldValue(accelerator string, d TerraformResourceData, config *Config) (*ZonalFieldValue, error) {
return parseZonalFieldValue("acceleratorTypes", accelerator, "project", "zone", d, config, false)
}
func ParseMachineTypesFieldValue(machineType string, d TerraformResourceData, config *Config) (*ZonalFieldValue, error) {
return parseZonalFieldValue("machineTypes", machineType, "project", "zone", d, config, false)
}
func ParseInstanceGroupFieldValue(instanceGroup string, d TerraformResourceData, config *Config) (*ZonalFieldValue, error) {
return parseZonalFieldValue("instanceGroups", instanceGroup, "project", "zone", d, config, false)
}
func ParseInstanceTemplateFieldValue(instanceTemplate string, d TerraformResourceData, config *Config) (*GlobalFieldValue, error) {
return parseGlobalFieldValue("instanceTemplates", instanceTemplate, "project", d, config, false)
}
func ParseSecurityPolicyFieldValue(securityPolicy string, d TerraformResourceData, config *Config) (*GlobalFieldValue, error) {
return parseGlobalFieldValue("securityPolicies", securityPolicy, "project", d, config, true)
}
// ------------------------------------------------------------
// Base helpers used to create helpers for specific fields.
// ------------------------------------------------------------
type GlobalFieldValue struct {
Project string
Name string
resourceType string
}
func (f GlobalFieldValue) RelativeLink() string {
if len(f.Name) == 0 {
return ""
}
return fmt.Sprintf(globalLinkTemplate, f.Project, f.resourceType, f.Name)
}
// Parses a global field supporting 5 different formats:
// - https://www.googleapis.com/compute/ANY_VERSION/projects/{my_project}/global/{resource_type}/{resource_name}
// - projects/{my_project}/global/{resource_type}/{resource_name}
// - global/{resource_type}/{resource_name}
// - resource_name
// - "" (empty string). RelativeLink() returns empty if isEmptyValid is true.
//
// If the project is not specified, it first tries to get the project from the `projectSchemaField` and then fallback on the default project.
func parseGlobalFieldValue(resourceType, fieldValue, projectSchemaField string, d TerraformResourceData, config *Config, isEmptyValid bool) (*GlobalFieldValue, error) {
if len(fieldValue) == 0 {
if isEmptyValid {
return &GlobalFieldValue{resourceType: resourceType}, nil
}
return nil, fmt.Errorf("The global field for resource %s cannot be empty", resourceType)
}
r := regexp.MustCompile(fmt.Sprintf(globalLinkBasePattern, resourceType))
if parts := r.FindStringSubmatch(fieldValue); parts != nil {
return &GlobalFieldValue{
Project: parts[1],
Name: parts[2],
resourceType: resourceType,
}, nil
}
project, err := getProjectFromSchema(projectSchemaField, d, config)
if err != nil {
return nil, err
}
return &GlobalFieldValue{
Project: project,
Name: GetResourceNameFromSelfLink(fieldValue),
resourceType: resourceType,
}, nil
}
type ZonalFieldValue struct {
Project string
Zone string
Name string
resourceType string
}
func (f ZonalFieldValue) RelativeLink() string {
if len(f.Name) == 0 {
return ""
}
return fmt.Sprintf(zonalLinkTemplate, f.Project, f.Zone, f.resourceType, f.Name)
}
// Parses a zonal field supporting 5 different formats:
// - https://www.googleapis.com/compute/ANY_VERSION/projects/{my_project}/zones/{zone}/{resource_type}/{resource_name}
// - projects/{my_project}/zones/{zone}/{resource_type}/{resource_name}
// - zones/{zone}/{resource_type}/{resource_name}
// - resource_name
// - "" (empty string). RelativeLink() returns empty if isEmptyValid is true.
//
// If the project is not specified, it first tries to get the project from the `projectSchemaField` and then fallback on the default project.
// If the zone is not specified, it takes the value of `zoneSchemaField`.
func parseZonalFieldValue(resourceType, fieldValue, projectSchemaField, zoneSchemaField string, d TerraformResourceData, config *Config, isEmptyValid bool) (*ZonalFieldValue, error) {
if len(fieldValue) == 0 {
if isEmptyValid {
return &ZonalFieldValue{resourceType: resourceType}, nil
}
return nil, fmt.Errorf("The zonal field for resource %s cannot be empty.", resourceType)
}
r := regexp.MustCompile(fmt.Sprintf(zonalLinkBasePattern, resourceType))
if parts := r.FindStringSubmatch(fieldValue); parts != nil {
return &ZonalFieldValue{
Project: parts[1],
Zone: parts[2],
Name: parts[3],
resourceType: resourceType,
}, nil
}
project, err := getProjectFromSchema(projectSchemaField, d, config)
if err != nil {
return nil, err
}
r = regexp.MustCompile(fmt.Sprintf(zonalPartialLinkBasePattern, resourceType))
if parts := r.FindStringSubmatch(fieldValue); parts != nil {
return &ZonalFieldValue{
Project: project,
Zone: parts[1],
Name: parts[2],
resourceType: resourceType,
}, nil
}
if len(zoneSchemaField) == 0 {
return nil, fmt.Errorf("Invalid field format. Got '%s', expected format '%s'", fieldValue, fmt.Sprintf(globalLinkTemplate, "{project}", resourceType, "{name}"))
}
zone, ok := d.GetOk(zoneSchemaField)
if !ok {
zone = config.Zone
if zone == "" {
return nil, fmt.Errorf("A zone must be specified")
}
}
return &ZonalFieldValue{
Project: project,
Zone: zone.(string),
Name: GetResourceNameFromSelfLink(fieldValue),
resourceType: resourceType,
}, nil
}
func getProjectFromSchema(projectSchemaField string, d TerraformResourceData, config *Config) (string, error) {
res, ok := d.GetOk(projectSchemaField)
if ok && projectSchemaField != "" {
return res.(string), nil
}
if config.Project != "" {
return config.Project, nil
}
return "", fmt.Errorf("%s: required field is not set", projectSchemaField)
}
type OrganizationFieldValue struct {
OrgId string
Name string
resourceType string
}
func (f OrganizationFieldValue) RelativeLink() string {
if len(f.Name) == 0 {
return ""
}
return fmt.Sprintf(organizationLinkTemplate, f.OrgId, f.resourceType, f.Name)
}
// Parses an organization field with the following formats:
// - organizations/{my_organizations}/{resource_type}/{resource_name}
func parseOrganizationFieldValue(resourceType, fieldValue string, isEmptyValid bool) (*OrganizationFieldValue, error) {
if len(fieldValue) == 0 {
if isEmptyValid {
return &OrganizationFieldValue{resourceType: resourceType}, nil
}
return nil, fmt.Errorf("The organization field for resource %s cannot be empty", resourceType)
}
r := regexp.MustCompile(fmt.Sprintf(organizationBasePattern, resourceType))
if parts := r.FindStringSubmatch(fieldValue); parts != nil {
return &OrganizationFieldValue{
OrgId: parts[1],
Name: parts[2],
resourceType: resourceType,
}, nil
}
return nil, fmt.Errorf("Invalid field format. Got '%s', expected format '%s'", fieldValue, fmt.Sprintf(organizationLinkTemplate, "{org_id}", resourceType, "{name}"))
}
type RegionalFieldValue struct {
Project string
Region string
Name string
resourceType string
}
func (f RegionalFieldValue) RelativeLink() string {
if len(f.Name) == 0 {
return ""
}
return fmt.Sprintf(regionalLinkTemplate, f.Project, f.Region, f.resourceType, f.Name)
}
// Parses a regional field supporting 5 different formats:
// - https://www.googleapis.com/compute/ANY_VERSION/projects/{my_project}/regions/{region}/{resource_type}/{resource_name}
// - projects/{my_project}/regions/{region}/{resource_type}/{resource_name}
// - regions/{region}/{resource_type}/{resource_name}
// - resource_name
// - "" (empty string). RelativeLink() returns empty if isEmptyValid is true.
//
// If the project is not specified, it first tries to get the project from the `projectSchemaField` and then fallback on the default project.
// If the region is not specified, see function documentation for `getRegionFromSchema`.
func parseRegionalFieldValue(resourceType, fieldValue, projectSchemaField, regionSchemaField, zoneSchemaField string, d TerraformResourceData, config *Config, isEmptyValid bool) (*RegionalFieldValue, error) {
if len(fieldValue) == 0 {
if isEmptyValid {
return &RegionalFieldValue{resourceType: resourceType}, nil
}
return nil, fmt.Errorf("The regional field for resource %s cannot be empty.", resourceType)
}
r := regexp.MustCompile(fmt.Sprintf(regionalLinkBasePattern, resourceType))
if parts := r.FindStringSubmatch(fieldValue); parts != nil {
return &RegionalFieldValue{
Project: parts[1],
Region: parts[2],
Name: parts[3],
resourceType: resourceType,
}, nil
}
project, err := getProjectFromSchema(projectSchemaField, d, config)
if err != nil {
return nil, err
}
r = regexp.MustCompile(fmt.Sprintf(regionalPartialLinkBasePattern, resourceType))
if parts := r.FindStringSubmatch(fieldValue); parts != nil {
return &RegionalFieldValue{
Project: project,
Region: parts[1],
Name: parts[2],
resourceType: resourceType,
}, nil
}
region, err := getRegionFromSchema(regionSchemaField, zoneSchemaField, d, config)
if err != nil {
return nil, err
}
return &RegionalFieldValue{
Project: project,
Region: region,
Name: GetResourceNameFromSelfLink(fieldValue),
resourceType: resourceType,
}, nil
}
// Infers the region based on the following (in order of priority):
// - `regionSchemaField` in resource schema
// - region extracted from the `zoneSchemaField` in resource schema
// - provider-level region
// - region extracted from the provider-level zone
func getRegionFromSchema(regionSchemaField, zoneSchemaField string, d TerraformResourceData, config *Config) (string, error) {
if v, ok := d.GetOk(regionSchemaField); ok && regionSchemaField != "" {
return GetResourceNameFromSelfLink(v.(string)), nil
}
if v, ok := d.GetOk(zoneSchemaField); ok && zoneSchemaField != "" {
return getRegionFromZone(v.(string)), nil
}
if config.Region != "" {
return config.Region, nil
}
if config.Zone != "" {
return getRegionFromZone(config.Zone), nil
}
return "", fmt.Errorf("Cannot determine region: set in this resource, or set provider-level 'region' or 'zone'.")
}