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resource_iam_policy.go
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resource_iam_policy.go
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package google
import (
"github.com/hashicorp/terraform/helper/schema"
"encoding/json"
"errors"
"fmt"
"google.golang.org/api/cloudresourcemanager/v1"
"log"
)
var IamPolicyBaseSchema = map[string]*schema.Schema{
"policy_data": {
Type: schema.TypeString,
Required: true,
DiffSuppressFunc: jsonPolicyDiffSuppress,
ValidateFunc: validateIamPolicy,
},
"etag": {
Type: schema.TypeString,
Computed: true,
},
}
func iamPolicyImport(resourceIdParser resourceIdParserFunc) schema.StateFunc {
return func(d *schema.ResourceData, m interface{}) ([]*schema.ResourceData, error) {
if resourceIdParser == nil {
return nil, errors.New("Import not supported for this IAM resource.")
}
config := m.(*Config)
err := resourceIdParser(d, config)
if err != nil {
return nil, err
}
return []*schema.ResourceData{d}, nil
}
}
func ResourceIamPolicy(parentSpecificSchema map[string]*schema.Schema, newUpdaterFunc newResourceIamUpdaterFunc) *schema.Resource {
return &schema.Resource{
Create: ResourceIamPolicyCreate(newUpdaterFunc),
Read: ResourceIamPolicyRead(newUpdaterFunc),
Update: ResourceIamPolicyUpdate(newUpdaterFunc),
Delete: ResourceIamPolicyDelete(newUpdaterFunc),
Schema: mergeSchemas(IamPolicyBaseSchema, parentSpecificSchema),
}
}
func ResourceIamPolicyWithImport(parentSpecificSchema map[string]*schema.Schema, newUpdaterFunc newResourceIamUpdaterFunc, resourceIdParser resourceIdParserFunc) *schema.Resource {
r := ResourceIamPolicy(parentSpecificSchema, newUpdaterFunc)
r.Importer = &schema.ResourceImporter{
State: iamPolicyImport(resourceIdParser),
}
return r
}
func ResourceIamPolicyCreate(newUpdaterFunc newResourceIamUpdaterFunc) schema.CreateFunc {
return func(d *schema.ResourceData, meta interface{}) error {
config := meta.(*Config)
updater, err := newUpdaterFunc(d, config)
if err != nil {
return err
}
if err := setIamPolicyData(d, updater); err != nil {
return err
}
d.SetId(updater.GetResourceId())
return ResourceIamPolicyRead(newUpdaterFunc)(d, meta)
}
}
func ResourceIamPolicyRead(newUpdaterFunc newResourceIamUpdaterFunc) schema.ReadFunc {
return func(d *schema.ResourceData, meta interface{}) error {
config := meta.(*Config)
updater, err := newUpdaterFunc(d, config)
if err != nil {
return err
}
policy, err := updater.GetResourceIamPolicy()
if err != nil {
if isGoogleApiErrorWithCode(err, 404) {
log.Printf("[DEBUG]: Policy does not exist for non-existant resource %q", updater.GetResourceId())
return nil
}
return err
}
d.Set("etag", policy.Etag)
d.Set("policy_data", marshalIamPolicy(policy))
return nil
}
}
func ResourceIamPolicyUpdate(newUpdaterFunc newResourceIamUpdaterFunc) schema.UpdateFunc {
return func(d *schema.ResourceData, meta interface{}) error {
config := meta.(*Config)
updater, err := newUpdaterFunc(d, config)
if err != nil {
return err
}
if d.HasChange("policy_data") {
if err := setIamPolicyData(d, updater); err != nil {
return err
}
}
return ResourceIamPolicyRead(newUpdaterFunc)(d, meta)
}
}
func ResourceIamPolicyDelete(newUpdaterFunc newResourceIamUpdaterFunc) schema.DeleteFunc {
return func(d *schema.ResourceData, meta interface{}) error {
config := meta.(*Config)
updater, err := newUpdaterFunc(d, config)
if err != nil {
return err
}
// Set an empty policy to delete the attached policy.
err = updater.SetResourceIamPolicy(&cloudresourcemanager.Policy{})
if err != nil {
return err
}
return nil
}
}
func setIamPolicyData(d *schema.ResourceData, updater ResourceIamUpdater) error {
policy, err := unmarshalIamPolicy(d.Get("policy_data").(string))
if err != nil {
return fmt.Errorf("'policy_data' is not valid for %s: %s", updater.DescribeResource(), err)
}
err = updater.SetResourceIamPolicy(policy)
if err != nil {
return err
}
return nil
}
func marshalIamPolicy(policy *cloudresourcemanager.Policy) string {
pdBytes, _ := json.Marshal(&cloudresourcemanager.Policy{
Bindings: policy.Bindings,
})
return string(pdBytes)
}
func unmarshalIamPolicy(policyData string) (*cloudresourcemanager.Policy, error) {
policy := &cloudresourcemanager.Policy{}
if err := json.Unmarshal([]byte(policyData), policy); err != nil {
return nil, fmt.Errorf("Could not unmarshal policy data %s:\n%s", policyData, err)
}
return policy, nil
}
func validateIamPolicy(i interface{}, k string) (s []string, es []error) {
_, err := unmarshalIamPolicy(i.(string))
if err != nil {
es = append(es, err)
}
return
}