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iam_binding.go
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iam_binding.go
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package yandex
import (
"fmt"
"log"
"strings"
"github.com/hashicorp/terraform/helper/schema"
"google.golang.org/grpc/codes"
"github.com/yandex-cloud/go-genproto/yandex/cloud/access"
)
var accessBindingSchema = map[string]*schema.Schema{
"role": {
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"members": {
Type: schema.TypeSet,
Required: true,
Elem: &schema.Schema{
Type: schema.TypeString,
ValidateFunc: validateIamMember,
},
},
}
func resourceAccessBinding(parentSpecificSchema map[string]*schema.Schema, newUpdaterFunc newResourceIamUpdaterFunc) *schema.Resource {
return &schema.Resource{
Create: resourceAccessBindingCreate(newUpdaterFunc),
Read: resourceAccessBindingRead(newUpdaterFunc),
Update: resourceAccessBindingUpdate(newUpdaterFunc),
Delete: resourceAccessBindingDelete(newUpdaterFunc),
Schema: mergeSchemas(accessBindingSchema, parentSpecificSchema),
}
}
//
func resourceIamBindingWithImport(parentSpecificSchema map[string]*schema.Schema, newUpdaterFunc newResourceIamUpdaterFunc, resourceIDParser resourceIDParserFunc) *schema.Resource {
r := resourceAccessBinding(parentSpecificSchema, newUpdaterFunc)
r.Importer = &schema.ResourceImporter{
State: iamBindingImport(resourceIDParser),
}
return r
}
func resourceAccessBindingCreate(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
}
p := getResourceIamBindings(d)
err = iamPolicyReadModifyWrite(updater, func(ep *Policy) error {
// Creating a binding does not remove existing members if they are not in the provided members list.
// This prevents removing existing permission without the user's knowledge.
// Instead, a diff is shown in that case after creation. Subsequent calls to update will remove any
// existing members not present in the provided list.
ep.Bindings = mergeBindings(append(ep.Bindings, p...))
return nil
})
if err != nil {
return err
}
role := p[0].RoleId
d.SetId(updater.GetResourceID() + "/" + role)
return resourceAccessBindingRead(newUpdaterFunc)(d, meta)
}
}
func resourceAccessBindingRead(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
}
role := d.Get("role").(string)
eBindings := getResourceIamBindings(d)
p, err := updater.GetResourceIamPolicy()
if err != nil {
if isStatusWithCode(err, codes.NotFound) {
log.Printf("[DEBUG]: Binding for role %q not found for non-existent resource %s, removing from state file.", role, updater.DescribeResource())
d.SetId("")
return nil
}
return err
}
log.Printf("[DEBUG]: Retrieved policy for %s: %+v", updater.DescribeResource(), p)
var mBindings []*access.AccessBinding
for _, b := range p.Bindings {
if b.RoleId != role {
continue
}
if len(eBindings) != 0 {
for _, e := range eBindings {
if canonicalMember(e) != canonicalMember(b) {
continue
}
mBindings = append(mBindings, b)
}
} else {
mBindings = append(mBindings, b)
}
}
if len(mBindings) == 0 {
log.Printf("[DEBUG]: Binding for role %q not found in policy for %s, removing from state file.", role, updater.DescribeResource())
d.SetId("")
return nil
}
if err := d.Set("members", roleToMembersList(role, mBindings)); err != nil {
return err
}
d.Set("role", role)
return nil
}
}
func resourceAccessBindingUpdate(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
}
bindings := getResourceIamBindings(d)
role := d.Get("role").(string)
err = iamPolicyReadModifyWrite(updater, func(p *Policy) error {
p.Bindings = removeRoleFromBindings(role, p.Bindings)
p.Bindings = append(p.Bindings, bindings...)
return nil
})
if err != nil {
return err
}
return resourceAccessBindingRead(newUpdaterFunc)(d, meta)
}
}
func resourceAccessBindingDelete(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
}
binding := getResourceIamBindings(d)
role := binding[0].RoleId
err = iamPolicyReadModifyWrite(updater, func(p *Policy) error {
p.Bindings = removeRoleFromBindings(role, p.Bindings)
return nil
})
if err != nil {
if isStatusWithCode(err, codes.NotFound) {
log.Printf("[DEBUG]: Resource %s is missing or deleted, marking policy binding as deleted", updater.DescribeResource())
return nil
}
return err
}
return resourceAccessBindingRead(newUpdaterFunc)(d, meta)
}
}
func iamBindingImport(resourceIDParser resourceIDParserFunc) schema.StateFunc {
return func(d *schema.ResourceData, m interface{}) ([]*schema.ResourceData, error) {
if resourceIDParser == nil {
return nil, fmt.Errorf("Import not supported for this IAM resource")
}
config := m.(*Config)
s := strings.Fields(d.Id())
if len(s) != 2 {
d.SetId("")
return nil, fmt.Errorf("Wrong number of parts to Binding id %s; expected 'resource_name role'", s)
}
id, roleID := s[0], s[1]
// Set the ID only to the first part so all IAM types can share the same resourceIDParserFunc.
d.SetId(id)
d.Set("role", roleID)
err := resourceIDParser(d, config)
if err != nil {
return nil, err
}
// Set the ID again so that the ID matches the ID it would have if it had been created via TF.
// Use the current ID in case it changed in the resourceIDParserFunc.
d.SetId(d.Id() + "/" + roleID)
return []*schema.ResourceData{d}, nil
}
}
// all bindings use same Role
func getResourceIamBindings(d *schema.ResourceData) []*access.AccessBinding {
members := d.Get("members").(*schema.Set)
role := d.Get("role").(string)
result := make([]*access.AccessBinding, members.Len())
for i, member := range convertStringSet(members) {
result[i] = roleMemberToAccessBinding(role, member)
}
return result
}