/
spanner_enable_fine_grained_access.go
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/
spanner_enable_fine_grained_access.go
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// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package spanner
// [START spanner_enable_fine_grained_access]
import (
"context"
"fmt"
"io"
database "cloud.google.com/go/spanner/admin/database/apiv1"
iampb "google.golang.org/genproto/googleapis/iam/v1"
expr "google.golang.org/genproto/googleapis/type/expr"
)
func enableFineGrainedAccess(w io.Writer, db string, iamMember string, databaseRole string, title string) error {
// iamMember = "user:alice@example.com"
// databaseRole = "parent"
// title = "condition title"
ctx := context.Background()
adminClient, err := database.NewDatabaseAdminClient(ctx)
if err != nil {
return err
}
defer adminClient.Close()
policy, err := adminClient.GetIamPolicy(ctx, &iampb.GetIamPolicyRequest{
Resource: db,
Options: &iampb.GetPolicyOptions{
// IAM conditions need at least version 3
RequestedPolicyVersion: 3,
},
})
if err != nil {
return err
}
// IAM conditions need at least version 3
if policy.Version < 3 {
policy.Version = 3
}
policy.Bindings = append(policy.Bindings, []*iampb.Binding{
{
Role: "roles/spanner.fineGrainedAccessUser",
Members: []string{iamMember},
},
{
Role: "roles/spanner.databaseRoleUser",
Members: []string{iamMember},
Condition: &expr.Expr{
Expression: fmt.Sprintf(`resource.name.endsWith("/databaseRoles/%s")`, databaseRole),
Title: title,
},
},
}...)
_, err = adminClient.SetIamPolicy(ctx, &iampb.SetIamPolicyRequest{
Resource: db,
Policy: policy,
})
if err != nil {
return err
}
fmt.Fprintf(w, "Enabled fine-grained access in IAM.\n")
return nil
}
// [END spanner_enable_fine_grained_access]