/
spanner_list_instance_configs.go
64 lines (57 loc) · 1.68 KB
/
spanner_list_instance_configs.go
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// Copyright 2021 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_list_instance_configs]
import (
"context"
"fmt"
"io"
instance "cloud.google.com/go/spanner/admin/instance/apiv1"
"google.golang.org/api/iterator"
instancepb "google.golang.org/genproto/googleapis/spanner/admin/instance/v1"
)
// istInstanceConfigs gets available leader options for all instances
func listInstanceConfigs(w io.Writer, projectName string) error {
// projectName = `projects/<project>
ctx := context.Background()
instanceAdmin, err := instance.NewInstanceAdminClient(ctx)
if err != nil {
return err
}
defer instanceAdmin.Close()
request := &instancepb.ListInstanceConfigsRequest{
Parent: projectName,
}
for {
iter := instanceAdmin.ListInstanceConfigs(ctx, request)
for {
ic, err := iter.Next()
if err == iterator.Done {
break
}
if err != nil {
return err
}
fmt.Fprintf(w, "Available leader options for instance config %s: %v\n", ic.Name, ic.LeaderOptions)
}
pageToken := iter.PageInfo().Token
if pageToken == "" {
break
} else {
request.PageToken = pageToken
}
}
return nil
}
// [END spanner_list_instance_configs]