mirror of https://github.com/perkeep/perkeep.git
70 lines
2.0 KiB
Go
70 lines
2.0 KiB
Go
/*
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Copyright 2014 The Camlistore Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package mysql
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import (
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"encoding/json"
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"errors"
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"fmt"
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"log"
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"strings"
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"golang.org/x/net/context"
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"golang.org/x/oauth2"
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"golang.org/x/oauth2/google"
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sqladmin "google.golang.org/api/sqladmin/v1beta3"
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"google.golang.org/cloud/compute/metadata"
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)
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const cloudSQLSuffix = ".cloudsql.google.internal"
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func maybeRemapCloudSQL(host string) (out string, err error) {
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if !strings.HasSuffix(host, cloudSQLSuffix) {
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return host, nil
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}
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inst := strings.TrimSuffix(host, cloudSQLSuffix)
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if !metadata.OnGCE() {
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return "", errors.New("CloudSQL support only available when running on Google Compute Engine.")
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}
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proj, err := metadata.ProjectID()
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if err != nil {
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return "", fmt.Errorf("Failed to lookup GCE project ID: %v", err)
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}
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admin, _ := sqladmin.New(oauth2.NewClient(context.Background(), google.ComputeTokenSource("")))
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listRes, err := admin.Instances.List(proj).Do()
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if err != nil {
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return "", fmt.Errorf("error enumerating Cloud SQL instances: %v", err)
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}
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for _, it := range listRes.Items {
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if !strings.EqualFold(it.Instance, inst) {
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continue
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}
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js, _ := json.Marshal(it)
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log.Printf("Found Cloud SQL instance %s: %s", inst, js)
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for _, ipm := range it.IpAddresses {
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return ipm.IpAddress, nil
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}
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return "", fmt.Errorf("No external IP address for Cloud SQL instances %s", inst)
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}
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var found []string
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for _, it := range listRes.Items {
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found = append(found, it.Instance)
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}
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return "", fmt.Errorf("Cloud SQL instance %q not found. Found: %q", inst, found)
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}
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