k3s/vendor/k8s.io/legacy-cloud-providers/azure/azure_storageaccount.go

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// +build !providerless
/*
Copyright 2016 The Kubernetes Authors.
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
http://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 azure
import (
"fmt"
"strings"
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"github.com/Azure/azure-sdk-for-go/services/storage/mgmt/2019-06-01/storage"
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"k8s.io/klog/v2"
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)
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// AccountOptions contains the fields which are used to create storage account.
type AccountOptions struct {
Name, Type, Kind, ResourceGroup, Location string
EnableHTTPSTrafficOnly bool
Tags map[string]string
}
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type accountWithLocation struct {
Name, StorageType, Location string
}
// getStorageAccounts gets name, type, location of all storage accounts in a resource group which matches matchingAccountType, matchingLocation
func (az *Cloud) getStorageAccounts(matchingAccountType, matchingAccountKind, resourceGroup, matchingLocation string) ([]accountWithLocation, error) {
ctx, cancel := getContextWithCancel()
defer cancel()
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result, rerr := az.StorageAccountClient.ListByResourceGroup(ctx, resourceGroup)
if rerr != nil {
return nil, rerr.Error()
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}
accounts := []accountWithLocation{}
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for _, acct := range result {
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if acct.Name != nil && acct.Location != nil && acct.Sku != nil {
storageType := string((*acct.Sku).Name)
if matchingAccountType != "" && !strings.EqualFold(matchingAccountType, storageType) {
continue
}
if matchingAccountKind != "" && !strings.EqualFold(matchingAccountKind, string(acct.Kind)) {
continue
}
location := *acct.Location
if matchingLocation != "" && !strings.EqualFold(matchingLocation, location) {
continue
}
accounts = append(accounts, accountWithLocation{Name: *acct.Name, StorageType: storageType, Location: location})
}
}
return accounts, nil
}
// GetStorageAccesskey gets the storage account access key
func (az *Cloud) GetStorageAccesskey(account, resourceGroup string) (string, error) {
ctx, cancel := getContextWithCancel()
defer cancel()
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result, rerr := az.StorageAccountClient.ListKeys(ctx, resourceGroup, account)
if rerr != nil {
return "", rerr.Error()
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}
if result.Keys == nil {
return "", fmt.Errorf("empty keys")
}
for _, k := range *result.Keys {
if k.Value != nil && *k.Value != "" {
v := *k.Value
if ind := strings.LastIndex(v, " "); ind >= 0 {
v = v[(ind + 1):]
}
return v, nil
}
}
return "", fmt.Errorf("no valid keys")
}
// EnsureStorageAccount search storage account, create one storage account(with genAccountNamePrefix) if not found, return accountName, accountKey
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func (az *Cloud) EnsureStorageAccount(accountOptions *AccountOptions, genAccountNamePrefix string) (string, string, error) {
if accountOptions == nil {
return "", "", fmt.Errorf("account options is nil")
}
accountName := accountOptions.Name
accountType := accountOptions.Type
accountKind := accountOptions.Kind
resourceGroup := accountOptions.ResourceGroup
location := accountOptions.Location
enableHTTPSTrafficOnly := accountOptions.EnableHTTPSTrafficOnly
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if len(accountName) == 0 {
// find a storage account that matches accountType
accounts, err := az.getStorageAccounts(accountType, accountKind, resourceGroup, location)
if err != nil {
return "", "", fmt.Errorf("could not list storage accounts for account type %s: %v", accountType, err)
}
if len(accounts) > 0 {
accountName = accounts[0].Name
klog.V(4).Infof("found a matching account %s type %s location %s", accounts[0].Name, accounts[0].StorageType, accounts[0].Location)
}
if len(accountName) == 0 {
// not found a matching account, now create a new account in current resource group
accountName = generateStorageAccountName(genAccountNamePrefix)
if location == "" {
location = az.Location
}
if accountType == "" {
accountType = defaultStorageAccountType
}
// use StorageV2 by default per https://docs.microsoft.com/en-us/azure/storage/common/storage-account-options
kind := defaultStorageAccountKind
if accountKind != "" {
kind = storage.Kind(accountKind)
}
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if len(accountOptions.Tags) == 0 {
accountOptions.Tags = make(map[string]string)
}
accountOptions.Tags["created-by"] = "azure"
tags := convertMaptoMapPointer(accountOptions.Tags)
klog.V(2).Infof("azure - no matching account found, begin to create a new account %s in resource group %s, location: %s, accountType: %s, accountKind: %s, tags: %+v",
accountName, resourceGroup, location, accountType, kind, accountOptions.Tags)
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cp := storage.AccountCreateParameters{
Sku: &storage.Sku{Name: storage.SkuName(accountType)},
Kind: kind,
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AccountPropertiesCreateParameters: &storage.AccountPropertiesCreateParameters{EnableHTTPSTrafficOnly: &enableHTTPSTrafficOnly},
Tags: tags,
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Location: &location}
ctx, cancel := getContextWithCancel()
defer cancel()
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rerr := az.StorageAccountClient.Create(ctx, resourceGroup, accountName, cp)
if rerr != nil {
return "", "", fmt.Errorf(fmt.Sprintf("Failed to create storage account %s, error: %v", accountName, rerr))
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}
}
}
// find the access key with this account
accountKey, err := az.GetStorageAccesskey(accountName, resourceGroup)
if err != nil {
return "", "", fmt.Errorf("could not get storage key for storage account %s: %v", accountName, err)
}
return accountName, accountKey, nil
}