--- /dev/null
+compute-image-cleaner
--- /dev/null
+
+build:
+ @go build -ldflags "-s -w"
+
+lint:
+ @gofmt -s -w *go
+ @golint
+ @cd config/; golint
+ @golangci-lint run
+ @cd config/; golangci-lint run
+
--- /dev/null
+// Copyright (C) The Azure-Samples Authors. All rights reserved.
+//
+// SPDX-License-Identifier: MIT
+
+// Largely borrowed from
+// https://github.com/Azure-Samples/azure-sdk-for-go-samples/blob/master/internal/iam/authorizers.go
+
+package main
+
+import (
+ "fmt"
+ "log"
+
+ "github.com/arvados/arvados-dev/compute-image-cleaner/config"
+
+ "github.com/Azure/azure-sdk-for-go/services/storage/mgmt/2017-06-01/storage"
+
+ "github.com/Azure/go-autorest/autorest"
+ "github.com/Azure/go-autorest/autorest/adal"
+ "github.com/Azure/go-autorest/autorest/azure/auth"
+)
+
+// OAuthGrantType specifies which grant type to use.
+type OAuthGrantType int
+
+const (
+ // OAuthGrantTypeServicePrincipal for client credentials flow
+ OAuthGrantTypeServicePrincipal OAuthGrantType = iota
+ // OAuthGrantTypeDeviceFlow for device flow
+ OAuthGrantTypeDeviceFlow
+)
+
+var (
+ armAuthorizer autorest.Authorizer
+)
+
+// GrantType returns what grant type has been configured.
+func grantType() OAuthGrantType {
+ if config.UseDeviceFlow() {
+ return OAuthGrantTypeDeviceFlow
+ }
+ return OAuthGrantTypeServicePrincipal
+}
+
+func getAuthorizerForResource(grantType OAuthGrantType, resource string) (autorest.Authorizer, error) {
+ var a autorest.Authorizer
+ var err error
+
+ switch grantType {
+
+ case OAuthGrantTypeServicePrincipal:
+ oauthConfig, err := adal.NewOAuthConfig(
+ config.Environment().ActiveDirectoryEndpoint, config.TenantID())
+ if err != nil {
+ return nil, err
+ }
+
+ token, err := adal.NewServicePrincipalToken(
+ *oauthConfig, config.ClientID(), config.ClientSecret(), resource)
+ if err != nil {
+ return nil, err
+ }
+ a = autorest.NewBearerAuthorizer(token)
+
+ case OAuthGrantTypeDeviceFlow:
+ deviceconfig := auth.NewDeviceFlowConfig(config.ClientID(), config.TenantID())
+ deviceconfig.Resource = resource
+ a, err = deviceconfig.Authorizer()
+ if err != nil {
+ return nil, err
+ }
+
+ default:
+ return a, fmt.Errorf("invalid grant type specified")
+ }
+
+ return a, err
+}
+
+// GetResourceManagementAuthorizer gets an OAuthTokenAuthorizer for Azure Resource Manager
+func GetResourceManagementAuthorizer() (autorest.Authorizer, error) {
+ if armAuthorizer != nil {
+ return armAuthorizer, nil
+ }
+
+ var a autorest.Authorizer
+ var err error
+
+ a, err = getAuthorizerForResource(
+ grantType(), config.Environment().ResourceManagerEndpoint)
+
+ if err == nil {
+ // cache
+ armAuthorizer = a
+ } else {
+ // clear cache
+ armAuthorizer = nil
+ }
+ return armAuthorizer, err
+}
+
+func getStorageAccountsClient() storage.AccountsClient {
+ storageAccountsClient := storage.NewAccountsClient(config.SubscriptionID())
+ auth, err := GetResourceManagementAuthorizer()
+ if err != nil {
+ log.Fatal(err)
+ }
+ storageAccountsClient.Authorizer = auth
+ err = storageAccountsClient.AddToUserAgent("compute-image-cleaner")
+ if err != nil {
+ log.Fatal(err)
+ }
+ return storageAccountsClient
+}
--- /dev/null
+// Copyright (C) The Arvados Authors. All rights reserved.
+//
+// SPDX-License-Identifier: AGPL-3.0
+
+package main
+
+import (
+ "context"
+ "flag"
+ "fmt"
+ "log"
+ "net/url"
+ "os"
+ "regexp"
+ "sort"
+ "time"
+
+ "github.com/arvados/arvados-dev/compute-image-cleaner/config"
+
+ "github.com/Azure/azure-pipeline-go/pipeline"
+ "github.com/Azure/azure-storage-blob-go/azblob"
+
+ "code.cloudfoundry.org/bytefmt"
+)
+
+type blob struct {
+ name string
+ created time.Time
+ contentLength int64
+ deletionCandidate bool
+}
+
+func prepAzBlob(storageKey string, account string, container string) (p pipeline.Pipeline, containerURL azblob.ContainerURL) {
+ // Create a default request pipeline using your storage account name and account key.
+ credential, err := azblob.NewSharedKeyCredential(account, storageKey)
+ if err != nil {
+ log.Fatal("Invalid credentials with error: " + err.Error())
+ }
+ p = azblob.NewPipeline(credential, azblob.PipelineOptions{})
+ // From the Azure portal, get your storage account blob service URL endpoint.
+ URL, _ := url.Parse(fmt.Sprintf("https://%s.blob.core.windows.net/%s", account, container))
+
+ // Create a ContainerURL object that wraps the container URL and a request
+ // pipeline to make requests.
+ containerURL = azblob.NewContainerURL(*URL, p)
+
+ return
+}
+
+func loadBlobs(p pipeline.Pipeline, containerURL azblob.ContainerURL) (blobs []blob, blobNames map[string]*blob) {
+ blobNames = make(map[string]*blob)
+
+ ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+ defer cancel()
+
+ for marker := (azblob.Marker{}); marker.NotDone(); {
+ // Get a result segment starting with the blob indicated by the current Marker.
+ listBlob, err := containerURL.ListBlobsFlatSegment(ctx, marker, azblob.ListBlobsSegmentOptions{})
+ if err != nil {
+ log.Fatal("Error getting blob list: " + err.Error())
+ }
+
+ // ListBlobs returns the start of the next segment; you MUST use this to get
+ // the next segment (after processing the current result segment).
+ marker = listBlob.NextMarker
+
+ // Process the blobs returned in this result segment (if the segment is empty, the loop body won't execute)
+ for _, blobInfo := range listBlob.Segment.BlobItems {
+ blobs = append(blobs, blob{name: blobInfo.Name, created: *blobInfo.Properties.CreationTime, contentLength: *blobInfo.Properties.ContentLength})
+ blobNames[blobInfo.Name] = &blobs[len(blobs)-1]
+ }
+ }
+ sort.Slice(blobs, func(i, j int) bool { return blobs[i].created.After(blobs[j].created) })
+
+ return
+}
+
+func weedBlobs(blobs []blob, blobNames map[string]*blob, containerURL azblob.ContainerURL, account string, container string, doIt bool) {
+ ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+ defer cancel()
+
+ var pairedFileName string
+ skipCount := 10
+ t := time.Now()
+ thirtyDaysAgo := t.AddDate(0, 0, -30)
+
+ // e.g. su92l-compute-osDisk.866eb426-8d1e-45ad-91be-2bb55b5a8147.vhd
+ vhd := regexp.MustCompile(`^(.*)-compute-osDisk\.(.*)\.vhd$`)
+ // e.g. su92l-compute-vmTemplate.866eb426-8d1e-45ad-91be-2bb55b5a8147.json
+ json := regexp.MustCompile(`^(.*)-compute-vmTemplate\.(.*)\.json$`)
+
+ for i, blob := range blobs {
+ matches := vhd.FindStringSubmatch(blob.name)
+ if len(matches) > 1 {
+ // osDisk image file
+ pairedFileName = matches[1] + "-compute-vmTemplate." + matches[2] + ".json"
+ } else {
+ matches := json.FindStringSubmatch(blob.name)
+ if len(matches) > 1 {
+ // vmTemplate file
+ pairedFileName = matches[1] + "-compute-osDisk." + matches[2] + ".vhd"
+ } else {
+ log.Println("Skipping blob because name does not match a known file name pattern:", blob.name, " ", blob.created)
+ continue
+ }
+ }
+ if blob.created.After(thirtyDaysAgo) {
+ log.Println("Skipping blob because it was created less than 30 days ago:", blob.name, " ", blob.created)
+ skipCount = skipCount - 1
+ continue
+ }
+ if skipCount > 0 {
+ log.Println("Skipping blob because it's in the top 10 most recent list:", blob.name, " ", blob.created)
+ skipCount = skipCount - 1
+ continue
+ }
+ if _, ok := blobNames[pairedFileName]; !ok {
+ log.Println("Warning: paired file", pairedFileName, "not found for blob", blob.name, " ", blob.created)
+ }
+ blobs[i].deletionCandidate = true
+ }
+
+ var reclaimedSpace, otherSpace int64
+
+ for _, blob := range blobs {
+ if blob.deletionCandidate {
+ log.Println("Candidate for deletion:", blob.name, " ", blob.created)
+ reclaimedSpace = reclaimedSpace + blob.contentLength
+
+ if doIt {
+ log.Println("Deleting:", blob.name, " ", blob.created)
+ blockBlobURL := containerURL.NewBlockBlobURL(blob.name)
+ result, err := blockBlobURL.Delete(ctx, azblob.DeleteSnapshotsOptionInclude, azblob.BlobAccessConditions{})
+ if err != nil {
+ log.Println(result)
+ log.Fatal("Error deleting blob: ", err.Error(), "\n", result)
+ }
+ }
+ } else {
+ otherSpace = otherSpace + blob.contentLength
+ }
+ }
+
+ if doIt {
+ log.Println("Reclaimed", bytefmt.ByteSize(uint64(reclaimedSpace)), "or", reclaimedSpace, "bytes.")
+ } else {
+ log.Println("Deletion not requested. Able to reclaim", bytefmt.ByteSize(uint64(reclaimedSpace)), "or", reclaimedSpace, "bytes.")
+ }
+ log.Println("Kept", bytefmt.ByteSize(uint64(otherSpace)), "or", otherSpace, "bytes.")
+
+}
+
+func loadStorageAccountKey(resourceGroup string, account string) (key string) {
+ ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+ defer cancel()
+
+ storageClient := getStorageAccountsClient()
+ keys, err := storageClient.ListKeys(ctx, resourceGroup, account)
+ if err != nil {
+ log.Fatal("Error getting storage account key:", err.Error())
+ }
+
+ key = *(*keys.Keys)[0].Value
+
+ return
+}
+
+func validateInputs() (resourceGroup string, account string, container string, doIt bool) {
+ err := config.ParseEnvironment()
+ if err != nil {
+ log.Fatal("Unable to parse environment")
+ }
+
+ if config.ClientID() == "" || config.ClientSecret() == "" || config.TenantID() == "" || config.SubscriptionID() == "" {
+ log.Fatal("Please make sure the environment variables AZURE_CLIENT_ID, AZURE_CLIENT_SECRET, AZURE_TENANT_ID and AZURE_SUBSCRIPTION_ID are set")
+ }
+
+ flags := flag.NewFlagSet("compute-image-cleaner", flag.ExitOnError)
+ flags.StringVar(&resourceGroup, "resourceGroup", "", "Name of the Azure resource group")
+ flags.StringVar(&account, "account", "", "Name of the Azure storage account")
+ flags.StringVar(&container, "container", "", "Name of the container in the Azure storage account")
+ flags.BoolVar(&doIt, "delete", false, "Delete blobs that meet criteria (default: false)")
+ flags.Usage = func() { usage(flags) }
+ err = flags.Parse(os.Args[1:])
+
+ if err != nil || resourceGroup == "" || account == "" || container == "" {
+ usage(flags)
+ os.Exit(1)
+ }
+
+ return
+}
+
+func main() {
+ resourceGroup, account, container, doIt := validateInputs()
+ storageKey := loadStorageAccountKey(resourceGroup, account)
+ p, containerURL := prepAzBlob(storageKey, account, container)
+
+ blobs, blobNames := loadBlobs(p, containerURL)
+ weedBlobs(blobs, blobNames, containerURL, account, container, doIt)
+}
--- /dev/null
+// Copyright (C) The Azure-Samples Authors. All rights reserved.
+//
+// SPDX-License-Identifier: MIT
+
+// Largely borrowed from
+// https://github.com/Azure-Samples/azure-sdk-for-go-samples/tree/master/internal/config
+
+package config
+
+import (
+ "fmt"
+ "os"
+
+ "github.com/Azure/go-autorest/autorest/azure"
+)
+
+var (
+ clientID string
+ clientSecret string
+ tenantID string
+ subscriptionID string
+ cloudName string = "AzurePublicCloud"
+ useDeviceFlow bool
+ environment *azure.Environment
+)
+
+// ClientID is the OAuth client ID.
+func ClientID() string {
+ return clientID
+}
+
+// ClientSecret is the OAuth client secret.
+func ClientSecret() string {
+ return clientSecret
+}
+
+// TenantID is the AAD tenant to which this client belongs.
+func TenantID() string {
+ return tenantID
+}
+
+// SubscriptionID is a target subscription for Azure resources.
+func SubscriptionID() string {
+ return subscriptionID
+}
+
+// UseDeviceFlow specifies if interactive auth should be used. Interactive
+// auth uses the OAuth Device Flow grant type.
+func UseDeviceFlow() bool {
+ return useDeviceFlow
+}
+
+// Environment returns an `azure.Environment{...}` for the current cloud.
+func Environment() *azure.Environment {
+ if environment != nil {
+ return environment
+ }
+ env, err := azure.EnvironmentFromName(cloudName)
+ if err != nil {
+ // TODO: move to initialization of var
+ panic(fmt.Sprintf(
+ "invalid cloud name '%s' specified, cannot continue\n", cloudName))
+ }
+ environment = &env
+ return environment
+}
+
+// ParseEnvironment loads the Azure environment variables for authentication
+func ParseEnvironment() error {
+ // these must be provided by environment
+ // clientID
+ clientID = os.Getenv("AZURE_CLIENT_ID")
+
+ // clientSecret
+ clientSecret = os.Getenv("AZURE_CLIENT_SECRET")
+
+ // tenantID (AAD)
+ tenantID = os.Getenv("AZURE_TENANT_ID")
+
+ // subscriptionID (ARM)
+ subscriptionID = os.Getenv("AZURE_SUBSCRIPTION_ID")
+
+ return nil
+}
--- /dev/null
+module github.com/arvados/arvados-dev/compute-image-cleaner
+
+go 1.14
+
+require (
+ code.cloudfoundry.org/bytefmt v0.0.0-20200131002437-cf55d5288a48
+ github.com/Azure/azure-pipeline-go v0.1.9
+ github.com/Azure/azure-sdk-for-go v42.0.0+incompatible
+ github.com/Azure/azure-storage-blob-go v0.0.0-20181023070848-cf01652132cc
+ github.com/Azure/go-autorest/autorest v0.10.1
+ github.com/Azure/go-autorest/autorest/adal v0.8.2
+ github.com/Azure/go-autorest/autorest/azure/auth v0.4.2
+ github.com/Azure/go-autorest/autorest/validation v0.2.0 // indirect
+ github.com/davecgh/go-spew v1.1.1 // indirect
+ github.com/golang/protobuf v1.3.1 // indirect
+ github.com/kr/pretty v0.1.0 // indirect
+ github.com/onsi/ginkgo v1.12.0 // indirect
+ github.com/onsi/gomega v1.9.0 // indirect
+ github.com/pkg/errors v0.8.1 // indirect
+ github.com/stretchr/testify v1.5.1 // indirect
+ golang.org/x/net v0.0.0-20190520210107-018c4d40a106 // indirect
+ golang.org/x/text v0.3.2 // indirect
+ gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
+)
--- /dev/null
+code.cloudfoundry.org/bytefmt v0.0.0-20200131002437-cf55d5288a48 h1:/EMHruHCFXR9xClkGV/t0rmHrdhX4+trQUcBqjwc9xE=
+code.cloudfoundry.org/bytefmt v0.0.0-20200131002437-cf55d5288a48/go.mod h1:wN/zk7mhREp/oviagqUXY3EwuHhWyOvAdsn5Y4CzOrc=
+github.com/Azure/azure-pipeline-go v0.1.8/go.mod h1:XA1kFWRVhSK+KNFiOhfv83Fv8L9achrP7OxIzeTn1Yg=
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--- /dev/null
+// Copyright (C) The Arvados Authors. All rights reserved.
+//
+// SPDX-License-Identifier: AGPL-3.0
+
+package main
+
+import (
+ "flag"
+ "fmt"
+ "os"
+)
+
+func usage(fs *flag.FlagSet) {
+ fmt.Fprintf(os.Stderr, `
+compute-image-cleaner removes old compute images from the specified storage account/container.
+
+The following environment variables must be set:
+
+ AZURE_TENANT_ID
+ AZURE_SUBSCRIPTION_ID
+ AZURE_CLIENT_ID
+ AZURE_CLIENT_SECRET
+
+For more information about those values and for instructions to create a service principal, see
+https://docs.microsoft.com/en-us/azure/active-directory/develop/howto-create-service-principal-portal
+
+Usage:
+`)
+ fs.PrintDefaults()
+}
projects / arvados-dev.git / commitdiff