restic

package
v0.9.0 Latest Latest
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 Go to latest Published: Jul 6, 2018 License: Apache-2.0 Imports: 27 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	DaemonSet                   = "restic"
	InitContainer               = "restic-wait"
	DefaultMaintenanceFrequency = 24 * time.Hour
)
View Source 
const (
	CredentialsSecretName = "ark-restic-credentials"
	CredentialsKey        = "repository-password"
)

Variables

This section is empty.

Functions

func EnsureCommonRepositoryKey 

func EnsureCommonRepositoryKey(secretClient corev1client.SecretsGetter, namespace string) error

func GetPodSnapshotAnnotations 

func GetPodSnapshotAnnotations(obj metav1.Object) map[string]string

GetPodSnapshotAnnotations returns a map, of volume name -> snapshot id, of all restic snapshots for this pod.

func GetRepoIdentifier 

func GetRepoIdentifier(config arkv1api.ObjectStorageProviderConfig, name string) string

GetRepoIdentifier returns the string to be used as the value of the --repo flag in restic commands for the given repository.

func GetRepositoryKey 

func GetRepositoryKey(secretGetter SecretGetter, namespace string) ([]byte, error)

func GetSnapshotID 

func GetSnapshotID(repoIdentifier, passwordFile string, tags map[string]string) (string, error)

GetSnapshotID runs a 'restic snapshots' command to get the ID of the snapshot in the specified repo matching the set of provided tags, or an error if a unique snapshot cannot be identified.

func GetVolumesToBackup 

func GetVolumesToBackup(obj metav1.Object) []string

GetVolumesToBackup returns a list of volume names to backup for the provided pod.

func NewPodVolumeBackupListOptions 

func NewPodVolumeBackupListOptions(name, uid string) metav1.ListOptions

NewPodVolumeBackupListOptions creates a ListOptions with a label selector configured to find PodVolumeBackups for the backup identified by name and uid.

func NewPodVolumeRestoreListOptions 

func NewPodVolumeRestoreListOptions(name, uid string) metav1.ListOptions

NewPodVolumeRestoreListOptions creates a ListOptions with a label selector configured to find PodVolumeRestores for the restore identified by name and uid.

func PodHasSnapshotAnnotation 

func PodHasSnapshotAnnotation(obj metav1.Object) bool

PodHasSnapshotAnnotation returns true if the object has an annotation indicating that there is a restic snapshot for a volume in this pod, or false otherwise.

func SetPodSnapshotAnnotation 

func SetPodSnapshotAnnotation(obj metav1.Object, volumeName, snapshotID string)

SetPodSnapshotAnnotation adds an annotation to a pod to indicate that the specified volume has a restic snapshot with the provided id.

func TempCredentialsFile 

func TempCredentialsFile(secretLister corev1listers.SecretLister, arkNamespace, repoName string, fs filesystem.Interface) (string, error)

TempCredentialsFile creates a temp file containing a restic encryption key for the given repo and returns its path. The caller should generally call os.Remove() to remove the file when done with it.

Types

type BackendType 

type BackendType string
const (
	AWSBackend   BackendType = "aws"
	AzureBackend BackendType = "azure"
	GCPBackend   BackendType = "gcp"
)

type Backupper 

type Backupper interface {
	// BackupPodVolumes backs up all annotated volumes in a pod.
	BackupPodVolumes(backup *arkv1api.Backup, pod *corev1api.Pod, log logrus.FieldLogger) (map[string]string, []error)
}

Backupper can execute restic backups of volumes in a pod.

type BackupperFactory 

type BackupperFactory interface {
	// NewBackupper returns a restic backupper for use during a single
	// Ark backup.
	NewBackupper(context.Context, *arkv1api.Backup) (Backupper, error)
}

BackupperFactory can construct restic backuppers.

type Command 

type Command struct {
	Command        string
	RepoIdentifier string
	PasswordFile   string
	Dir            string
	Args           []string
	ExtraFlags     []string
}

Command represents a restic command.

func BackupCommand 

func BackupCommand(repoIdentifier, passwordFile, path string, tags map[string]string) *Command

BackupCommand returns a Command for running a restic backup.

func CheckCommand 

func CheckCommand(repoIdentifier string) *Command

func ForgetCommand 

func ForgetCommand(repoIdentifier, snapshotID string) *Command

func GetSnapshotCommand 

func GetSnapshotCommand(repoIdentifier, passwordFile string, tags map[string]string) *Command

GetSnapshotCommand returns a Command for running a restic (get) snapshots.

func InitCommand 

func InitCommand(repoIdentifier string) *Command

func PruneCommand 

func PruneCommand(repoIdentifier string) *Command

func RestoreCommand 

func RestoreCommand(repoIdentifier, passwordFile, snapshotID, target string) *Command

RestoreCommand returns a Command for running a restic restore.

func (*Command) Cmd 

func (c *Command) Cmd() *exec.Cmd

Cmd returns an exec.Cmd for the command.

func (*Command) RepoName 

func (c *Command) RepoName() string

func (*Command) String 

func (c *Command) String() string

String returns the command as a string.

func (*Command) StringSlice 

func (c *Command) StringSlice() []string

StringSlice returns the command as a slice of strings.

type RepositoryManager 

type RepositoryManager interface {
	// InitRepo initializes a repo with the specified name and identifier.
	InitRepo(name, identifier string) error

	// CheckRepo checks the specified repo for errors.
	CheckRepo(name, identifier string) error

	// PruneRepo deletes unused data from a repo.
	PruneRepo(name, identifier string) error

	// Forget removes a snapshot from the list of
	// available snapshots in a repo.
	Forget(context.Context, SnapshotIdentifier) error

	BackupperFactory

	RestorerFactory
}

RepositoryManager executes commands against restic repositories.

func NewRepositoryManager 

func NewRepositoryManager(
	ctx context.Context,
	namespace string,
	arkClient clientset.Interface,
	secretsInformer cache.SharedIndexInformer,
	repoInformer arkv1informers.ResticRepositoryInformer,
	repoClient arkv1client.ResticRepositoriesGetter,
	log logrus.FieldLogger,
) (RepositoryManager, error)

NewRepositoryManager constructs a RepositoryManager.

type Restorer 

type Restorer interface {
	// RestorePodVolumes restores all annotated volumes in a pod.
	RestorePodVolumes(restore *arkv1api.Restore, pod *corev1api.Pod, log logrus.FieldLogger) []error
}

Restorer can execute restic restores of volumes in a pod.

type RestorerFactory 

type RestorerFactory interface {
	// NewRestorer returns a restic restorer for use during a single
	// Ark restore.
	NewRestorer(context.Context, *arkv1api.Restore) (Restorer, error)
}

RestorerFactory can construct restic restorers.

type SecretGetter 

type SecretGetter interface {
	GetSecret(namespace, name string) (*corev1api.Secret, error)
}

func NewClientSecretGetter 

func NewClientSecretGetter(client corev1client.SecretsGetter) SecretGetter

func NewListerSecretGetter 

func NewListerSecretGetter(lister corev1listers.SecretLister) SecretGetter

type SnapshotIdentifier 

type SnapshotIdentifier struct {
	// Repo is the name of the restic repository where the
	// snapshot is located
	Repo string

	// SnapshotID is the short ID of the restic snapshot
	SnapshotID string
}

SnapshotIdentifier uniquely identifies a restic snapshot taken by Ark.

func GetSnapshotsInBackup 

func GetSnapshotsInBackup(backup *arkv1api.Backup, podVolumeBackupLister arkv1listers.PodVolumeBackupLister) ([]SnapshotIdentifier, error)

GetSnapshotsInBackup returns a list of all restic snapshot ids associated with a given Ark backup.

Source Files

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