Documentation

Ark Backup Storage Locations

Backup Storage Location

Ark can store backups in a number of locations. These are represented in the cluster via the BackupStorageLocation CRD.

Ark must have at least one BackupStorageLocation. By default, this is expected to be named default, however the name can be changed by specifying --default-backup-storage-location on ark server. Backups that do not explicitly specify a storage location will be saved to this BackupStorageLocation.

NOTE: BackupStorageLocation takes the place of the Config.backupStorageProvider key as of v0.10.0

A sample YAML BackupStorageLocation looks like the following:

apiVersion: ark.heptio.com/v1
kind: BackupStorageLocation
metadata:
  name: default
  namespace: heptio-ark
spec:
  provider: aws
  objectStorage:
    bucket: myBucket
    config:
      region: us-west-2

Parameter Reference

The configurable parameters are as follows:

Main config parameters

Key Type Default Meaning
provider String (Ark natively supports aws, gcp, and azure. Other providers may be available via external plugins.) Required Field The name for whichever cloud provider will be used to actually store the backups.
objectStorage ObjectStorageLocation Specification of the object storage for the given provider.
objectStorage/bucket String Required Field The storage bucket where backups are to be uploaded.
objectStorage/prefix String Optional Field The directory inside a storage bucket where backups are to be uploaded.
objectStorage/config map[string]string(See the corresponding AWS, GCP, and Azure-specific configs or your provider’s documentation.) None (Optional) Configuration keys/values to be passed to the cloud provider for backup storage.

AWS

(Or other S3-compatible storage)

objectStorage/config
Key Type Default Meaning
region string Empty Example: “us-east-1”See AWS documentation for the full list.Queried from the AWS S3 API if not provided.
s3ForcePathStyle bool false Set this to true if you are using a local storage service like Minio.
s3Url string Required field for non-AWS-hosted storage Example: http://minio:9000You can specify the AWS S3 URL here for explicitness, but Ark can already generate it from region, and bucket. This field is primarily for local storage services like Minio.
publicUrl string Empty Example: https://minio.mycluster.comIf specified, use this instead of s3Url when generating download URLs (e.g., for logs). This field is primarily for local storage services like Minio.
kmsKeyId string Empty Example: “502b409c-4da1-419f-a16e-eif453b3i49f” or “alias/<KMS-Key-Alias-Name>"Specify an [AWS KMS key][10] id or alias to enable encryption of the backups stored in S3. Only works with AWS S3 and may require explicitly granting key usage rights.

Azure

objectStorage/config
Key Type Default Meaning
resourceGroup string Required Field Name of the resource group containing the storage account for this backup storage location.
storageAccount string Required Field Name of the storage account for this backup storage location.

GCP

No parameters required.

Getting Started

To help you get started, see the documentation.