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c829e3a13b
With this change, MinIO's ILM supports transitioning objects to a remote tier. This change includes support for Azure Blob Storage, AWS S3 compatible object storage incl. MinIO and Google Cloud Storage as remote tier storage backends. Some new additions include: - Admin APIs remote tier configuration management - Simple journal to track remote objects to be 'collected' This is used by object API handlers which 'mutate' object versions by overwriting/replacing content (Put/CopyObject) or removing the version itself (e.g DeleteObjectVersion). - Rework of previous ILM transition to fit the new model In the new model, a storage class (a.k.a remote tier) is defined by the 'remote' object storage type (one of s3, azure, GCS), bucket name and a prefix. * Fixed bugs, review comments, and more unit-tests - Leverage inline small object feature - Migrate legacy objects to the latest object format before transitioning - Fix restore to particular version if specified - Extend SharedDataDirCount to handle transitioned and restored objects - Restore-object should accept version-id for version-suspended bucket (#12091) - Check if remote tier creds have sufficient permissions - Bonus minor fixes to existing error messages Co-authored-by: Poorna Krishnamoorthy <poorna@minio.io> Co-authored-by: Krishna Srinivas <krishna@minio.io> Signed-off-by: Harshavardhana <harsha@minio.io>
100 lines
2.9 KiB
Go
100 lines
2.9 KiB
Go
// Copyright (c) 2015-2021 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package madmin
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import (
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"encoding/base64"
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)
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//go:generate msgp -file $GOFILE
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// TierGCS represents the remote tier configuration for Google Cloud Storage
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type TierGCS struct {
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Endpoint string `json:",omitempty"` // custom endpoint is not supported for GCS
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Creds string `json:",omitempty"` // base64 encoding of credentials.json
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Bucket string `json:",omitempty"`
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Prefix string `json:",omitempty"`
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Region string `json:",omitempty"`
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StorageClass string `json:",omitempty"`
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}
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// GCSOptions supports NewTierGCS to take variadic options
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type GCSOptions func(*TierGCS) error
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// GCSPrefix helper to supply optional object prefix to NewTierGCS
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func GCSPrefix(prefix string) func(*TierGCS) error {
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return func(gcs *TierGCS) error {
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gcs.Prefix = prefix
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return nil
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}
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}
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// GCSRegion helper to supply optional region to NewTierGCS
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func GCSRegion(region string) func(*TierGCS) error {
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return func(gcs *TierGCS) error {
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gcs.Region = region
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return nil
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}
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}
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// GCSStorageClass helper to supply optional storage class to NewTierGCS
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func GCSStorageClass(sc string) func(*TierGCS) error {
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return func(gcs *TierGCS) error {
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gcs.StorageClass = sc
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return nil
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}
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}
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// GetCredentialJSON method returns the credentials JSON bytes.
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func (gcs *TierGCS) GetCredentialJSON() ([]byte, error) {
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return base64.URLEncoding.DecodeString(gcs.Creds)
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}
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// NewTierGCS returns a TierConfig of GCS type. Returns error if the given
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// parameters are invalid like name is empty etc.
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func NewTierGCS(name string, credsJSON []byte, bucket string, options ...GCSOptions) (*TierConfig, error) {
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if name == "" {
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return nil, ErrTierNameEmpty
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}
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creds := base64.URLEncoding.EncodeToString(credsJSON)
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gcs := &TierGCS{
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Creds: creds,
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Bucket: bucket,
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// Defaults
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// endpoint is meant only for client-side display purposes
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Endpoint: "https://storage.googleapis.com/",
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Prefix: "",
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Region: "",
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StorageClass: "",
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}
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for _, option := range options {
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err := option(gcs)
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if err != nil {
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return nil, err
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}
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}
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return &TierConfig{
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Version: TierConfigV1,
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Type: GCS,
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Name: name,
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GCS: gcs,
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}, nil
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}
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