|
| 1 | +/* |
| 2 | +Copyright 2020 The Kubernetes Authors. |
| 3 | +
|
| 4 | +Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | +you may not use this file except in compliance with the License. |
| 6 | +You may obtain a copy of the License at |
| 7 | +
|
| 8 | + http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | +
|
| 10 | +Unless required by applicable law or agreed to in writing, software |
| 11 | +distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | +See the License for the specific language governing permissions and |
| 14 | +limitations under the License. |
| 15 | +*/ |
| 16 | + |
| 17 | +package main |
| 18 | + |
| 19 | +import ( |
| 20 | + "fmt" |
| 21 | + |
| 22 | + "github.com/minio/minio-go" |
| 23 | + "github.com/minio/minio/pkg/auth" |
| 24 | + "github.com/minio/minio/pkg/bucket/policy" |
| 25 | + "github.com/minio/minio/pkg/bucket/policy/condition" |
| 26 | + iampolicy "github.com/minio/minio/pkg/iam/policy" |
| 27 | + "github.com/minio/minio/pkg/madmin" |
| 28 | + |
| 29 | + "golang.org/x/net/context" |
| 30 | + "google.golang.org/grpc/codes" |
| 31 | + "google.golang.org/grpc/status" |
| 32 | + "k8s.io/klog" |
| 33 | + |
| 34 | + cosi "github.com/kubernetes-sigs/container-object-storage-interface-spec" |
| 35 | +) |
| 36 | + |
| 37 | +var ( |
| 38 | + PROVISIONER_NAME = "sample-provisioner.objectstorage.k8s.io" |
| 39 | + VERSION = "dev" |
| 40 | +) |
| 41 | + |
| 42 | +type DriverServer struct { |
| 43 | + Name, Version string |
| 44 | + S3Client *minio.Client |
| 45 | + S3AdminClient *madmin.AdminClient |
| 46 | +} |
| 47 | + |
| 48 | +func (ds *DriverServer) ProvisionerGetInfo(context.Context, *cosi.ProvisionerGetInfoRequest) (*cosi.ProvisionerGetInfoResponse, error) { |
| 49 | + rsp := &cosi.ProvisionerGetInfoResponse{} |
| 50 | + rsp.Name = fmt.Sprintf("%s-%s", ds.Name, ds.Version) |
| 51 | + return rsp, nil |
| 52 | +} |
| 53 | + |
| 54 | +func (ds DriverServer) ProvisionerCreateBucket(ctx context.Context, req *cosi.ProvisionerCreateBucketRequest) (*cosi.ProvisionerCreateBucketResponse, error) { |
| 55 | + klog.Infof("Using minio to create Backend Bucket") |
| 56 | + |
| 57 | + if ds.Name == "" { |
| 58 | + return nil, status.Error(codes.Unavailable, "Driver name not configured") |
| 59 | + } |
| 60 | + |
| 61 | + if ds.Version == "" { |
| 62 | + return nil, status.Error(codes.Unavailable, "Driver is missing version") |
| 63 | + } |
| 64 | + |
| 65 | + err := ds.S3Client.MakeBucket(req.BucketName, "") |
| 66 | + if err != nil { |
| 67 | + // Check to see if the bucket already exists |
| 68 | + exists, errBucketExists := ds.S3Client.BucketExists(req.BucketName) |
| 69 | + if errBucketExists == nil && exists { |
| 70 | + klog.Info("Backend Bucket already exists", req.BucketName) |
| 71 | + return &cosi.ProvisionerCreateBucketResponse{}, nil |
| 72 | + } else { |
| 73 | + klog.Error(err) |
| 74 | + return &cosi.ProvisionerCreateBucketResponse{}, err |
| 75 | + } |
| 76 | + } |
| 77 | + klog.Info("Successfully created Backend Bucket", req.BucketName) |
| 78 | + |
| 79 | + return &cosi.ProvisionerCreateBucketResponse{}, nil |
| 80 | +} |
| 81 | + |
| 82 | +func (ds *DriverServer) ProvisionerDeleteBucket(ctx context.Context, req *cosi.ProvisionerDeleteBucketRequest) (*cosi.ProvisionerDeleteBucketResponse, error) { |
| 83 | + |
| 84 | + if err := ds.S3Client.RemoveBucket(req.BucketName); err != nil { |
| 85 | + klog.Info("failed to delete bucket", req.BucketName) |
| 86 | + return nil, err |
| 87 | + |
| 88 | + } |
| 89 | + return &cosi.ProvisionerDeleteBucketResponse{}, nil |
| 90 | +} |
| 91 | + |
| 92 | +func (ds *DriverServer) ProvisionerGrantBucketAccess(ctx context.Context, req *cosi.ProvisionerGrantBucketAccessRequest) (*cosi.ProvisionerGrantBucketAccessResponse, error) { |
| 93 | + |
| 94 | + creds, err := auth.GetNewCredentials() |
| 95 | + if err != nil { |
| 96 | + klog.Error("failed to generate new credentails") |
| 97 | + return nil, err |
| 98 | + } |
| 99 | + |
| 100 | + if err := ds.S3AdminClient.AddUser(context.Background(), creds.AccessKey, creds.SecretKey); err != nil { |
| 101 | + klog.Error("failed to create user", err) |
| 102 | + return nil, err |
| 103 | + } |
| 104 | + |
| 105 | + // Create policy |
| 106 | + p := iampolicy.Policy{ |
| 107 | + Version: iampolicy.DefaultVersion, |
| 108 | + Statements: []iampolicy.Statement{ |
| 109 | + iampolicy.NewStatement( |
| 110 | + policy.Allow, |
| 111 | + iampolicy.NewActionSet("s3:*"), |
| 112 | + iampolicy.NewResourceSet(iampolicy.NewResource(req.GetBucketName()+"/*", "")), |
| 113 | + condition.NewFunctions(), |
| 114 | + )}, |
| 115 | + } |
| 116 | + |
| 117 | + if err := ds.S3AdminClient.AddCannedPolicy(context.Background(), "s3:*", &p); err != nil { |
| 118 | + klog.Error("failed to add canned policy", err) |
| 119 | + return nil, err |
| 120 | + } |
| 121 | + |
| 122 | + if err := ds.S3AdminClient.SetPolicy(context.Background(), "s3:*", creds.AccessKey, false); err != nil { |
| 123 | + klog.Error("failed to set policy", err) |
| 124 | + return nil, err |
| 125 | + } |
| 126 | + |
| 127 | + return &cosi.ProvisionerGrantBucketAccessResponse{ |
| 128 | + Principal: req.Principal, |
| 129 | + CredentialsFileContents: fmt.Sprintf("[default]\naws_access_key %s\naws_secret_key %s", creds.AccessKey, creds.SecretKey), |
| 130 | + CredentialsFilePath: ".aws/credentials", |
| 131 | + }, nil |
| 132 | +} |
| 133 | + |
| 134 | +func (ds *DriverServer) ProvisionerRevokeBucketAccess(ctx context.Context, req *cosi.ProvisionerRevokeBucketAccessRequest) (*cosi.ProvisionerRevokeBucketAccessResponse, error) { |
| 135 | + |
| 136 | + // revokes user access to bucket |
| 137 | + if err := ds.S3AdminClient.RemoveUser(ctx, req.GetPrincipal()); err != nil { |
| 138 | + klog.Error("falied to Revoke Bucket Access") |
| 139 | + return nil, err |
| 140 | + } |
| 141 | + return &cosi.ProvisionerRevokeBucketAccessResponse{}, nil |
| 142 | +} |
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