forked from rook/rook
Sébastien Han
ea1d71cbfb
When the Ceph cluster runs on PVC and the OSDs are encrypted we can store LUKS's Key Encryption Key inside a Key Management System. Today, Rook only supports HashiCorp Vault: https://www.vaultproject.io/ The CephCluster has now a new "security" field which will plug onto the KMS. Here is an example: security: kms: tokenSecretName: <name of the secret containing a Vault token, used to authenticate> connectionDetails: < a map of strings containing connection information> Refer to the ceph-cluster-crd documentation to lear more. Closes: https://github.com/rook/rook/issues/6105 Signed-off-by: Sébastien Han <seb@redhat.com>
77 lines
2.6 KiB
Go
77 lines
2.6 KiB
Go
/*
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Copyright 2020 The Rook Authors. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package osd
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import (
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"os"
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"github.com/pkg/errors"
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v1 "github.com/rook/rook/pkg/apis/ceph.rook.io/v1"
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"github.com/rook/rook/pkg/clusterd"
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cephclient "github.com/rook/rook/pkg/daemon/ceph/client"
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"github.com/rook/rook/pkg/daemon/ceph/osd/kms"
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oposd "github.com/rook/rook/pkg/operator/ceph/cluster/osd"
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)
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const (
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cryptsetupBinary = "cryptsetup"
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dmsetupBinary = "dmsetup"
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)
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func closeEncryptedDevice(context *clusterd.Context, dmName string) error {
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args := []string{"--verbose", "luksClose", dmName}
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cryptsetupOut, err := context.Executor.ExecuteCommandWithCombinedOutput(cryptsetupBinary, args...)
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if err != nil {
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return errors.Wrapf(err, "failed to close encrypted device. %s", cryptsetupOut)
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}
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logger.Infof("dm version:\n%s", cryptsetupOut)
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return nil
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}
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func dmsetupVersion(context *clusterd.Context) error {
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args := []string{"version"}
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dmsetupOut, err := context.Executor.ExecuteCommandWithCombinedOutput(dmsetupBinary, args...)
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if err != nil {
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return errors.Wrapf(err, "failed to find device mapper version. %s", dmsetupOut)
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}
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logger.Info(dmsetupOut)
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return nil
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}
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func setKEKinEnv(context *clusterd.Context, clusterInfo *cephclient.ClusterInfo) error {
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// KMS details are passed by the Operator as env variables in the pod
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// The token if any is mounted in the provisioner pod as an env variable so the secrets lib will pick it up
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kmsConfig := kms.NewConfig(context, &v1.ClusterSpec{Security: v1.SecuritySpec{KeyManagementService: v1.KeyManagementServiceSpec{ConnectionDetails: kms.ConfigEnvsToMapString()}}}, clusterInfo)
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if kmsConfig.IsVault() {
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// Fetch the KEK
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kek, err := kmsConfig.GetSecret(os.Getenv(oposd.PVCNameEnvVarName))
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if err != nil {
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return errors.Wrapf(err, "failed to retrieve key encryption key from %q kms", kmsConfig.Provider)
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}
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// Set the KEK as an env variable for ceph-volume
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err = os.Setenv(oposd.CephVolumeEncryptedKeyEnvVarName, kek)
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if err != nil {
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return errors.Wrap(err, "failed to set key encryption key env variable for ceph-volume")
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}
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}
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return nil
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}
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