forked from rook/rook
Sébastien Han
b578f916e7
Similarly to block volume replication, Ceph is capable of replicating the
content of a Ceph Filesystem from one cluster to another.
For this, during the 1.6 cycle, we introduced a new CRD called
CephFilesystemMirror which effectively deploys a cephfs-mirror daemon.
However, configuring peers to enable replication between two clusters
had to be done manually.
Also various bug fix made it in Ceph eventually and the minimum required
version for this to work is to run on Ceph Pacific 16.2.5 at least.
So the automatic configuration of Ceph Filesystem peers is now possible.
By editing the CephFilesystem CRD, you can now turn on mirroring:
```yaml
mirroring:
enabled: false
# list of Kubernetes Secrets containing the peer token
# for more details see: https://docs.ceph.com/en/latest/dev/cephfs-mirroring/#bootstrap-peers
peers:
secretNames:
- secondary-cluster-peer
```
Also, the mirroring status is displayed in the CR status:
```
status:
info:
fsMirrorBootstrapPeerSecretName: fs-peer-token-myfs
mirroringStatus:
daemonsStatus:
- daemon_id: 4186
filesystems:
- filesystem_id: 2
name: myfs
lastChecked: "2021-07-01T14:16:29Z"
phase: Ready
snapshotScheduleStatus:
lastChecked: "2021-07-01T14:16:29Z"
snapshotSchedules:
- fs: myfs
path: /
rel_path: /
retention: {}
schedule: 24h
```
Closes: https://github.com/rook/rook/issues/7063
Signed-off-by: Sébastien Han <seb@redhat.com>
311 lines
8.1 KiB
Go
311 lines
8.1 KiB
Go
/*
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Copyright 2016 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 file to manage a rook filesystem
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package file
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import (
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"context"
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"os"
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"testing"
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"github.com/coreos/pkg/capnslog"
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cephv1 "github.com/rook/rook/pkg/apis/ceph.rook.io/v1"
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rookclient "github.com/rook/rook/pkg/client/clientset/versioned/fake"
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"github.com/rook/rook/pkg/client/clientset/versioned/scheme"
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"github.com/rook/rook/pkg/clusterd"
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"github.com/rook/rook/pkg/operator/k8sutil"
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"github.com/rook/rook/pkg/operator/test"
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exectest "github.com/rook/rook/pkg/util/exec/test"
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"github.com/stretchr/testify/assert"
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v1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/types"
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"sigs.k8s.io/controller-runtime/pkg/client/fake"
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"sigs.k8s.io/controller-runtime/pkg/reconcile"
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)
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const (
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fsGet = `{
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"mdsmap":{
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"epoch":49,
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"flags":50,
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"ever_allowed_features":32,
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"explicitly_allowed_features":32,
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"created":"2020-03-17 13:17:43.743717",
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"modified":"2020-03-17 15:22:51.020576",
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"tableserver":0,
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"root":0,
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"session_timeout":60,
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"session_autoclose":300,
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"min_compat_client":"-1 (unspecified)",
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"max_file_size":1099511627776,
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"last_failure":0,
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"last_failure_osd_epoch":0,
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"compat":{
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"compat":{
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},
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"ro_compat":{
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},
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"incompat":{
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"feature_1":"base v0.20",
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"feature_2":"client writeable ranges",
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"feature_3":"default file layouts on dirs",
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"feature_4":"dir inode in separate object",
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"feature_5":"mds uses versioned encoding",
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"feature_6":"dirfrag is stored in omap",
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"feature_8":"no anchor table",
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"feature_9":"file layout v2",
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"feature_10":"snaprealm v2"
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}
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},
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"max_mds":1,
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"in":[
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0
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],
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"up":{
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"mds_0":4463
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},
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"failed":[
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],
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"damaged":[
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],
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"stopped":[
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],
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"info":{
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"gid_4463":{
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"gid":4463,
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"name":"myfs-a",
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"rank":0,
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"incarnation":5,
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"state":"up:active",
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"state_seq":3,
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"addr":"172.17.0.12:6801/175789278",
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"addrs":{
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"addrvec":[
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{
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"type":"v2",
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"addr":"172.17.0.12:6800",
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"nonce":175789278
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},
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{
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"type":"v1",
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"addr":"172.17.0.12:6801",
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"nonce":175789278
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}
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]
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},
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"export_targets":[
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],
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"features":4611087854031667199,
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"flags":0
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}
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},
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"data_pools":[
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3
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],
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"metadata_pool":2,
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"enabled":true,
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"fs_name":"myfs",
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"balancer":"",
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"standby_count_wanted":1
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},
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"id":1
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}`
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mdsCephAuthGetOrCreateKey = `{"key":"AQCvzWBeIV9lFRAAninzm+8XFxbSfTiPwoX50g=="}`
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dummyVersionsRaw = `
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{
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"mon": {
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"ceph version 14.2.8 (3a54b2b6d167d4a2a19e003a705696d4fe619afc) nautilus (stable)": 3
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}
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}`
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)
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var (
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name = "my-fs"
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namespace = "rook-ceph"
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)
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func TestCephFilesystemController(t *testing.T) {
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ctx := context.TODO()
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// Set DEBUG logging
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capnslog.SetGlobalLogLevel(capnslog.DEBUG)
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os.Setenv("ROOK_LOG_LEVEL", "DEBUG")
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//
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// TEST 1 SETUP
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//
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// FAILURE because no CephCluster
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//
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// A Pool resource with metadata and spec.
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fs := &cephv1.CephFilesystem{
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ObjectMeta: metav1.ObjectMeta{
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Name: name,
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Namespace: namespace,
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},
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Spec: cephv1.FilesystemSpec{
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MetadataServer: cephv1.MetadataServerSpec{
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ActiveCount: 1,
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},
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},
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TypeMeta: controllerTypeMeta,
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}
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// Objects to track in the fake client.
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object := []runtime.Object{
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fs,
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}
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executor := &exectest.MockExecutor{
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MockExecuteCommandWithOutputFile: func(command, outfile string, args ...string) (string, error) {
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if args[0] == "status" {
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return `{"fsid":"c47cac40-9bee-4d52-823b-ccd803ba5bfe","health":{"checks":{},"status":"HEALTH_ERR"},"pgmap":{"num_pgs":100,"pgs_by_state":[{"state_name":"active+clean","count":100}]}}`, nil
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}
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if args[0] == "versions" {
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return dummyVersionsRaw, nil
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}
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return "", nil
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},
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}
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clientset := test.New(t, 3)
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c := &clusterd.Context{
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Executor: executor,
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RookClientset: rookclient.NewSimpleClientset(),
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Clientset: clientset,
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}
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// Register operator types with the runtime scheme.
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s := scheme.Scheme
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s.AddKnownTypes(cephv1.SchemeGroupVersion, &cephv1.CephObjectStore{})
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s.AddKnownTypes(cephv1.SchemeGroupVersion, &cephv1.CephCluster{})
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// Create a fake client to mock API calls.
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cl := fake.NewClientBuilder().WithScheme(s).WithRuntimeObjects(object...).Build()
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// Create a ReconcileCephFilesystem object with the scheme and fake client.
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r := &ReconcileCephFilesystem{client: cl, scheme: s, context: c, fsChannels: make(map[string]*fsHealth)}
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// Mock request to simulate Reconcile() being called on an event for a
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// watched resource .
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req := reconcile.Request{
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NamespacedName: types.NamespacedName{
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Name: name,
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Namespace: namespace,
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},
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}
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logger.Info("STARTING PHASE 1")
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res, err := r.Reconcile(ctx, req)
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assert.NoError(t, err)
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assert.True(t, res.Requeue)
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logger.Info("PHASE 1 DONE")
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//
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// TEST 2:
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//
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// FAILURE we have a cluster but it's not ready
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//
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cephCluster := &cephv1.CephCluster{
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ObjectMeta: metav1.ObjectMeta{
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Name: namespace,
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Namespace: namespace,
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},
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Status: cephv1.ClusterStatus{
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Phase: "",
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CephStatus: &cephv1.CephStatus{
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Health: "",
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},
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},
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}
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object = append(object, cephCluster)
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// Create a fake client to mock API calls.
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cl = fake.NewClientBuilder().WithScheme(s).WithRuntimeObjects(object...).Build()
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// Create a ReconcileCephFilesystem object with the scheme and fake client.
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r = &ReconcileCephFilesystem{client: cl, scheme: s, context: c}
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logger.Info("STARTING PHASE 2")
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res, err = r.Reconcile(ctx, req)
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assert.NoError(t, err)
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assert.True(t, res.Requeue)
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logger.Info("PHASE 2 DONE")
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//
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// TEST 3:
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//
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// SUCCESS! The CephCluster is ready
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//
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// Mock clusterInfo
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secrets := map[string][]byte{
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"fsid": []byte(name),
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"mon-secret": []byte("monsecret"),
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"admin-secret": []byte("adminsecret"),
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}
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secret := &v1.Secret{
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ObjectMeta: metav1.ObjectMeta{
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Name: "rook-ceph-mon",
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Namespace: namespace,
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},
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Data: secrets,
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Type: k8sutil.RookType,
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}
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_, err = c.Clientset.CoreV1().Secrets(namespace).Create(ctx, secret, metav1.CreateOptions{})
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assert.NoError(t, err)
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// Add ready status to the CephCluster
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cephCluster.Status.Phase = k8sutil.ReadyStatus
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cephCluster.Status.CephStatus.Health = "HEALTH_OK"
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// Create a fake client to mock API calls.
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cl = fake.NewClientBuilder().WithScheme(s).WithRuntimeObjects(object...).Build()
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executor = &exectest.MockExecutor{
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MockExecuteCommandWithOutputFile: func(command, outfile string, args ...string) (string, error) {
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if args[0] == "status" {
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return `{"fsid":"c47cac40-9bee-4d52-823b-ccd803ba5bfe","health":{"checks":{},"status":"HEALTH_OK"},"pgmap":{"num_pgs":100,"pgs_by_state":[{"state_name":"active+clean","count":100}]}}`, nil
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}
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if args[0] == "fs" && args[1] == "get" {
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return fsGet, nil
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}
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if args[0] == "auth" && args[1] == "get-or-create-key" {
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return mdsCephAuthGetOrCreateKey, nil
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}
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if args[0] == "versions" {
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return dummyVersionsRaw, nil
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}
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return "", nil
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},
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}
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c.Executor = executor
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// Create a ReconcileCephFilesystem object with the scheme and fake client.
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r = &ReconcileCephFilesystem{client: cl, scheme: s, context: c, fsChannels: make(map[string]*fsHealth)}
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logger.Info("STARTING PHASE 3")
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res, err = r.Reconcile(ctx, req)
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assert.NoError(t, err)
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assert.False(t, res.Requeue)
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err = r.client.Get(context.TODO(), req.NamespacedName, fs)
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assert.NoError(t, err)
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assert.Equal(t, cephv1.ConditionType("Ready"), fs.Status.Phase, fs)
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logger.Info("PHASE 3 DONE")
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}
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