forked from rook/rook
Travis Nielsen
5254de1a8c
The pools had some legacy structs that translated between the ceph.v1 types used by the CRDs and the internal implementation of the pools. This simplifies the pool implementation by removing the intermediate model and leaving us only with the ceph v1 pool types and no unnecessary translation. Signed-off-by: Travis Nielsen <tnielsen@redhat.com>
342 lines
10 KiB
Go
342 lines
10 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 pool
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import (
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"context"
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"testing"
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"github.com/pkg/errors"
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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/operator/k8sutil"
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"github.com/rook/rook/pkg/clusterd"
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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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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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"k8s.io/client-go/kubernetes/scheme"
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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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func TestValidatePool(t *testing.T) {
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context := &clusterd.Context{Executor: &exectest.MockExecutor{}}
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// not specifying some replication or EC settings is fine
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p := cephv1.CephBlockPool{ObjectMeta: metav1.ObjectMeta{Name: "mypool", Namespace: "myns"}}
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err := ValidatePool(context, &p)
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assert.Nil(t, err)
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// must specify name
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p = cephv1.CephBlockPool{ObjectMeta: metav1.ObjectMeta{Namespace: "myns"}}
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err = ValidatePool(context, &p)
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assert.NotNil(t, err)
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// must specify namespace
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p = cephv1.CephBlockPool{ObjectMeta: metav1.ObjectMeta{Name: "mypool"}}
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err = ValidatePool(context, &p)
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assert.NotNil(t, err)
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// must not specify both replication and EC settings
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p = cephv1.CephBlockPool{ObjectMeta: metav1.ObjectMeta{Name: "mypool", Namespace: "myns"}}
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p.Spec.Replicated.Size = 1
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p.Spec.Replicated.RequireSafeReplicaSize = false
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p.Spec.ErasureCoded.CodingChunks = 2
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p.Spec.ErasureCoded.DataChunks = 3
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err = ValidatePool(context, &p)
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assert.NotNil(t, err)
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// succeed with replication settings
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p = cephv1.CephBlockPool{ObjectMeta: metav1.ObjectMeta{Name: "mypool", Namespace: "myns"}}
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p.Spec.Replicated.Size = 1
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p.Spec.Replicated.RequireSafeReplicaSize = false
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err = ValidatePool(context, &p)
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assert.Nil(t, err)
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// size is 1 and RequireSafeReplicaSize is true
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p = cephv1.CephBlockPool{ObjectMeta: metav1.ObjectMeta{Name: "mypool", Namespace: "myns"}}
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p.Spec.Replicated.Size = 1
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p.Spec.Replicated.RequireSafeReplicaSize = true
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err = ValidatePool(context, &p)
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assert.Error(t, err)
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// succeed with ec settings
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p = cephv1.CephBlockPool{ObjectMeta: metav1.ObjectMeta{Name: "mypool", Namespace: "myns"}}
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p.Spec.ErasureCoded.CodingChunks = 1
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p.Spec.ErasureCoded.DataChunks = 2
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err = ValidatePool(context, &p)
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assert.Nil(t, err)
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}
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func TestValidateCrushProperties(t *testing.T) {
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executor := &exectest.MockExecutor{}
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context := &clusterd.Context{Executor: executor}
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executor.MockExecuteCommandWithOutputFile = func(command, outputFile string, args ...string) (string, error) {
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logger.Infof("Command: %s %v", command, args)
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if args[1] == "crush" && args[2] == "dump" {
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return `{"types":[{"type_id": 0,"name": "osd"}],"buckets":[{"id": -1,"name":"default"},{"id": -2,"name":"good"}]}`, nil
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}
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return "", errors.Errorf("unexpected ceph command %q", args)
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}
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// succeed with a failure domain that exists
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p := &cephv1.CephBlockPool{
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ObjectMeta: metav1.ObjectMeta{Name: "mypool", Namespace: "myns"},
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Spec: cephv1.PoolSpec{
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Replicated: cephv1.ReplicatedSpec{Size: 1, RequireSafeReplicaSize: false},
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FailureDomain: "osd",
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},
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}
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err := ValidatePool(context, p)
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assert.Nil(t, err)
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// fail with a failure domain that doesn't exist
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p.Spec.FailureDomain = "doesntexist"
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err = ValidatePool(context, p)
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assert.NotNil(t, err)
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// fail with a crush root that doesn't exist
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p.Spec.FailureDomain = "osd"
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p.Spec.CrushRoot = "bad"
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err = ValidatePool(context, p)
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assert.NotNil(t, err)
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// fail with a crush root that does exist
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p.Spec.CrushRoot = "good"
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err = ValidatePool(context, p)
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assert.Nil(t, err)
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}
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func TestCreatePool(t *testing.T) {
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executor := &exectest.MockExecutor{
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MockExecuteCommandWithOutputFile: func(command, outfile string, args ...string) (string, error) {
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logger.Infof("Command: %s %v", command, args)
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if command == "ceph" && args[1] == "erasure-code-profile" {
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return `{"k":"2","m":"1","plugin":"jerasure","technique":"reed_sol_van"}`, nil
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}
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return "", nil
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},
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}
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context := &clusterd.Context{Executor: executor}
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p := &cephv1.CephBlockPool{ObjectMeta: metav1.ObjectMeta{Name: "mypool", Namespace: "myns"}}
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p.Spec.Replicated.Size = 1
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p.Spec.Replicated.RequireSafeReplicaSize = false
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err := createPool(context, p)
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assert.Nil(t, err)
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// succeed with EC
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p.Spec.Replicated.Size = 0
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p.Spec.ErasureCoded.CodingChunks = 1
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p.Spec.ErasureCoded.DataChunks = 2
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err = createPool(context, p)
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assert.Nil(t, err)
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}
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func TestDeletePool(t *testing.T) {
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failOnDelete := false
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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 command == "ceph" && args[1] == "lspools" {
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return `[{"poolnum":1,"poolname":"mypool"}]`, nil
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} else if command == "ceph" && args[1] == "pool" && args[2] == "get" {
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return `{"pool": "mypool","pool_id": 1,"size":1}`, nil
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}
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return "", nil
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},
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MockExecuteCommandWithOutput: func(command string, args ...string) (string, error) {
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emptyPool := "{\"images\":{\"count\":0,\"provisioned_bytes\":0,\"snap_count\":0},\"trash\":{\"count\":1,\"provisioned_bytes\":2048,\"snap_count\":0}}"
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p := "{\"images\":{\"count\":1,\"provisioned_bytes\":1024,\"snap_count\":0},\"trash\":{\"count\":1,\"provisioned_bytes\":2048,\"snap_count\":0}}"
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logger.Infof("Command: %s %v", command, args)
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if args[0] == "pool" {
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if args[1] == "stats" {
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if !failOnDelete {
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return emptyPool, nil
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}
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return p, nil
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}
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return "", errors.Errorf("rbd: error opening pool %q: (2) No such file or directory", args[3])
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}
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return "", errors.Errorf("unexpected rbd command %q", args)
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},
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}
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context := &clusterd.Context{Executor: executor}
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// delete a pool that exists
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p := &cephv1.CephBlockPool{ObjectMeta: metav1.ObjectMeta{Name: "mypool", Namespace: "myns"}}
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err := deletePool(context, p)
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assert.Nil(t, err)
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// succeed even if the pool doesn't exist
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p = &cephv1.CephBlockPool{ObjectMeta: metav1.ObjectMeta{Name: "otherpool", Namespace: "myns"}}
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err = deletePool(context, p)
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assert.Nil(t, err)
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// fail if images/snapshosts exist in the pool
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failOnDelete = true
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p = &cephv1.CephBlockPool{ObjectMeta: metav1.ObjectMeta{Name: "mypool", Namespace: "myns"}}
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err = deletePool(context, p)
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assert.NotNil(t, err)
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}
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// TestCephBlockPoolController runs ReconcileCephBlockPool.Reconcile() against a
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// fake client that tracks a CephBlockPool object.
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func TestCephBlockPoolController(t *testing.T) {
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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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var (
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name = "my-pool"
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namespace = "rook-ceph"
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replicas uint = 3
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)
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// A Pool resource with metadata and spec.
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pool := &cephv1.CephBlockPool{
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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.PoolSpec{
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Replicated: cephv1.ReplicatedSpec{
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Size: replicas,
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},
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},
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Status: &cephv1.Status{
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Phase: "",
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},
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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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pool,
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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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return "", nil
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},
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}
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c := &clusterd.Context{
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Executor: executor,
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RookClientset: rookclient.NewSimpleClientset()}
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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, pool)
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// Create a fake client to mock API calls.
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cl := fake.NewFakeClient(object...)
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// Create a ReconcileCephBlockPool object with the scheme and fake client.
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r := &ReconcileCephBlockPool{client: cl, scheme: s, context: c}
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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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// Create pool for updateCephBlockPoolStatus()
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_, err := c.RookClientset.CephV1().CephBlockPools(namespace).Create(pool)
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assert.NoError(t, err)
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res, err := r.Reconcile(req)
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assert.NoError(t, err)
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assert.True(t, res.Requeue)
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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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},
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}
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s.AddKnownTypes(cephv1.SchemeGroupVersion, cephCluster)
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// Create CephCluster for updateCephBlockPoolStatus()
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_, err = c.RookClientset.CephV1().CephClusters(namespace).Create(cephCluster)
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assert.NoError(t, err)
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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.NewFakeClient(object...)
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// Create a ReconcileCephBlockPool object with the scheme and fake client.
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r = &ReconcileCephBlockPool{client: cl, scheme: s, context: c}
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assert.True(t, res.Requeue)
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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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cephCluster.Status.Phase = k8sutil.ReadyStatus
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objects := []runtime.Object{
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pool,
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cephCluster,
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}
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// Create a fake client to mock API calls.
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cl = fake.NewFakeClient(objects...)
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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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return "", nil
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},
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}
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c.Executor = executor
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// Create a ReconcileCephBlockPool object with the scheme and fake client.
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r = &ReconcileCephBlockPool{client: cl, scheme: s, context: c}
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res, err = r.Reconcile(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, pool)
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assert.NoError(t, err)
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assert.Equal(t, "Ready", pool.Status.Phase)
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}
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