forked from rook/rook
Sébastien Han
8c8c48e0ac
By exporting cluster to Cluster we can now reach it from the controller health check so that it can be populated with 'cluster' data, see the next commit for better understanding. Signed-off-by: Sébastien Han <seb@redhat.com>
533 lines
16 KiB
Go
533 lines
16 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 mon
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import (
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"strings"
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"sync"
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"testing"
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cephv1 "github.com/rook/rook/pkg/apis/ceph.rook.io/v1"
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rookalpha "github.com/rook/rook/pkg/apis/rook.io/v1alpha2"
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"github.com/rook/rook/pkg/clusterd"
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cephver "github.com/rook/rook/pkg/operator/ceph/version"
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"github.com/rook/rook/pkg/operator/test"
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"github.com/stretchr/testify/assert"
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v1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/api/resource"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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func TestGetNodeMonUsageValidNode(t *testing.T) {
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clientset := test.New(2)
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c := New(&clusterd.Context{Clientset: clientset}, "ns", "", false, metav1.OwnerReference{}, &sync.Mutex{})
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setCommonMonProperties(c, 0, cephv1.MonSpec{Count: 3, AllowMultiplePerNode: true}, "myversion")
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node, err := clientset.CoreV1().Nodes().Get("node0", metav1.GetOptions{})
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assert.NoError(t, err)
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assert.NotNil(t, node)
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conditions := v1.NodeCondition{Type: v1.NodeOutOfDisk}
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node.Status = v1.NodeStatus{Conditions: []v1.NodeCondition{conditions}}
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clientset.CoreV1().Nodes().Update(node)
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// nodes are reported with correct valid flag
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nodeZones, err := c.getNodeMonUsage()
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assert.NoError(t, err)
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assert.False(t, nodeZones[0][0].MonValid)
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assert.True(t, nodeZones[0][1].MonValid)
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}
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func TestGetNodeMonUsageMonCount(t *testing.T) {
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clientset := test.New(2)
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c := New(&clusterd.Context{Clientset: clientset}, "ns", "", false, metav1.OwnerReference{}, &sync.Mutex{})
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setCommonMonProperties(c, 0, cephv1.MonSpec{Count: 3, AllowMultiplePerNode: true}, "myversion")
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// 3 mons on node0
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node, err := clientset.CoreV1().Nodes().Get("node0", metav1.GetOptions{})
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assert.NoError(t, err)
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assert.NotNil(t, node)
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monIDs := []string{"a", "b", "c"}
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for i := 0; i < 3; i++ {
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pod := c.makeMonPod(testGenMonConfig(monIDs[i]), node.Name)
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_, err = clientset.CoreV1().Pods(c.Namespace).Create(pod)
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assert.Nil(t, err)
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}
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// 2 mons on node1
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node, err = clientset.CoreV1().Nodes().Get("node1", metav1.GetOptions{})
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assert.NoError(t, err)
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assert.NotNil(t, node)
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monIDs = []string{"d", "e"}
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for i := 0; i < 2; i++ {
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pod := c.makeMonPod(testGenMonConfig(monIDs[i]), node.Name)
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_, err = clientset.CoreV1().Pods(c.Namespace).Create(pod)
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assert.Nil(t, err)
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}
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nodeZones, err := c.getNodeMonUsage()
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assert.NoError(t, err)
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assert.Equal(t, 1, len(nodeZones))
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if nodeZones[0][0].Node.Name == "node0" {
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assert.Equal(t, 3, nodeZones[0][0].MonCount)
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assert.Equal(t, 2, nodeZones[0][1].MonCount)
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} else {
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assert.Equal(t, 2, nodeZones[0][1].MonCount)
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assert.Equal(t, 3, nodeZones[0][0].MonCount)
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}
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}
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func TestTaintedNodes(t *testing.T) {
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clientset := test.New(4)
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c := New(&clusterd.Context{Clientset: clientset}, "ns", "", false, metav1.OwnerReference{}, &sync.Mutex{})
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setCommonMonProperties(c, 0, cephv1.MonSpec{Count: 3, AllowMultiplePerNode: true}, "myversion")
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// mark a node as unschedulable
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node, err := clientset.CoreV1().Nodes().Get("node0", metav1.GetOptions{})
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assert.NoError(t, err)
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assert.NotNil(t, node)
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node.Spec.Unschedulable = true
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clientset.CoreV1().Nodes().Update(node)
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// taint
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node, err = clientset.CoreV1().Nodes().Get("node1", metav1.GetOptions{})
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assert.NoError(t, err)
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assert.NotNil(t, node)
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node.Spec.Taints = []v1.Taint{
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{Effect: v1.TaintEffectNoSchedule},
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}
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clientset.CoreV1().Nodes().Update(node)
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// taint
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node, err = clientset.CoreV1().Nodes().Get("node2", metav1.GetOptions{})
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assert.NoError(t, err)
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assert.NotNil(t, node)
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node.Spec.Taints = []v1.Taint{
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{Effect: v1.TaintEffectPreferNoSchedule},
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}
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clientset.CoreV1().Nodes().Update(node)
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nodeZones, err := c.getNodeMonUsage()
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assert.NoError(t, err)
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assert.Equal(t, 1, len(nodeZones))
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validCount := 0
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for zi := range nodeZones {
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for ni := range nodeZones[zi] {
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if nodeZones[zi][ni].MonValid {
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validCount++
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}
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}
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}
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assert.Equal(t, 1, validCount)
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}
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func TestNodeAffinity(t *testing.T) {
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clientset := test.New(4)
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c := New(&clusterd.Context{Clientset: clientset}, "ns", "", false, metav1.OwnerReference{}, &sync.Mutex{})
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setCommonMonProperties(c, 0, cephv1.MonSpec{Count: 3, AllowMultiplePerNode: true}, "myversion")
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c.spec.Placement = map[rookalpha.KeyType]rookalpha.Placement{}
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c.spec.Placement[cephv1.KeyMon] = rookalpha.Placement{NodeAffinity: &v1.NodeAffinity{
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RequiredDuringSchedulingIgnoredDuringExecution: &v1.NodeSelector{
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NodeSelectorTerms: []v1.NodeSelectorTerm{
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{
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MatchExpressions: []v1.NodeSelectorRequirement{
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{
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Key: "label",
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Operator: v1.NodeSelectorOpIn,
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Values: []string{"bar", "baz"},
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},
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},
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},
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},
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},
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},
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}
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// label nodes so they appear as not scheduable / invalid
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node, err := clientset.CoreV1().Nodes().Get("node0", metav1.GetOptions{})
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node.Labels = map[string]string{"label": "foo"}
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clientset.CoreV1().Nodes().Update(node)
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node, err = clientset.CoreV1().Nodes().Get("node1", metav1.GetOptions{})
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node.Labels = map[string]string{"label": "bar"}
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clientset.CoreV1().Nodes().Update(node)
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node, err = clientset.CoreV1().Nodes().Get("node2", metav1.GetOptions{})
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node.Labels = map[string]string{"label": "baz"}
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clientset.CoreV1().Nodes().Update(node)
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nodeZones, err := c.getNodeMonUsage()
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assert.NoError(t, err)
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assert.Equal(t, 1, len(nodeZones))
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validCount := 0
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for zi := range nodeZones {
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for ni := range nodeZones[zi] {
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if nodeZones[zi][ni].MonValid {
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validCount++
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}
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}
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}
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assert.Equal(t, 2, validCount)
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}
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// this tests can 3 mons with hostnetworking on the same host is rejected
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func TestHostNetworkSameNode(t *testing.T) {
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namespace := "ns"
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context := newTestStartCluster(namespace)
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// cluster host networking
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c := newCluster(context, namespace, true, true, v1.ResourceRequirements{})
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c.ClusterInfo = test.CreateConfigDir(1)
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// start a basic cluster
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_, err := c.Start(c.ClusterInfo, c.rookVersion, cephver.Mimic, c.spec)
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assert.Error(t, err)
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}
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func TestPodMemory(t *testing.T) {
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namespace := "ns"
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context := newTestStartCluster(namespace)
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// Test memory limit alone
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r := v1.ResourceRequirements{
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Limits: v1.ResourceList{
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v1.ResourceMemory: *resource.NewQuantity(536870912, resource.BinarySI), // size in Bytes
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},
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}
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c := newCluster(context, namespace, false, true, r)
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c.ClusterInfo = test.CreateConfigDir(1)
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// start a basic cluster
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_, err := c.Start(c.ClusterInfo, c.rookVersion, cephver.Mimic, c.spec)
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assert.Error(t, err)
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// Test REQUEST == LIMIT
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r = v1.ResourceRequirements{
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Limits: v1.ResourceList{
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v1.ResourceMemory: *resource.NewQuantity(536870912, resource.BinarySI), // size in Bytes
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},
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Requests: v1.ResourceList{
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v1.ResourceMemory: *resource.NewQuantity(536870912, resource.BinarySI), // size in Bytes
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},
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}
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c = newCluster(context, namespace, false, true, r)
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c.ClusterInfo = test.CreateConfigDir(1)
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// start a basic cluster
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_, err = c.Start(c.ClusterInfo, c.rookVersion, cephver.Mimic, c.spec)
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assert.Error(t, err)
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// Test LIMIT != REQUEST but obviously LIMIT > REQUEST
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r = v1.ResourceRequirements{
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Limits: v1.ResourceList{
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v1.ResourceMemory: *resource.NewQuantity(536870912, resource.BinarySI), // size in Bytes
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},
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Requests: v1.ResourceList{
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v1.ResourceMemory: *resource.NewQuantity(236870912, resource.BinarySI), // size in Bytes
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},
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}
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c = newCluster(context, namespace, false, true, r)
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c.ClusterInfo = test.CreateConfigDir(1)
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// start a basic cluster
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_, err = c.Start(c.ClusterInfo, c.rookVersion, cephver.Mimic, c.spec)
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assert.Error(t, err)
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// Test valid case where pod resource is set approprietly
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r = v1.ResourceRequirements{
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Limits: v1.ResourceList{
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v1.ResourceMemory: *resource.NewQuantity(1073741824, resource.BinarySI), // size in Bytes
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},
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Requests: v1.ResourceList{
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v1.ResourceMemory: *resource.NewQuantity(236870912, resource.BinarySI), // size in Bytes
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},
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}
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c = newCluster(context, namespace, false, true, r)
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c.ClusterInfo = test.CreateConfigDir(1)
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// start a basic cluster
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_, err = c.Start(c.ClusterInfo, c.rookVersion, cephver.Mimic, c.spec)
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assert.Nil(t, err)
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// Test no resources were specified on the pod
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r = v1.ResourceRequirements{}
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c = newCluster(context, namespace, false, true, r)
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c.ClusterInfo = test.CreateConfigDir(1)
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// start a basic cluster
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_, err = c.Start(c.ClusterInfo, c.rookVersion, cephver.Mimic, c.spec)
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assert.Nil(t, err)
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}
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func TestHostNetwork(t *testing.T) {
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clientset := test.New(3)
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c := New(&clusterd.Context{Clientset: clientset}, "ns", "", false, metav1.OwnerReference{}, &sync.Mutex{})
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setCommonMonProperties(c, 0, cephv1.MonSpec{Count: 3, AllowMultiplePerNode: true}, "myversion")
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c.HostNetwork = true
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nodes := []v1.Node{}
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nodeZones, err := c.getNodeMonUsage()
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assert.Nil(t, err)
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for zi := range nodeZones {
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for _, nodeUsage := range nodeZones[zi] {
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if nodeUsage.MonCount == 0 || c.spec.Mon.AllowMultiplePerNode {
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nodes = append(nodes, *nodeUsage.Node)
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}
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}
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}
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assert.Equal(t, 3, len(nodes))
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monConfig := testGenMonConfig("c")
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pod := c.makeMonPod(monConfig, nodes[2].Name)
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assert.NotNil(t, pod)
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assert.Equal(t, true, pod.Spec.HostNetwork)
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assert.Equal(t, v1.DNSClusterFirstWithHostNet, pod.Spec.DNSPolicy)
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val, message := extractArgValue(pod.Spec.Containers[0].Args, "--public-addr")
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assert.Equal(t, "2.4.6.3", val, message)
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val, message = extractArgValue(pod.Spec.Containers[0].Args, "--public-bind-addr")
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assert.Equal(t, "", val)
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assert.Equal(t, "arg not found: --public-bind-addr", message)
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monConfig.Port = 6790
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pod = c.makeMonPod(monConfig, nodes[2].Name)
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val, message = extractArgValue(pod.Spec.Containers[0].Args, "--public-addr")
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assert.Equal(t, "2.4.6.3:6790", val, message)
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assert.NotNil(t, pod)
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}
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func extractArgValue(args []string, name string) (string, string) {
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for _, arg := range args {
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if strings.Contains(arg, name) {
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vals := strings.Split(arg, "=")
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if len(vals) != 2 {
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return "", "cannot split arg: " + arg
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}
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return vals[1], "value: " + vals[1]
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}
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}
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return "", "arg not found: " + name
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}
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func TestGetNodeInfoFromNode(t *testing.T) {
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clientset := test.New(1)
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node, err := clientset.CoreV1().Nodes().Get("node0", metav1.GetOptions{})
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assert.Nil(t, err)
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assert.NotNil(t, node)
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node.Status = v1.NodeStatus{}
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node.Status.Addresses = []v1.NodeAddress{
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{
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Type: v1.NodeExternalIP,
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Address: "1.1.1.1",
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},
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}
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var info *NodeInfo
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info, err = getNodeInfoFromNode(*node)
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assert.Nil(t, err)
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assert.Equal(t, "1.1.1.1", info.Address)
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}
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func TestTargetMonCount(t *testing.T) {
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// only a single node and min 1
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spec := cephv1.MonSpec{Count: 1, PreferredCount: 0, AllowMultiplePerNode: false}
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nodes := 1
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target, msg := calcTargetMonCount(nodes, spec)
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assert.Equal(t, 1, target)
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logger.Infof(msg)
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// preferred 3 mons, but only one node available
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spec.PreferredCount = 3
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target, msg = calcTargetMonCount(nodes, spec)
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assert.Equal(t, 1, target)
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logger.Infof(msg)
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// preferred 3 mons, and 3 nodes available
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nodes = 3
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target, msg = calcTargetMonCount(nodes, spec)
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assert.Equal(t, 3, target)
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logger.Infof(msg)
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// get an intermediate odd number since we have several options between the min and the node count
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nodes = 4
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spec.Count = 1
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spec.PreferredCount = 5
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target, msg = calcTargetMonCount(nodes, spec)
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assert.Equal(t, 3, target)
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logger.Infof(msg)
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nodes = 5
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spec.PreferredCount = 6
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target, msg = calcTargetMonCount(nodes, spec)
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assert.Equal(t, 5, target)
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logger.Infof(msg)
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nodes = 6
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spec.PreferredCount = 7
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target, msg = calcTargetMonCount(nodes, spec)
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assert.Equal(t, 5, target)
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logger.Infof(msg)
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nodes = 7
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spec.PreferredCount = 7
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target, msg = calcTargetMonCount(nodes, spec)
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assert.Equal(t, 7, target)
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logger.Infof(msg)
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// multiple allowed per node, so we always returned preferred
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nodes = 1
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spec.PreferredCount = 7
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spec.AllowMultiplePerNode = true
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target, msg = calcTargetMonCount(nodes, spec)
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assert.Equal(t, 7, target)
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logger.Infof(msg)
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}
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// mon node usage should return no zones if there are no nodes
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func TestGetNodeMonUsageNoNodes(t *testing.T) {
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clientset := test.New(0)
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c := New(&clusterd.Context{Clientset: clientset}, "ns", "", false, metav1.OwnerReference{}, &sync.Mutex{})
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setCommonMonProperties(c, 0, cephv1.MonSpec{Count: 3, AllowMultiplePerNode: true}, "myversion")
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nodeZones, err := c.getNodeMonUsage()
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assert.NoError(t, err)
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assert.Equal(t, len(nodeZones), 0)
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}
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// all nodes without zone annotations are in the same zone
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func TestGetNodeMonUsageNoZoneLabels(t *testing.T) {
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for i := 1; i < 5; i++ {
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clientset := test.New(i)
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c := New(&clusterd.Context{Clientset: clientset}, "ns", "", false, metav1.OwnerReference{}, &sync.Mutex{})
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setCommonMonProperties(c, 0, cephv1.MonSpec{Count: 3, AllowMultiplePerNode: true}, "myversion")
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nodeZones, err := c.getNodeMonUsage()
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assert.NoError(t, err)
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assert.Equal(t, len(nodeZones), 1)
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assert.Equal(t, len(nodeZones[0]), i)
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}
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}
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// nodes are partitioned into separate zones
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func TestGetNodeMonUsageZoneSpread(t *testing.T) {
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clientset := test.New(5)
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c := New(&clusterd.Context{Clientset: clientset}, "ns", "", false, metav1.OwnerReference{}, &sync.Mutex{})
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setCommonMonProperties(c, 0, cephv1.MonSpec{Count: 3, AllowMultiplePerNode: true}, "myversion")
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// 1 node labeled -> 1 zone + the rest in the unlabeled zone
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node, err := clientset.CoreV1().Nodes().Get("node0", metav1.GetOptions{})
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assert.NoError(t, err)
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assert.NotNil(t, node)
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node.Labels = map[string]string{"failure-domain.beta.kubernetes.io/zone": "z0"}
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clientset.CoreV1().Nodes().Update(node)
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// the zones are unlabeled and sort order isn't guaranteed. so instead we
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// assert on expected count of zones and collection of zone sizes.
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zoneCounts := map[int]int{}
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nodeZones, err := c.getNodeMonUsage()
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assert.NoError(t, err)
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assert.Equal(t, 2, len(nodeZones))
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for _, zones := range nodeZones {
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zoneSize := len(zones)
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if _, ok := zoneCounts[zoneSize]; ok {
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zoneCounts[zoneSize]++
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} else {
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zoneCounts[zoneSize] = 1
|
|
}
|
|
}
|
|
assert.Equal(t, map[int]int{1: 1, 4: 1}, zoneCounts)
|
|
|
|
// 2 nodes with same label, 3 unlabeled
|
|
node, err = clientset.CoreV1().Nodes().Get("node1", metav1.GetOptions{})
|
|
assert.NoError(t, err)
|
|
assert.NotNil(t, node)
|
|
node.Labels = map[string]string{"failure-domain.beta.kubernetes.io/zone": "z0"}
|
|
clientset.CoreV1().Nodes().Update(node)
|
|
|
|
// reset
|
|
zoneCounts = map[int]int{}
|
|
|
|
nodeZones, err = c.getNodeMonUsage()
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, 2, len(nodeZones))
|
|
for _, zones := range nodeZones {
|
|
zoneSize := len(zones)
|
|
if _, ok := zoneCounts[zoneSize]; ok {
|
|
zoneCounts[zoneSize]++
|
|
} else {
|
|
zoneCounts[zoneSize] = 1
|
|
}
|
|
}
|
|
assert.Equal(t, map[int]int{2: 1, 3: 1}, zoneCounts)
|
|
|
|
// 2 nodes with same label, 2 with distinct labels, 1 unlabeled
|
|
node, err = clientset.CoreV1().Nodes().Get("node2", metav1.GetOptions{})
|
|
assert.NoError(t, err)
|
|
assert.NotNil(t, node)
|
|
node.Labels = map[string]string{"failure-domain.beta.kubernetes.io/zone": "z1"}
|
|
clientset.CoreV1().Nodes().Update(node)
|
|
|
|
node, err = clientset.CoreV1().Nodes().Get("node3", metav1.GetOptions{})
|
|
assert.NoError(t, err)
|
|
assert.NotNil(t, node)
|
|
node.Labels = map[string]string{"failure-domain.beta.kubernetes.io/zone": "z2"}
|
|
clientset.CoreV1().Nodes().Update(node)
|
|
|
|
// reset
|
|
zoneCounts = map[int]int{}
|
|
|
|
nodeZones, err = c.getNodeMonUsage()
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, 4, len(nodeZones))
|
|
for _, zones := range nodeZones {
|
|
zoneSize := len(zones)
|
|
if _, ok := zoneCounts[zoneSize]; ok {
|
|
zoneCounts[zoneSize]++
|
|
} else {
|
|
zoneCounts[zoneSize] = 1
|
|
}
|
|
}
|
|
assert.Equal(t, map[int]int{2: 1, 1: 3}, zoneCounts)
|
|
|
|
// no unlabeled zones
|
|
node, err = clientset.CoreV1().Nodes().Get("node4", metav1.GetOptions{})
|
|
assert.NoError(t, err)
|
|
assert.NotNil(t, node)
|
|
node.Labels = map[string]string{"failure-domain.beta.kubernetes.io/zone": "z1"}
|
|
clientset.CoreV1().Nodes().Update(node)
|
|
|
|
// reset
|
|
zoneCounts = map[int]int{}
|
|
|
|
nodeZones, err = c.getNodeMonUsage()
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, 3, len(nodeZones))
|
|
for _, zones := range nodeZones {
|
|
zoneSize := len(zones)
|
|
if _, ok := zoneCounts[zoneSize]; ok {
|
|
zoneCounts[zoneSize]++
|
|
} else {
|
|
zoneCounts[zoneSize] = 1
|
|
}
|
|
}
|
|
assert.Equal(t, map[int]int{2: 2, 1: 1}, zoneCounts)
|
|
}
|