Sébastien Han
871054e887
If someone sets limits to pod, we want to ensure the possible experience, so we want to make sure that people do not configure inapropriate values for certain daemons. We decide to fail if the memory.limit is too low. Signed-off-by: Sébastien Han <seb@redhat.com>
300 lines
9.4 KiB
Go
300 lines
9.4 KiB
Go
/*
|
|
Copyright 2016 The Rook Authors. All rights reserved.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package mon
|
|
|
|
import (
|
|
"testing"
|
|
|
|
cephv1 "github.com/rook/rook/pkg/apis/ceph.rook.io/v1"
|
|
rookalpha "github.com/rook/rook/pkg/apis/rook.io/v1alpha2"
|
|
"github.com/rook/rook/pkg/clusterd"
|
|
"github.com/rook/rook/pkg/operator/test"
|
|
"github.com/stretchr/testify/assert"
|
|
v1 "k8s.io/api/core/v1"
|
|
"k8s.io/apimachinery/pkg/api/resource"
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
)
|
|
|
|
func TestAvailableMonNodes(t *testing.T) {
|
|
clientset := test.New(1)
|
|
c := New(&clusterd.Context{Clientset: clientset}, "ns", "", false, metav1.OwnerReference{})
|
|
setCommonMonProperties(c, 0, cephv1.MonSpec{Count: 3, AllowMultiplePerNode: true}, "myversion")
|
|
|
|
nodes, err := c.getMonNodes()
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 1, len(nodes))
|
|
|
|
// set node to not ready
|
|
conditions := v1.NodeCondition{Type: v1.NodeOutOfDisk}
|
|
nodes[0].Status = v1.NodeStatus{Conditions: []v1.NodeCondition{conditions}}
|
|
clientset.CoreV1().Nodes().Update(&nodes[0])
|
|
|
|
// when the node is not ready there should be no nodes returned and an error
|
|
emptyNodes, err := c.getMonNodes()
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 0, len(emptyNodes))
|
|
|
|
// even if AllowMultiplePerNode is true there should be no node returned
|
|
c.spec.Mon.AllowMultiplePerNode = true
|
|
emptyNodes, err = c.getMonNodes()
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 0, len(emptyNodes))
|
|
}
|
|
|
|
func TestAvailableNodesInUse(t *testing.T) {
|
|
clientset := test.New(3)
|
|
c := New(&clusterd.Context{Clientset: clientset}, "ns", "", false, metav1.OwnerReference{})
|
|
setCommonMonProperties(c, 0, cephv1.MonSpec{Count: 3, AllowMultiplePerNode: true}, "myversion")
|
|
|
|
// all three nodes are available by default
|
|
nodes, err := c.getMonNodes()
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 3, len(nodes))
|
|
|
|
// start pods on two of the nodes so that only one node will be available
|
|
monIDs := []string{"a", "b"}
|
|
for i := 0; i < 2; i++ {
|
|
pod := c.makeMonPod(testGenMonConfig(monIDs[i]), nodes[i].Name)
|
|
_, err = clientset.CoreV1().Pods(c.Namespace).Create(pod)
|
|
assert.Nil(t, err)
|
|
}
|
|
reducedNodes, err := c.getMonNodes()
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 1, len(reducedNodes))
|
|
assert.Equal(t, nodes[2].Name, reducedNodes[0].Name)
|
|
|
|
// start pods on the remaining node. We expect no nodes to be available for placement
|
|
// since there is no way to place a mon on an unused node.
|
|
pod := c.makeMonPod(testGenMonConfig("c"), nodes[2].Name)
|
|
_, err = clientset.CoreV1().Pods(c.Namespace).Create(pod)
|
|
assert.Nil(t, err)
|
|
nodes, err = c.getMonNodes()
|
|
// no mon nodes is no error, just an empty nodes list
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 3, len(nodes))
|
|
|
|
// no nodes should be returned when AllowMultiplePerNode is false
|
|
c.spec.Mon.AllowMultiplePerNode = false
|
|
nodes, err = c.getMonNodes()
|
|
// no mon nodes is no error, just an empty nodes list
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 0, len(nodes))
|
|
}
|
|
|
|
func TestTaintedNodes(t *testing.T) {
|
|
clientset := test.New(3)
|
|
c := New(&clusterd.Context{Clientset: clientset}, "ns", "", false, metav1.OwnerReference{})
|
|
setCommonMonProperties(c, 0, cephv1.MonSpec{Count: 3, AllowMultiplePerNode: true}, "myversion")
|
|
|
|
nodes, err := c.getMonNodes()
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 3, len(nodes))
|
|
|
|
// mark a node as unschedulable
|
|
nodes[0].Spec.Unschedulable = true
|
|
clientset.CoreV1().Nodes().Update(&nodes[0])
|
|
nodesSchedulable, err := c.getMonNodes()
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 2, len(nodesSchedulable))
|
|
nodes[0].Spec.Unschedulable = false
|
|
|
|
// taint nodes so they will not be schedulable for new pods
|
|
nodes[0].Spec.Taints = []v1.Taint{
|
|
{Effect: v1.TaintEffectNoSchedule},
|
|
}
|
|
nodes[1].Spec.Taints = []v1.Taint{
|
|
{Effect: v1.TaintEffectPreferNoSchedule},
|
|
}
|
|
clientset.CoreV1().Nodes().Update(&nodes[0])
|
|
clientset.CoreV1().Nodes().Update(&nodes[1])
|
|
clientset.CoreV1().Nodes().Update(&nodes[2])
|
|
cleanNodes, err := c.getMonNodes()
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 1, len(cleanNodes))
|
|
assert.Equal(t, nodes[2].Name, cleanNodes[0].Name)
|
|
}
|
|
|
|
func TestNodeAffinity(t *testing.T) {
|
|
clientset := test.New(3)
|
|
c := New(&clusterd.Context{Clientset: clientset}, "ns", "", false, metav1.OwnerReference{})
|
|
setCommonMonProperties(c, 0, cephv1.MonSpec{Count: 3, AllowMultiplePerNode: true}, "myversion")
|
|
|
|
nodes, err := c.getMonNodes()
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 3, len(nodes))
|
|
|
|
c.spec.Placement = map[string]rookalpha.Placement{}
|
|
c.spec.Placement["mon"] = rookalpha.Placement{NodeAffinity: &v1.NodeAffinity{
|
|
RequiredDuringSchedulingIgnoredDuringExecution: &v1.NodeSelector{
|
|
NodeSelectorTerms: []v1.NodeSelectorTerm{
|
|
{
|
|
MatchExpressions: []v1.NodeSelectorRequirement{
|
|
{
|
|
Key: "label",
|
|
Operator: v1.NodeSelectorOpIn,
|
|
Values: []string{"bar", "baz"},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
// label nodes so node0 will not be schedulable for new pods
|
|
nodes[0].Labels = map[string]string{"label": "foo"}
|
|
nodes[1].Labels = map[string]string{"label": "bar"}
|
|
nodes[2].Labels = map[string]string{"label": "baz"}
|
|
clientset.CoreV1().Nodes().Update(&nodes[0])
|
|
clientset.CoreV1().Nodes().Update(&nodes[1])
|
|
clientset.CoreV1().Nodes().Update(&nodes[2])
|
|
cleanNodes, err := c.getMonNodes()
|
|
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 2, len(cleanNodes))
|
|
assert.Equal(t, nodes[1].Name, cleanNodes[0].Name)
|
|
assert.Equal(t, nodes[2].Name, cleanNodes[1].Name)
|
|
}
|
|
|
|
// this tests can 3 mons with hostnetworking on the same host is rejected
|
|
func TestHostNetworkSameNode(t *testing.T) {
|
|
namespace := "ns"
|
|
context := newTestStartCluster(namespace)
|
|
|
|
// cluster host networking
|
|
c := newCluster(context, namespace, true, true, v1.ResourceRequirements{})
|
|
c.clusterInfo = test.CreateConfigDir(1)
|
|
|
|
// start a basic cluster
|
|
_, err := c.Start(c.clusterInfo, c.rookVersion, c.spec)
|
|
assert.Error(t, err)
|
|
}
|
|
|
|
func TestPodMemory(t *testing.T) {
|
|
namespace := "ns"
|
|
context := newTestStartCluster(namespace)
|
|
|
|
// Test memory limit alone
|
|
r := v1.ResourceRequirements{
|
|
Limits: v1.ResourceList{
|
|
v1.ResourceMemory: *resource.NewQuantity(536870912, resource.BinarySI), // size in Bytes
|
|
},
|
|
}
|
|
|
|
c := newCluster(context, namespace, false, true, r)
|
|
c.clusterInfo = test.CreateConfigDir(1)
|
|
// start a basic cluster
|
|
_, err := c.Start(c.clusterInfo, c.rookVersion, c.spec)
|
|
assert.Error(t, err)
|
|
|
|
// Test REQUEST == LIMIT
|
|
r = v1.ResourceRequirements{
|
|
Limits: v1.ResourceList{
|
|
v1.ResourceMemory: *resource.NewQuantity(536870912, resource.BinarySI), // size in Bytes
|
|
},
|
|
Requests: v1.ResourceList{
|
|
v1.ResourceMemory: *resource.NewQuantity(536870912, resource.BinarySI), // size in Bytes
|
|
},
|
|
}
|
|
|
|
c = newCluster(context, namespace, false, true, r)
|
|
c.clusterInfo = test.CreateConfigDir(1)
|
|
// start a basic cluster
|
|
_, err = c.Start(c.clusterInfo, c.rookVersion, c.spec)
|
|
assert.Error(t, err)
|
|
|
|
// Test LIMIT != REQUEST but obviously LIMIT > REQUEST
|
|
r = v1.ResourceRequirements{
|
|
Limits: v1.ResourceList{
|
|
v1.ResourceMemory: *resource.NewQuantity(536870912, resource.BinarySI), // size in Bytes
|
|
},
|
|
Requests: v1.ResourceList{
|
|
v1.ResourceMemory: *resource.NewQuantity(236870912, resource.BinarySI), // size in Bytes
|
|
},
|
|
}
|
|
|
|
c = newCluster(context, namespace, false, true, r)
|
|
c.clusterInfo = test.CreateConfigDir(1)
|
|
// start a basic cluster
|
|
_, err = c.Start(c.clusterInfo, c.rookVersion, c.spec)
|
|
assert.Error(t, err)
|
|
|
|
// Test valid case where pod resource is set approprietly
|
|
r = v1.ResourceRequirements{
|
|
Limits: v1.ResourceList{
|
|
v1.ResourceMemory: *resource.NewQuantity(1073741824, resource.BinarySI), // size in Bytes
|
|
},
|
|
Requests: v1.ResourceList{
|
|
v1.ResourceMemory: *resource.NewQuantity(236870912, resource.BinarySI), // size in Bytes
|
|
},
|
|
}
|
|
|
|
c = newCluster(context, namespace, false, true, r)
|
|
c.clusterInfo = test.CreateConfigDir(1)
|
|
// start a basic cluster
|
|
_, err = c.Start(c.clusterInfo, c.rookVersion, c.spec)
|
|
assert.Nil(t, err)
|
|
|
|
// Test no resources were specified on the pod
|
|
r = v1.ResourceRequirements{}
|
|
c = newCluster(context, namespace, false, true, r)
|
|
c.clusterInfo = test.CreateConfigDir(1)
|
|
// start a basic cluster
|
|
_, err = c.Start(c.clusterInfo, c.rookVersion, c.spec)
|
|
assert.Nil(t, err)
|
|
|
|
}
|
|
|
|
func TestHostNetwork(t *testing.T) {
|
|
clientset := test.New(3)
|
|
c := New(&clusterd.Context{Clientset: clientset}, "ns", "", false, metav1.OwnerReference{})
|
|
setCommonMonProperties(c, 0, cephv1.MonSpec{Count: 3, AllowMultiplePerNode: true}, "myversion")
|
|
|
|
c.HostNetwork = true
|
|
|
|
nodes, err := c.getMonNodes()
|
|
assert.Nil(t, err)
|
|
assert.Equal(t, 3, len(nodes))
|
|
|
|
pod := c.makeMonPod(testGenMonConfig("c"), nodes[2].Name)
|
|
assert.NotNil(t, pod)
|
|
|
|
assert.Equal(t, true, pod.Spec.HostNetwork)
|
|
assert.Equal(t, v1.DNSClusterFirstWithHostNet, pod.Spec.DNSPolicy)
|
|
}
|
|
|
|
func TestGetNodeInfoFromNode(t *testing.T) {
|
|
clientset := test.New(1)
|
|
node, err := clientset.CoreV1().Nodes().Get("node0", metav1.GetOptions{})
|
|
assert.Nil(t, err)
|
|
assert.NotNil(t, node)
|
|
|
|
node.Status = v1.NodeStatus{}
|
|
node.Status.Addresses = []v1.NodeAddress{
|
|
{
|
|
Type: v1.NodeExternalIP,
|
|
Address: "1.1.1.1",
|
|
},
|
|
}
|
|
|
|
var info *NodeInfo
|
|
info, err = getNodeInfoFromNode(*node)
|
|
assert.Nil(t, err)
|
|
|
|
assert.Equal(t, "1.1.1.1", info.Address)
|
|
}
|