mirror of https://github.com/kubernetes/kops.git
116 lines
3.8 KiB
Go
116 lines
3.8 KiB
Go
/*
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Copyright 2021 The Kubernetes Authors.
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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 instancegroups
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import (
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"testing"
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"github.com/aws/aws-sdk-go/service/autoscaling"
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"github.com/aws/aws-sdk-go/service/ec2"
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"github.com/aws/aws-sdk-go/service/ec2/ec2iface"
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"github.com/stretchr/testify/assert"
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"k8s.io/client-go/kubernetes"
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"k8s.io/kops/cloudmock/aws/mockautoscaling"
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"k8s.io/kops/pkg/apis/kops"
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"k8s.io/kops/pkg/cloudinstances"
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"k8s.io/kops/pkg/validation"
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"k8s.io/kops/upup/pkg/fi/cloudup/awsup"
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)
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// Here we have three nodes that are up to date, while three warm nodes need updating.
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// Only the initial cluster validation should be run
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func TestRollingUpdateOnlyWarmPoolNodes(t *testing.T) {
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c, cloud := getTestSetup()
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k8sClient := c.K8sClient
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groups := make(map[string]*cloudinstances.CloudInstanceGroup)
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makeGroupWithWarmPool(groups, k8sClient, cloud, "node-1", kops.InstanceGroupRoleNode, 3, 0, 3, 3)
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validator := &countingValidator{}
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c.ClusterValidator = validator
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assert.Equal(t, 3, len(groups["node-1"].NeedUpdate), "number of nodes needing update")
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err := c.RollingUpdate(groups, &kops.InstanceGroupList{})
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assert.NoError(t, err, "rolling update")
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assert.Equal(t, 1, validator.numValidations, "number of validations")
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}
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func TestRollingWarmPoolBeforeJoinedNodes(t *testing.T) {
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c, cloud := getTestSetup()
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k8sClient := c.K8sClient
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groups := make(map[string]*cloudinstances.CloudInstanceGroup)
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makeGroupWithWarmPool(groups, k8sClient, cloud, "node-1", kops.InstanceGroupRoleNode, 3, 3, 3, 3)
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warmPoolBeforeJoinedNodesTest := &warmPoolBeforeJoinedNodesTest{
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EC2API: cloud.MockEC2,
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t: t,
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}
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cloud.MockEC2 = warmPoolBeforeJoinedNodesTest
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err := c.RollingUpdate(groups, &kops.InstanceGroupList{})
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assert.NoError(t, err, "rolling update")
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assert.Equal(t, 6, warmPoolBeforeJoinedNodesTest.numTerminations, "Number of terminations")
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}
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type countingValidator struct {
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numValidations int
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}
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func (c *countingValidator) Validate() (*validation.ValidationCluster, error) {
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c.numValidations++
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return &validation.ValidationCluster{}, nil
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}
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func makeGroupWithWarmPool(groups map[string]*cloudinstances.CloudInstanceGroup, k8sClient kubernetes.Interface, cloud *awsup.MockAWSCloud, name string, role kops.InstanceGroupRole, count int, needUpdate int, warmCount int, warmNeedUpdate int) {
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makeGroup(groups, k8sClient, cloud, name, role, count, needUpdate)
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group := groups[name]
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wpInstances := []*autoscaling.Instance{}
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warmStoppedState := autoscaling.LifecycleStateWarmedStopped
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for i := 0; i < warmCount; i++ {
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id := name + "-wp-" + string(rune('a'+i))
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instance := &autoscaling.Instance{
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InstanceId: &id,
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LifecycleState: &warmStoppedState,
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}
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wpInstances = append(wpInstances, instance)
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cm, _ := group.NewCloudInstance(id, cloudinstances.CloudInstanceStatusNeedsUpdate, nil)
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cm.State = cloudinstances.WarmPool
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}
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// There is no API to write to warm pools, so we need to cheat.
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mockASG := cloud.MockAutoscaling.(*mockautoscaling.MockAutoscaling)
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mockASG.WarmPoolInstances[name] = wpInstances
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}
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type warmPoolBeforeJoinedNodesTest struct {
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ec2iface.EC2API
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t *testing.T
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numTerminations int
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}
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func (t *warmPoolBeforeJoinedNodesTest) TerminateInstances(input *ec2.TerminateInstancesInput) (*ec2.TerminateInstancesOutput, error) {
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t.numTerminations++
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return t.EC2API.TerminateInstances(input)
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}
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