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mhc_remediations.go
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mhc_remediations.go
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/*
Copyright 2020 The Kubernetes Authors.
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 e2e
import (
"context"
"fmt"
"os"
"path/filepath"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
corev1 "k8s.io/api/core/v1"
"k8s.io/utils/pointer"
"sigs.k8s.io/cluster-api/test/framework"
"sigs.k8s.io/cluster-api/test/framework/clusterctl"
"sigs.k8s.io/cluster-api/util"
)
// MachineRemediationSpecInput is the input for MachineRemediationSpec.
type MachineRemediationSpecInput struct {
E2EConfig *clusterctl.E2EConfig
ClusterctlConfigPath string
BootstrapClusterProxy framework.ClusterProxy
ArtifactFolder string
SkipCleanup bool
// KCPFlavor, if specified, must refer to a template that has a MachineHealthCheck
// resource configured to match the control plane Machines (cluster.x-k8s.io/controlplane: "" label)
// and be configured to treat "e2e.remediation.condition" "False" as an unhealthy
// condition with a short timeout.
// If not specified, "kcp-remediation" is used.
KCPFlavor *string
// MDFlavor, if specified, must refer to a template that has a MachineHealthCheck
// resource configured to match the MachineDeployment managed Machines and be
// configured to treat "e2e.remediation.condition" "False" as an unhealthy
// condition with a short timeout.
// If not specified, "md-remediation" is used.
MDFlavor *string
}
// MachineRemediationSpec implements a test that verifies that Machines are remediated by MHC during unhealthy conditions.
func MachineRemediationSpec(ctx context.Context, inputGetter func() MachineRemediationSpecInput) {
var (
specName = "mhc-remediation"
input MachineRemediationSpecInput
namespace *corev1.Namespace
cancelWatches context.CancelFunc
clusterResources *clusterctl.ApplyClusterTemplateAndWaitResult
)
BeforeEach(func() {
Expect(ctx).NotTo(BeNil(), "ctx is required for %s spec", specName)
input = inputGetter()
Expect(input.E2EConfig).ToNot(BeNil(), "Invalid argument. input.E2EConfig can't be nil when calling %s spec", specName)
Expect(input.ClusterctlConfigPath).To(BeAnExistingFile(), "Invalid argument. input.ClusterctlConfigPath must be an existing file when calling %s spec", specName)
Expect(input.BootstrapClusterProxy).ToNot(BeNil(), "Invalid argument. input.BootstrapClusterProxy can't be nil when calling %s spec", specName)
Expect(os.MkdirAll(input.ArtifactFolder, 0750)).To(Succeed(), "Invalid argument. input.ArtifactFolder can't be created for %s spec", specName)
Expect(input.E2EConfig.Variables).To(HaveKey(KubernetesVersion))
// Setup a Namespace where to host objects for this spec and create a watcher for the namespace events.
namespace, cancelWatches = setupSpecNamespace(ctx, specName, input.BootstrapClusterProxy, input.ArtifactFolder)
clusterResources = new(clusterctl.ApplyClusterTemplateAndWaitResult)
})
It("Should successfully trigger machine deployment remediation", func() {
By("Creating a workload cluster")
clusterctl.ApplyClusterTemplateAndWait(ctx, clusterctl.ApplyClusterTemplateAndWaitInput{
ClusterProxy: input.BootstrapClusterProxy,
ConfigCluster: clusterctl.ConfigClusterInput{
LogFolder: filepath.Join(input.ArtifactFolder, "clusters", input.BootstrapClusterProxy.GetName()),
ClusterctlConfigPath: input.ClusterctlConfigPath,
KubeconfigPath: input.BootstrapClusterProxy.GetKubeconfigPath(),
InfrastructureProvider: clusterctl.DefaultInfrastructureProvider,
Flavor: pointer.StringDeref(input.MDFlavor, "md-remediation"),
Namespace: namespace.Name,
ClusterName: fmt.Sprintf("%s-%s", specName, util.RandomString(6)),
KubernetesVersion: input.E2EConfig.GetVariable(KubernetesVersion),
ControlPlaneMachineCount: pointer.Int64Ptr(1),
WorkerMachineCount: pointer.Int64Ptr(1),
},
WaitForClusterIntervals: input.E2EConfig.GetIntervals(specName, "wait-cluster"),
WaitForControlPlaneIntervals: input.E2EConfig.GetIntervals(specName, "wait-control-plane"),
WaitForMachineDeployments: input.E2EConfig.GetIntervals(specName, "wait-worker-nodes"),
}, clusterResources)
By("Setting a machine unhealthy and wait for MachineDeployment remediation")
framework.DiscoverMachineHealthChecksAndWaitForRemediation(ctx, framework.DiscoverMachineHealthCheckAndWaitForRemediationInput{
ClusterProxy: input.BootstrapClusterProxy,
Cluster: clusterResources.Cluster,
WaitForMachineRemediation: input.E2EConfig.GetIntervals(specName, "wait-machine-remediation"),
})
By("PASSED!")
})
It("Should successfully trigger KCP remediation", func() {
By("Creating a workload cluster")
clusterctl.ApplyClusterTemplateAndWait(ctx, clusterctl.ApplyClusterTemplateAndWaitInput{
ClusterProxy: input.BootstrapClusterProxy,
ConfigCluster: clusterctl.ConfigClusterInput{
LogFolder: filepath.Join(input.ArtifactFolder, "clusters", input.BootstrapClusterProxy.GetName()),
ClusterctlConfigPath: input.ClusterctlConfigPath,
KubeconfigPath: input.BootstrapClusterProxy.GetKubeconfigPath(),
InfrastructureProvider: clusterctl.DefaultInfrastructureProvider,
Flavor: pointer.StringDeref(input.KCPFlavor, "kcp-remediation"),
Namespace: namespace.Name,
ClusterName: fmt.Sprintf("%s-%s", specName, util.RandomString(6)),
KubernetesVersion: input.E2EConfig.GetVariable(KubernetesVersion),
ControlPlaneMachineCount: pointer.Int64Ptr(3),
WorkerMachineCount: pointer.Int64Ptr(1),
},
WaitForClusterIntervals: input.E2EConfig.GetIntervals(specName, "wait-cluster"),
WaitForControlPlaneIntervals: input.E2EConfig.GetIntervals(specName, "wait-control-plane"),
WaitForMachineDeployments: input.E2EConfig.GetIntervals(specName, "wait-worker-nodes"),
}, clusterResources)
By("Setting a machine unhealthy and wait for KubeadmControlPlane remediation")
framework.DiscoverMachineHealthChecksAndWaitForRemediation(ctx, framework.DiscoverMachineHealthCheckAndWaitForRemediationInput{
ClusterProxy: input.BootstrapClusterProxy,
Cluster: clusterResources.Cluster,
WaitForMachineRemediation: input.E2EConfig.GetIntervals(specName, "wait-machine-remediation"),
})
By("PASSED!")
})
AfterEach(func() {
// Dumps all the resources in the spec namespace, then cleanups the cluster object and the spec namespace itself.
dumpSpecResourcesAndCleanup(ctx, specName, input.BootstrapClusterProxy, input.ArtifactFolder, namespace, cancelWatches, clusterResources.Cluster, input.E2EConfig.GetIntervals, input.SkipCleanup)
})
}