/
sync.go
444 lines (411 loc) · 14.2 KB
/
sync.go
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package operator
import (
"fmt"
"time"
"github.com/golang/glog"
"github.com/openshift/library-go/pkg/operator/events"
"github.com/openshift/library-go/pkg/operator/resource/resourceapply"
"github.com/openshift/library-go/pkg/operator/resource/resourcemerge"
machinecontroller "github.com/openshift/machine-api-operator/pkg/controller/machine"
"github.com/openshift/machine-api-operator/pkg/util/conditions"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/utils/pointer"
)
const (
deploymentRolloutPollInterval = time.Second
deploymentRolloutTimeout = 5 * time.Minute
deploymentMinimumAvailabilityTime = 3 * time.Minute
daemonsetRolloutPollInterval = time.Second
daemonsetRolloutTimeout = 5 * time.Minute
machineAPITerminationHandler = "machine-api-termination-handler"
)
func (optr *Operator) syncAll(config *OperatorConfig) error {
if err := optr.statusProgressing(); err != nil {
glog.Errorf("Error syncing ClusterOperatorStatus: %v", err)
return fmt.Errorf("error syncing ClusterOperatorStatus: %v", err)
}
if config.Controllers.Provider == clusterAPIControllerNoOp {
glog.V(3).Info("Provider is NoOp, skipping synchronisation")
if err := optr.statusAvailable(); err != nil {
glog.Errorf("Error syncing ClusterOperatorStatus: %v", err)
return fmt.Errorf("error syncing ClusterOperatorStatus: %v", err)
}
return nil
}
if err := optr.syncClusterAPIController(config); err != nil {
if err := optr.statusDegraded(err.Error()); err != nil {
// Just log the error here. We still want to
// return the outer error.
glog.Errorf("Error syncing ClusterOperatorStatus: %v", err)
}
glog.Errorf("Error syncing machine-api-controller: %v", err)
return err
}
glog.V(3).Info("Synced up all machine-api-controller components")
// In addition, if the Provider is BareMetal, then bring up
// the baremetal-operator pod
if config.BaremetalControllers.BaremetalOperator != "" {
if err := optr.syncBaremetalControllers(config); err != nil {
if err := optr.statusDegraded(err.Error()); err != nil {
// Just log the error here. We still want to
// return the outer error.
glog.Errorf("Error syncing BaremetalOperatorStatus: %v", err)
}
glog.Errorf("Error syncing metal3-controller: %v", err)
return err
}
glog.V(3).Info("Synced up all metal3 components")
}
if err := optr.statusAvailable(); err != nil {
glog.Errorf("Error syncing ClusterOperatorStatus: %v", err)
return fmt.Errorf("error syncing ClusterOperatorStatus: %v", err)
}
return nil
}
func (optr *Operator) syncClusterAPIController(config *OperatorConfig) error {
controllersDeployment := newDeployment(config, nil)
expectedGeneration := resourcemerge.ExpectedDeploymentGeneration(controllersDeployment, optr.generations)
d, updated, err := resourceapply.ApplyDeployment(optr.kubeClient.AppsV1(),
events.NewLoggingEventRecorder(optr.name), controllersDeployment, expectedGeneration)
if err != nil {
return err
}
if updated {
resourcemerge.SetDeploymentGeneration(&optr.generations, d)
err := optr.waitForDeploymentRollout(controllersDeployment, deploymentRolloutPollInterval, deploymentRolloutTimeout)
if err != nil {
return err
}
}
// Sync Termination Handler DaemonSet if supported
if config.Controllers.TerminationHandler != clusterAPIControllerNoOp {
if err := optr.syncTerminationHandler(config); err != nil {
return err
}
}
return nil
}
func (optr *Operator) syncTerminationHandler(config *OperatorConfig) error {
terminationDaemonSet := newTerminationDaemonSet(config)
expectedGeneration := resourcemerge.ExpectedDaemonSetGeneration(terminationDaemonSet, optr.generations)
ds, updated, err := resourceapply.ApplyDaemonSet(optr.kubeClient.AppsV1(),
events.NewLoggingEventRecorder(optr.name), terminationDaemonSet, expectedGeneration)
if err != nil {
return err
}
if updated {
resourcemerge.SetDaemonSetGeneration(&optr.generations, ds)
return optr.waitForDaemonSetRollout(terminationDaemonSet)
}
return nil
}
func (optr *Operator) syncBaremetalControllers(config *OperatorConfig) error {
// Try to get baremetal provisioning config from a CR
baremetalProvisioningConfig, err := getBaremetalProvisioningConfig(optr.dynamicClient, baremetalProvisioningCR)
if err != nil {
glog.Errorf("Unable to read Baremetal Provisioning config from CR %s.", baremetalProvisioningCR)
glog.Infof("Will try to read Baremetal Provisioning config from ConfigMap %s instead", baremetalConfigmap)
}
// Create a Secret needed for the Metal3 deployment
if err := createMariadbPasswordSecret(optr.kubeClient.CoreV1(), config); err != nil {
glog.Error("Not proceeding with Metal3 deployment. Failed to create Mariadb password.")
return err
}
metal3Deployment := newMetal3Deployment(config, baremetalProvisioningConfig)
expectedGeneration := resourcemerge.ExpectedDeploymentGeneration(metal3Deployment, optr.generations)
d, updated, err := resourceapply.ApplyDeployment(optr.kubeClient.AppsV1(),
events.NewLoggingEventRecorder(optr.name), metal3Deployment, expectedGeneration)
if err != nil {
return err
}
if updated {
resourcemerge.SetDeploymentGeneration(&optr.generations, d)
return optr.waitForDeploymentRollout(metal3Deployment, deploymentRolloutPollInterval, deploymentRolloutTimeout)
}
return nil
}
func (optr *Operator) waitForDeploymentRollout(resource *appsv1.Deployment, pollInterval, rolloutTimeout time.Duration) error {
var lastError error
err := wait.Poll(pollInterval, rolloutTimeout, func() (bool, error) {
d, err := optr.deployLister.Deployments(resource.Namespace).Get(resource.Name)
if apierrors.IsNotFound(err) {
lastError = fmt.Errorf("deployment %s is not found", d.GetName())
glog.Error(lastError)
return false, nil
}
if err != nil {
// Do not return error here, as we could be updating the API Server itself, in which case we
// want to continue waiting.
lastError = fmt.Errorf("getting Deployment %s during rollout: %v", resource.Name, err)
glog.Error(lastError)
return false, nil
}
if d.DeletionTimestamp != nil {
lastError = nil
return false, fmt.Errorf("deployment %s is being deleted", resource.Name)
}
if d.Generation <= d.Status.ObservedGeneration && d.Status.UpdatedReplicas == d.Status.Replicas && d.Status.UnavailableReplicas == 0 {
c := conditions.GetDeploymentCondition(d, appsv1.DeploymentAvailable)
if c == nil {
lastError = fmt.Errorf("deployment %s is not reporting available yet", d.GetName())
glog.V(4).Info(lastError)
return false, nil
}
if c.Status == corev1.ConditionFalse {
lastError = fmt.Errorf("deployment %s is reporting available=false", d.GetName())
glog.V(4).Info(lastError)
return false, nil
}
if c.LastTransitionTime.Time.Add(deploymentMinimumAvailabilityTime).After(time.Now()) {
lastError = fmt.Errorf("deployment %s has been available for less than 3 min", d.GetName())
glog.V(4).Info(lastError)
return false, nil
}
lastError = nil
return true, nil
}
lastError = fmt.Errorf("deployment %s is not ready. status: (replicas: %d, updated: %d, ready: %d, unavailable: %d)", d.Name, d.Status.Replicas, d.Status.UpdatedReplicas, d.Status.ReadyReplicas, d.Status.UnavailableReplicas)
glog.V(4).Info(lastError)
return false, nil
})
if lastError != nil {
return lastError
}
return err
}
func (optr *Operator) waitForDaemonSetRollout(resource *appsv1.DaemonSet) error {
var lastError error
err := wait.Poll(daemonsetRolloutPollInterval, daemonsetRolloutTimeout, func() (bool, error) {
d, err := optr.daemonsetLister.DaemonSets(resource.Namespace).Get(resource.Name)
if apierrors.IsNotFound(err) {
return false, nil
}
if err != nil {
// Do not return error here, as we could be updating the API Server itself, in which case we
// want to continue waiting.
lastError = fmt.Errorf("getting DaemonSet %s during rollout: %v", resource.Name, err)
glog.Error(lastError)
return false, nil
}
if d.DeletionTimestamp != nil {
lastError = nil
return false, fmt.Errorf("daemonset %s is being deleted", resource.Name)
}
if d.Generation <= d.Status.ObservedGeneration && d.Status.UpdatedNumberScheduled == d.Status.DesiredNumberScheduled && d.Status.NumberUnavailable == 0 {
lastError = nil
return true, nil
}
lastError = fmt.Errorf("daemonset %s is not ready. status: (desired: %d, updated: %d, available: %d, unavailable: %d)", d.Name, d.Status.DesiredNumberScheduled, d.Status.UpdatedNumberScheduled, d.Status.NumberAvailable, d.Status.NumberUnavailable)
glog.V(4).Info(lastError)
return false, nil
})
if lastError != nil {
return lastError
}
return err
}
func newDeployment(config *OperatorConfig, features map[string]bool) *appsv1.Deployment {
replicas := int32(1)
template := newPodTemplateSpec(config, features)
return &appsv1.Deployment{
ObjectMeta: metav1.ObjectMeta{
Name: "machine-api-controllers",
Namespace: config.TargetNamespace,
Annotations: map[string]string{
maoOwnedAnnotation: "",
},
Labels: map[string]string{
"api": "clusterapi",
"k8s-app": "controller",
},
},
Spec: appsv1.DeploymentSpec{
Replicas: &replicas,
Selector: &metav1.LabelSelector{
MatchLabels: map[string]string{
"api": "clusterapi",
"k8s-app": "controller",
},
},
Template: *template,
},
}
}
func newPodTemplateSpec(config *OperatorConfig, features map[string]bool) *corev1.PodTemplateSpec {
containers := newContainers(config, features)
tolerations := []corev1.Toleration{
{
Key: "node-role.kubernetes.io/master",
Effect: corev1.TaintEffectNoSchedule,
},
{
Key: "CriticalAddonsOnly",
Operator: corev1.TolerationOpExists,
},
{
Key: "node.kubernetes.io/not-ready",
Effect: corev1.TaintEffectNoExecute,
Operator: corev1.TolerationOpExists,
TolerationSeconds: pointer.Int64Ptr(120),
},
{
Key: "node.kubernetes.io/unreachable",
Effect: corev1.TaintEffectNoExecute,
Operator: corev1.TolerationOpExists,
TolerationSeconds: pointer.Int64Ptr(120),
},
}
return &corev1.PodTemplateSpec{
ObjectMeta: metav1.ObjectMeta{
Labels: map[string]string{
"api": "clusterapi",
"k8s-app": "controller",
},
},
Spec: corev1.PodSpec{
Containers: containers,
PriorityClassName: "system-node-critical",
NodeSelector: map[string]string{"node-role.kubernetes.io/master": ""},
ServiceAccountName: "machine-api-controllers",
Tolerations: tolerations,
},
}
}
func newContainers(config *OperatorConfig, features map[string]bool) []corev1.Container {
resources := corev1.ResourceRequirements{
Requests: map[corev1.ResourceName]resource.Quantity{
corev1.ResourceMemory: resource.MustParse("20Mi"),
corev1.ResourceCPU: resource.MustParse("10m"),
},
}
args := []string{
"--logtostderr=true",
"--v=3",
"--leader-elect=true",
"--leader-elect-lease-duration=120s",
fmt.Sprintf("--namespace=%s", config.TargetNamespace),
}
containers := []corev1.Container{
{
Name: "machineset-controller",
Image: config.Controllers.MachineSet,
Command: []string{"/machineset-controller"},
Args: args,
Resources: resources,
},
{
Name: "machine-controller",
Image: config.Controllers.Provider,
Command: []string{"/machine-controller-manager"},
Args: args,
Resources: resources,
Env: []corev1.EnvVar{
{
Name: "NODE_NAME",
ValueFrom: &corev1.EnvVarSource{
FieldRef: &corev1.ObjectFieldSelector{
FieldPath: "spec.nodeName",
},
},
},
},
},
{
Name: "nodelink-controller",
Image: config.Controllers.NodeLink,
Command: []string{"/nodelink-controller"},
Args: args,
Resources: resources,
},
{
Name: "machine-healthcheck-controller",
Image: config.Controllers.MachineHealthCheck,
Command: []string{"/machine-healthcheck"},
Args: args,
Resources: resources,
},
}
return containers
}
func newTerminationDaemonSet(config *OperatorConfig) *appsv1.DaemonSet {
template := newTerminationPodTemplateSpec(config)
return &appsv1.DaemonSet{
ObjectMeta: metav1.ObjectMeta{
Name: machineAPITerminationHandler,
Namespace: config.TargetNamespace,
Annotations: map[string]string{
maoOwnedAnnotation: "",
},
Labels: map[string]string{
"api": "clusterapi",
"k8s-app": "termination-handler",
},
},
Spec: appsv1.DaemonSetSpec{
Selector: &metav1.LabelSelector{
MatchLabels: map[string]string{
"api": "clusterapi",
"k8s-app": "termination-handler",
},
},
Template: *template,
},
}
}
func newTerminationPodTemplateSpec(config *OperatorConfig) *corev1.PodTemplateSpec {
containers := newTerminationContainers(config)
return &corev1.PodTemplateSpec{
ObjectMeta: metav1.ObjectMeta{
Labels: map[string]string{
"api": "clusterapi",
"k8s-app": "termination-handler",
},
},
Spec: corev1.PodSpec{
Containers: containers,
PriorityClassName: "system-node-critical",
NodeSelector: map[string]string{machinecontroller.MachineInterruptibleInstanceLabelName: ""},
ServiceAccountName: machineAPITerminationHandler,
HostNetwork: true,
},
}
}
func newTerminationContainers(config *OperatorConfig) []corev1.Container {
resources := corev1.ResourceRequirements{
Requests: map[corev1.ResourceName]resource.Quantity{
corev1.ResourceMemory: resource.MustParse("20Mi"),
corev1.ResourceCPU: resource.MustParse("10m"),
},
}
terminationArgs := []string{
"--logtostderr=true",
"--v=3",
"--node-name=$(NODE_NAME)",
fmt.Sprintf("--namespace=%s", config.TargetNamespace),
"--poll-interval-seconds=5",
}
return []corev1.Container{
{
Name: "termination-handler",
Image: config.Controllers.TerminationHandler,
Command: []string{"/termination-handler"},
Args: terminationArgs,
Resources: resources,
Env: []corev1.EnvVar{
{
Name: "NODE_NAME",
ValueFrom: &corev1.EnvVarSource{
FieldRef: &corev1.ObjectFieldSelector{
FieldPath: "spec.nodeName",
},
},
},
},
},
}
}