/
helpers.go
228 lines (198 loc) · 7.09 KB
/
helpers.go
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package controller
import (
"context"
"hash/fnv"
"sort"
"time"
agentv1beta "github.com/lightrun-platform/lightrun-k8s-operator/api/v1beta"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/api/meta"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/reconcile"
)
const (
reconcileTypeReady = "Ready"
reconcileTypeProgressing = "ReconcileProgressing"
reconcileTypeNotProgressing = "ReconcileFailed"
)
func (r *LightrunJavaAgentReconciler) mapDeploymentToAgent(ctx context.Context, obj client.Object) []reconcile.Request {
deployment := obj.(*appsv1.Deployment)
var lightrunJavaAgentList agentv1beta.LightrunJavaAgentList
if err := r.List(ctx, &lightrunJavaAgentList,
client.InNamespace(deployment.Namespace),
client.MatchingFields{deploymentNameIndexField: deployment.Name},
); err != nil {
r.Log.Error(err, "could not list LightrunJavaAgentList. "+
"change to deployment will not be reconciled.",
deployment.Name, deployment.Namespace)
return nil
}
requests := make([]reconcile.Request, len(lightrunJavaAgentList.Items))
for i, lightrunJavaAgent := range lightrunJavaAgentList.Items {
requests[i] = reconcile.Request{
NamespacedName: client.ObjectKeyFromObject(&lightrunJavaAgent),
}
}
return requests
}
func (r *LightrunJavaAgentReconciler) mapSecretToAgent(ctx context.Context, obj client.Object) []reconcile.Request {
secret := obj.(*corev1.Secret)
var lightrunJavaAgentList agentv1beta.LightrunJavaAgentList
if err := r.List(ctx, &lightrunJavaAgentList,
client.InNamespace(secret.Namespace),
client.MatchingFields{secretNameIndexField: secret.Name},
); err != nil {
r.Log.Error(err, "could not list LightrunJavaAgentList. "+
"change to secret will not be reconciled.",
secret.Name, secret.Namespace)
return nil
}
requests := make([]reconcile.Request, len(lightrunJavaAgentList.Items))
for i, lightrunJavaAgent := range lightrunJavaAgentList.Items {
requests[i] = reconcile.Request{
NamespacedName: client.ObjectKeyFromObject(&lightrunJavaAgent),
}
}
return requests
}
func (r *LightrunJavaAgentReconciler) addFinalizer(ctx context.Context, lightrunJavaAgent *agentv1beta.LightrunJavaAgent, finalizerName string) error {
patch := client.MergeFrom(lightrunJavaAgent.DeepCopy())
lightrunJavaAgent.ObjectMeta.Finalizers = append(lightrunJavaAgent.ObjectMeta.Finalizers, finalizerName)
err := r.Patch(ctx, lightrunJavaAgent, patch)
return err
}
func (r *LightrunJavaAgentReconciler) removeFinalizer(ctx context.Context, lightrunJavaAgent *agentv1beta.LightrunJavaAgent, finalizerName string) error {
patch := client.MergeFrom(lightrunJavaAgent.DeepCopy())
lightrunJavaAgent.ObjectMeta.Finalizers = removeString(lightrunJavaAgent.ObjectMeta.Finalizers, finalizerName)
err := r.Patch(ctx, lightrunJavaAgent, patch)
return err
}
func (r *LightrunJavaAgentReconciler) successStatus(ctx context.Context, instance *agentv1beta.LightrunJavaAgent, reconcileType string) (reconcile.Result, error) {
condition := metav1.Condition{
Type: reconcileType,
LastTransitionTime: metav1.Now(),
ObservedGeneration: instance.GetGeneration(),
Reason: "reconcileSucceeded",
Status: metav1.ConditionTrue,
}
SetStatusCondition(&instance.Status.Conditions, condition)
instance.Status.DeploymentStatus = r.findLastConditionType(&instance.Status.Conditions)
err := r.Status().Update(ctx, instance)
if err != nil {
if apierrors.IsConflict(err) {
r.Log.V(2).Info("unable to update status for", "object version", instance.GetResourceVersion(), "resource version expired, will trigger another reconcile cycle", "")
return reconcile.Result{Requeue: true}, nil
} else {
r.Log.Error(err, "unable to update status for", "object", instance)
}
return reconcile.Result{}, err
}
return reconcile.Result{}, nil
}
func (r *LightrunJavaAgentReconciler) errorStatus(ctx context.Context, instance *agentv1beta.LightrunJavaAgent, origError error) (reconcile.Result, error) {
condition := metav1.Condition{
Type: reconcileTypeNotProgressing,
LastTransitionTime: metav1.Now(),
Message: origError.Error(),
ObservedGeneration: instance.GetGeneration(),
Reason: "reconcileFailed",
Status: metav1.ConditionTrue,
}
SetStatusCondition(&instance.Status.Conditions, condition)
instance.Status.DeploymentStatus = r.findLastConditionType(&instance.Status.Conditions)
err := r.Status().Update(ctx, instance)
if err != nil {
if apierrors.IsConflict(err) {
r.Log.Info("unable to update status for", "object version", instance.GetResourceVersion(), "resource version expired, will trigger another reconcile cycle", "")
return reconcile.Result{Requeue: true}, nil
} else {
r.Log.Error(err, "unable to update status for", "object", instance)
}
return reconcile.Result{}, err
}
return reconcile.Result{}, origError
}
func (r *LightrunJavaAgentReconciler) findLastConditionType(conditions *[]metav1.Condition) string {
index := -1
var ts metav1.Time
for i, cond := range *conditions {
if index == -1 {
index = i
ts = cond.LastTransitionTime
continue
}
if ts.Before(&cond.LastTransitionTime) {
ts = cond.LastTransitionTime
index = i
}
}
return (*conditions)[index].Type
}
func containsString(slice []string, s string) bool {
for _, item := range slice {
if item == s {
return true
}
}
return false
}
func removeString(slice []string, s string) (result []string) {
for _, item := range slice {
if item == s {
continue
}
result = append(result, item)
}
return
}
func parseAgentConfig(config map[string]string) string {
var cm_data string
var keys []string
// sort keys to preserve order in hash
for k := range config {
keys = append(keys, k)
}
sort.Strings(keys)
for _, k := range keys {
cm_data = cm_data + k + "=" + config[k] + "\n"
}
return cm_data
}
func populateTags(tags []string, name string, metadata *AgentMetadata) {
newTags := []Tag{}
for _, tag := range tags {
newTags = append(newTags, Tag{Name: tag})
}
metadata.Registration.DisplayName = name
metadata.Registration.Tags = newTags
}
func hash(s string) uint64 {
h := fnv.New64a()
h.Write([]byte(s))
return h.Sum64()
}
func SetStatusCondition(conditions *[]metav1.Condition, newCondition metav1.Condition) {
if conditions == nil {
return
}
existingCondition := meta.FindStatusCondition(*conditions, newCondition.Type)
if existingCondition == nil {
if newCondition.LastTransitionTime.IsZero() {
newCondition.LastTransitionTime = metav1.NewTime(time.Now())
}
*conditions = append(*conditions, newCondition)
return
}
existingCondition.Status = newCondition.Status
if !newCondition.LastTransitionTime.IsZero() {
existingCondition.LastTransitionTime = newCondition.LastTransitionTime
} else {
existingCondition.LastTransitionTime = metav1.NewTime(time.Now())
}
existingCondition.Reason = newCondition.Reason
existingCondition.Message = newCondition.Message
existingCondition.ObservedGeneration = newCondition.ObservedGeneration
}