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feat: Add AI insight component scraper (#307)
* cluster ai insight component scraper * improve fetching components * add Node status
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,175 @@ | ||
| package scraper | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "sync" | ||
| "time" | ||
|
|
||
| corev1 "k8s.io/api/core/v1" | ||
|
|
||
| "github.com/pluralsh/deployment-operator/internal/helpers" | ||
| "github.com/pluralsh/deployment-operator/pkg/common" | ||
| agentcommon "github.com/pluralsh/deployment-operator/pkg/common" | ||
| common2 "github.com/pluralsh/deployment-operator/pkg/controller/common" | ||
| "github.com/pluralsh/polly/algorithms" | ||
| "github.com/pluralsh/polly/containers" | ||
| "github.com/samber/lo" | ||
| "k8s.io/apimachinery/pkg/apis/meta/v1/unstructured" | ||
| "k8s.io/apimachinery/pkg/runtime/schema" | ||
| "k8s.io/klog/v2" | ||
| ctrclient "sigs.k8s.io/controller-runtime/pkg/client" | ||
| ) | ||
|
|
||
| const ( | ||
| name = "Ai Insight Component Scraper" | ||
| nodeKind = "Node" | ||
| ) | ||
|
|
||
| var ( | ||
| aiInsightComponents *AiInsightComponents | ||
| ) | ||
|
|
||
| func init() { | ||
| aiInsightComponents = &AiInsightComponents{ | ||
| items: containers.NewSet[Component](), | ||
| } | ||
| } | ||
|
|
||
| type AiInsightComponents struct { | ||
| mu sync.RWMutex | ||
| items containers.Set[Component] | ||
| fresh bool | ||
| } | ||
|
|
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| type Component struct { | ||
| Gvk schema.GroupVersionKind | ||
| Name string | ||
| Namespace string | ||
| } | ||
|
|
||
| func (c Component) String() string { | ||
| return fmt.Sprintf("GVK=%s, Name=%s, Namespace=%s", c.Gvk.String(), c.Name, c.Namespace) | ||
| } | ||
|
|
||
| func GetAiInsightComponents() *AiInsightComponents { | ||
| return aiInsightComponents | ||
| } | ||
|
|
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| func (s *AiInsightComponents) Clear() { | ||
| s.mu.Lock() | ||
| defer s.mu.Unlock() | ||
| s.items = containers.NewSet[Component]() | ||
| } | ||
|
|
||
| func (s *AiInsightComponents) AddItem(c Component) { | ||
| s.mu.Lock() | ||
| defer s.mu.Unlock() | ||
| s.items.Add(c) | ||
| } | ||
|
|
||
| func (s *AiInsightComponents) GetItems() []Component { | ||
| s.mu.RLock() | ||
| defer s.mu.RUnlock() | ||
| return s.items.List() | ||
| } | ||
|
|
||
| func (s *AiInsightComponents) Len() int { | ||
| s.mu.RLock() | ||
| defer s.mu.RUnlock() | ||
| return s.items.Len() | ||
| } | ||
|
|
||
| func (s *AiInsightComponents) IsFresh() bool { | ||
| s.mu.RLock() | ||
| defer s.mu.RUnlock() | ||
| return s.fresh | ||
| } | ||
|
|
||
| func (s *AiInsightComponents) SetFresh(f bool) { | ||
| s.mu.Lock() | ||
| defer s.mu.Unlock() | ||
| s.fresh = f | ||
| } | ||
|
|
||
| func RunAiInsightComponentScraperInBackgroundOrDie(ctx context.Context, k8sClient ctrclient.Client) { | ||
| klog.Info("starting ", name) | ||
| scrapeResources := []schema.GroupVersionKind{ | ||
| {Group: "apps", Version: "v1", Kind: "Deployment"}, | ||
| {Group: "apps", Version: "v1", Kind: "DaemonSet"}, | ||
| {Group: "apps", Version: "v1", Kind: "StatefulSet"}, | ||
| {Group: "", Version: "v1", Kind: nodeKind}, | ||
| } | ||
|
|
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| err := helpers.BackgroundPollUntilContextCancel(ctx, 15*time.Minute, true, true, func(_ context.Context) (done bool, err error) { | ||
| GetAiInsightComponents().Clear() | ||
|
|
||
| for _, gvk := range scrapeResources { | ||
| if err := setUnhealthyComponents(ctx, k8sClient, gvk); err != nil { | ||
| klog.Error(err, "can't set update component status") | ||
| } | ||
| } | ||
| GetAiInsightComponents().SetFresh(true) | ||
|
|
||
| return false, nil | ||
| }) | ||
| if err != nil { | ||
| panic(fmt.Errorf("failed to start %s in background: %w", name, err)) | ||
| } | ||
| } | ||
|
|
||
| func setUnhealthyComponents(ctx context.Context, k8sClient ctrclient.Client, gvk schema.GroupVersionKind, opts ...ctrclient.ListOption) error { | ||
| pager := listResources(ctx, k8sClient, gvk) | ||
| for pager.HasNext() { | ||
| items, err := pager.NextPage() | ||
| if err != nil { | ||
| return err | ||
| } | ||
| for _, item := range items { | ||
| health, err := common.GetResourceHealth(&item) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| if health.Status == common.HealthStatusDegraded { | ||
| GetAiInsightComponents().AddItem(Component{ | ||
| Gvk: gvk, | ||
| Name: item.GetName(), | ||
| Namespace: item.GetNamespace(), | ||
| }) | ||
| } | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func listResources(ctx context.Context, k8sClient ctrclient.Client, gvk schema.GroupVersionKind) *algorithms.Pager[unstructured.Unstructured] { | ||
| var opts []ctrclient.ListOption | ||
| manageByOperatorLabels := map[string]string{ | ||
| agentcommon.ManagedByLabel: agentcommon.AgentLabelValue, | ||
| } | ||
| ml := ctrclient.MatchingLabels(manageByOperatorLabels) | ||
| if gvk != corev1.SchemeGroupVersion.WithKind(nodeKind) { | ||
| opts = append(opts, ml) | ||
| } | ||
|
|
||
| fetch := func(page *string, size int64) ([]unstructured.Unstructured, *algorithms.PageInfo, error) { | ||
| list := &unstructured.UnstructuredList{} | ||
| list.SetGroupVersionKind(gvk) | ||
|
|
||
| if page != nil { | ||
| opts = append(opts, ctrclient.Continue(*page)) | ||
| } | ||
| opts = append(opts, ctrclient.Limit(size)) | ||
| // List resources | ||
| if err := k8sClient.List(ctx, list, opts...); err != nil { | ||
| return nil, nil, fmt.Errorf("failed to list resources: %w", err) | ||
| } | ||
| pageInfo := &algorithms.PageInfo{ | ||
| HasNext: list.GetContinue() != "", | ||
| After: lo.ToPtr(list.GetContinue()), | ||
| PageSize: size, | ||
| } | ||
| return list.Items, pageInfo, nil | ||
| } | ||
| return algorithms.NewPager[unstructured.Unstructured](common2.DefaultPageSize, fetch) | ||
| } |