Implement last seen based exporter online status

.golangci.yml

@@ -1,40 +1,45 @@
+version: "2"
 run:
-  timeout: 5m
   allow-parallel-runners: true
-
-issues:
-  # don't skip warning about doc comments
-  # don't exclude the default set of lint
-  exclude-use-default: false
-  # restore some of the defaults
-  # (fill in the rest as needed)
-  exclude-rules:
-    - path: "api/*"
-      linters:
-        - lll
-    - path: "internal/*"
-      linters:
-        - dupl
-        - lll
 linters:
-  disable-all: true
+  default: none
   enable:
+    - copyloopvar
     - dupl
     - errcheck
-    - copyloopvar
     - ginkgolinter
     - goconst
     - gocyclo
-    - gofmt
-    - goimports
-    - gosimple
     - govet
     - ineffassign
     - lll
     - misspell
     - nakedret
     - staticcheck
-    - typecheck
     - unconvert
     - unparam
     - unused
+  exclusions:
+    generated: lax
+    rules:
+      - linters:
+          - lll
+        path: api/*
+      - linters:
+          - dupl
+          - lll
+        path: internal/*
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
+formatters:
+  enable:
+    - gofmt
+    - goimports
+  exclusions:
+    generated: lax
+    paths:
+      - third_party$
+      - builtin$
+      - examples$

Makefile

@@ -180,7 +180,7 @@ GRPCURL = $(LOCALBIN)/grpcurl
 KUSTOMIZE_VERSION ?= v5.4.1
 CONTROLLER_TOOLS_VERSION ?= v0.16.3
 ENVTEST_VERSION ?= release-0.18
-GOLANGCI_LINT_VERSION ?= v1.61.0
+GOLANGCI_LINT_VERSION ?= v2.1.2
 KIND_VERSION ?= v0.27.0
 GRPCURL_VERSION ?= v1.9.2
 
@@ -202,7 +202,7 @@ $(ENVTEST): $(LOCALBIN)
 .PHONY: golangci-lint
 golangci-lint: $(GOLANGCI_LINT) ## Download golangci-lint locally if necessary.
 $(GOLANGCI_LINT): $(LOCALBIN)
-	$(call go-install-tool,$(GOLANGCI_LINT),github.com/golangci/golangci-lint/cmd/golangci-lint,$(GOLANGCI_LINT_VERSION))
+	$(call go-install-tool,$(GOLANGCI_LINT),github.com/golangci/golangci-lint/v2/cmd/golangci-lint,$(GOLANGCI_LINT_VERSION))
 
 .PHONY: grpcurl
 grpcurl: $(GRPCURL) ## Download grpcurl locally if necessary.

api/v1alpha1/exporter_types.go

@@ -37,6 +37,7 @@ type ExporterStatus struct {
 	Credential *corev1.LocalObjectReference `json:"credential,omitempty"`
 	Devices    []Device                     `json:"devices,omitempty"`
 	LeaseRef   *corev1.LocalObjectReference `json:"leaseRef,omitempty"`
+	LastSeen   metav1.Time                  `json:"lastSeen,omitempty"`
 	Endpoint   string                       `json:"endpoint,omitempty"`
 }
 

deploy/helm/jumpstarter/charts/jumpstarter-controller/templates/crds/jumpstarter.dev_exporters.yaml

@@ -135,6 +135,9 @@ spec:
                 type: array
               endpoint:
                 type: string
+              lastSeen:
+                format: date-time
+                type: string
               leaseRef:
                 description: |-
                   LocalObjectReference contains enough information to let you locate the

internal/controller/client_controller.go

@@ -23,7 +23,6 @@ import (
 	corev1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 	ctrl "sigs.k8s.io/controller-runtime"
-	"sigs.k8s.io/controller-runtime/pkg/client"
 	kclient "sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/controller-runtime/pkg/log"
 
@@ -33,7 +32,7 @@ import (
 
 // ClientReconciler reconciles a Client object
 type ClientReconciler struct {
-	client.Client
+	kclient.Client
 	Scheme *runtime.Scheme
 	Signer *oidc.Signer
 }

internal/controller/exporter_controller.go

@@ -19,8 +19,11 @@ package controller
 import (
 	"context"
 	"fmt"
+	"time"
 
 	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/api/meta"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 	ctrl "sigs.k8s.io/controller-runtime"
 	"sigs.k8s.io/controller-runtime/pkg/client"
@@ -72,6 +75,11 @@ func (r *ExporterReconciler) Reconcile(ctx context.Context, req ctrl.Request) (c
 		return ctrl.Result{}, err
 	}
 
+	result, err := r.reconcileStatusConditionsOnline(ctx, &exporter)
+	if err != nil {
+		return ctrl.Result{}, err
+	}
+
 	if err := r.reconcileStatusEndpoint(ctx, &exporter); err != nil {
 		return ctrl.Result{}, err
 	}
@@ -80,7 +88,7 @@ func (r *ExporterReconciler) Reconcile(ctx context.Context, req ctrl.Request) (c
 		return RequeueConflict(logger, ctrl.Result{}, err)
 	}
 
-	return ctrl.Result{}, nil
+	return result, nil
 }
 
 func (r *ExporterReconciler) reconcileStatusCredential(
@@ -144,6 +152,64 @@ func (r *ExporterReconciler) reconcileStatusEndpoint(
 	return nil
 }
 
+// nolint:unparam
+func (r *ExporterReconciler) reconcileStatusConditionsOnline(
+	_ context.Context,
+	exporter *jumpstarterdevv1alpha1.Exporter,
+) (ctrl.Result, error) {
+	var requeueAfter time.Duration = 0
+
+	if exporter.Status.LastSeen.IsZero() {
+		meta.SetStatusCondition(&exporter.Status.Conditions, metav1.Condition{
+			Type:               string(jumpstarterdevv1alpha1.ExporterConditionTypeOnline),
+			Status:             metav1.ConditionFalse,
+			ObservedGeneration: exporter.Generation,
+			Reason:             "Seen",
+			Message:            "Never seen",
+		})
+		// marking the exporter offline, no need to requeue
+	} else if time.Since(exporter.Status.LastSeen.Time) > time.Minute {
+		meta.SetStatusCondition(&exporter.Status.Conditions, metav1.Condition{
+			Type:               string(jumpstarterdevv1alpha1.ExporterConditionTypeOnline),
+			Status:             metav1.ConditionFalse,
+			ObservedGeneration: exporter.Generation,
+			Reason:             "Seen",
+			Message:            "Last seen more than 1 minute ago",
+		})
+		// marking the exporter offline, no need to requeue
+	} else {
+		meta.SetStatusCondition(&exporter.Status.Conditions, metav1.Condition{
+			Type:               string(jumpstarterdevv1alpha1.ExporterConditionTypeOnline),
+			Status:             metav1.ConditionTrue,
+			ObservedGeneration: exporter.Generation,
+			Reason:             "Seen",
+			Message:            "Lase seen less than 1 minute ago",
+		})
+		// marking the exporter online, requeue after 30 seconds
+		requeueAfter = time.Second * 30
+	}
+
+	if exporter.Status.Devices == nil {
+		meta.SetStatusCondition(&exporter.Status.Conditions, metav1.Condition{
+			Type:               string(jumpstarterdevv1alpha1.ExporterConditionTypeRegistered),
+			Status:             metav1.ConditionFalse,
+			ObservedGeneration: exporter.Generation,
+			Reason:             "Unregister",
+		})
+	} else {
+		meta.SetStatusCondition(&exporter.Status.Conditions, metav1.Condition{
+			Type:               string(jumpstarterdevv1alpha1.ExporterConditionTypeRegistered),
+			Status:             metav1.ConditionTrue,
+			ObservedGeneration: exporter.Generation,
+			Reason:             "Register",
+		})
+	}
+
+	return ctrl.Result{
+		RequeueAfter: requeueAfter,
+	}, nil
+}
+
 // SetupWithManager sets up the controller with the Manager.
 func (r *ExporterReconciler) SetupWithManager(mgr ctrl.Manager) error {
 	return ctrl.NewControllerManagedBy(mgr).

internal/controller/lease_controller.go

@@ -465,15 +465,13 @@ func filterOutOfflineExporters(matchingExporters []jumpstarterdevv1alpha1.Export
 	onlineExporters := slices.DeleteFunc(
 		matchingExporters,
 		func(exporter jumpstarterdevv1alpha1.Exporter) bool {
-			return !(true &&
-				meta.IsStatusConditionTrue(
-					exporter.Status.Conditions,
-					string(jumpstarterdevv1alpha1.ExporterConditionTypeRegistered),
-				) &&
-				meta.IsStatusConditionTrue(
-					exporter.Status.Conditions,
-					string(jumpstarterdevv1alpha1.ExporterConditionTypeOnline),
-				))
+			return !true || !meta.IsStatusConditionTrue(
+				exporter.Status.Conditions,
+				string(jumpstarterdevv1alpha1.ExporterConditionTypeRegistered),
+			) || !meta.IsStatusConditionTrue(
+				exporter.Status.Conditions,
+				string(jumpstarterdevv1alpha1.ExporterConditionTypeOnline),
+			)
 		},
 	)
 	return onlineExporters

internal/controller/lease_controller_test.go

@@ -339,6 +339,13 @@ func setExporterOnlineConditions(ctx context.Context, name string, status metav1
 		Status: status,
 		Reason: "dummy",
 	})
+	if status == metav1.ConditionTrue {
+		exporter.Status.Devices = []jumpstarterdevv1alpha1.Device{{}}
+		exporter.Status.LastSeen = metav1.Now()
+	} else {
+		exporter.Status.Devices = nil
+		exporter.Status.LastSeen = metav1.NewTime(metav1.Now().Add(-time.Minute * 2))
+	}
 	Expect(k8sClient.Status().Update(ctx, exporter)).To(Succeed())
 }
 

internal/controller/secret_helpers.go

@@ -6,7 +6,6 @@ import (
 	"github.com/jumpstarter-dev/jumpstarter-controller/internal/oidc"
 	corev1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/errors"
-	apisv1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 	"sigs.k8s.io/controller-runtime/pkg/client"
@@ -23,7 +22,7 @@ func ensureSecret(
 	scheme *runtime.Scheme,
 	signer *oidc.Signer,
 	subject string,
-	owner apisv1.Object,
+	owner metav1.Object,
 ) (*corev1.Secret, error) {
 	logger := log.FromContext(ctx).WithName("ensureSecret")
 	var secret corev1.Secret