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Merge pull request #9 from uselagoon/feature/adds_webservice
Feature - adds endpoint for gathering facts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,12 +1,16 @@ | ||
| domain: lagoon.sh | ||
| layout: | ||
| - go.kubebuilder.io/v3 | ||
| projectName: watchconfigmaps | ||
| ProjectName: watchconfigmaps | ||
| repo: lagoon.sh/insights-remote | ||
| resources: | ||
| - controller: true | ||
| group: core | ||
| kind: ConfigMap | ||
| path: k8s.io/api/core/v1 | ||
| version: v1 | ||
| - controller: true | ||
| domain: lagoon.sh | ||
| kind: Namespace | ||
| version: v1 | ||
| version: "3" |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,239 @@ | ||
| /* | ||
| Copyright 2022. | ||
| 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 controllers | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
| "fmt" | ||
| corev1 "k8s.io/api/core/v1" | ||
| v1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/labels" | ||
| "k8s.io/apimachinery/pkg/runtime" | ||
| "k8s.io/apimachinery/pkg/selection" | ||
| "lagoon.sh/insights-remote/internal/tokens" | ||
| ctrl "sigs.k8s.io/controller-runtime" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| "sigs.k8s.io/controller-runtime/pkg/event" | ||
| "sigs.k8s.io/controller-runtime/pkg/log" | ||
| "sigs.k8s.io/controller-runtime/pkg/predicate" | ||
| ) | ||
|
|
||
| // NamespaceReconciler reconciles a Namespace object | ||
| type NamespaceReconciler struct { | ||
| client.Client | ||
| Scheme *runtime.Scheme | ||
| InsightsJWTSecret string | ||
| } | ||
|
|
||
| const insightsTokenLabel = "lagoon.sh/insights-token" | ||
|
|
||
| //+kubebuilder:rbac:groups=core,resources=namespaces,verbs=get;list;watch;create;update;patch;delete | ||
| //+kubebuilder:rbac:groups=core,resources=namespaces/status,verbs=get;update;patch | ||
| //+kubebuilder:rbac:groups=core,resources=namespaces/finalizers,verbs=update | ||
|
|
||
| // Reconcile is part of the main kubernetes reconciliation loop which aims to | ||
| // move the current state of the cluster closer to the desired state. | ||
| // TODO(user): Modify the Reconcile function to compare the state specified by | ||
| // the Namespace object against the actual cluster state, and then | ||
| // perform operations to make the cluster state reflect the state specified by | ||
| // the user. | ||
| // | ||
| // For more details, check Reconcile and its Result here: | ||
| // - https://pkg.go.dev/sigs.k8s.io/[email protected]/pkg/reconcile | ||
| func (r *NamespaceReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) { | ||
| log := log.FromContext(ctx) | ||
|
|
||
| var ns corev1.Namespace | ||
| if err := r.Get(ctx, req.NamespacedName, &ns); err != nil { | ||
| log.Error(err, "Unable to load Namespace") | ||
| return ctrl.Result{}, client.IgnoreNotFound(err) | ||
| } | ||
|
|
||
| secretList := &corev1.SecretList{} | ||
|
|
||
| labelSelectorParameters, err := labels.NewRequirement(insightsTokenLabel, selection.Exists, []string{}) | ||
|
|
||
| if err != nil { | ||
| log.Error(err, fmt.Sprintf("bad requirement: %v\n\n", err)) | ||
| } | ||
|
|
||
| labelSelector := labels.NewSelector() | ||
| labelSelector = labelSelector.Add(*labelSelectorParameters) | ||
|
|
||
| listOptions := client.ListOptions{ | ||
| LabelSelector: labelSelector, | ||
| Namespace: ns.GetName(), | ||
| } | ||
|
|
||
| err = r.Client.List(ctx, secretList, &listOptions) | ||
| if err != nil { | ||
| return ctrl.Result{}, err | ||
| } | ||
|
|
||
| foundItem := false | ||
| deleteSecretMessage := "" | ||
| for _, v := range secretList.Items { | ||
| log.Info(fmt.Sprintf("Found secret with name '%v' and namespace '%v'", v.Name, v.Namespace)) | ||
| // let's verify this to make sure it looks good | ||
| if val, ok := v.Data["INSIGHTS_TOKEN"]; ok { | ||
| namespaceDetails, err := tokens.ValidateAndExtractNamespaceDetailsFromToken(r.InsightsJWTSecret, string(val)) | ||
|
|
||
| if err != nil { | ||
| log.Error(err, "Unable to decode token") | ||
| return ctrl.Result{}, err | ||
| } | ||
| if namespaceDetails.Namespace != ns.GetName() { | ||
| deleteSecretMessage = fmt.Sprintf("Token is invalid - namespaces '%v'!='%v'.", ns.GetName(), namespaceDetails.Namespace) | ||
| } | ||
| foundItem = true | ||
| } else { | ||
| //we delete this secret straight | ||
| deleteSecretMessage = "key INSIGHTS_TOKEN does not exist. Secret is invalid." | ||
| } | ||
| if deleteSecretMessage != "" { | ||
| log.Info(fmt.Sprintf("Removing secret '%v':'%v' - %v", ns.GetName(), v.Name, deleteSecretMessage)) | ||
| err = r.Client.Delete(ctx, &v) | ||
| if err != nil { | ||
| log.Error(err, "Unable to delete secret") | ||
| return ctrl.Result{}, err | ||
| } | ||
| } | ||
| } | ||
|
|
||
| if !foundItem { //let's create the token and secret | ||
| labels := ns.GetLabels() | ||
|
|
||
| environmentId, err := getValueFromMap(labels, "lagoon.sh/environmentId") | ||
| if err != nil { | ||
| return ctrl.Result{}, errors.New("Unable to find lagoon.sh/environmentId label in namespace " + ns.GetName() + " failed creating insights token") | ||
| } | ||
| projectName, err := getValueFromMap(labels, "lagoon.sh/project") | ||
| if err != nil { | ||
| return ctrl.Result{}, errors.New("Unable to find lagoon.sh/project label in namespace" + ns.GetName() + " failed creating insights token") | ||
| } | ||
| environmentName, err := getValueFromMap(labels, "lagoon.sh/environment") | ||
| if err != nil { | ||
| return ctrl.Result{}, errors.New("Unable to find lagoon.sh/environment label in namespace " + ns.GetName() + " failed creating insights token") | ||
| } | ||
|
|
||
| jwt, err := tokens.GenerateTokenForNamespace(r.InsightsJWTSecret, tokens.NamespaceDetails{ | ||
| Namespace: ns.GetName(), | ||
| EnvironmentId: environmentId, | ||
| ProjectName: projectName, | ||
| EnvironmentName: environmentName, | ||
| }) | ||
| if err != nil { | ||
| log.Error(err, "Unable to generate jwt for namespace '%v'", ns.GetName()) | ||
| } | ||
|
|
||
| newSecret := corev1.Secret{ | ||
| ObjectMeta: v1.ObjectMeta{ | ||
| Name: "insights-token", | ||
| Namespace: ns.GetName(), | ||
| Labels: map[string]string{ | ||
| insightsTokenLabel: "true", | ||
| "lagoon.sh/dynamic-secret": "insights-token", //This will ensure that this is dynamically mounted in pods | ||
| }, | ||
| Annotations: map[string]string{}, | ||
| }, | ||
| Immutable: nil, | ||
| Data: map[string][]byte{ | ||
| "INSIGHTS_TOKEN": []byte(jwt), | ||
| }, | ||
| } | ||
| err = r.Client.Create(ctx, &newSecret) | ||
| if err != nil { | ||
| return ctrl.Result{}, err | ||
| } | ||
| } | ||
|
|
||
| return ctrl.Result{}, nil | ||
| } | ||
|
|
||
| func getValueFromMap(labels map[string]string, key string) (string, error) { | ||
| if v, okay := labels[key]; !okay { | ||
| return "", errors.New("key not found") | ||
| } else { | ||
| return v, nil | ||
| } | ||
| } | ||
|
|
||
| func activeNamespacePredicate(tokenTargetLabel string) predicate.Predicate { | ||
| return predicate.Funcs{ | ||
| CreateFunc: func(event event.CreateEvent) bool { | ||
| labels := event.Object.GetLabels() | ||
| _, err := getValueFromMap(labels, "lagoon.sh/environmentId") | ||
| if err != nil { | ||
| return false | ||
| } | ||
| _, err = getValueFromMap(labels, "lagoon.sh/project") | ||
| if err != nil { | ||
| return false | ||
| } | ||
| _, err = getValueFromMap(labels, "lagoon.sh/environment") | ||
| if err != nil { | ||
| return false | ||
| } | ||
|
|
||
| if tokenTargetLabel != "" { | ||
| _, err = getValueFromMap(labels, tokenTargetLabel) | ||
| if err != nil { | ||
| return false | ||
| } | ||
| } | ||
|
|
||
| return true | ||
| }, | ||
| DeleteFunc: func(deleteEvent event.DeleteEvent) bool { | ||
| return false | ||
| }, | ||
| UpdateFunc: func(updateEvent event.UpdateEvent) bool { | ||
| labels := updateEvent.ObjectNew.GetLabels() | ||
| _, err := getValueFromMap(labels, "lagoon.sh/environmentId") | ||
| if err != nil { | ||
| return false | ||
| } | ||
| _, err = getValueFromMap(labels, "lagoon.sh/project") | ||
| if err != nil { | ||
| return false | ||
| } | ||
| _, err = getValueFromMap(labels, "lagoon.sh/environment") | ||
| if err != nil { | ||
| return false | ||
| } | ||
| if tokenTargetLabel != "" { | ||
| _, err = getValueFromMap(labels, tokenTargetLabel) | ||
| if err != nil { | ||
| return false | ||
| } | ||
| } | ||
| return true | ||
| }, | ||
| GenericFunc: func(genericEvent event.GenericEvent) bool { | ||
| return false | ||
| }, | ||
| } | ||
| } | ||
|
|
||
| // SetupWithManager sets up the controller with the Manager. | ||
| func (r *NamespaceReconciler) SetupWithManager(mgr ctrl.Manager, tokenTargetLabel string) error { | ||
| return ctrl.NewControllerManagedBy(mgr). | ||
| For(&corev1.Namespace{}). | ||
| WithEventFilter(activeNamespacePredicate(tokenTargetLabel)). | ||
| Complete(r) | ||
| } |
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