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feat: add tailscale acls support for OlaresManifest.yaml (#122)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,194 @@ | ||
| package controllers | ||
|
|
||
| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "fmt" | ||
|
|
||
| "bytetrade.io/web3os/app-service/api/app.bytetrade.io/v1alpha1" | ||
| "bytetrade.io/web3os/app-service/pkg/utils" | ||
|
|
||
| appsv1 "k8s.io/api/apps/v1" | ||
| corev1 "k8s.io/api/core/v1" | ||
| "k8s.io/apimachinery/pkg/types" | ||
| "k8s.io/klog/v2" | ||
| ctrl "sigs.k8s.io/controller-runtime" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| "sigs.k8s.io/controller-runtime/pkg/controller" | ||
| "sigs.k8s.io/controller-runtime/pkg/event" | ||
| "sigs.k8s.io/controller-runtime/pkg/handler" | ||
| "sigs.k8s.io/controller-runtime/pkg/log" | ||
| "sigs.k8s.io/controller-runtime/pkg/predicate" | ||
| "sigs.k8s.io/controller-runtime/pkg/reconcile" | ||
| "sigs.k8s.io/controller-runtime/pkg/source" | ||
| ) | ||
|
|
||
| const tailScaleACLPolicyMd5Key = "tailscale-acl-md5" | ||
|
|
||
| var defaultHTTPSACL = v1alpha1.ACL{ | ||
| Action: "accept", | ||
| Src: []string{"*"}, | ||
| Proto: "", | ||
| Dst: []string{"*:443"}, | ||
| } | ||
|
|
||
| type ACLPolicy struct { | ||
| ACLs []v1alpha1.ACL `json:"acls"` | ||
| AutoApprovers AutoApprovers `json:"autoApprovers"` | ||
| } | ||
|
|
||
| type AutoApprovers struct { | ||
| Routes map[string][]string `json:"routes"` | ||
| ExitNode []string `json:"exitNode"` | ||
| } | ||
|
|
||
| type TailScaleACLController struct { | ||
| client.Client | ||
| } | ||
|
|
||
| func (r *TailScaleACLController) SetUpWithManager(mgr ctrl.Manager) error { | ||
| c, err := controller.New("app's tailscale acls manager controller", mgr, controller.Options{ | ||
| Reconciler: r, | ||
| }) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| err = c.Watch( | ||
| &source.Kind{Type: &v1alpha1.Application{}}, | ||
| handler.EnqueueRequestsFromMapFunc( | ||
| func(obj client.Object) []reconcile.Request { | ||
| app, ok := obj.(*v1alpha1.Application) | ||
| if !ok { | ||
| return nil | ||
| } | ||
| return []reconcile.Request{{NamespacedName: types.NamespacedName{ | ||
| Name: app.Name, | ||
| Namespace: app.Spec.Owner, | ||
| }}} | ||
| }), | ||
| predicate.Funcs{ | ||
| CreateFunc: func(e event.CreateEvent) bool { | ||
| return true | ||
| }, | ||
| UpdateFunc: func(e event.UpdateEvent) bool { | ||
| return true | ||
| }, | ||
| DeleteFunc: func(e event.DeleteEvent) bool { | ||
| return true | ||
| }, | ||
| }, | ||
| ) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (r *TailScaleACLController) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) { | ||
| _ = log.FromContext(ctx) | ||
| klog.Infof("reconcile tailscale acls request name=%v, owner=%v", req.Name, req.Namespace) | ||
|
|
||
| // for this request req.Namespace is owner | ||
| // list all apps by owner and generate acls by owner | ||
| var apps v1alpha1.ApplicationList | ||
| err := r.List(ctx, &apps) | ||
| if err != nil { | ||
| return ctrl.Result{}, err | ||
| } | ||
| filteredApps := make([]v1alpha1.Application, 0) | ||
| for _, app := range apps.Items { | ||
| if app.Spec.Owner != req.Namespace { | ||
| continue | ||
| } | ||
| filteredApps = append(filteredApps, app) | ||
| } | ||
|
|
||
| tailScaleACLConfig := "tailscale-acl" | ||
| headScaleNamespace := fmt.Sprintf("user-space-%s", req.Namespace) | ||
|
|
||
| // calculate acls | ||
| acls := make([]v1alpha1.ACL, 0) | ||
| for _, app := range filteredApps { | ||
| acls = append(acls, app.Spec.TailScaleACLs...) | ||
| } | ||
| aclPolicyByte, err := makeACLPolicy(acls) | ||
| if err != nil { | ||
| return ctrl.Result{}, err | ||
| } | ||
| klog.Infof("aclPolicyByte:string: %s", string(aclPolicyByte)) | ||
| configMap := &corev1.ConfigMap{} | ||
| err = r.Get(ctx, types.NamespacedName{Name: tailScaleACLConfig, Namespace: headScaleNamespace}, configMap) | ||
| if err != nil { | ||
| return ctrl.Result{}, err | ||
| } | ||
| oldTailScaleACLPolicyMd5Sum := "" | ||
| if configMap.Annotations != nil { | ||
| oldTailScaleACLPolicyMd5Sum = configMap.Annotations[tailScaleACLPolicyMd5Key] | ||
| } | ||
| curTailScaleACLPolicyMd5Sum := utils.Md5String(string(aclPolicyByte)) | ||
|
|
||
| if curTailScaleACLPolicyMd5Sum != oldTailScaleACLPolicyMd5Sum { | ||
| if configMap.Annotations == nil { | ||
| configMap.Annotations = make(map[string]string) | ||
| } | ||
| if configMap.Data == nil { | ||
| configMap.Data = make(map[string]string) | ||
| } | ||
|
|
||
| configMap.Annotations[tailScaleACLPolicyMd5Key] = curTailScaleACLPolicyMd5Sum | ||
| configMap.Data["acl.json"] = string(aclPolicyByte) | ||
| err = r.Update(ctx, configMap) | ||
| if err != nil { | ||
| return ctrl.Result{}, err | ||
| } | ||
| } | ||
|
|
||
| deploy := &appsv1.Deployment{} | ||
| err = r.Get(ctx, types.NamespacedName{Namespace: headScaleNamespace, Name: "headscale"}, deploy) | ||
| if err != nil { | ||
| return ctrl.Result{}, err | ||
| } | ||
| headScaleACLMd5 := "" | ||
| if deploy.Spec.Template.Annotations != nil { | ||
| headScaleACLMd5 = deploy.Spec.Template.Annotations[tailScaleACLPolicyMd5Key] | ||
| } | ||
| if headScaleACLMd5 != curTailScaleACLPolicyMd5Sum { | ||
| if deploy.Spec.Template.Annotations == nil { | ||
| deploy.Spec.Template.Annotations = make(map[string]string) | ||
| } | ||
|
|
||
| // update headscale deploy template annotations for rolling update | ||
| deploy.Spec.Template.Annotations[tailScaleACLPolicyMd5Key] = curTailScaleACLPolicyMd5Sum | ||
| err = r.Update(ctx, deploy) | ||
| if err != nil { | ||
| return ctrl.Result{}, err | ||
| } | ||
| klog.Infof("rolling update headscale...") | ||
| } | ||
|
|
||
| return ctrl.Result{}, nil | ||
| } | ||
|
|
||
| func makeACLPolicy(acls []v1alpha1.ACL) ([]byte, error) { | ||
| acls = append(acls, defaultHTTPSACL) | ||
| for i := range acls { | ||
| acls[i].Action = "accept" | ||
| acls[i].Src = []string{"*"} | ||
| } | ||
| aclPolicy := ACLPolicy{ | ||
| ACLs: acls, | ||
| AutoApprovers: AutoApprovers{ | ||
| Routes: map[string][]string{ | ||
| "10.0.0.0/8": {"default"}, | ||
| "172.16.0.0/12": {"default"}, | ||
| "192.168.0.0/16": {"default"}, | ||
| }, | ||
| ExitNode: []string{}, | ||
| }, | ||
| } | ||
| aclPolicyByte, err := json.Marshal(aclPolicy) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return aclPolicyByte, nil | ||
| } |
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