mirror of
https://github.com/tailscale/tailscale.git
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05093ea7d9
cmd/k8s-operator/deploy/crds,k8s-operator/apis/v1alpha1: allow to define an exit node via Connector CR. Make it possible to define an exit node to be deployed to a Kubernetes cluster via Connector Custom resource. Also changes to Connector API so that one Connector corresponds to one Tailnet node that can be either a subnet router or an exit node or both. The Kubernetes operator parses Connector custom resource and, if .spec.isExitNode is set, configures that Tailscale node deployed for that connector as an exit node. Signed-off-by: Irbe Krumina <irbe@tailscale.com> Co-authored-by: Anton Tolchanov <anton@tailscale.com>
186 lines
5.6 KiB
Go
186 lines
5.6 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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//go:build !plan9
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package main
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import (
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"context"
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"testing"
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"go.uber.org/zap"
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appsv1 "k8s.io/api/apps/v1"
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corev1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/types"
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"sigs.k8s.io/controller-runtime/pkg/client/fake"
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tsapi "tailscale.com/k8s-operator/apis/v1alpha1"
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"tailscale.com/tstest"
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)
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func TestConnector(t *testing.T) {
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// Create a Connector that defines a Tailscale node that advertises
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// 10.40.0.0/14 route and acts as an exit node.
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cn := &tsapi.Connector{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test",
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UID: types.UID("1234-UID"),
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},
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TypeMeta: metav1.TypeMeta{
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Kind: tsapi.ConnectorKind,
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APIVersion: "tailscale.io/v1alpha1",
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},
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Spec: tsapi.ConnectorSpec{
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SubnetRouter: &tsapi.SubnetRouter{
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AdvertiseRoutes: []tsapi.Route{"10.40.0.0/14"},
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},
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ExitNode: true,
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},
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}
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fc := fake.NewClientBuilder().
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WithScheme(tsapi.GlobalScheme).
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WithObjects(cn).
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WithStatusSubresource(cn).
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Build()
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ft := &fakeTSClient{}
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zl, err := zap.NewDevelopment()
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if err != nil {
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t.Fatal(err)
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}
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cl := tstest.NewClock(tstest.ClockOpts{})
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cr := &ConnectorReconciler{
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Client: fc,
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ssr: &tailscaleSTSReconciler{
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Client: fc,
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tsClient: ft,
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defaultTags: []string{"tag:k8s"},
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operatorNamespace: "operator-ns",
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proxyImage: "tailscale/tailscale",
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},
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clock: cl,
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logger: zl.Sugar(),
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}
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expectReconciled(t, cr, "", "test")
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fullName, shortName := findGenName(t, fc, "", "test", "connector")
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opts := configOpts{
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stsName: shortName,
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secretName: fullName,
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parentType: "connector",
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hostname: "test-connector",
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shouldUseDeclarativeConfig: true,
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isExitNode: true,
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subnetRoutes: "10.40.0.0/14",
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confFileHash: "9321660203effb80983eaecc7b5ac5a8c53934926f46e895b9fe295dcfc5a904",
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}
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expectEqual(t, fc, expectedSecret(t, opts))
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expectEqual(t, fc, expectedSTS(opts))
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// Add another route to be advertised.
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mustUpdate[tsapi.Connector](t, fc, "", "test", func(conn *tsapi.Connector) {
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conn.Spec.SubnetRouter.AdvertiseRoutes = []tsapi.Route{"10.40.0.0/14", "10.44.0.0/20"}
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})
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opts.subnetRoutes = "10.40.0.0/14,10.44.0.0/20"
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opts.confFileHash = "fb6c4daf67425f983985750cd8d6f2beae77e614fcb34176604571f5623d6862"
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expectReconciled(t, cr, "", "test")
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expectEqual(t, fc, expectedSTS(opts))
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// Remove a route.
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mustUpdate[tsapi.Connector](t, fc, "", "test", func(conn *tsapi.Connector) {
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conn.Spec.SubnetRouter.AdvertiseRoutes = []tsapi.Route{"10.44.0.0/20"}
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})
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opts.subnetRoutes = "10.44.0.0/20"
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opts.confFileHash = "bacba177bcfe3849065cf6fee53d658a9bb4144197ac5b861727d69ea99742bb"
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expectReconciled(t, cr, "", "test")
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expectEqual(t, fc, expectedSTS(opts))
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// Remove the subnet router.
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mustUpdate[tsapi.Connector](t, fc, "", "test", func(conn *tsapi.Connector) {
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conn.Spec.SubnetRouter = nil
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})
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opts.subnetRoutes = ""
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opts.confFileHash = "7c421a99128eb80e79a285a82702f19f8f720615542a15bd794858a6275d8079"
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expectReconciled(t, cr, "", "test")
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expectEqual(t, fc, expectedSTS(opts))
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// Re-add the subnet router.
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mustUpdate[tsapi.Connector](t, fc, "", "test", func(conn *tsapi.Connector) {
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conn.Spec.SubnetRouter = &tsapi.SubnetRouter{
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AdvertiseRoutes: []tsapi.Route{"10.44.0.0/20"},
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}
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})
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opts.subnetRoutes = "10.44.0.0/20"
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opts.confFileHash = "bacba177bcfe3849065cf6fee53d658a9bb4144197ac5b861727d69ea99742bb"
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expectReconciled(t, cr, "", "test")
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expectEqual(t, fc, expectedSTS(opts))
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// Delete the Connector.
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if err = fc.Delete(context.Background(), cn); err != nil {
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t.Fatalf("error deleting Connector: %v", err)
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}
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expectRequeue(t, cr, "", "test")
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expectReconciled(t, cr, "", "test")
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expectMissing[appsv1.StatefulSet](t, fc, "operator-ns", shortName)
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expectMissing[corev1.Secret](t, fc, "operator-ns", fullName)
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// Create a Connector that advertises a route and is not an exit node.
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cn = &tsapi.Connector{
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ObjectMeta: metav1.ObjectMeta{
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Name: "test",
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UID: types.UID("1234-UID"),
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},
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TypeMeta: metav1.TypeMeta{
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Kind: tsapi.ConnectorKind,
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APIVersion: "tailscale.io/v1alpha1",
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},
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Spec: tsapi.ConnectorSpec{
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SubnetRouter: &tsapi.SubnetRouter{
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AdvertiseRoutes: []tsapi.Route{"10.40.0.0/14"},
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},
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},
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}
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opts.subnetRoutes = "10.44.0.0/14"
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opts.isExitNode = false
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mustCreate(t, fc, cn)
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expectReconciled(t, cr, "", "test")
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fullName, shortName = findGenName(t, fc, "", "test", "connector")
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opts = configOpts{
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stsName: shortName,
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secretName: fullName,
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parentType: "connector",
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shouldUseDeclarativeConfig: true,
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subnetRoutes: "10.40.0.0/14",
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hostname: "test-connector",
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confFileHash: "57d922331890c9b1c8c6ae664394cb254334c551d9cd9db14537b5d9da9fb17e",
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}
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expectEqual(t, fc, expectedSecret(t, opts))
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expectEqual(t, fc, expectedSTS(opts))
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// Add an exit node.
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mustUpdate[tsapi.Connector](t, fc, "", "test", func(conn *tsapi.Connector) {
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conn.Spec.ExitNode = true
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})
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opts.isExitNode = true
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opts.confFileHash = "1499b591fd97a50f0330db6ec09979792c49890cf31f5da5bb6a3f50dba1e77a"
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expectReconciled(t, cr, "", "test")
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expectEqual(t, fc, expectedSTS(opts))
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// Delete the Connector.
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if err = fc.Delete(context.Background(), cn); err != nil {
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t.Fatalf("error deleting Connector: %v", err)
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}
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expectRequeue(t, cr, "", "test")
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expectReconciled(t, cr, "", "test")
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expectMissing[appsv1.StatefulSet](t, fc, "operator-ns", shortName)
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expectMissing[corev1.Secret](t, fc, "operator-ns", fullName)
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}
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