test: copy vpn-auth-file to guest

tests/e2e/tailscale/Vagrantfile

@@ -47,13 +47,15 @@ def provision(vm, roles, role_num, node_num)
   if roles.include?("agent")
     vpn_auth = nil
     vpn_auth_method = nil
+    auth_info = "name=tailscale,joinKey=#{TAILSCALE_KEY}"
     if role_num == 0
       vpn_auth_method = "vpn-auth"
-      vpn_auth = "name=tailscale,joinKey=#{TAILSCALE_KEY}"
+      vpn_auth = auth_info
     else
       vpn_auth_method = "vpn-auth-file"
-      File.write("./vpn-auth-file", vpn_auth)
-      vpn_auth = File.expand_path("./vpn-auth-file")
+      File.write("./vpn-auth-file", auth_info)
+      vm.provision "file", source: "./vpn-auth-file", destination: "$HOME/vpn-auth-file"
+      vpn_auth = File.expand_path("$HOME/vpn-auth-file")
     end
     vm.provision :k3s, run: 'once' do |k3s|
       k3s.config_mode = '0644' # side-step https://github.com/k3s-io/k3s/issues/4321

tests/e2e/tailscale/tailscale_test.go

@@ -82,6 +82,7 @@ var _ = Describe("Verify Tailscale Configuration", Ordered, func() {
 		Eventually(func(g Gomega) {
 			nodes, err := e2e.ParseNodes(kubeConfigFile, false)
 			g.Expect(err).NotTo(HaveOccurred())
+			g.Expect(len(nodes)).To(Equal(*agentCount + *serverCount))
 			for _, node := range nodes {
 				g.Expect(node.Status).Should(Equal("Ready"))
 			}