SSH integration test setup

integration/ssh_test.go

@@ -0,0 +1,115 @@
+package integration
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/juanfont/headscale"
+)
+
+func TestSSHIntoAll(t *testing.T) {
+	IntegrationSkip(t)
+
+	scenario, err := NewScenario()
+	if err != nil {
+		t.Errorf("failed to create scenario: %s", err)
+	}
+
+	spec := &HeadscaleSpec{
+		namespaces: map[string]int{
+			// Omit versions before 1.24 because they don't support SSH
+			"namespace1": len(TailscaleVersions) - 4,
+			"namespace2": len(TailscaleVersions) - 4,
+		},
+		enableSSH: true,
+		acl: &headscale.ACLPolicy{
+			Groups: map[string][]string{
+				"group:integration-test": {"namespace1", "namespace2"},
+			},
+			ACLs: []headscale.ACL{
+				{
+					Action:       "accept",
+					Sources:      []string{"*"},
+					Destinations: []string{"*:*"},
+				},
+			},
+			SSHs: []headscale.SSH{
+				{
+					Action:       "accept",
+					Sources:      []string{"group:integration-test"},
+					Destinations: []string{"group:integration-test"},
+					Users:        []string{"ssh-it-user"},
+				},
+			},
+		},
+	}
+
+	err = scenario.CreateHeadscaleEnv(spec)
+	if err != nil {
+		t.Errorf("failed to create headscale environment: %s", err)
+	}
+	err = scenario.WaitForTailscaleSync()
+	if err != nil {
+		t.Errorf("failed wait for tailscale clients to be in sync: %s", err)
+	}
+
+	for namespace := range spec.namespaces {
+		// This will essentially fetch and cache all the FQDNs for the given namespace
+		nsFQDNs, err := scenario.ListTailscaleClientsFQDNs(namespace)
+		if err != nil {
+			t.Errorf("failed to get FQDNs: %s", err)
+		}
+
+		nsClients, err := scenario.ListTailscaleClients(namespace)
+		if err != nil {
+			t.Errorf("failed to get clients: %s", err)
+		}
+
+		for _, client := range nsClients {
+			currentClientFqdn, _ := client.FQDN()
+			sshTargets := removeFromSlice(nsFQDNs, currentClientFqdn)
+
+			for _, target := range sshTargets {
+				t.Run(
+					fmt.Sprintf("%s-%s", currentClientFqdn, target),
+					func(t *testing.T) {
+						command := []string{
+							"ssh", "-o StrictHostKeyChecking=no",
+							fmt.Sprintf("%s@%s", "ssh-it-user", target),
+							"'hostname'",
+						}
+
+						result, err := client.Execute(command)
+						if err != nil {
+							t.Errorf("failed to execute command over SSH: %s", err)
+						}
+
+						if result != target {
+							t.Logf("result=%s, target=%s", result, target)
+							t.Fail()
+						}
+
+						t.Logf("Result for %s: %s\n", target, result)
+					},
+				)
+			}
+
+			// t.Logf("%s wants to SSH into %+v", currentClientFqdn, sshTargets)
+		}
+	}
+
+	err = scenario.Shutdown()
+	if err != nil {
+		t.Errorf("failed to tear down scenario: %s", err)
+	}
+}
+
+func removeFromSlice(haystack []string, needle string) []string {
+	for i, value := range haystack {
+		if needle == value {
+			return append(haystack[:i], haystack[i+1:]...)
+		}
+	}
+
+	return haystack
+}