mesh-controller/cmd/mesh-controller/compose_perform_integration_test.go

//go:build integration

package main

import (
	"errors"
	"fmt"
	"strings"
	"testing"

	"git.novox.be/novox/mesh-sdk/go/catalogue"
	"git.novox.be/novox/mesh-sdk/go/compose"
	"github.com/novox/mesh-controller/internal/link"
)

func aWebModule() catalogue.Manifest {
	return catalogue.Manifest{Module: "web", Version: "1",
		Listens:    []catalogue.Listening{{Port: 8080, From: catalogue.FromEverywhere}},
		OwnSecrets: catalogue.OwnSecrets{"admin": {Path: "/etc/web/admin"}},
		Resources: []map[string]any{
			{"id": "server", "type": "container", "name": "web", "ports": []any{"8080"},
				"image": "registry.example/web@sha256:" + strings.Repeat("a", 64)},
		}}
}

// 1385/AC1: a port the composition names foreseen is allocated with the inventory's PortFor for that module and port, a second
// composition names it no more, and the number is the one the controller's own Allocating composition gives in the same store.
func TestPerformAllocatesAForeseenPortAndTheNumberIsTheControllers(t *testing.T) {
	open := aMesh(t)
	ctx := t.Context()
	register(t, open, aWebModule())
	if _, err := assign(ctx, open, "laptop", "web"); err != nil {
		t.Fatal(err)
	}
	in, err := readComposeInput(ctx, open)
	if err != nil {
		t.Fatal(err)
	}
	d, _, err := compose.ComposeIn(in.Input, "laptop", compose.Foreseeing)
	if err != nil {
		t.Fatal(err)
	}
	if len(d.ForeseenPorts) != 1 || d.ForeseenPorts[0] != "web:8080" {
		t.Fatalf("the composition names the ports %v foreseen, want web:8080", d.ForeseenPorts)
	}
	did, err := perform(ctx, open, in, "laptop", d)
	if err != nil || !did {
		t.Fatalf("perform did %v: %v", did, err)
	}
	held, err := open.inventory.PortsFor(ctx, "laptop")
	if err != nil || len(held) != 1 || held[0].Module != "web" || held[0].Wanted != 8080 {
		t.Fatalf("the port perform allocated reads %+v: %v", held, err)
	}
	in, err = readComposeInput(ctx, open)
	if err != nil {
		t.Fatal(err)
	}
	if again, _, err := compose.ComposeIn(in.Input, "laptop", compose.Foreseeing); err != nil || len(again.ForeseenPorts) != 0 {
		t.Fatalf("a second composition names %v foreseen: %v", again.ForeseenPorts, err)
	}
	// The number is the one the controller allocates in the same store.
	plan, settings, err := planFor(ctx, open, "laptop")
	if err != nil {
		t.Fatal(err)
	}
	old, err := declarationFor(ctx, open, "laptop", plan, settings)
	if err != nil {
		t.Fatal(err)
	}
	after, _, err := compose.ComposeIn(in.Input, "laptop", compose.Foreseeing)
	if err != nil {
		t.Fatal(err)
	}
	if got, want := portsOf(after.Resources), portsOf(old.Resources); got != want {
		t.Fatalf("the declaration publishes %s; the controller's allocation publishes %s", got, want)
	}
}

func portsOf(resources []map[string]any) string {
	var out []string
	for _, r := range resources {
		if r["type"] == "container" {
			out = append(out, fmt.Sprint(r["name"], r["ports"]))
		}
	}
	return strings.Join(out, ";")
}

// 1385/AC2: an own secret named foreseen is made with SecretForModule, and a pair credential the Input names would-make is
// made as planFor chose; both exist after the send's composition and a second composition names neither.
func TestPerformMakesTheOwnSecretsAndThePairCredentialsTheCompositionNamed(t *testing.T) {
	open, _ := aMeshWithSecrets(t)
	ctx := t.Context()
	inv := open.inventory
	register(t, open, aWebModule())
	register(t, open, aConsumerOfTheBucket("reports"))
	for _, m := range []string{"web", "reports"} {
		if _, err := assign(ctx, open, "laptop", m); err != nil {
			t.Fatal(err)
		}
	}
	before, err := madeIn(ctx, open)
	if err != nil {
		t.Fatal(err)
	}
	declared, err := composeSend(ctx, open, "laptop")
	if err != nil {
		t.Fatalf("the send is refused: %v", err)
	}
	if len(declared.foreseen) != 0 {
		t.Fatalf("the declaration still names %v foreseen", declared.foreseen)
	}
	after, err := madeIn(ctx, open)
	if err != nil {
		t.Fatal(err)
	}
	madeNow := func(have, was []string) []string {
		seen := map[string]bool{}
		for _, s := range was {
			seen[s] = true
		}
		var out []string
		for _, s := range have {
			if !seen[s] {
				out = append(out, s)
			}
		}
		return out
	}
	if got := madeNow(after.OwnSecrets, before.OwnSecrets); len(got) != 1 || !strings.Contains(got[0], "web/admin") {
		t.Errorf("the own secrets made are %v, want laptop web/admin", got)
	}
	if got := madeNow(after.Pairs, before.Pairs); len(got) != 1 || !strings.Contains(got[0], "reports") {
		t.Errorf("the pair credentials made are %v, want the one of reports", got)
	}
	// And the credential is the one a second composition reads as held.
	in, err := readComposeInput(ctx, open)
	if err != nil {
		t.Fatal(err)
	}
	if len(in.wouldMake) != 0 {
		t.Errorf("after the send the next send would still make %v", in.wouldMake)
	}
	if _, err := inv.SecretsFrom(ctx, "anchor"); err != nil {
		t.Fatal(err)
	}
}

// 1385/AC3 (the lead's answer 1): with the vault unreachable and no box of the credential kept, the send carries the
// controller's own seal for it (ADR 0396), says so as a condition, and keeps no box.
func TestAVaultThatIsSilentSealsTheSendByTheControllerWhereNoBoxIsKept(t *testing.T) {
	open, vault := aCoreMesh(t, link.VaultBoxContract)
	vault.silent = errors.New("no responders")
	declared, err := composeSend(t.Context(), open, "laptop")
	if err != nil {
		t.Fatalf("the send is refused: %v", err)
	}
	f := clientsBroker(declared.Resources)
	if f == nil || f["sealed"] == nil || f[catalogue.VaultSealedField] != nil {
		t.Fatalf("the core credential is composed as %v: the controller's own seal, until the vault holds it", f)
	}
	if len(declared.foreseen) != 0 {
		t.Fatalf("the declaration still names %v foreseen", declared.foreseen)
	}
	if c, found := vaultSilence(t, "laptop"); !found || !strings.Contains(c.Summary, "sealed by the controller until the vault holds it") {
		t.Fatalf("no condition says why: %+v", c)
	}
	kept, err := open.inventory.KeptCoreBoxes(t.Context(), "laptop")
	if err != nil {
		t.Fatal(err)
	}
	if len(kept["mesh-provisioner-client"]) != 0 {
		t.Fatalf("a box was kept for a credential the vault never boxed: %v", kept)
	}
}

// 1385/AC6: perform is idempotent: a second send's composition over the stores it left makes and records nothing.
func TestAFinishedSendMakesNothingTheSecondTime(t *testing.T) {
	open, _ := aMeshWithSecrets(t)
	ctx := t.Context()
	register(t, open, aWebModule())
	if _, err := assign(ctx, open, "laptop", "web"); err != nil {
		t.Fatal(err)
	}
	if _, err := composeSend(ctx, open, "laptop"); err != nil {
		t.Fatal(err)
	}
	before := tableState(t, open.inventory)
	if _, err := composeSend(ctx, open, "laptop"); err != nil {
		t.Fatal(err)
	}
	for k, v := range tableState(t, open.inventory) {
		if before[k] != v {
			t.Errorf("a second send of the same machine moved %s", k)
		}
	}
}