| 1 | package host |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "errors" |
| 6 | "github.com/carlosframework/platform/internal/hostclaim" |
| 7 | "github.com/carlosframework/platform/internal/hostguard" |
| 8 | "github.com/carlosframework/platform/internal/registry" |
| 9 | "os/exec" |
| 10 | "testing" |
| 11 | ) |
| 12 | |
| 13 | func TestPlan11Fix1RelocationAdmissionHooks(t *testing.T) { |
| 14 | for _, writer := range []string{"source", "", "target"} { |
| 15 | t.Run(writer, func(t *testing.T) { |
| 16 | calls := []string{} |
| 17 | w := &ClaimWakeAssembly{Stop: func(context.Context, hostclaim.Observed) error { calls = append(calls, "local-stop"); return nil }} |
| 18 | local := func(context.Context, hostclaim.Observed, hostclaim.Observed) error { |
| 19 | calls = append(calls, "local-after") |
| 20 | return nil |
| 21 | } |
| 22 | reloc := ClaimRelocationOwners{BeforeAdmission: func(context.Context, hostclaim.Observed) error { |
| 23 | calls = append(calls, "relocation-before") |
| 24 | return nil |
| 25 | }, AfterAdmission: func(context.Context, hostclaim.Observed, hostclaim.Observed) error { |
| 26 | calls = append(calls, "relocation-after") |
| 27 | return nil |
| 28 | }} |
| 29 | wireClaimAdmission(w, "target", local, claimCrossBoxHandover{}, &reloc, nil) |
| 30 | o := plan11Relocating("probing") |
| 31 | o.Claim.Op.Exec = "target" |
| 32 | o.Claim.Holder.WriterBox = writer |
| 33 | if err := w.stopPredecessor(t.Context(), o); err != nil { |
| 34 | t.Fatal(err) |
| 35 | } |
| 36 | if err := w.AfterAdmission(t.Context(), o, o); err != nil { |
| 37 | t.Fatal(err) |
| 38 | } |
| 39 | want := []string{"relocation-before", "relocation-after"} |
| 40 | if writer == "target" { |
| 41 | want = []string{"local-stop", "local-after"} |
| 42 | } |
| 43 | if len(calls) != 2 || calls[0] != want[0] || calls[1] != want[1] { |
| 44 | t.Fatalf("calls=%v want=%v", calls, want) |
| 45 | } |
| 46 | }) |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | func TestPlan11Fix1CollectRelocationStops(t *testing.T) { |
| 51 | for _, phase := range []string{"releasing", "probing", "serving"} { |
| 52 | t.Run(phase, func(t *testing.T) { |
| 53 | f := newRecoveryFixture(t) |
| 54 | c := f.controller("boot-1", "controller-1", 4101, "start-1") |
| 55 | c.admit(t, f) |
| 56 | o, err := hostclaim.Update(t.Context(), f.claims, f.read(), func(cl *hostclaim.Claim) error { |
| 57 | cl.Op = hostclaim.Op{Kind: hostclaim.KindRelocating, ID: "reloc", Phase: phase, Exec: "box-1", Participants: []string{"box-0", "box-1"}, Intent: map[string]string{"region": "ie", "source_box": "box-1", "target_box": "box-1"}} |
| 58 | if phase == "releasing" { |
| 59 | return hostclaim.QueueRelocationRelease("reloc", "box-1", "ie", "retirement")(cl) |
| 60 | } |
| 61 | return nil |
| 62 | }) |
| 63 | if err != nil { |
| 64 | t.Fatal(err) |
| 65 | } |
| 66 | local, err := c.assembly.localStopIdentity(t.Context()) |
| 67 | if err != nil { |
| 68 | t.Fatal(err) |
| 69 | } |
| 70 | seen := false |
| 71 | sentinel := errors.New("collected") |
| 72 | c.assembly.collectStop = func(_ context.Context, req StopRequest, _ StopDrainer) (StopResult, error) { |
| 73 | seen = true |
| 74 | want := hostguard.WriterStopObligation(o.Claim.Holder.Session) |
| 75 | if phase == "releasing" { |
| 76 | want = "relocation-release" |
| 77 | } |
| 78 | if req.ObligationID != want { |
| 79 | t.Errorf("obligation=%q want=%q", req.ObligationID, want) |
| 80 | } |
| 81 | return StopResult{}, sentinel |
| 82 | } |
| 83 | c.wake.Continue = hostclaim.SessionContinues |
| 84 | _, err = c.assembly.collectCapturedStop(t.Context(), o, local, claimLaunchOwner{BootID: local.BootID, ControllerID: local.ControllerID}, phase != "releasing") |
| 85 | if !seen || !errors.Is(err, sentinel) { |
| 86 | t.Fatalf("relocation stop never collected: %v", err) |
| 87 | } |
| 88 | }) |
| 89 | } |
| 90 | } |
| 91 | |
| 92 | func TestPlan11Fix1RelocationComposedAdmission(t *testing.T) { |
| 93 | f := newRecoveryFixture(t) |
| 94 | if _, err := hostclaim.Update(t.Context(), f.claims, f.read(), func(c *hostclaim.Claim) error { |
| 95 | c.Op = hostclaim.Op{ID: "reloc", Kind: hostclaim.KindRelocating, Phase: "probing", Exec: "box-1", Participants: []string{"source", "box-1"}, Intent: map[string]string{"source_box": "source", "target_box": "box-1", "region": "ie"}} |
| 96 | return nil |
| 97 | }); err != nil { |
| 98 | t.Fatal(err) |
| 99 | } |
| 100 | c := f.controller("boot-1", "controller-1", 4101, "start-1") |
| 101 | c.wake.Inputs = plan9D2Inputs{recoveryInputs{f}} |
| 102 | c.wake.Continue = hostclaim.SessionContinues |
| 103 | c.wake.Operations = &plan9D2Attempts{} |
| 104 | c.wake.ProbeReady = func(context.Context, *exec.Cmd, registry.Route, ClaimLaunchInputs, string) error { return nil } |
| 105 | before, after := 0, 0 |
| 106 | refusal := errors.New("release proof refused") |
| 107 | owners := ClaimRelocationOwners{ |
| 108 | BeforeAdmission: func(context.Context, hostclaim.Observed) error { before++; return refusal }, |
| 109 | AfterAdmission: func(_ context.Context, prior, admitted hostclaim.Observed) error { |
| 110 | after++ |
| 111 | if admitted.Claim.Holder.WriterBox != "box-1" || admitted.Claim.Holder.Session <= prior.Claim.Holder.Session { |
| 112 | t.Fatal("handover did not receive admitted writer") |
| 113 | } |
| 114 | return nil |
| 115 | }, |
| 116 | } |
| 117 | wireClaimAdmission(c.wake, "box-1", func(context.Context, hostclaim.Observed, hostclaim.Observed) error { |
| 118 | t.Fatal("remote predecessor reached local handover") |
| 119 | return nil |
| 120 | }, claimCrossBoxHandover{}, &owners, nil) |
| 121 | prior := f.read() |
| 122 | if err := c.wake.stopPredecessor(t.Context(), prior); !errors.Is(err, refusal) { |
| 123 | t.Fatalf("release refusal lost: %v", err) |
| 124 | } |
| 125 | refusal = nil |
| 126 | if err := c.wake.stopPredecessor(t.Context(), prior); err != nil { |
| 127 | t.Fatal(err) |
| 128 | } |
| 129 | live, cancel := context.WithCancel(t.Context()) |
| 130 | defer cancel() |
| 131 | done := make(chan struct{}) |
| 132 | go func() { <-live.Done(); close(done) }() |
| 133 | c.wake.pending[recoveryHost] = &claimWakeAttempt{observed: prior, held: recoveryHeld{}, ctx: live, cancel: cancel, done: done} |
| 134 | policy := recoveryPolicy |
| 135 | policy.Probe = true |
| 136 | admitted, err := c.runtime.Admit(t.Context(), registry.Route{Host: recoveryHost}, prior, policy) |
| 137 | if err != nil { |
| 138 | t.Fatal(err) |
| 139 | } |
| 140 | if before != 2 || after != 1 || len(f.requests) != 0 { |
| 141 | t.Fatalf("before=%d after=%d local stops=%d", before, after, len(f.requests)) |
| 142 | } |
| 143 | if admitted.Claim.Op.Kind != hostclaim.KindRelocating { |
| 144 | t.Fatal("lost relocation") |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | func TestPlan11Fix1RelocationRequiresHandoverOwners(t *testing.T) { |
| 149 | for _, missing := range []string{"before", "after"} { |
| 150 | var calls []string |
| 151 | owners := plan11RelocationOwners(&calls) |
| 152 | if missing == "before" { |
| 153 | owners.BeforeAdmission = nil |
| 154 | } else { |
| 155 | owners.AfterAdmission = nil |
| 156 | } |
| 157 | if _, err := claimRelocationC1(plan11Env("1", "1"), true, owners); err == nil { |
| 158 | t.Fatalf("accepted missing %s hook", missing) |
| 159 | } |
| 160 | } |
| 161 | } |
| 162 | |
amadan