Files
Felis/internal/api/handlers_backup_now_test.go
T
Lemon-miaow 508a1c02da fix(api): refuse backup/restore before a missing world volume
A server whose world PVC does not exist yet (never started) or no longer exists
(the world was already reaped) accepted the backup/restore POST, answered 202,
and the Job sat Pending on the missing claim until its deadline with nothing
recorded anywhere — a silent no-op from the operator's seat. The live drill on
the reaped `resolvecheck` world reproduced exactly that.

Both handlers now read the world PVC (Cluster.WorldVolumeExists, over the same
naming.WorldPVCName the Jobs mount) and answer a specific 409 no_world_volume
with "start it once to create it, then retry". The felis-api Role gains the
matching get-only PVC grant — the first live run surfaced the missing RBAC as a
403 behind a 500, so the fix ships with it.

Live (auditfix38): resolvecheck -> 409 no_world_volume on both faces; test-one
(which has a world) still backs up through the new gate end to end.
2026-09-23 07:49:00 +08:00

298 lines
11 KiB
Go

package api
import (
"context"
"encoding/json"
"errors"
"net/http"
"testing"
"felis.lolicon.best/internal/apis/felis/v1alpha1"
)
// fakeBackuper records the on-demand backup kick-off the handler makes. It mirrors
// fakeRestorer: the handler only STARTS the work, so the fake just captures the
// arguments and returns a canned error.
type fakeBackuper struct {
err error
calls int
gotName string
gotFormerOwn string
}
func (f *fakeBackuper) Backup(_ context.Context, name, formerOwner string) error {
f.calls++
f.gotName, f.gotFormerOwn = name, formerOwner
return f.err
}
// TestBackupNow exercises POST /api/v1/servers/{name}/backup (spec §18/§19 WorldArchiver,
// on demand). The default server is stopped and owned by owner1 with a wired
// fakeBackuper. The focus is the owner-or-admin gate, the stopped gate (the RWO world
// PVC must be free), the 404/503 surface, that the recorded former owner is the
// server's CURRENT owner, and that backup is an async 202 kick-off.
func TestBackupNow(t *testing.T) {
owner := &Principal{UserID: "owner1", Email: "[email protected]", Role: "user"}
mk := func() (*API, *fakeRepo, *fakeCluster, *fakeBackuper) {
repo := newFakeRepo()
repo.byName["survival"] = &ServerRecord{Name: "survival", OwnerID: "owner1"}
cl := newFakeCluster()
cl.byName["survival"] = &ServerInfo{Name: "survival", Phase: "Stopped",
Ready: false, DesiredState: string(v1alpha1.DesiredStopped)}
backuper := &fakeBackuper{}
api := newTestAPI(repo, cl)
api.Backuper = backuper
return api, repo, cl, backuper
}
const path = "/api/v1/servers/survival/backup"
t.Run("owner backs up -> 202 + backuper(currentOwner) + audit", func(t *testing.T) {
api, repo, _, backuper := mk()
api.External = staticExternal{p: owner}
w := do(api.ExternalHandler(), "POST", path, "", nil)
if w.Code != http.StatusAccepted {
t.Fatalf("code = %d, want 202 (%s)", w.Code, w.Body.String())
}
var resp struct {
Name string `json:"name"`
Status string `json:"status"`
}
if err := json.Unmarshal(w.Body.Bytes(), &resp); err != nil {
t.Fatalf("body not JSON: %v (%s)", err, w.Body.String())
}
if resp.Name != "survival" || resp.Status != "backing_up" {
t.Fatalf("unexpected response %+v", resp)
}
if backuper.calls != 1 || backuper.gotName != "survival" || backuper.gotFormerOwn != "owner1" {
t.Fatalf("backuper saw (calls=%d,%q,%q), want (1,survival,owner1)",
backuper.calls, backuper.gotName, backuper.gotFormerOwn)
}
if len(repo.audits) != 1 || repo.audits[0].Action != "backup.create" || repo.audits[0].Actor != "[email protected]" {
t.Fatalf("audit not written as expected: %+v", repo.audits)
}
})
t.Run("admin backs up an unowned server -> 202, empty former owner recorded", func(t *testing.T) {
api, repo, _, backuper := mk()
repo.byName["survival"].OwnerID = "" // released world
api.External = staticExternal{p: &Principal{UserID: "admin1", Email: "[email protected]",
Role: "admin", ViaAdminAccess: true}}
w := do(api.ExternalHandler(), "POST", path, "", nil)
if w.Code != http.StatusAccepted {
t.Fatalf("code = %d, want 202 (%s)", w.Code, w.Body.String())
}
if backuper.calls != 1 || backuper.gotFormerOwn != "" {
t.Fatalf("backuper saw (calls=%d, former=%q), want (1, empty)", backuper.calls, backuper.gotFormerOwn)
}
})
t.Run("non-owner -> 403, no backup", func(t *testing.T) {
api, _, _, backuper := mk()
api.External = staticExternal{p: &Principal{UserID: "stranger", Role: "user"}}
w := do(api.ExternalHandler(), "POST", path, "", nil)
if w.Code != http.StatusForbidden {
t.Fatalf("code = %d, want 403", w.Code)
}
if backuper.calls != 0 {
t.Fatal("a forbidden caller must not start a backup")
}
})
t.Run("unknown server -> 404", func(t *testing.T) {
api, _, _, _ := mk()
api.External = staticExternal{p: owner}
w := do(api.ExternalHandler(), "POST", "/api/v1/servers/missing/backup", "", nil)
if w.Code != http.StatusNotFound {
t.Fatalf("code = %d, want 404", w.Code)
}
})
t.Run("running server -> 409 not_stopped, no backup", func(t *testing.T) {
api, _, cl, backuper := mk()
cl.byName["survival"].Ready = true
cl.byName["survival"].DesiredState = string(v1alpha1.DesiredRunning)
api.External = staticExternal{p: owner}
w := do(api.ExternalHandler(), "POST", path, "", nil)
if w.Code != http.StatusConflict || decodeErr(t, w) != "not_stopped" {
t.Fatalf("code = %d body %s", w.Code, w.Body.String())
}
if backuper.calls != 0 {
t.Fatal("a running server holds the RWO world PVC — backup must be refused")
}
})
t.Run("starting server -> 409 not_stopped", func(t *testing.T) {
api, _, cl, _ := mk()
cl.byName["survival"].Ready = false
cl.byName["survival"].DesiredState = string(v1alpha1.DesiredRunning)
api.External = staticExternal{p: owner}
w := do(api.ExternalHandler(), "POST", path, "", nil)
if w.Code != http.StatusConflict || decodeErr(t, w) != "not_stopped" {
t.Fatalf("code = %d body %s", w.Code, w.Body.String())
}
})
t.Run("no world volume -> 409 no_world_volume, no backup", func(t *testing.T) {
// A never-started (or reaped) server has no world PVC: the Job would hang
// Pending on the missing claim with nothing recorded, so the gate must
// refuse before the backuper is reached.
api, _, cl, backuper := mk()
cl.noWorld["survival"] = true
api.External = staticExternal{p: owner}
w := do(api.ExternalHandler(), "POST", path, "", nil)
if w.Code != http.StatusConflict || decodeErr(t, w) != "no_world_volume" {
t.Fatalf("code = %d body %s", w.Code, w.Body.String())
}
if backuper.calls != 0 {
t.Fatal("a world-less server must not reach the backuper")
}
})
t.Run("nil Backuper -> 503 backup_unavailable", func(t *testing.T) {
api, _, _, _ := mk()
api.Backuper = nil
api.External = staticExternal{p: owner}
w := do(api.ExternalHandler(), "POST", path, "", nil)
if w.Code != http.StatusServiceUnavailable || decodeErr(t, w) != "backup_unavailable" {
t.Fatalf("code = %d body %s", w.Code, w.Body.String())
}
})
t.Run("backuper failure -> 500, not audited", func(t *testing.T) {
api, repo, _, backuper := mk()
backuper.err = errors.New("kick-off failed")
api.External = staticExternal{p: owner}
w := do(api.ExternalHandler(), "POST", path, "", nil)
if w.Code != http.StatusInternalServerError {
t.Fatalf("code = %d, want 500 (%s)", w.Code, w.Body.String())
}
if len(repo.audits) != 0 {
t.Fatalf("a failed backup must not be audited: %+v", repo.audits)
}
})
t.Run("backuper reports unknown server -> 404", func(t *testing.T) {
api, _, _, backuper := mk()
backuper.err = ErrNotFound
api.External = staticExternal{p: owner}
w := do(api.ExternalHandler(), "POST", path, "", nil)
if w.Code != http.StatusNotFound {
t.Fatalf("code = %d, want 404", w.Code)
}
})
t.Run("invalid server name -> 400", func(t *testing.T) {
api, _, _, _ := mk()
api.External = staticExternal{p: owner}
w := do(api.ExternalHandler(), "POST", "/api/v1/servers/X/backup", "", nil)
if w.Code != http.StatusBadRequest {
t.Fatalf("code = %d, want 400", w.Code)
}
})
}
// TestInternalBackup exercises POST /api/v1/internal/servers/{name}/backup, the
// break-glass console's face. It shares enqueueBackup with the external handler, so
// the stopped-gate / 503 / async-202 behaviour is proven there; here the focus is the
// internal-face difference: no Principal (service-token auth), no owner gate — even a
// server owned by someone else backs up (the on-node operator is trusted) — and the
// audit is attributed to "break-glass"/"internal", not an email/"external".
func TestInternalBackup(t *testing.T) {
mk := func() (*API, *fakeRepo, *fakeCluster, *fakeBackuper) {
repo := newFakeRepo()
repo.byName["survival"] = &ServerRecord{Name: "survival", OwnerID: "someone-else"}
cl := newFakeCluster()
cl.byName["survival"] = &ServerInfo{Name: "survival", Phase: "Stopped",
Ready: false, DesiredState: string(v1alpha1.DesiredStopped)}
backuper := &fakeBackuper{}
api := newTestAPI(repo, cl)
api.Backuper = backuper
return api, repo, cl, backuper
}
const path = "/api/v1/internal/servers/survival/backup"
t.Run("stopped server -> 202 + backuper(currentOwner) + break-glass audit", func(t *testing.T) {
api, repo, _, backuper := mk()
w := do(api.InternalHandler(), "POST", path, "", jsonHeader)
if w.Code != http.StatusAccepted {
t.Fatalf("code = %d, want 202 (%s)", w.Code, w.Body.String())
}
// No owner gate on the internal face: a server owned by someone else still backs
// up, and the recorded former owner is the server's CURRENT owner.
if backuper.calls != 1 || backuper.gotName != "survival" || backuper.gotFormerOwn != "someone-else" {
t.Fatalf("backuper saw (calls=%d,%q,%q), want (1,survival,someone-else)",
backuper.calls, backuper.gotName, backuper.gotFormerOwn)
}
if len(repo.audits) != 1 || repo.audits[0].Action != "backup.create" ||
repo.audits[0].Actor != "break-glass" || repo.audits[0].Source != "internal" {
t.Fatalf("audit not attributed to break-glass/internal: %+v", repo.audits)
}
})
t.Run("os_user body attributes the audit to the operator", func(t *testing.T) {
api, repo, _, _ := mk()
w := do(api.InternalHandler(), "POST", path, `{"os_user":"alice"}`, jsonHeader)
if w.Code != http.StatusAccepted {
t.Fatalf("code = %d, want 202 (%s)", w.Code, w.Body.String())
}
if len(repo.audits) != 1 || repo.audits[0].Actor != "alice" || repo.audits[0].Source != "internal" {
t.Fatalf("audit actor should be the os_user, not break-glass: %+v", repo.audits)
}
})
t.Run("running server -> 409 not_stopped, no backup", func(t *testing.T) {
api, _, cl, backuper := mk()
cl.byName["survival"].Ready = true
cl.byName["survival"].DesiredState = string(v1alpha1.DesiredRunning)
w := do(api.InternalHandler(), "POST", path, "", jsonHeader)
if w.Code != http.StatusConflict || decodeErr(t, w) != "not_stopped" {
t.Fatalf("code = %d body %s", w.Code, w.Body.String())
}
if backuper.calls != 0 {
t.Fatal("a running server holds the RWO world PVC — backup must be refused")
}
})
t.Run("no world volume -> 409 no_world_volume, no backup", func(t *testing.T) {
// The break-glass face shares enqueueBackup, so the world-volume gate must
// hold here too — this is the face the TUI's Sync picker drives.
api, _, cl, backuper := mk()
cl.noWorld["survival"] = true
w := do(api.InternalHandler(), "POST", path, "", jsonHeader)
if w.Code != http.StatusConflict || decodeErr(t, w) != "no_world_volume" {
t.Fatalf("code = %d body %s", w.Code, w.Body.String())
}
if backuper.calls != 0 {
t.Fatal("a world-less server must not reach the backuper")
}
})
t.Run("nil Backuper -> 503 backup_unavailable", func(t *testing.T) {
api, _, _, _ := mk()
api.Backuper = nil
w := do(api.InternalHandler(), "POST", path, "", jsonHeader)
if w.Code != http.StatusServiceUnavailable || decodeErr(t, w) != "backup_unavailable" {
t.Fatalf("code = %d body %s", w.Code, w.Body.String())
}
})
t.Run("unknown server -> 404", func(t *testing.T) {
api, _, _, _ := mk()
w := do(api.InternalHandler(), "POST", "/api/v1/internal/servers/missing/backup", "", jsonHeader)
if w.Code != http.StatusNotFound {
t.Fatalf("code = %d, want 404", w.Code)
}
})
t.Run("invalid server name -> 400 bad_name", func(t *testing.T) {
api, _, _, _ := mk()
w := do(api.InternalHandler(), "POST", "/api/v1/internal/servers/X/backup", "", jsonHeader)
if w.Code != http.StatusBadRequest || decodeErr(t, w) != "bad_name" {
t.Fatalf("code = %d body %s", w.Code, w.Body.String())
}
})
}