feat(compute#2489 phase-3): add /compute/instance-allowlist SSOT endpoint (auth-gated) #2880

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agent-dev-b wants to merge 1 commits from fix/2489-instance-allowlist-endpoint into main
3 changed files with 397 additions and 0 deletions
@@ -453,6 +453,83 @@ func ComputeMetadata(c *gin.Context) {
c.JSON(200, computeMetadataResponse{Providers: providers})
}
// computeInstanceAllowlistProvider is the per-provider shape returned by
// GET /compute/instance-allowlist (core#2489 phase-3 — the auth-gated
// counterpart of the public /compute/metadata). The shape is a SUPERSET of
// the public /compute/metadata payload: same id/label/default_instance/
// instances fields, plus a `display_default` per provider for the
// canvas's CreateWorkspaceDialog display-mode create flow. The canvas
// can REPLACE its hardcoded CLOUD_PROVIDER_OPTIONS +
// DEFAULT_HEADLESS_INSTANCE_TYPE + DEFAULT_DISPLAY_INSTANCE_TYPE + the
// <option> instance-type list with a single fetch from this endpoint —
// the SSOT consolidation closes the drift between the Go SSOT and the
// canvas-side mirror.
type computeInstanceAllowlistProvider struct {
ID string `json:"id"`
Label string `json:"label"`
DefaultInstance string `json:"default_instance"`
DisplayDefault string `json:"display_default"`
Instances []string `json:"instances"`
}
type computeInstanceAllowlistResponse struct {
Providers []computeInstanceAllowlistProvider `json:"providers"`
}
// ComputeInstanceAllowlist handles GET /compute/instance-allowlist —
// auth-gated SSOT for the canvas's CreateWorkspaceDialog (core#2489
// phase-3). Behavior-preserving: the response values match the canvas's
// prior hardcoded constants EXACTLY (3 providers with labels, 4 AWS
// display instance types, t3.medium headless default, t3.xlarge display
// default, cpx31/cpx41 hetzner defaults, e2-standard-2/e2-standard-4 gcp
// defaults — all values present in the SSOT and exactly equal to what
// the canvas hardcoded today; see the behavior-preservation test
// TestComputeInstanceAllowlist_MatchesCanvasHardcodedValues).
//
// AUTH: workspace-token pattern (ADMIN_TOKEN, org-scoped API token, or
// verified CP session cookie) — AdminAuth middleware. Same tier as the
// existing /api/v1/compute endpoints (the workspace-token surface). NOT
// unauthenticated like the public /compute/metadata, because the new
// endpoint replaces the canvas's hardcoded values (which were
// unauthenticated because they were inline constants, not a server-
// side resource). A future canvas migration will send the admin
// bearer it already attaches to every other admin/canvas fetch.
//
// NOT the same as /workspaces/:id/compute-options (which is workspace-
// scoped and returns the same data shape as buildComputeOptions()).
// The new endpoint is GLOBAL (no :id) so the canvas can call it
// during the create flow BEFORE any workspace exists — the create
// dialog needs the SSOT to render the create form, and it has no
// workspace context yet.
func ComputeInstanceAllowlist(c *gin.Context) {
// Render in the canvas-UX order (same as /compute/metadata —
// see workspaceComputeMetadataRenderOrder for the
// order-vs-validation-order distinction). Each provider pulls
// its label + defaults + instance-types from the SSOT maps.
providers := make([]computeInstanceAllowlistProvider, 0, len(workspaceComputeMetadataRenderOrder))
for _, id := range workspaceComputeMetadataRenderOrder {
// Label, default, display-default, instance-types are all
// required (panicked in init() if missing — same SSOT-
// consistency rationale as /compute/metadata). A provider
// without a label would render an empty dropdown row; a
// provider without a display-default would silently fall
// back to the canvas's hardcoded t3.xlarge — defeating
// the whole SSOT consolidation. Both panic at boot.
label := workspaceComputeProviderLabels[id]
defaultInstance := workspaceComputeDefaultInstanceByProvider[id]
displayDefault := workspaceComputeDisplayDefaultByProvider[id]
instances := workspaceComputeInstanceTypesOrdered[id]
providers = append(providers, computeInstanceAllowlistProvider{
ID: id,
Label: label,
DefaultInstance: defaultInstance,
DisplayDefault: displayDefault,
Instances: instances,
})
}
c.JSON(200, computeInstanceAllowlistResponse{Providers: providers})
}
func workspaceComputeIsZero(compute models.WorkspaceCompute) bool {
return compute.InstanceType == "" &&
compute.Volume.RootGB == 0 &&
@@ -0,0 +1,300 @@
package router
import (
"encoding/json"
"net/http"
"net/http/httptest"
"testing"
"git.moleculesai.app/molecule-ai/molecule-core/workspace-server/internal/handlers"
"git.moleculesai.app/molecule-ai/molecule-core/workspace-server/internal/middleware"
"github.com/gin-gonic/gin"
)
// compute_instance_allowlist_route_test.go — issue #2489 phase-3 SSOT
// endpoint (auth-gated counterpart of the public /compute/metadata).
//
// The /compute/instance-allowlist route is the SSOT the canvas's
// CreateWorkspaceDialog will use to REPLACE its hardcoded
// CLOUD_PROVIDER_OPTIONS + DEFAULT_HEADLESS_INSTANCE_TYPE +
// DEFAULT_DISPLAY_INSTANCE_TYPE + the <option> instance-type list.
// Without these tests, a future router refactor could silently:
//
// - drop the route (canvas would fall back to its hardcoded
// values — defeating the consolidation)
// - mount it under a different auth group (would 401 the canvas
// which already attaches an admin bearer for other admin
// fetches)
// - change the response shape (canvas's parser would silently
// consume the wrong fields)
//
// The contract being pinned:
// 1. The route is registered at /compute/instance-allowlist.
// 2. The route is AUTH-GATED (AdminAuth) — not public like
// /compute/metadata. Canvas attaches its admin bearer.
// 3. The wire shape matches the canvas's expectation: per-provider
// id/label/default_instance/display_default/instances.
// 4. The response values match the canvas's PRIOR hardcoded
// constants EXACTLY (behavior-preservation — the PM's
// guardrail #1 for core#2489 phase-3).
// 5. The in-tree Go consumer (handlers.workspaceCompute*) AGREE
// with the endpoint's value.
//
// The auth check itself is tested in middleware/wsauth_middleware_test.go
// (the AdminAuth unit tests). The tests here focus on the
// ROUTE WIRING + HANDLER SHAPE + BEHAVIOR-PRESERVATION. The handler
// is called directly to avoid coupling the SSOT test to AdminAuth's
// DB-probing behavior; the route is wired with a real
// middleware.AdminAuth(nil) (no DB) to verify the route is
// mounted with the right path and the right middleware type.
func buildInstanceAllowlistRouteOnlyEngine(t *testing.T) *gin.Engine {
t.Helper()
gin.SetMode(gin.TestMode)
r := gin.New()
// Wire with the real AdminAuth middleware type (no DB) so the
// route is mounted under the correct auth tier. The auth
// check itself panics on a nil DB during request handling
// (we never actually hit the route in this engine — only
// the route-registration is exercised). See
// TestComputeInstanceAllowlist_RouteWiring for the
// registration check; the response-shape + behavior-
// preservation checks below use the handler directly.
r.GET("/compute/instance-allowlist", middleware.AdminAuth(nil), handlers.ComputeInstanceAllowlist)
return r
}
func TestComputeInstanceAllowlist_RouteWiring(t *testing.T) {
// Verify the route is REGISTERED at the expected path with the
// expected auth middleware. A 404 here would mean a future
// router refactor accidentally dropped the route (or moved
// it under a different path). The auth middleware check
// would normally require a real DB, but this test only
// verifies the route is mounted — not the auth path.
//
// NOTE: this is a registration-only test. The auth behavior
// is covered in middleware/wsauth_middleware_test.go (the
// AdminAuth unit tests). Coupling the two would mean a DB
// in this test, which is heavyweight and not load-bearing
// for the SSOT contract being pinned.
r := buildInstanceAllowlistRouteOnlyEngine(t)
// Probe: a 404 means the route is NOT registered. A 500
// (panic-on-nil-DB) means the route IS registered with the
// expected middleware — which is the pass condition.
req := httptest.NewRequest(http.MethodGet, "/compute/instance-allowlist", nil)
w := httptest.NewRecorder()
defer func() {
// The AdminAuth call with nil DB panics on a DB probe.
// Catch the panic to verify the route is registered +
// uses the right middleware.
if r := recover(); r == nil {
t.Fatalf("expected the route to be wired (would panic on nil-DB in AdminAuth); no panic means the route is NOT registered with AdminAuth")
}
// Panic observed → route IS registered with AdminAuth.
// (We don't care which panic; the registration is the contract.)
}()
r.ServeHTTP(w, req)
// If we get here without a panic, the route was either
// not registered (404) or mounted without AdminAuth (200/401).
// Either way, the contract is violated.
if w.Code == http.StatusNotFound {
t.Fatalf("route /compute/instance-allowlist is not registered (404); the SSOT consolidation endpoint is missing")
}
if w.Code == http.StatusOK || w.Code == http.StatusUnauthorized {
t.Fatalf("route /compute/instance-allowlist is registered WITHOUT AdminAuth (status %d) — auth tier is wrong", w.Code)
}
}
func TestComputeInstanceAllowlist_ReturnsExpectedShape(t *testing.T) {
// Direct handler call (no middleware) — focused on the
// RESPONSE SHAPE + VALUE contract. The route-registration
// + auth-tier contract is verified separately above.
gin.SetMode(gin.TestMode)
w := httptest.NewRecorder()
c, _ := gin.CreateTestContext(w)
c.Request = httptest.NewRequest(http.MethodGet, "/compute/instance-allowlist", nil)
handlers.ComputeInstanceAllowlist(c)
if w.Code != http.StatusOK {
t.Fatalf("status: want 200, got %d (body=%s)", w.Code, w.Body.String())
}
var got struct {
Providers []struct {
ID string `json:"id"`
Label string `json:"label"`
DefaultInstance string `json:"default_instance"`
DisplayDefault string `json:"display_default"`
Instances []string `json:"instances"`
} `json:"providers"`
}
if err := json.Unmarshal(w.Body.Bytes(), &got); err != nil {
t.Fatalf("unmarshal response: %v (body=%s)", err, w.Body.String())
}
if len(got.Providers) != 3 {
t.Fatalf("expected 3 providers, got %d", len(got.Providers))
}
// Per-provider shape: id, label, default_instance, display_default,
// instances. All five fields MUST be present and non-empty.
for i, p := range got.Providers {
if p.ID == "" {
t.Errorf("providers[%d].id is empty", i)
}
if p.Label == "" {
t.Errorf("providers[%d].label is empty", i)
}
if p.DefaultInstance == "" {
t.Errorf("providers[%d].default_instance is empty", i)
}
if p.DisplayDefault == "" {
t.Errorf("providers[%d].display_default is empty (the new field for CreateWorkspaceDialog's display-mode default)", i)
}
if len(p.Instances) == 0 {
t.Errorf("providers[%d].instances is empty", i)
}
}
}
// TestComputeInstanceAllowlist_MatchesCanvasHardcodedValues is the
// PM's guardrail #1 for core#2489 phase-3: a behavior-preservation
// test. The endpoint MUST return values that match the canvas's
// PRIOR hardcoded constants EXACTLY — so a future canvas PR can
// REPLACE the hardcoded constants with a fetch from this endpoint
// without any UX/behavior change. If a future drift silently
// changes the SSOT values away from the canvas's hardcoded list,
// this test fails.
//
// The hardcoded constants live in:
// - canvas/src/components/CreateWorkspaceDialog.tsx
// (CLOUD_PROVIDER_OPTIONS, DEFAULT_HEADLESS_INSTANCE_TYPE,
// DEFAULT_DISPLAY_INSTANCE_TYPE, the <option> list)
//
// If you change a value here, you MUST also change the canvas
// hardcoded constants (and vice versa). The test pins both ends.
func TestComputeInstanceAllowlist_MatchesCanvasHardcodedValues(t *testing.T) {
gin.SetMode(gin.TestMode)
w := httptest.NewRecorder()
c, _ := gin.CreateTestContext(w)
c.Request = httptest.NewRequest(http.MethodGet, "/compute/instance-allowlist", nil)
handlers.ComputeInstanceAllowlist(c)
if w.Code != http.StatusOK {
t.Fatalf("status: want 200, got %d", w.Code)
}
var got struct {
Providers []struct {
ID string `json:"id"`
Label string `json:"label"`
DefaultInstance string `json:"default_instance"`
DisplayDefault string `json:"display_default"`
Instances []string `json:"instances"`
} `json:"providers"`
}
if err := json.Unmarshal(w.Body.Bytes(), &got); err != nil {
t.Fatalf("unmarshal response: %v (body=%s)", err, w.Body.String())
}
// Canvas's CLOUD_PROVIDER_OPTIONS (CreateWorkspaceDialog.tsx:68):
// { value: "aws", label: "AWS (default)" }
// { value: "gcp", label: "GCP" }
// { value: "hetzner", label: "Hetzner" }
// The order in the canvas is: aws, gcp, hetzner. The SSOT
// render-order is: aws, gcp, hetzner (see
// workspaceComputeMetadataRenderOrder). MATCHES.
//
// DEFAULT_HEADLESS_INSTANCE_TYPE (line 60): "t3.medium" (AWS only;
// the canvas hardcodes the AWS default and the SSOT supplies
// the same value for the other providers).
// DEFAULT_DISPLAY_INSTANCE_TYPE (line 62): "t3.xlarge" (AWS only).
//
// The canvas's <option> list (line 664-667) has 4 AWS display
// types: t3.large, t3.xlarge, m6i.xlarge, c6i.xlarge. The SSOT
// has 7 AWS types (the canvas's 4 are a SUBSET). For non-AWS
// providers, the canvas doesn't hardcode display options — the
// SSOT provides them.
//
// To stay behavior-preserving on the EXACT values the canvas
// hardcodes (3 providers + 4 AWS display types + AWS defaults),
// the test pins the values the canvas has. A future canvas
// migration can use the FULL SSOT (more options for the
// create flow) — that's a UX improvement, not a regression.
canvasHardcoded := map[string]struct {
label string
defaultInstance string
displayDefault string
displayInstanceSubset []string // the <option> list (subset of full instances)
}{
"aws": {
label: "AWS (default)",
defaultInstance: "t3.medium",
displayDefault: "t3.xlarge",
displayInstanceSubset: []string{"t3.large", "t3.xlarge", "m6i.xlarge", "c6i.xlarge"},
},
"gcp": {
label: "GCP",
defaultInstance: "e2-standard-2",
displayDefault: "e2-standard-4",
// canvas doesn't hardcode gcp display options
displayInstanceSubset: nil,
},
"hetzner": {
label: "Hetzner",
defaultInstance: "cpx31",
displayDefault: "cpx41",
// canvas doesn't hardcode hetzner display options
displayInstanceSubset: nil,
},
}
// Index by id for order-independent assertion.
gotByID := make(map[string]struct {
label, defaultInstance, displayDefault string
instances []string
})
for _, p := range got.Providers {
gotByID[p.ID] = struct {
label, defaultInstance, displayDefault string
instances []string
}{p.Label, p.DefaultInstance, p.DisplayDefault, p.Instances}
}
for id, want := range canvasHardcoded {
g, ok := gotByID[id]
if !ok {
t.Errorf("endpoint response missing provider %q (was: %v) — would force the canvas to fall back to its hardcoded list, defeating the SSOT consolidation", id, gotByID)
continue
}
if g.label != want.label {
t.Errorf("provider %q: label = %q, want %q (matches canvas CLOUD_PROVIDER_OPTIONS — drift here would change the visible label)", id, g.label, want.label)
}
if g.defaultInstance != want.defaultInstance {
t.Errorf("provider %q: default_instance = %q, want %q (matches canvas DEFAULT_HEADLESS_INSTANCE_TYPE = %q for AWS; SSOT supplies the same for non-AWS)", id, g.defaultInstance, want.defaultInstance, want.defaultInstance)
}
if g.displayDefault != want.displayDefault {
t.Errorf("provider %q: display_default = %q, want %q (matches canvas DEFAULT_DISPLAY_INSTANCE_TYPE = %q for AWS; SSOT supplies the same for non-AWS)", id, g.displayDefault, want.displayDefault, want.displayDefault)
}
// For AWS, the canvas's <option> list (4 types) MUST be a
// subset of the SSOT's full instance list. For non-AWS,
// the canvas doesn't hardcode display options — the SSOT
// provides them (no subset check).
if want.displayInstanceSubset != nil {
ssotSet := make(map[string]struct{}, len(g.instances))
for _, inst := range g.instances {
ssotSet[inst] = struct{}{}
}
for _, canvasInst := range want.displayInstanceSubset {
if _, ok := ssotSet[canvasInst]; !ok {
t.Errorf("provider %q: canvas's hardcoded <option> list contains %q, but the SSOT's instances list does not. The canvas's 4 hardcoded display types must remain in the SSOT or the migration would drop options the user could previously pick.", id, canvasInst)
}
}
}
}
}
@@ -139,6 +139,26 @@ func Setup(hub *ws.Hub, broadcaster *events.Broadcaster, prov *provisioner.Provi
// backend rejects (#2489).
r.GET("/compute/metadata", handlers.ComputeMetadata)
// /compute/instance-allowlist — core#2489 phase-3: auth-gated SSOT for
// the canvas's CreateWorkspaceDialog. Behavior-preserving counterpart
// of the public /compute/metadata: same per-provider shape (id/label/
// default_instance/instances) plus a display_default per provider.
// The canvas's CreateWorkspaceDialog hardcoded CLOUD_PROVIDER_OPTIONS
// + DEFAULT_HEADLESS_INSTANCE_TYPE + DEFAULT_DISPLAY_INSTANCE_TYPE +
// the <option> list (4 AWS display types) — this endpoint returns
// the SSOT values for all of those, so a future canvas PR can
// REPLACE the hardcoded constants with a single fetch.
//
// AUTH: AdminAuth (workspace-token pattern — ADMIN_TOKEN, org-scoped
// API token, or verified CP session cookie). Same auth tier as the
// other /api/v1/compute endpoints that require a bearer. NOT
// unauthenticated (unlike /compute/metadata) because the endpoint
// replaces what was a canvas-side constant with a server-side
// resource — and a future canvas migration would attach the same
// admin bearer the canvas already sends for every other admin
// fetch.
r.GET("/compute/instance-allowlist", middleware.AdminAuth(db.DB), handlers.ComputeInstanceAllowlist)
// /admin/liveness — per-subsystem last-tick timestamps. Operators read this
// to catch stuck-but-not-crashed goroutines (the failure mode that caused
// the 12h scheduler outage of 2026-04-14, issue #85). Any subsystem whose