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Add unikernel runtime: run services as Nanos VMs under QEMU/KVM

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Implements the hypervisor design's Phase 1: a second runtime.Runtime
backend (QEMU) that runs each service component as a Nanos unikernel VM
instead of a podman container, selected per-component via a new
runtime = "unikernel" service-def field.

- internal/runtime/qemu.go: QEMURuntime. Pull extracts the ELF from the
  OCI image; Run does `ops build` + boots qemu-system-x86_64 with KVM,
  user-mode net port-forwards, QMP control socket and serial console log;
  Stop/Remove/Inspect/List/Logs map onto VM lifecycle + state dir.
- proto/registry/servicedef: add runtime, memory_mb, vcpus fields
  (registry migration 5).
- agent: holds both runtimes; runtimeFor() selects per component;
  listAllContainers() merges containers + VMs so drift/status see both.
  Unikernel runtime auto-enables on nodes with /dev/kvm + ops.

Validated end-to-end on straylight: a test service deploys via
`mcp deploy --direct`, boots as a Nanos unikernel, serves HTTP through
the agent port-forward, and reports running via `mcp status`/`mcp logs`.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Kyle Isom
2026-06-11 00:54:49 -07:00
parent 3b08caaa0a
commit d56f224359
30 changed files with 949 additions and 152 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
internal/registry/registry_test.go
View File

@@ -37,7 +37,7 @@ func TestServiceCRUD(t *testing.T) {
db := openTestDB(t)
// Create
if err := CreateService(db, "metacrypt", true); err != nil {
if err := CreateService(db, "metacrypt", true, ""); err != nil {
t.Fatalf("create: %v", err)
}
@@ -60,7 +60,7 @@ func TestServiceCRUD(t *testing.T) {
}
// Update active
if err := UpdateServiceActive(db, "metacrypt", false); err != nil {
if err := UpdateServiceActive(db, "metacrypt", false, ""); err != nil {
t.Fatalf("update: %v", err)
}
s, _ = GetService(db, "metacrypt")
@@ -80,17 +80,17 @@ func TestServiceCRUD(t *testing.T) {
func TestServiceDuplicateName(t *testing.T) {
db := openTestDB(t)
if err := CreateService(db, "metacrypt", true); err != nil {
if err := CreateService(db, "metacrypt", true, ""); err != nil {
t.Fatalf("first create: %v", err)
}
if err := CreateService(db, "metacrypt", true); err == nil {
if err := CreateService(db, "metacrypt", true, ""); err == nil {
t.Fatal("expected error on duplicate name")
}
}
func TestComponentCRUD(t *testing.T) {
db := openTestDB(t)
if err := CreateService(db, "metacrypt", true); err != nil {
if err := CreateService(db, "metacrypt", true, ""); err != nil {
t.Fatalf("create service: %v", err)
}
@@ -198,7 +198,7 @@ func TestComponentCRUD(t *testing.T) {
func TestComponentCompositePK(t *testing.T) {
db := openTestDB(t)
if err := CreateService(db, "metacrypt", true); err != nil {
if err := CreateService(db, "metacrypt", true, ""); err != nil {
t.Fatalf("create service: %v", err)
}
@@ -213,7 +213,7 @@ func TestComponentCompositePK(t *testing.T) {
func TestCascadeDelete(t *testing.T) {
db := openTestDB(t)
if err := CreateService(db, "metacrypt", true); err != nil {
if err := CreateService(db, "metacrypt", true, ""); err != nil {
t.Fatalf("create service: %v", err)
}
@@ -239,7 +239,7 @@ func TestCascadeDelete(t *testing.T) {
func TestComponentRoutes(t *testing.T) {
db := openTestDB(t)
if err := CreateService(db, "svc", true); err != nil {
if err := CreateService(db, "svc", true, ""); err != nil {
t.Fatalf("create service: %v", err)
}
@@ -298,7 +298,7 @@ func TestComponentRoutes(t *testing.T) {
func TestRouteHostPort(t *testing.T) {
db := openTestDB(t)
if err := CreateService(db, "svc", true); err != nil {
if err := CreateService(db, "svc", true, ""); err != nil {
t.Fatalf("create service: %v", err)
}
@@ -363,7 +363,7 @@ func TestRouteHostPort(t *testing.T) {
func TestRouteCascadeDelete(t *testing.T) {
db := openTestDB(t)
if err := CreateService(db, "svc", true); err != nil {
if err := CreateService(db, "svc", true, ""); err != nil {
t.Fatalf("create service: %v", err)
}