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v0.0.1 (#8)

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Co-authored-by: Tasnim Kabir Sadik <tksadik92@gmail.com>
Reviewed-on: wrenn/sandbox#8
This commit is contained in:
Rafeed M. Bhuiyan
2026-04-09 19:24:49 +00:00
parent 32e5a5a715
commit d3e4812e46
199 changed files with 24552 additions and 2776 deletions
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25
internal/vm/manager.go
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@ -71,6 +71,13 @@ func (m *Manager) Create(ctx context.Context, cfg VMConfig) (*VM, error) {
return nil, fmt.Errorf("start VM: %w", err)
}
// Step 5: Push sandbox metadata into MMDS so envd can read
// WRENN_SANDBOX_ID and WRENN_TEMPLATE_ID from inside the guest.
if err := client.setMMDS(ctx, cfg.SandboxID, cfg.TemplateID); err != nil {
_ = proc.stop()
return nil, fmt.Errorf("set MMDS metadata: %w", err)
}
vm := &VM{
Config: cfg,
process: proc,
@ -108,6 +115,12 @@ func configureVM(ctx context.Context, client *fcClient, cfg *VMConfig) error {
return fmt.Errorf("set machine config: %w", err)
}
// MMDS config — enable V2 token access on eth0 so that envd can read
// WRENN_SANDBOX_ID and WRENN_TEMPLATE_ID from inside the guest.
if err := client.setMMDSConfig(ctx, "eth0"); err != nil {
return fmt.Errorf("set MMDS config: %w", err)
}
return nil
}
@ -238,6 +251,12 @@ func (m *Manager) CreateFromSnapshot(ctx context.Context, cfg VMConfig, snapPath
return nil, fmt.Errorf("resume VM: %w", err)
}
// Step 5: Push sandbox metadata into MMDS.
if err := client.setMMDS(ctx, cfg.SandboxID, cfg.TemplateID); err != nil {
_ = proc.stop()
return nil, fmt.Errorf("set MMDS metadata: %w", err)
}
vm := &VM{
Config: cfg,
process: proc,
@ -250,6 +269,12 @@ func (m *Manager) CreateFromSnapshot(ctx context.Context, cfg VMConfig, snapPath
return vm, nil
}
// PID returns the process ID of the unshare wrapper process.
// The actual Firecracker process is a direct child of this PID.
func (v *VM) PID() int {
return v.process.cmd.Process.Pid
}
// Get returns a running VM by sandbox ID.
func (m *Manager) Get(sandboxID string) (*VM, bool) {
vm, ok := m.vms[sandboxID]