Implement VM Service with Cloud Hypervisor (#506)

* feat(vm): add initial implementation for managing cloudhypervisor vms

* feat: implement virtual machines with cloud-hypervisor vmm

* feat: successfully mount vm filesystem from initramfs

* feat: implement VM grpc API

* feat: return scope_id in response to build client

* feat: add nested auraed address if exists in vm

* chore: change package visibility

* chore: remove libvirt vm env for auraed

* feat: allocate a fixed set of IPs for VMs

* chore(client): rename vm service in aurae client

* feat: add vms to auraescript

* chore(auraed): remove orphaned changes to pid1 runtime

* chore(auraed): swap println for proper tracing when blocking signals

* chore: update license headers

* chore(auraed): ignore tests that require kvm, and kernel/disk images

api/v0/vms/vms.proto

@@ -46,25 +46,58 @@ service VmService {
 
   // Stop one or more VMs.
   rpc Stop(VmServiceStopRequest) returns (VmServiceStopResponse) {}
+
+  // List all VMs
+  rpc List(VmServiceListRequest) returns (VmServiceListResponse) {}
+}
+
+message VmServiceListRequest{}
+message VmServiceListResponse{
+  repeated VirtualMachineSummary machines = 1;
+}
+
+message VirtualMachineSummary {
+  // The identifier of the VM
+  string id = 1;
+
+  // Status of the VM
+  string status = 2;
+
+  // The memory size of VM
+  uint32 mem_size_mb = 3;
+
+  // The number of vCPUs for the VM
+  uint32 vcpu_count = 4;
+
+  // The path to the VM kernel image
+  string kernel_img_path = 5;
+
+  // Path to the image mounted as the root directory of the VM
+  string root_dir_path = 6;
+
+  // Auraed server address of the VM
+  string auraed_address = 7;
 }
 
 message VmServiceCreateRequest{
   VirtualMachine machine = 1;
 }
-
 message VmServiceCreateResponse{
   string vm_id = 1;
 }
 
-message VmServiceFreeRequest{}
-message VmServiceFreeResponse{
+message VmServiceFreeRequest{
   string vm_id = 1;
 }
+message VmServiceFreeResponse{}
 
 message VmServiceStartRequest{
   string vm_id = 1;
 }
-message VmServiceStartResponse{}
+message VmServiceStartResponse{
+  // Auraed server address of the VM
+  string auraed_address = 1;
+}
 
 message VmServiceStopRequest{
   string vm_id = 1;
@@ -94,46 +127,35 @@ message VirtualMachine {
 
   // Additional drive mount configs
   repeated DriveMount drive_mounts = 7;
-}
-
-// Static IP configuration for a VM network interface
-message IPConfiguration {
-  // PrimaryAddr specifies, in CIDR notation, the primary address
-  // and subnet that a network interface will be assigned inside
-  // the VM.
-  string primary_addr = 1;
-
-  // GatewayAddr specifies the default gateway that a network interface
-  // should use inside the VM.
-  string gateway_addr = 2;
 
-  // Nameservers is a list of nameservers that the VM will be configured to use internally
-  repeated string nameservers = 3;
+  // Auraed server address of the VM
+  string auraed_address = 8;
 }
 
-// Message to specify the block device config for a  VM
+// Message to specify the root filesystem config for a  VM
 message RootDrive {
-  // The path on the host to the filesystem image or device
+  // The path on the host to the filesystem image
   // that will supply the rootfs of the VM.
-  string host_path = 1;
+  string image_path = 1;
 
-  // Mount the root filesystem as read-write. (Default: false)
-  bool is_writeable = 2;
+  // Mount the root filesystem as read-only. (Default: false)
+  bool read_only = 2;
 }
 
+// Message to specify a block device config for a VM
 message DriveMount {
-  // The path on the host to the filesystem image or device
+  // The path on the host to the filesystem image
   // that will be mounted inside the VM.
-  string host_path = 1;
+  string image_path = 1;
 
-  // The path inside the VM guest at which the filesystem image or device will be mounted.
+  // The path inside the VM guest at which the filesystem image will be mounted.
   string vm_path = 2;
 
   // The filesystem type (i.e. ext4, xfs, etc.), as
   // used when mounting the filesystem image inside the VM. The VM guest kernel
   // is expected to have support for this filesystem.
   string fs_type = 3;
 
-  // Mount the root filesystem as read-write. (Default: false)
-  bool is_writeable = 4;
+  // Mount the root filesystem as read-only. (Default: false)
+  bool read_only = 4;
 }

auraed/Cargo.toml

@@ -46,9 +46,9 @@ libcgroups = { git = "https://github.com/containers/youki", rev = "5b62356e377de
 libcontainer = { git = "https://github.com/containers/youki", rev = "5b62356e377def45c36c29183c586c4302685cf8", default-features = false, features = [
     "v2",
 ] }
-log = "0.4.17"
+log = "0.4.21"
 netlink-packet-route = "0.13.0" # Used for netlink_packet_route::rtnl::address::nlas definition
-nix = { workspace = true, features = ["sched", "mount", "signal"] }
+nix = { workspace = true, features = ["sched", "mount", "signal", "net"] }
 oci-spec = "0.6.4"
 once_cell = "1"
 procfs = "0.16.0"
@@ -77,6 +77,16 @@ uuid = { workspace = true }
 validation = { workspace = true, features = ["regex", "tonic"] }
 validation_macros = { path = "../crates/validation/macros" }
 walkdir = "2"
+vmm = { git = "https://github.com/cloud-hypervisor/cloud-hypervisor", tag = "v39.0", default-features = false, features = [
+    "kvm",
+] }
+hypervisor = { git = "https://github.com/cloud-hypervisor/cloud-hypervisor", tag = "v39.0", features = [
+    "kvm",
+] }
+net_util = { git = "https://github.com/cloud-hypervisor/cloud-hypervisor", tag = "v39.0" }
+vmm-sys-util = "0.12.1"
+vm-memory = "0.14.1"
+seccompiler = "0.4.0"
 
 [dev-dependencies]
 futures-util = { workspace = true }