147 lines
4.6 KiB
OCaml
147 lines
4.6 KiB
OCaml
(* (c) 2018 Hannes Mehnert, all rights reserved *)
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open Astring
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open Vmm_core
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let print_result version (header, reply) =
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if not (Vmm_commands.version_eq header.Vmm_commands.version version) then
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Logs.err (fun m -> m "version not equal")
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else match reply with
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| `Success _ -> Logs.app (fun m -> m "%a" Vmm_commands.pp_wire (header, reply))
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| `Data _ -> Logs.app (fun m -> m "%a" Vmm_commands.pp_wire (header, reply))
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| `Failure _ -> Logs.warn (fun m -> m "%a" Vmm_commands.pp_wire (header, reply))
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| `Command _ -> Logs.err (fun m -> m "unexpected command %a" Vmm_commands.pp_wire (header, reply))
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let setup_log style_renderer level =
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Fmt_tty.setup_std_outputs ?style_renderer ();
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Logs.set_level level;
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Logs.set_reporter (Logs_fmt.reporter ~dst:Format.std_formatter ())
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let create_vm force image cpuid memory argv block_device network_interfaces compression =
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let open Rresult.R.Infix in
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Bos.OS.File.read (Fpath.v image) >>| fun image ->
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let image = match compression with
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| 0 -> `Hvt_amd64, Cstruct.of_string image
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| level ->
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let img = Vmm_compress.compress ~level image in
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`Hvt_amd64_compressed, Cstruct.of_string img
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and argv = match argv with [] -> None | xs -> Some xs
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in
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let config = Unikernel.{ cpuid ; memory ; block_device ; network_interfaces ; argv ; image } in
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if force then `Unikernel_force_create config else `Unikernel_create config
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let policy vms memory cpus block bridges =
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let bridges = String.Set.of_list bridges
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and cpuids = IS.of_list cpus
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in
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Policy.{ vms ; cpuids ; memory ; block ; bridges }
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open Cmdliner
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let setup_log =
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Term.(const setup_log
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$ Fmt_cli.style_renderer ()
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$ Logs_cli.level ())
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let host_port : (string * int) Arg.converter =
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let parse s =
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match Astring.String.cut ~sep:":" s with
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| None -> `Error "broken: no port specified"
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| Some (hostname, port) ->
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try
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`Ok (hostname, int_of_string port)
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with
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Not_found -> `Error "failed to parse port"
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in
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parse, fun ppf (h, p) -> Format.fprintf ppf "%s:%d" h p
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let vm_c =
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let parse s = match Name.of_string s with
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| Error (`Msg msg) -> `Error msg
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| Ok name -> `Ok name
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in
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(parse, Name.pp)
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let opt_vm_name =
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let doc = "name of virtual machine." in
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Arg.(value & opt vm_c Name.root & info [ "n" ; "name"] ~doc)
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let compress_level =
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let doc = "Compression level (0 for no compression, 1-3 fixed with static huffman, 4-9 dynamic with canonic huffman)" in
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Arg.(value & opt int 9 & info [ "compression-level" ] ~doc)
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let force =
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let doc = "force VM creation." in
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Arg.(value & flag & info [ "f" ; "force" ] ~doc)
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let cpus =
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let doc = "CPUids to allow" in
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Arg.(value & opt_all int [] & info [ "cpu" ] ~doc)
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let vms =
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let doc = "Number of VMs to allow" in
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Arg.(required & pos 1 (some int) None & info [] ~doc ~docv:"VMS")
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let image =
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let doc = "File of virtual machine image." in
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Arg.(required & pos 1 (some file) None & info [] ~doc ~docv:"IMAGE")
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let vm_name =
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let doc = "Name virtual machine." in
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Arg.(required & pos 0 (some vm_c) None & info [] ~doc ~docv:"VM")
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let block_name =
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let doc = "Name of block device." in
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Arg.(required & pos 0 (some vm_c) None & info [] ~doc ~docv:"BLOCK")
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let block_size =
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let doc = "Block size in MB." in
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Arg.(required & pos 1 (some int) None & info [] ~doc ~docv:"SIZE")
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let opt_block_name =
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let doc = "Name of block device." in
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Arg.(value & opt vm_c Name.root & info [ "name" ] ~doc)
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let opt_block_size =
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let doc = "Block storage to allow in MB" in
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Arg.(value & opt (some int) None & info [ "size" ] ~doc)
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let mem =
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let doc = "Memory to allow in MB" in
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Arg.(value & opt int 512 & info [ "mem" ] ~doc)
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let bridge =
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let doc = "Bridges to allow" in
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Arg.(value & opt_all string [] & info [ "bridge" ] ~doc)
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let cpu =
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let doc = "CPUid to use" in
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Arg.(value & opt int 0 & info [ "cpu" ] ~doc)
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let vm_mem =
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let doc = "Assigned memory in MB" in
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Arg.(value & opt int 32 & info [ "mem" ] ~doc)
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let args =
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let doc = "Boot arguments" in
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Arg.(value & opt_all string [] & info [ "arg" ] ~doc)
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let block =
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let doc = "Block device name" in
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Arg.(value & opt (some string) None & info [ "block" ] ~doc)
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let net =
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let doc = "Network device names" in
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Arg.(value & opt_all string [] & info [ "net" ] ~doc)
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let timestamp_c =
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let parse s = match Ptime.of_rfc3339 s with
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| Ok (t, _, _) -> `Ok t
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| Error _ -> `Error "couldn't parse timestamp"
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in
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(parse, Ptime.pp_rfc3339 ())
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let since =
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let doc = "Receive data since a specified timestamp (RFC 3339 encoded)" in
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Arg.(value & opt (some timestamp_c) None & info [ "since" ] ~doc)
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