tsiry-sandratraina.com
A simple CLI tool to spin up OpenBSD virtual machines using QEMU with minimal fuss.
Enhance VM start command with additional options for CPU, memory, disk format, and networking; integrate flag parsing for improved configuration
+1
deno.json
+1
deno.json
···
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},
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"imports": {
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"@cliffy/command": "jsr:@cliffy/command@^1.0.0-rc.8",
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"@cliffy/flags": "jsr:@cliffy/flags@^1.0.0-rc.8",
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"@cliffy/table": "jsr:@cliffy/table@^1.0.0-rc.8",
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"@db/sqlite": "jsr:@db/sqlite@^0.12.0",
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"@paralleldrive/cuid2": "npm:@paralleldrive/cuid2@^3.0.4",
+3
-1
deno.lock
+3
-1
deno.lock
···
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"specifiers": {
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"jsr:@cliffy/command@^1.0.0-rc.8": "1.0.0-rc.8",
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"jsr:@cliffy/flags@1.0.0-rc.8": "1.0.0-rc.8",
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"jsr:@cliffy/flags@^1.0.0-rc.8": "1.0.0-rc.8",
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"jsr:@cliffy/internal@1.0.0-rc.8": "1.0.0-rc.8",
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"jsr:@cliffy/table@1.0.0-rc.8": "1.0.0-rc.8",
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"jsr:@cliffy/table@^1.0.0-rc.8": "1.0.0-rc.8",
···
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"@cliffy/command@1.0.0-rc.8": {
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"integrity": "758147790797c74a707e5294cc7285df665422a13d2a483437092ffce40b5557",
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"dependencies": [
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-
"jsr:@cliffy/flags",
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"jsr:@cliffy/flags@1.0.0-rc.8",
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"jsr:@cliffy/internal",
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"jsr:@cliffy/table@1.0.0-rc.8",
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"jsr:@std/fmt@~1.0.2",
···
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"workspace": {
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"dependencies": [
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"jsr:@cliffy/command@^1.0.0-rc.8",
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"jsr:@cliffy/flags@^1.0.0-rc.8",
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"jsr:@cliffy/table@^1.0.0-rc.8",
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"jsr:@db/sqlite@0.12",
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"jsr:@soapbox/kysely-deno-sqlite@^2.2.0",
+36
-1
main.ts
+36
-1
main.ts
···
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})
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.command("start", "Start a virtual machine")
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.arguments("<vm-name:string>")
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.option("--detach, -d", "Run VM in the background and print VM name")
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.option("-c, --cpu <type:string>", "Type of CPU to emulate", {
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default: "host",
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})
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.option("-C, --cpus <number:number>", "Number of CPU cores", {
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default: 2,
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})
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.option("-m, --memory <size:string>", "Amount of memory for the VM", {
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default: "2G",
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})
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.option("-i, --image <path:string>", "Path to VM disk image")
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.option(
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"--disk-format <format:string>",
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"Disk image format (e.g., qcow2, raw)",
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{
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default: "raw",
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},
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)
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.option(
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"--size <size:string>",
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"Size of the VM disk image to create if it doesn't exist (e.g., 20G)",
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{
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default: "20G",
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},
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)
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.option(
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"-b, --bridge <name:string>",
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"Name of the network bridge to use for networking (e.g., br0)",
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)
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.option(
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"-d, --detach",
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"Run VM in the background and print VM name",
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)
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.option(
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"-p, --port-forward <mappings:string>",
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"Port forwarding rules in the format hostPort:guestPort (comma-separated for multiple)",
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)
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.action(async (options: unknown, vmName: string) => {
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await start(vmName, Boolean((options as { detach: boolean }).detach));
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})
+20
-1
src/subcommands/start.ts
+20
-1
src/subcommands/start.ts
···
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import { parseFlags } from "@cliffy/flags";
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import _ from "lodash";
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import { LOGS_DIR } from "../constants.ts";
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import type { VirtualMachine } from "../db.ts";
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import { getInstanceState, updateInstanceState } from "../state.ts";
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import { setupFirmwareFilesIfNeeded, setupNATNetworkArgs } from "../utils.ts";
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export default async function (name: string, detach: boolean = false) {
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const vm = await getInstanceState(name);
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let vm = await getInstanceState(name);
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if (!vm) {
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console.error(
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`Virtual machine with name or ID ${name} not found.`,
···
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}
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console.log(`Starting virtual machine ${vm.name} (ID: ${vm.id})...`);
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+
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vm = mergeFlags(vm);
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const qemu = Deno.build.arch === "aarch64"
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? "qemu-system-aarch64"
···
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}
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}
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}
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+
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function mergeFlags(vm: VirtualMachine): VirtualMachine {
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const { flags } = parseFlags(Deno.args);
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return {
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...vm,
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memory: flags.memory ? String(flags.memory) : vm.memory,
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cpus: flags.cpus ? Number(flags.cpus) : vm.cpus,
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cpu: flags.cpu ? String(flags.cpu) : vm.cpu,
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diskFormat: flags.diskFormat ? String(flags.diskFormat) : vm.diskFormat,
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portForward: flags.portForward ? String(flags.portForward) : vm.portForward,
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drivePath: flags.image ? String(flags.image) : vm.drivePath,
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bridge: flags.bridge ? String(flags.bridge) : vm.bridge,
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diskSize: flags.size ? String(flags.size) : vm.diskSize,
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};
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}