78 lines
2.2 KiB
TypeScript
78 lines
2.2 KiB
TypeScript
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import { DEFAULT_CONFIG_PATH } from './config.ts';
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const SERVICE_FILE_PATH = '/etc/systemd/system/uptimerunner.service';
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export class UptimeRunnerSystemd {
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private readonly serviceTemplate = `[Unit]
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Description=uptime.link Runner Agent
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After=network-online.target
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Wants=network-online.target
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[Service]
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ExecStart=/usr/local/bin/uptimerunner run --config ${DEFAULT_CONFIG_PATH}
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Restart=always
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RestartSec=10
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User=root
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Group=root
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Environment=PATH=/usr/bin:/usr/local/bin
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WorkingDirectory=/opt/uptimerunner
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[Install]
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WantedBy=multi-user.target
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`;
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public async install(): Promise<void> {
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this.assertRoot();
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await Deno.writeTextFile(SERVICE_FILE_PATH, this.serviceTemplate);
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await run('systemctl', ['daemon-reload']);
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await run('systemctl', ['enable', 'uptimerunner.service']);
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console.log(`Service installed: ${SERVICE_FILE_PATH}`);
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}
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public async uninstall(): Promise<void> {
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this.assertRoot();
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await run('systemctl', ['disable', '--now', 'uptimerunner.service']).catch(() => null);
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await Deno.remove(SERVICE_FILE_PATH).catch(() => null);
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await run('systemctl', ['daemon-reload']);
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console.log('Service removed.');
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}
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public async start(): Promise<void> {
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await run('systemctl', ['start', 'uptimerunner.service']);
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}
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public async stop(): Promise<void> {
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await run('systemctl', ['stop', 'uptimerunner.service']);
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}
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public async restart(): Promise<void> {
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await run('systemctl', ['restart', 'uptimerunner.service']);
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}
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public async status(): Promise<void> {
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await run('systemctl', ['status', 'uptimerunner.service', '--no-pager']);
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}
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public async logs(): Promise<void> {
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await run('journalctl', ['-u', 'uptimerunner.service', '-n', '120', '--no-pager']);
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}
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private assertRoot(): void {
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if (Deno.uid && Deno.uid() !== 0) {
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throw new Error('This service command must run as root.');
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}
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}
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}
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async function run(commandArg: string, argsArg: string[]): Promise<void> {
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const command = new Deno.Command(commandArg, {
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args: argsArg,
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stdout: 'inherit',
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stderr: 'inherit',
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});
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const output = await command.output();
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if (!output.success) {
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throw new Error(`${commandArg} ${argsArg.join(' ')} exited with ${output.code}`);
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}
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}
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