docker: isDaemonRunning func

Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>

Author: crazy-max

__tests__/docker/docker.test.itg.ts

@@ -20,6 +20,12 @@ import {Docker} from '../../src/docker/docker';
 
 const maybe = !process.env.GITHUB_ACTIONS || (process.env.GITHUB_ACTIONS === 'true' && process.env.ImageOS && process.env.ImageOS.startsWith('ubuntu')) ? describe : describe.skip;
 
+maybe('isDaemonRunning', () => {
+  it('checks if daemon is running', async () => {
+    expect(await Docker.isDaemonRunning()).toBe(true);
+  });
+});
+
 maybe('pull', () => {
   // prettier-ignore
   test.each([

src/docker/docker.ts

@@ -54,6 +54,17 @@ export class Docker {
       });
   }
 
+  public static async isDaemonRunning(): Promise<boolean> {
+    try {
+      await Docker.getExecOutput([`version`], {
+        silent: true
+      });
+      return true;
+    } catch (e) {
+      return false;
+    }
+  }
+
   public static async exec(args?: string[], options?: ExecOptions): Promise<number> {
     return Exec.exec('docker', args, Docker.execOptions(options));
   }