actions-toolkit/src/docker.ts

import * as exec from '@actions/exec';

export class Docker {
  public static async isAvailable(): Promise<boolean> {
    return await exec
      .getExecOutput('docker', undefined, {
        ignoreReturnCode: true,
        silent: true
      })
      .then(res => {
        if (res.stderr.length > 0 && res.exitCode != 0) {
          return false;
        }
        return res.exitCode == 0;
      })
      // eslint-disable-next-line @typescript-eslint/no-unused-vars
      .catch(error => {
        return false;
      });
  }
}