wtf.js

  const findInstance = (instances, name) => {
    const found = instances.find((inst) => {
      return inst.Tags.some((tag) => {
        return tag.Key === `opsworks:layer:${name}`;
      });
    });
    console.log(found);
    return found;
  };

  const resp = await EC2.describeInstances(instanceParams).promise();
  const admin = findInstance(resp.Reservations[0].Instances, 'admin');
  console.log(admin);