要在Apache Airflow的故障邮件中包含日志，您可以使用以下代码示例来更改默认的电子邮件模板：

首先，创建一个名为email_on_failure_with_logs.py的Python文件，并将以下代码复制到文件中：

from airflow.utils.email import send_email
from airflow import configuration as conf
from airflow.exceptions import AirflowException


def email_on_failure_with_logs(context):
    """Send custom email on task failure with logs."""
    try:
        subject = "[Airflow] Task Failed"
        html_content = """
        
Task Failed
        
DAG: {0}
        
Task: {1}
        
Execution Time: {2}
        
Log:
        
{3}
        """.format(
            context['task_instance'].dag_id,
            context['task_instance'].task_id,
            context['execution_date'],
            context['task_instance'].log_url,
        )
        send_email(
            to=conf.get('email', 'EMAIL_DEFAULT_TO'),
            subject=subject,
            html_content=html_content
        )
    except AirflowException as e:
        raise AirflowException("Failed to send email: " + str(e))

然后，在您的DAG文件中，导入email_on_failure_with_logs方法，并在您的任务定义中添加on_failure_callback参数，如下所示：

from email_on_failure_with_logs import email_on_failure_with_logs

default_args = {
    'on_failure_callback': email_on_failure_with_logs,
    # other default arguments
}

with DAG('your_dag_id', default_args=default_args, schedule_interval=None) as dag:
    # your tasks

这样，当任务失败时，将会发送一封包含日志的电子邮件。请确保在airflow.cfg配置文件中配置了正确的电子邮件设置。