如何在 Airflow 中 运行 bash 脚本文件
How to run bash script file in Airflow
我有一个 bash 脚本可以创建一个我想在 Airflow 中 运行 的文件(如果它不存在),但是当我尝试时它失败了。我该怎么做?
#!/bin/bash
#create_file.sh
file=filename.txt
if [ ! -e "$file" ] ; then
touch "$file"
fi
if [ ! -w "$file" ] ; then
echo cannot write to $file
exit 1
fi
下面是我在 Airflow 中的调用方式:
create_command = """
./scripts/create_file.sh
"""
t1 = BashOperator(
task_id= 'create_file',
bash_command=create_command,
dag=dag
)
lib/python2.7/site-packages/airflow/operators/bash_operator.py", line 83, in execute
raise AirflowException("Bash command failed")
airflow.exceptions.AirflowException: Bash command failed
根据教程,这是可以的:
t2 = BashOperator(
task_id='sleep',
bash_command='sleep 5',
retries=3,
dag=dag)
但是您正在向它传递多行命令
create_command = """
./scripts/create_file.sh
"""
应该是
create_command = "./scripts/create_file.sh "
此外,您还必须确保您位于正确的目录中,以避免出现神秘错误。例如:
create_command = "./scripts/create_file.sh "
if os.path.exists(create_command):
t1 = BashOperator(
task_id= 'create_file',
bash_command=create_command,
dag=dag
)
else:
raise Exception("Cannot locate {}".format(create_command))
t2 = BashOperator(
task_id='bash_example',
# "scripts" folder is under "/usr/local/airflow/dags"
bash_command="scripts/test.sh",
dag=dag)
我有一个 bash 脚本可以创建一个我想在 Airflow 中 运行 的文件(如果它不存在),但是当我尝试时它失败了。我该怎么做?
#!/bin/bash
#create_file.sh
file=filename.txt
if [ ! -e "$file" ] ; then
touch "$file"
fi
if [ ! -w "$file" ] ; then
echo cannot write to $file
exit 1
fi
下面是我在 Airflow 中的调用方式:
create_command = """
./scripts/create_file.sh
"""
t1 = BashOperator(
task_id= 'create_file',
bash_command=create_command,
dag=dag
)
lib/python2.7/site-packages/airflow/operators/bash_operator.py", line 83, in execute
raise AirflowException("Bash command failed")
airflow.exceptions.AirflowException: Bash command failed
根据教程,这是可以的:
t2 = BashOperator(
task_id='sleep',
bash_command='sleep 5',
retries=3,
dag=dag)
但是您正在向它传递多行命令
create_command = """
./scripts/create_file.sh
"""
应该是
create_command = "./scripts/create_file.sh "
此外,您还必须确保您位于正确的目录中,以避免出现神秘错误。例如:
create_command = "./scripts/create_file.sh "
if os.path.exists(create_command):
t1 = BashOperator(
task_id= 'create_file',
bash_command=create_command,
dag=dag
)
else:
raise Exception("Cannot locate {}".format(create_command))
t2 = BashOperator(
task_id='bash_example',
# "scripts" folder is under "/usr/local/airflow/dags"
bash_command="scripts/test.sh",
dag=dag)