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fpm2.py
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from airflow.decorators import dag
from datetime import datetime
from airflow.providers.ssh.operators.ssh import SSHOperator
from airflow import DAG
from airflow.models import Variable
import json
from airflow.providers.slack.operators.slack_webhook import SlackWebhookOperator
from airflow.hooks.base_hook import BaseHook
def task_failure_alert(context):
slack_webhook_token = BaseHook.get_connection('slack_webhook_fpm2').password
slack_msg = f"""
:red_circle: Task Failed. Please go to Airflow for more details.
*Task*: {context.get('task_instance').task_id}
*Dag*: {context.get('task_instance').dag_id}
*Execution Time*: {context.get('execution_date')}
*Log Url*: {context.get('task_instance').log_url}
"""
failed_alert = SlackWebhookOperator(
task_id='slack_failed_alert',
http_conn_id='slack_webhook_fpm2',
webhook_token=slack_webhook_token,
message=slack_msg,
username='airflow',
channel='#fpm2-sarfinder-aws-hpc'
)
return failed_alert.execute(context=context)
with DAG(
dag_id="FPM2",
schedule_interval=None,
start_date=datetime(2022, 1, 1),
catchup=False,
on_failure_callback=task_failure_alert
) as dag:
dir_name = Variable.get("FPM2_variables", deserialize_json=True)["dir_name"],
prepare_directory = SSHOperator(
task_id="00a_prepare_directory_fpm2.sh",
ssh_conn_id='ssh',
command='source ~/.bash_profile; 00a_prepare_directory_fpm2.sh "{{var.json.FPM2_variables}}"',
cmd_timeout=None,
conn_timeout=None
)
get_dem = SSHOperator(
task_id="00_get_dem.sh",
ssh_conn_id='ssh',
command='source ~/.bash_profile; cd urgent_response/{{var.json.FPM2_variables.dir_name}}; 00_get_dem.sh ""',
cmd_timeout=None,
conn_timeout=None
)
update_download_config = SSHOperator(
task_id="01a_update_download_config.sh",
ssh_conn_id='ssh',
command='source ~/.bash_profile; cd urgent_response/{{var.json.FPM2_variables.dir_name}}; 01a_update_download_config.sh ""',
cmd_timeout=None,
conn_timeout=None
)
download= SSHOperator(
task_id="01b_download.sh",
ssh_conn_id='ssh',
command='source ~/.bash_profile; cd urgent_response/{{var.json.FPM2_variables.dir_name}}; 01b_download.sh ""',
cmd_timeout=None,
conn_timeout=None
)
symlink= SSHOperator(
task_id="02a_symlink_data.sh",
ssh_conn_id='ssh',
command='source ~/.bash_profile; cd urgent_response/{{var.json.FPM2_variables.dir_name}}; 02a_symlink_data.sh ""',
cmd_timeout=None,
conn_timeout=None
)
dpm2_response_setup= SSHOperator(
task_id="03_create_run_script.sh",
ssh_conn_id='ssh',
command='source ~/.bash_profile; cd urgent_response/{{var.json.FPM2_variables.dir_name}}; 03_create_run_script.sh ""',
cmd_timeout=None,
conn_timeout=None
)
auto_control_run1= SSHOperator(
task_id="04_auto_control.sh_start_run1.sh",
ssh_conn_id='ssh',
command='source ~/.bash_profile; cd urgent_response/{{var.json.FPM2_variables.dir_name}}; 04_auto_control.sh "{{var.json.FPM2_variables.dir_name}}_run1" "start" "run1" "run1"',
cmd_timeout=None,
conn_timeout=None
)
auto_control_run2= SSHOperator(
task_id="04_auto_control.sh_start_run2.sh",
ssh_conn_id='ssh',
command='source ~/.bash_profile; cd urgent_response/{{var.json.FPM2_variables.dir_name}}; 04_auto_control.sh "{{var.json.FPM2_variables.dir_name}}_run2" "start" "run2" "run2"',
cmd_timeout=None,
conn_timeout=None
)
auto_control_run2x5= SSHOperator(
task_id="04_auto_control.sh_start_run2x5.sh",
ssh_conn_id='ssh',
command='source ~/.bash_profile; cd urgent_response/{{var.json.FPM2_variables.dir_name}}; 04_auto_control.sh "{{var.json.FPM2_variables.dir_name}}_run2x5" "start" "run2x5" "run2x5"',
cmd_timeout=None,
conn_timeout=None
)
auto_control_run3= SSHOperator(
task_id="04_auto_control.sh_start_run3.sh",
ssh_conn_id='ssh',
command='source ~/.bash_profile; cd urgent_response/{{var.json.FPM2_variables.dir_name}}; 04_auto_control.sh "{{var.json.FPM2_variables.dir_name}}_run3" "start" "run3" "run3"',
cmd_timeout=None,
conn_timeout=None
)
auto_control_run4= SSHOperator(
task_id="04_auto_control.sh_start_run4.sh",
ssh_conn_id='ssh',
command='source ~/.bash_profile; cd urgent_response/{{var.json.FPM2_variables.dir_name}}; 04_auto_control.sh "{{var.json.FPM2_variables.dir_name}}_run4" "start" "run4" "run4"',
cmd_timeout=None,
conn_timeout=None
)
auto_control_run5= SSHOperator(
task_id="04_auto_control.sh_start_run5.sh",
ssh_conn_id='ssh',
command='source ~/.bash_profile; cd urgent_response/{{var.json.FPM2_variables.dir_name}}; 04_auto_control.sh "{{var.json.FPM2_variables.dir_name}}_run5" "start" "run5" "run5"',
cmd_timeout=None,
conn_timeout=None
)
auto_control_run6= SSHOperator(
task_id="04_auto_control.sh_start_run6.sh",
ssh_conn_id='ssh',
command='source ~/.bash_profile; cd urgent_response/{{var.json.FPM2_variables.dir_name}}; 04_auto_control.sh "{{var.json.FPM2_variables.dir_name}}_run6" "start" "run6" "run6"',
cmd_timeout=None,
conn_timeout=None
)
auto_control_run7= SSHOperator(
task_id="04_auto_control.sh_start_run7.sh",
ssh_conn_id='ssh',
command='source ~/.bash_profile; cd urgent_response/{{var.json.FPM2_variables.dir_name}}; 04_auto_control.sh "{{var.json.FPM2_variables.dir_name}}_run7" "start" "run7" "run7"',
cmd_timeout=None,
conn_timeout=None
)
post_run6_geocode_series= SSHOperator(
task_id="post_run6_geocode_series.sh",
ssh_conn_id='ssh',
command='source ~/.bash_profile; cd urgent_response/{{var.json.FPM2_variables.dir_name}}; post_run6_geocode_series.sh ""',
cmd_timeout=None,
conn_timeout=None
)
merge_fpm2_geo_files = SSHOperator(
task_id="07_merge_fpm2_geo_files.sh",
ssh_conn_id='ssh',
command='source ~/.bash_profile; cd urgent_response/{{var.json.FPM2_variables.dir_name}}; 07_merge_fpm2_geo_files.sh ""',
cmd_timeout=None,
conn_timeout=None
)
send_slack = SlackWebhookOperator(
task_id='send_slack_notifications',
slack_webhook_conn_id = 'slack_webhook_fpm2',
message=':blob_excited:On your MacBook, run the following scripts to download FPM2 products:blob_excited:\n```\nscp -r aws-hpc:/home/centos/urgent_response/{{var.json.FPM2_variables.dir_name}}/stack.tar .\n```\n \n',
channel='#fpm2-sarfinder-aws-hpc',
username='airflow'
)
prepare_directory >> get_dem >> update_download_config >> download >> symlink >> dpm2_response_setup >> auto_control_run1 >> auto_control_run2 >> auto_control_run2x5 >> auto_control_run3 >> auto_control_run4 >> auto_control_run5 >> auto_control_run6 >> auto_control_run7 >> post_run6_geocode_series >> merge_fpm2_geo_files >> send_slack