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# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
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#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
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# mypy ignore arg types (for templated fields)
# type: ignore[arg-type]
from datetime import datetime
from airflow.models.dag import DAG
from airflow.providers.amazon.aws.hooks.eks import ClusterStates, NodegroupStates
from airflow.providers.amazon.aws.operators.eks import (
EksCreateClusterOperator,
EksCreateNodegroupOperator,
EksDeleteClusterOperator,
EksDeleteNodegroupOperator,
EksPodOperator,
)
from airflow.providers.amazon.aws.sensors.eks import EksClusterStateSensor, EksNodegroupStateSensor
# Example Jinja Template format, substitute your values:
"""
{
"cluster_name": "templated-cluster",
"cluster_role_arn": "arn:aws:iam::123456789012:role/role_name",
"resources_vpc_config": {
"subnetIds": ["subnet-12345ab", "subnet-67890cd"],
"endpointPublicAccess": true,
"endpointPrivateAccess": false
},
"nodegroup_name": "templated-nodegroup",
"nodegroup_subnets": "['subnet-12345ab', 'subnet-67890cd']",
"nodegroup_role_arn": "arn:aws:iam::123456789012:role/role_name"
}
"""
with DAG(
dag_id='example_eks_templated',
schedule_interval=None,
start_date=datetime(2021, 1, 1),
tags=['example', 'templated'],
catchup=False,
# render_template_as_native_obj=True is what converts the Jinja to Python objects, instead of a string.
render_template_as_native_obj=True,
) as dag:
[docs] CLUSTER_NAME = "{{ dag_run.conf['cluster_name'] }}"
NODEGROUP_NAME = "{{ dag_run.conf['nodegroup_name'] }}"
# Create an Amazon EKS Cluster control plane without attaching a compute service.
create_cluster = EksCreateClusterOperator(
task_id='create_eks_cluster',
cluster_name=CLUSTER_NAME,
compute=None,
cluster_role_arn="{{ dag_run.conf['cluster_role_arn'] }}",
resources_vpc_config="{{ dag_run.conf['resources_vpc_config'] }}",
)
await_create_cluster = EksClusterStateSensor(
task_id='wait_for_create_cluster',
cluster_name=CLUSTER_NAME,
target_state=ClusterStates.ACTIVE,
)
create_nodegroup = EksCreateNodegroupOperator(
task_id='create_eks_nodegroup',
cluster_name=CLUSTER_NAME,
nodegroup_name=NODEGROUP_NAME,
nodegroup_subnets="{{ dag_run.conf['nodegroup_subnets'] }}",
nodegroup_role_arn="{{ dag_run.conf['nodegroup_role_arn'] }}",
)
await_create_nodegroup = EksNodegroupStateSensor(
task_id='wait_for_create_nodegroup',
cluster_name=CLUSTER_NAME,
nodegroup_name=NODEGROUP_NAME,
target_state=NodegroupStates.ACTIVE,
)
start_pod = EksPodOperator(
task_id="run_pod",
cluster_name=CLUSTER_NAME,
pod_name="run_pod",
image="amazon/aws-cli:latest",
cmds=["sh", "-c", "ls"],
labels={"demo": "hello_world"},
get_logs=True,
# Delete the pod when it reaches its final state, or the execution is interrupted.
is_delete_operator_pod=True,
)
delete_nodegroup = EksDeleteNodegroupOperator(
task_id='delete_eks_nodegroup',
cluster_name=CLUSTER_NAME,
nodegroup_name=NODEGROUP_NAME,
)
await_delete_nodegroup = EksNodegroupStateSensor(
task_id='wait_for_delete_nodegroup',
cluster_name=CLUSTER_NAME,
nodegroup_name=NODEGROUP_NAME,
target_state=NodegroupStates.NONEXISTENT,
)
delete_cluster = EksDeleteClusterOperator(
task_id='delete_eks_cluster',
cluster_name=CLUSTER_NAME,
)
await_delete_cluster = EksClusterStateSensor(
task_id='wait_for_delete_cluster',
cluster_name=CLUSTER_NAME,
target_state=ClusterStates.NONEXISTENT,
)
(
create_cluster
>> await_create_cluster
>> create_nodegroup
>> await_create_nodegroup
>> start_pod
>> delete_nodegroup
>> await_delete_nodegroup
>> delete_cluster
>> await_delete_cluster
)
