-
Notifications
You must be signed in to change notification settings - Fork 62
/
bikeshare_stations_dag.py
101 lines (93 loc) · 4.89 KB
/
bikeshare_stations_dag.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
# Copyright 2021 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from airflow import DAG
from airflow.contrib.operators import gcs_to_bq, kubernetes_pod_operator
default_args = {
"owner": "Google",
"depends_on_past": False,
"start_date": "2021-03-01",
}
with DAG(
dag_id="austin_bikeshare.bikeshare_stations",
default_args=default_args,
max_active_runs=1,
schedule_interval="@daily",
catchup=False,
default_view="graph",
) as dag:
# Run CSV transform within kubernetes pod
austin_bikeshare_stations_transform_csv = kubernetes_pod_operator.KubernetesPodOperator(
task_id="austin_bikeshare_stations_transform_csv",
name="bikeshare_stations",
namespace="default",
affinity={
"nodeAffinity": {
"requiredDuringSchedulingIgnoredDuringExecution": {
"nodeSelectorTerms": [
{
"matchExpressions": [
{
"key": "cloud.google.com/gke-nodepool",
"operator": "In",
"values": ["pool-e2-standard-4"],
}
]
}
]
}
}
},
image_pull_policy="Always",
image="{{ var.json.austin_bikeshare.container_registry.run_csv_transform_kub }}",
env_vars={
"SOURCE_URL": "https://data.austintexas.gov/api/views/qd73-bsdg/rows.csv",
"SOURCE_FILE": "files/data.csv",
"TARGET_FILE": "files/data_output.csv",
"TARGET_GCS_BUCKET": "{{ var.value.composer_bucket }}",
"TARGET_GCS_PATH": "data/austin_bikeshare/bikeshare_stations/data_output.csv",
"PIPELINE_NAME": "bikeshare_stations",
"CSV_HEADERS": '["station_id","name","status","address","alternate_name","city_asset_number","property_type","number_of_docks","power_type","footprint_length","footprint_width","notes","council_district","modified_date"]',
"RENAME_MAPPINGS": '{"Kiosk ID": "station_id","Kiosk Name": "name","Kiosk Status": "status","Address": "address","Alternate Name": "alternate_name","City Asset Number": "city_asset_number","Property Type": "property_type","Number of Docks": "number_of_docks","Power Type": "power_type","Footprint Length": "footprint_length","Footprint Width": "footprint_width","Notes": "notes","Council District": "council_district","Modified Date": "modified_date"}',
},
resources={"request_memory": "4G", "request_cpu": "1"},
)
# Task to load CSV data to a BigQuery table
load_austin_bikeshare_stations_to_bq = (
gcs_to_bq.GoogleCloudStorageToBigQueryOperator(
task_id="load_austin_bikeshare_stations_to_bq",
bucket="{{ var.value.composer_bucket }}",
source_objects=["data/austin_bikeshare/bikeshare_stations/data_output.csv"],
source_format="CSV",
destination_project_dataset_table="austin_bikeshare.bikeshare_stations",
skip_leading_rows=1,
write_disposition="WRITE_TRUNCATE",
schema_fields=[
{"name": "station_id", "type": "INTEGER", "mode": "NULLABLE"},
{"name": "name", "type": "STRING", "mode": "NULLABLE"},
{"name": "status", "type": "STRING", "mode": "NULLABLE"},
{"name": "address", "type": "STRING", "mode": "NULLABLE"},
{"name": "alternate_name", "type": "STRING", "mode": "NULLABLE"},
{"name": "city_asset_number", "type": "INTEGER", "mode": "NULLABLE"},
{"name": "property_type", "type": "STRING", "mode": "NULLABLE"},
{"name": "number_of_docks", "type": "INTEGER", "mode": "NULLABLE"},
{"name": "power_type", "type": "STRING", "mode": "NULLABLE"},
{"name": "footprint_length", "type": "INTEGER", "mode": "NULLABLE"},
{"name": "footprint_width", "type": "FLOAT", "mode": "NULLABLE"},
{"name": "notes", "type": "STRING", "mode": "NULLABLE"},
{"name": "council_district", "type": "INTEGER", "mode": "NULLABLE"},
{"name": "modified_date", "type": "TIMESTAMP", "mode": "NULLABLE"},
],
)
)
austin_bikeshare_stations_transform_csv >> load_austin_bikeshare_stations_to_bq