I need to obtain the Tag values from the below code, it initially fetches the Id and then passes this to the describe_cluster, the value is then in the json format. Tryging to fetch a particular value from this "Cluster" json using "GET". However, it returns a error message as "'str' object has no attribute 'get'", Please suggest.
Here is a reference link of boto3 which I'm referring: https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/emr.html#EMR.Client.describe_cluster
import boto3
import json
from datetime import timedelta
REGION = 'us-east-1'
emrclient = boto3.client('emr', region_name=REGION)
snsclient = boto3.client('sns', region_name=REGION)
def lambda_handler(event, context):
EMRS = emrclient.list_clusters(
ClusterStates = ['STARTING', 'RUNNING', 'WAITING']
)
clusters = EMRS["Clusters"]
for cluster_details in clusters :
id = cluster_details.get("Id")
describe_cluster = emrclient.describe_cluster(
ClusterId = id
)
cluster_values = describe_cluster["Cluster"]
for details in cluster_values :
tag_values = details.get("Tags")
print(tag_values)
The error is in the last part of the code.
describe_cluster = emrclient.describe_cluster(
ClusterId = id
)
cluster_values = describe_cluster["Cluster"]
for details in cluster_values: # ERROR HERE
tag_values = details.get("Tags")
print(tag_values)
The returned value from describe_cluster is a dictionary. The Cluster
is also a dictionary. So you don't need to iterate over it. You can directly access cluster_values.get("Tags")