[英]How do I invoke Lambda function across all AWS regions?
我有以下 lambda 函數,它使用 AutoOff_uat 標記停止所有 Ec-2 實例。 如果我想在兩個區域 us-east-1 和 us-east-2 上運行這個 lambda。 我需要做哪些修改
import boto3
import logging
#setup simple logging for INFO
logger = logging.getLogger()
logger.setLevel(logging.INFO)
#define the connection
ec2 = boto3.resource('ec2')
def lambda_handler(event, context):
# Use the filter() method of the instances collection to retrieve
# all running EC2 instances.
filters = [{
'Name': 'tag:AutoOff_uat',
'Values': ['True']
},
{
'Name': 'instance-state-name',
'Values': ['running']
}
]
#filter the instances
instances = ec2.instances.filter(Filters=filters)
#locate all running instances
RunningInstances = [instance.id for instance in instances]
#print the instances for logging purposes
#print RunningInstances
#make sure there are actually instances to shut down.
if len(RunningInstances) > 0:
#perform the shutdown
shuttingDown = ec2.instances.filter(InstanceIds=RunningInstances).stop()
print shuttingDown
else:
print "Nothing to see here"
可以在創建時將區域傳遞給資源
ec2 = boto3.resource('ec2', region_name='us-east-2')
我建議將所有代碼包裝在一個函數中,該函數將區域作為參數,然后遍歷要操作的區域列表。
import boto3
import logging
#setup simple logging for INFO
logger = logging.getLogger()
logger.setLevel(logging.INFO)
def shutdown_instances(region):
#define the connection
ec2 = boto3.resource('ec2', region=region)
# Use the filter() method of the instances collection to retrieve
# all running EC2 instances.
filters = [{
'Name': 'tag:AutoOff_uat',
'Values': ['True']
},
{
'Name': 'instance-state-name',
'Values': ['running']
}
]
#filter the instances
instances = ec2.instances.filter(Filters=filters)
#locate all running instances
RunningInstances = [instance.id for instance in instances]
#print the instances for logging purposes
#print RunningInstances
#make sure there are actually instances to shut down.
def lambda_handler(event, context):
for region in ['us-east-1', 'us-east-2']:
shutdown_instances(region)
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