How to get ip address of spot instance created with boto3 - amazon-web-services

Question

I am able to create spot instance with boto3 with the following code
import boto3
import datetime, random, string
client = boto3.client('ec2')
response = client.request_spot_instances(
DryRun=False,
ClientToken=''.join(random.choices(string.ascii_uppercase + string.digits, k=10)),
InstanceCount=1,
Type='one-time',
LaunchSpecification={
'ImageId': 'ami-053ebee0bc662f9b3',
'SecurityGroups': ['default'],
'InstanceType': 't3.medium',
'Placement': {
'AvailabilityZone': 'us-east-1a',
},
'BlockDeviceMappings': [
{
},
],
'EbsOptimized': True,
'Monitoring': {
'Enabled': True
},
'SecurityGroupIds': [
'sg-03432e1f',
]
}
)
print(response)
And the response I got is below. How can I get ip address of all the machines created. I know that the request is asynchronous but if I want to poll for the details of created instances, what is the way?
{
"SpotInstanceRequests": [
{
"CreateTime": "2022-05-22 05:21:54+00:00",
"LaunchSpecification": {
"SecurityGroups": [
{
"GroupName": "default",
"GroupId": "sg-03432e1f"
}
],
"EbsOptimized": true,
"ImageId": "ami-053ebee0bc662f9b3",
"InstanceType": "t3.medium",
"Placement": {
"AvailabilityZone": "us-east-1a"
},
"SubnetId": "subnet-b9f4aadf",
"Monitoring": {
"Enabled": true
}
},
"ProductDescription": "Linux/UNIX",
"SpotInstanceRequestId": "sir-88tef9gh",
"SpotPrice": "0.041600",
"State": "open",
"Status": {
"Code": "pending-evaluation",
"Message": "Your Spot request has been submitted for review, and is pending evaluation.",
"UpdateTime": "2022-05-22 05:21:55+00:00"
},
"Type": "one-time",
"InstanceInterruptionBehavior": "terminate"
}
],
"ResponseMetadata": {
"RequestId": "ac39fdad-cb4d-4e26-82a5-1f55c1f0d5af",
"HTTPStatusCode": 200,
"HTTPHeaders": {
"x-amzn-requestid": "ac39fdad-cb4d-4e26-82a5-1f55c1f0d5af",
"cache-control": "no-cache, no-store",
"strict-transport-security": "max-age=31536000; includeSubDomains",
"content-type": "text/xml;charset=UTF-8",
"content-length": "1696",
"date": "Sun, 22 May 2022 05:21:54 GMT",
"server": "AmazonEC2"
},
"RetryAttempts": 0
}
}

Answer 1

The same as with regular instances. You have to get NetworkInterfaceId of the spot instances which you can get using describe_instances. The outcome of the call gives you InstanceLifecycle equal to spot for spot instances.
Once you have NetworkInterfaceId of your spot instances you can use describe_network_interfaces to get PublicIp associated with the interface.