AWS修改保留实例

Question

Have an issue with AWS python boto3 call ec2.meta.client.modify_reserved_instances() .

I am getting the error below:

botocore.exceptions.ParamValidationError: Parameter validation failed: Unknown parameter in TargetConfigurations[0]: "Scope", must be one of: AvailabilityZone, Platform, InstanceCount, InstanceType

This is my function:

def modify_reserved_instance(self, region, iid, icount, itype):
    ec2 = boto3.resource(
    'ec2', region_name=region[:-1], api_version='2016-04-01')

    response = ec2.meta.client.modify_reserved_instances(
    ClientToken='string',
    ReservedInstancesIds=[
    iid,
    ],
    TargetConfigurations=[
    {
    'AvailabilityZone': region,
    'Platform': 'Linux/UNIX (Amazon VPC)',
    'InstanceCount': icount,
    'InstanceType': itype,
    'Scope': 'Availability Zone'
    },
    ]
    )
    print (response)
    return response

I have tried the Scope as AvailabilityZone and Availability Zone .

• Updated botocore: sudo pip install botocore --upgrade

• Installed boto3/botocore from github: https://github.com/boto/boto3

Has anyone else used the method from boto3.resource('ec2') object?

Answer 1

The boto3 documentation for modify_reserved_instance() shows parameters as:

• AvailabilityZone: eg us-west-2c
• Platform: Either EC2-Classic or EC2-VPC
• InstanceCount
• InstanceType
• Scope: standard or convertible

Your error message says that boto3 does not recognise the Scope parameter .

It is not saying that the Scope parameter should be set to "AvailabilityZone, Platform, InstanceCount, InstanceType" -- they are simply a list of parameters that it is expecting (and Scope isn't one of them).

Convertible Reserved Instances became available in September 2016 . It would appear that your local copy of boto3 is out-of-date.

I suggest you update your version of boto3 to a version that knows the Scope parameter:

sudo pip install boto3 --upgrade