AttributeError ec2 ServiceResource object has no attribute send command

Question

Dear all,

I have tried to creating user credentials in windows EC2 instance using boto3 script. But I get an error like below

"AttributeError: 'ec2.ServiceResource' object has no attribute 'send_command"

It's my Boto3 code

#!/usr/bin/env python3

import boto3
import os
import subprocess

ssm_client = boto3.resource('ec2',aws_access_key_id='xxxxxx',aws_secret_access_key='yyyyy', region_name='us-west-2')

session = boto3.Session (profile_name='exampleaws')

response = ssm_client.send_command(
             InstanceIds=[
                "i-xxxxxx" # use instance id on which you want to execute, even multiple is allowd
                     ],
             DocumentName="AWS-RunPowerShellScript",
             Parameters={
                'commands':[
                     'New-LocalUser "Latchu" -Password "ABCD123" -FullName "LakshmiNarayanan" -Description "User-Details'
                       ]
                   },
             )
command_id = response['Command']['CommandId']
output = ssm_client.get_command_invocation(
      CommandId=command_id,
      InstanceId='i-xxxxxx',
    )
print(output)

----

What's the issue?

Answer 1

Hi@Lakshminarayanan,

The send_command attribute is not available in boto3. You can check as shown below.

 import boto3
client = boto3.resource('ec2',aws_access_key_id='xxxxxx',aws_secret_access_key='yyyyy', region_name='us-west-2')
dir(client)
['ClassicAddress', 'DhcpOptions', 'Image', 'Instance', 'InternetGateway', 'KeyPair', 'NetworkAcl', 'NetworkInterface', 'NetworkInterfaceAssociation', 'PlacementGroup', 'Route', 'RouteTable', 'RouteTableAssociation', 'SecurityGroup', 'Snapshot', 'Subnet', 'Tag', 'Volume', 'Vpc', 'VpcAddress', 'VpcPeeringConnection', '__class__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__le__', '__lt__', '__module__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', 'classic_addresses', 'create_dhcp_options', 'create_instances', 'create_internet_gateway', 'create_key_pair', 'create_network_acl', 'create_network_interface', 'create_placement_group', 'create_route_table', 'create_security_group', 'create_snapshot', 'create_subnet', 'create_tags', 'create_volume', 'create_vpc', 'create_vpc_peering_connection', 'dhcp_options_sets', 'disassociate_route_table', 'get_available_subresources', 'images', 'import_key_pair', 'instances', 'internet_gateways', 'key_pairs', 'meta', 'network_acls', 'network_interfaces', 'placement_groups', 'register_image', 'route_tables', 'security_groups', 'snapshots', 'subnets', 'volumes', 'vpc_addresses', 'vpc_peering_connections', 'vpcs']

Comments

Hi,

what should I use instead of

response = ssm_client.send_command(
             InstanceIds=[
                "i-xxxxxx" # use instance id on which you want to execute, even multiple is allowd
                     ],
             DocumentName="AWS-RunPowerShellScript",
             Parameters={
                'commands':[
                     'New-LocalUser "Latchu" -Password "ABCD123" -FullName "LakshmiNarayanan" -Description "User-Details'
                       ]
                   },
             )

---

Hi,

I think you just need to add the below line in your code.

ssm_client = boto3.client('ssm')

This module contains the send_command argument.

#!/usr/bin/env python3
import boto3
import os
import subprocess
client = boto3.resource('ec2',aws_access_key_id='xxxxxx',aws_secret_access_key='yyyyy', region_name='us-west-2')

session = boto3.Session (profile_name='exampleaws')
ssm_client = boto3.client('ssm')
response = ssm_client.send_command(
             InstanceIds=[
                "i-xxxxxx" # use instance id on which you want to execute, even multiple is allowd
                     ],
             DocumentName="AWS-RunPowerShellScript",
             Parameters={
                'commands':[
                     'New-LocalUser "Latchu" -Password "ABCD123" -FullName "LakshmiNarayanan" -Description "User-Details'
                       ]
                   },
             )
command_id = response['Command']['CommandId']
output = ssm_client.get_command_invocation(
      CommandId=command_id,
      InstanceId='i-xxxxxx',
    )
print(output)

---

yes, but its getting error like below

    raise error_class(parsed_response, operation_name)
botocore.errorfactory.InvalidInstanceId: An error occurred (InvalidInstanceId) when calling the SendCommand operation:

Even I mentioned exact instance id.

---

Hi,

Ok. Check your region name properly because EC2 is region-specific. Just cross-check id, region. Your code is totally ok.

---

Everything is properly configured. but still saying "invalid instance id"

---

Ok, do one thing first print all the instance id using boto3. Check what it is showing.

---

Finally created user. Just i have used "net user username "password" /ADD " in powershell script. its created successfully. Many thanks for your support.