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please share your code

import pulumi import pulumi_aws as aws size = 't2.micro' ami = aws.get_ami(most_recent="true", owners=["137112412989"], filters=[{"name":"name","values":["amzn-ami-hvm-*"]}]) group = aws.ec2.SecurityGroup('webserver-secgrp',description='Enable HTTP access',ingress=[{ 'protocol': 'tcp', 'from_port': 22, 'to_port': 22, 'cidr_blocks': ['0.0.0.0/0']}]) server = aws.ec2.Instance('webserver-www', instance_type=size, vpc_security_group_ids=[group.id], # reference security group from above ami=ami.id) pulumi.export('publicIp', server.public_ip) pulumi.export('publicHostName', server.public_dns)

I wonder if this works if you change to_port/from_port to toPort/fromPort?

same error: error: awsec2/securityGroupSecurityGroup resource 'webserver-secgrp' has a problem: Missing required argument: The argument "ingress.0.to_port" is required, but no definition was found.. Examine values at 'SecurityGroup.Ingresses'.

Oh wait, that error says "Ingresses" but your code says "ingress". Maybe the property should be "ingresses".

Hi @creamy-napkin-46533, I run the demo code and it works fine:

View Live: <https://app.pulumi.com/dirien/aws-clasic-python/dev/updates/1>

     Type                      Name                   Status            Info
 +   pulumi:pulumi:Stack       aws-clasic-python-dev  created (41s)     1 warning
 +   ├─ aws:ec2:SecurityGroup  webserver-secgrp       created (2s)      
 +   └─ aws:ec2:Instance       webserver-www          created (32s)     


Diagnostics:
  pulumi:pulumi:Stack (aws-clasic-python-dev):
    warning: get_ami is deprecated: aws.getAmi has been deprecated in favor of aws.ec2.getAmi

Outputs:
    publicHostName: "<http://xxx.eu-central-1.compute.amazonaws.com|xxx.eu-central-1.compute.amazonaws.com>"
    publicIp      : "xxx"

Resources:
    + 3 created

Duration: 42s

it is working now

Cool, glad to hear it worked!