Is there a way to loop through a list of resources e.g. ec2 instances per id, in order to create another resource like an Cloudwatch alert/alarm?

Yes! If you already know the instance IDs, you can just use a for loop to do this. If you need to look up the instances (or other resources), there are

getX

functions that can help with this - e.g. https://www.pulumi.com/docs/reference/pkg/aws/ec2/getinstances/.

@gentle-diamond-70147 - thanks! where is documentation on how to implement the loop in? Can you send that

You would do something like this, assuming you're using Python:

test_instances = ["i-xyz", "i-abc"]

for instance_id in test_instances:
    instance_alarm = aws.cloudwatch.MetricAlarm(f"alarm-{instance_id}",
        alarm_description=f"Monitor for instance {instance_id}",
        # other inputs
    )

awesome!