Create tags is failing with the result None

[otufekci]

Using moto 5 to test EBS snaphosts. In the process I need to test tag creation for the snaphosts. However, I am getting error while creation. If I create the tag within moto, tag is created successfully and assert test passes. Can you please help with this error message?

My code side is very simple that runs in Python 3.9.6. It accepts SnapshotId and tags and creates the tags.

region = os.environ.get("AWS_REGION"))
ec2_client = boto3.client("ec2", region_name=region)

def snap_check(snap):
    add_tags = {"Key": "Marker", "Value": "EBS DeleteAfter tag enforcer"}, {"Key": "DeleteAfter","Value": "23456789"}
    snap_tags=[]
    snap_tags.extend(add_tags)
    ec2_client.create_tags(Resources=[snap["SnapshotId"]], Tags=snap_tags)

Error I get:

botocore.exceptions.ClientError: An error occurred (InvalidSnapshot.NotFound) when calling the CreateTags operation: None
If I run the exact same command on the moto code, I get assert success:

with mock_aws() as k:
    with mock.patch.dict(
        os.environ,
        {
            "AWS_REGION": "us-east-1",
            "ACCESS_KEY": str(base64.b64encode(b"fake_key")),
            "SECRET_KEY": str(base64.b64encode(b"fake_secret_key")),
            "MOTO_ACCOUNT_ID": '111111111111',
            "DEFAULT_ACCOUNT_ID": '234567890',
            "ACCOUNT_ID": '12345678987'
        },
    ):
        from test.modules.tag_enforcement_snaphosts.tag_snaphosts_missing_deleteafter_tag import (
            snap_check,
        )

@mock_aws
def test_attached_volume_and_no_tags():
    with freeze_time("2020-02-26 10:42:34"):
        client = boto3.client("ec2", region_name="us-east-1")
        ec2 = boto3.resource("ec2", region_name="us-east-1")
        volume = ec2.create_volume(Size=80, AvailabilityZone="us-east-1a")

        reservation = client.run_instances(ImageId=EXAMPLE_AMI_ID, MinCount=1, MaxCount=1)
        instance = reservation["Instances"][0]
        volume.attach_to_instance(InstanceId=instance["InstanceId"], Device="/dev/sdh")

        snapshot = volume.create_snapshot(
            Description="a test snapshot"
            )
        snapshot.reload()
        
        assert snapshot.state == "completed"

        print ( snapshot.create_tags(Resources=[snapshots[0]["SnapshotId"]], Tags=[{"Key": "DeleteAfter","Value": "12312345463"}]) )

        resp = [ sub["Key"] for sub in snapshots[0]["Tags"] ]
        assert 'DeleteAfter' in resp
        print (resp)

Response:

[ec2.Tag(resource_id='snap-9a435e77', key='DeleteAfter', value='12312345463')]

[otufekci]

I found the issue. Regions were not matching.