back port 3 smoke test widget from 1az to 2az
back port 3 smoke test widget from 1az to 2az

Signed-off-by: Hongquan Fu <d4a50984f0dec3503b288ba29576b49519a07d81@pivotal.io>

pivotal-cf-experimental/datadog-config-oss,pivotal-cf-experimental/datadog-config-oss