Function k8s_e2e_tests::make_test_pod_with_affinity

pub fn make_test_pod_with_affinity<'a>(
    namespace: &'a str,
    name: &'a str,
    command: &'a str,
    labels: impl IntoIterator<Item = (&'a str, &'a str)> + 'a,
    annotations: impl IntoIterator<Item = (&'a str, &'a str)> + 'a,
    affinity_label: Option<(&'a str, &'a str)>,
    affinity_namespace: Option<&'a str>,
) -> Pod

Since the tests only scan the logs from an agent on a single node, we want to make sure that all the test pods are on the same node so the agent picks them all.