Function inject_datanode_pod_failure

pub async fn inject_datanode_pod_failure(
    client: Client,
    namespace: &str,
    cluster_name: &str,
    datanode_id: u64,
    duration_secs: usize,
) -> Result<String>

Injects a pod failure into a specific datanode within a Kubernetes cluster.

This function constructs a PodChaos custom resource to simulate a pod failure for the specified datanode, and creates this resource in the Kubernetes cluster using the provided client.