File

src/helpers/kubearchive_integration.py, line 31

Description

The public function setup_kubearchive_client() has no docstring. This is the entry point for initializing the KubeArchive client and manages a global singleton instance (ka_client). Without documentation, callers cannot easily understand:

• What the parameters endpoint_discovery and k8s_core_api are expected to provide
• That the function returns an Optional[KubeArchiveClient] (returning None when endpoint discovery fails)
• That results are cached in a module-level global (ka_client), so subsequent calls skip initialization
• Under what conditions the function may return None

Suggested Remediation

Add a docstring to setup_kubearchive_client() covering:

1. Summary -- one-line description of what the function does (initializes and caches the KubeArchive client singleton).
2. Args -- document endpoint_discovery (used to auto-discover the KubeArchive API endpoint) and k8s_core_api (Kubernetes CoreV1 API client for namespace listing / auth).
3. Returns -- Optional[KubeArchiveClient]: the initialized client, or None if endpoint discovery fails.
4. Caching behavior -- note that the client is stored in the module-level ka_client global and only initialized once; subsequent calls return the cached instance.

Example:

async def setup_kubearchive_client(
    endpoint_discovery: 'KubeArchiveEndpointDiscovery',
    k8s_core_api: client.CoreV1Api
) -> Optional['KubeArchiveClient']:
    """Initialize and cache the KubeArchive client singleton.

    Discovers the KubeArchive API endpoint and creates a client instance.
    The client is cached in a module-level global so subsequent calls
    return the same instance without re-discovery.

    Args:
        endpoint_discovery: Discovery helper used to locate the KubeArchive
            API endpoint in the cluster.
        k8s_core_api: Kubernetes CoreV1 API client, passed through to the
            KubeArchiveClient for namespace and resource queries.

    Returns:
        The initialized KubeArchiveClient, or None if endpoint discovery
        fails (e.g., KubeArchive is not deployed in the cluster).
    """