search-cluster-health-check.js

const clusterUrls = ['http://127.0.0.1:9000', 'https://badserver.fail'];

(async () => {
  const healthCheckPromises = clusterUrls.map((clusterUrl) => checkServerHealth(clusterUrl));
  const results = await Promise.allSettled(healthCheckPromises);
  return results;
})();


/**
 * Initials health check per-cluster
 */
async function checkServerHealth(serverUrl) {
  const nodesHealth = await clusterNodesHealthCheck();
  const clusterMetadata = await fetchClusterMetadata();
  const statusObject = {
    ...clusterMetadata,
    ...nodesHealth,
  }
  return reportToRedis(statusObject);
}

/**
 * Fetches node health for each node on a cluster
 */
async function clusterNodesHealthCheck(clusterUrl) {
  const clusterNodes = await fetchClusterNodes();
  return Promise.allSettled(clusterUrls.map((clusterUrl) => fetchNodeHealth(clusterUrl)));
}

async function fetchClusterNodes() {}
async function fetchNodeHealth() {}
async function fetchClusterMetadata() {}
async function reportToRedis() { /* Upsert results to redis  */ }