Files
pulse/server/index.js
T
2025-04-24 10:12:30 +01:00

969 lines
41 KiB
JavaScript

// require('dotenv').config(); // Load environment variables from .env file
// --- BEGIN Environment Variable Validation ---
const primaryRequiredEnvVars = [
'PROXMOX_HOST',
'PROXMOX_TOKEN_ID',
'PROXMOX_TOKEN_SECRET'
];
const placeholderValues = [
'your-proxmox-ip-or-hostname',
'your-api-token-id@pam!your-token-name',
'your-api-token-secret-uuid',
'your-password' // Added just in case password fallback is used without token
];
let missingVars = [];
let placeholderVars = [];
// Check primary vars
primaryRequiredEnvVars.forEach(varName => {
const value = process.env[varName];
if (!value) {
missingVars.push(varName);
} else if (placeholderValues.some(placeholder => value.includes(placeholder))) {
placeholderVars.push(varName);
}
});
if (missingVars.length > 0 || placeholderVars.length > 0) {
console.error('\n--- Configuration Error (Primary Endpoint) ---');
if (missingVars.length > 0) {
console.error(`Missing required environment variables: ${missingVars.join(', ')}. These are typically set via docker-compose.yml or a .env file.`);
}
if (placeholderVars.length > 0) {
console.error(`The following primary environment variables seem to contain placeholder values: ${placeholderVars.join(', ')}.`);
}
console.error('Please ensure valid Proxmox connection details are provided via environment variables.');
console.error('Refer to server/.env.example for the required variable names and format.\n');
process.exit(1); // Exit if primary configuration is invalid
}
// --- Load All Proxmox Endpoint Configurations ---
const endpoints = [];
// Load primary endpoint (index 0)
endpoints.push({
id: 'primary', // Identifier for this endpoint
name: process.env.PROXMOX_NODE_NAME || process.env.PROXMOX_HOST, // Use host if name not set
host: process.env.PROXMOX_HOST,
port: process.env.PROXMOX_PORT || '8006',
tokenId: process.env.PROXMOX_TOKEN_ID,
tokenSecret: process.env.PROXMOX_TOKEN_SECRET,
enabled: process.env.PROXMOX_ENABLED !== 'false', // Currently unused, but kept for potential future use
allowSelfSignedCerts: process.env.PROXMOX_ALLOW_SELF_SIGNED_CERTS !== 'false',
credentials: { // Keep password fallback possibility
username: process.env.PROXMOX_USERNAME,
password: process.env.PROXMOX_PASSWORD,
realm: process.env.PROXMOX_REALM || 'pam'
}
});
// Load additional endpoints (PROXMOX_HOST_2, _3, ...)
let i = 2;
while (process.env[`PROXMOX_HOST_${i}`]) {
const host = process.env[`PROXMOX_HOST_${i}`];
const tokenId = process.env[`PROXMOX_TOKEN_ID_${i}`];
const tokenSecret = process.env[`PROXMOX_TOKEN_SECRET_${i}`];
// Minimal validation for additional endpoints
if (!tokenId || !tokenSecret) {
console.warn(`WARN: Skipping endpoint ${i} (Host: ${host}). Missing PROXMOX_TOKEN_ID_${i} or PROXMOX_TOKEN_SECRET_${i}.`);
i++;
continue;
}
if (placeholderValues.some(p => host.includes(p) || tokenId.includes(p) || tokenSecret.includes(p))) {
console.warn(`WARN: Skipping endpoint ${i} (Host: ${host}). Environment variables seem to contain placeholder values.`);
i++;
continue;
}
endpoints.push({
id: `endpoint_${i}`, // Unique ID for this endpoint
name: process.env[`PROXMOX_NODE_NAME_${i}`] || host, // Use host if name not set
host: host,
port: process.env[`PROXMOX_PORT_${i}`] || '8006',
tokenId: tokenId,
tokenSecret: tokenSecret,
enabled: process.env[`PROXMOX_ENABLED_${i}`] !== 'false',
allowSelfSignedCerts: process.env[`PROXMOX_ALLOW_SELF_SIGNED_CERTS_${i}`] !== 'false',
credentials: { // Allow fallback for additional endpoints too
username: process.env[`PROXMOX_USERNAME_${i}`],
password: process.env[`PROXMOX_PASSWORD_${i}`],
realm: process.env[`PROXMOX_REALM_${i}`] || 'pam'
}
});
i++;
}
if (endpoints.length > 1) {
console.log(`INFO: Loaded configuration for ${endpoints.length} Proxmox endpoints.`);
}
// --- END Configuration Loading ---
const fs = require('fs'); // Add fs module
const express = require('express');
const http = require('http');
const path = require('path');
const cors = require('cors');
const { Server } = require('socket.io');
const axios = require('axios');
const https = require('https');
const axiosRetry = require('axios-retry').default; // Import axios-retry
// Development specific dependencies
let chokidar;
if (process.env.NODE_ENV === 'development') {
try {
chokidar = require('chokidar');
} catch (e) {
console.warn('chokidar is not installed. Hot reload requires chokidar: npm install --save-dev chokidar');
}
}
// --- Create API Clients for Each Endpoint ---
const apiClients = {}; // Use an object to store clients, keyed by endpoint.id
endpoints.forEach(endpoint => {
if (!endpoint.enabled) {
console.log(`INFO: Skipping disabled endpoint: ${endpoint.name} (${endpoint.host})`);
return; // Skip disabled endpoints
}
const baseURL = endpoint.host.includes('://')
? `${endpoint.host}/api2/json`
: `https://${endpoint.host}:${endpoint.port}/api2/json`;
const apiClient = axios.create({
baseURL: baseURL,
httpsAgent: new https.Agent({
rejectUnauthorized: !endpoint.allowSelfSignedCerts
}),
headers: {
'Content-Type': 'application/json'
}
});
// Add request interceptor for authentication (specific to this endpoint)
apiClient.interceptors.request.use(config => {
// Add API token authentication
if (endpoint.tokenId && endpoint.tokenSecret) {
config.headers.Authorization = `PVEAPIToken=${endpoint.tokenId}=${endpoint.tokenSecret}`;
}
// Fallback to password auth if configured FOR THIS ENDPOINT
else if (endpoint.credentials && endpoint.credentials.username && endpoint.credentials.password) {
const { username, password, realm } = endpoint.credentials;
config.headers.Authorization = `Basic ${Buffer.from(`${username}@${realm}:${password}`).toString('base64')}`;
if (!realm) console.warn(`WARN: Using password auth for endpoint ${endpoint.name} without a realm specified. Defaulting to 'pam'.`);
} else {
// Should not happen due to validation, but log just in case
console.error(`ERROR: Endpoint ${endpoint.name} has neither token nor full username/password credentials configured.`);
}
return config;
});
// Apply retry logic to the axios instance
axiosRetry(apiClient, {
retries: 3, // Number of retries
retryDelay: (retryCount, error) => {
console.warn(`Retrying API request for ${endpoint.name} (attempt ${retryCount}) due to error: ${error.message}`);
return axiosRetry.exponentialDelay(retryCount); // Exponential backoff
},
retryCondition: (error) => {
// Retry on network errors or specific status codes
return (
axiosRetry.isNetworkError(error) ||
axiosRetry.isRetryableError(error) || // Includes 5xx errors by default
error.response?.status === 596 // Specifically retry on 596
);
},
});
apiClients[endpoint.id] = { client: apiClient, config: endpoint }; // Store both client and config
console.log(`INFO: Initialized API client for endpoint: ${endpoint.name} (${endpoint.host})`);
});
if (Object.keys(apiClients).length === 0) {
console.error("\n--- Configuration Error ---");
console.error("No enabled Proxmox endpoints could be configured. Please check your .env file and environment variables.");
process.exit(1);
}
// --- End API Client Creation ---
// Server configuration
const DEBUG_METRICS = false; // Set to true to show detailed metrics logs
const PORT = 7655; // Using a different port from the main server
// --- Define Update Intervals ---
// How often to fetch dynamic metrics (CPU, Mem, IO) for running guests
const METRIC_UPDATE_INTERVAL = 2000; // Default: 2 seconds
// How often to fetch structural data (node list, guest lists, node status)
const DISCOVERY_UPDATE_INTERVAL = 30000; // Default: 30 seconds
// Create Express app
const app = express();
// Middleware
app.use(cors());
app.use(express.json());
app.use(express.static(path.join(__dirname, '../public')));
// Allow iframe embedding
app.use((req, res, next) => {
res.removeHeader('X-Frame-Options'); // Remove default Express header if present
res.setHeader('Content-Security-Policy', "frame-ancestors *"); // Allow embedding from any origin
next();
});
// --- Add API endpoint for version ---
let appVersion = 'unknown';
try {
const packageJsonPath = path.join(__dirname, '../package.json');
const packageJsonContent = fs.readFileSync(packageJsonPath, 'utf8');
const packageJson = JSON.parse(packageJsonContent);
appVersion = packageJson.version || 'unknown';
} catch (error) {
console.error('Error reading version from package.json:', error.message);
}
app.get('/api/version', (req, res) => {
res.json({ version: appVersion });
});
// --- End API endpoint ---
// --- Add API endpoint for Storage ---
app.get('/api/storage', async (req, res) => {
// Refactored to query all configured endpoints
const aggregatedStorageData = {};
let hasDataFromAnyEndpoint = false;
const endpointIds = Object.keys(apiClients);
if (endpointIds.length === 0) {
console.warn('/api/storage: No API clients configured.');
return res.json({}); // Return empty if no clients
}
// Process each endpoint concurrently
const endpointPromises = endpointIds.map(async (endpointId) => {
const { client: apiClient, config: endpointConfig } = apiClients[endpointId];
const endpointName = endpointConfig.name || endpointId; // For logging
const endpointStorageData = {}; // Storage data specifically for this endpoint
let nodesToQuery = [];
let discoveryFailed = false;
// --- Step 1: Discover nodes for this endpoint ---
try {
const nodesResponse = await apiClient.get('/nodes');
const basicNodeInfo = nodesResponse.data.data || [];
nodesToQuery = basicNodeInfo.map(n => n.node).filter(Boolean);
if (nodesToQuery.length === 0) {
console.warn(`/api/storage (${endpointName}): /nodes returned 0 nodes. Attempting single node discovery.`);
try {
const versionResponse = await apiClient.get('/version');
const discoveredNodeName = versionResponse.data.data.node;
if (discoveredNodeName) {
nodesToQuery = [discoveredNodeName];
} else {
throw new Error("Could not determine node name from /version.");
}
} catch (discoveryError) {
console.error(`/api/storage (${endpointName}): Single node discovery failed: ${discoveryError.message}`);
discoveryFailed = true;
}
}
} catch (error) {
console.warn(`/api/storage (${endpointName}): Failed to fetch /nodes (${error.message}). Attempting single node discovery.`);
try {
const versionResponse = await apiClient.get('/version');
const discoveredNodeName = versionResponse.data.data.node;
if (discoveredNodeName) {
nodesToQuery = [discoveredNodeName];
console.log(`/api/storage (${endpointName}): Discovered single node via /version: ${discoveredNodeName}`);
} else {
throw new Error("Could not determine node name from /version.");
}
} catch (discoveryError) {
console.error(`/api/storage (${endpointName}): Single node discovery failed after /nodes error: ${discoveryError.message}`);
discoveryFailed = true;
}
}
// If discovery failed for this endpoint, log and skip to the next endpoint
if (discoveryFailed) {
console.error(`/api/storage (${endpointName}): Failed to discover any nodes. Skipping storage fetch for this endpoint.`);
return null; // Indicate failure for this endpoint
}
// --- Step 2: Fetch storage for discovered nodes in this endpoint ---
const storagePromises = nodesToQuery.map(async (nodeName) => {
if (!nodeName) {
console.warn(`/api/storage (${endpointName}): Skipping node with missing name.`);
return; // Skip if node name is somehow invalid
}
try {
const response = await apiClient.get(`/nodes/${nodeName}/storage`);
// Add the fetched storage data under the nodeName key
// Note: If node names collide across endpoints, the last one processed will overwrite previous ones.
endpointStorageData[nodeName] = response.data.data || [];
} catch (err) {
console.error(`/api/storage (${endpointName}): Error fetching storage for node ${nodeName}: ${err.message}`);
// Store an error object instead of data for this node
endpointStorageData[nodeName] = {
error: `Failed to fetch storage: ${err.message}`,
endpointId: endpointId,
endpointName: endpointName
};
}
});
await Promise.allSettled(storagePromises);
// If we got any data (even errors) for nodes in this endpoint, return it
if (Object.keys(endpointStorageData).length > 0) {
// console.log(`/api/storage (${endpointName}): Fetched storage data for ${Object.keys(endpointStorageData).length} nodes.`);
return endpointStorageData;
} else if (nodesToQuery.length > 0) {
console.warn(`/api/storage (${endpointName}): Discovered ${nodesToQuery.length} nodes but failed to fetch storage for any of them.`);
return null; // Indicate failure if discovery worked but storage fetch failed completely
} else {
// Should only happen if discovery found 0 nodes initially
console.log(`/api/storage (${endpointName}): No nodes discovered, no storage data fetched.`);
return null;
}
}); // End map over endpointIds
// Process results from all endpoints
const allEndpointResults = await Promise.allSettled(endpointPromises);
allEndpointResults.forEach(endpointOutcome => {
if (endpointOutcome.status === 'fulfilled' && endpointOutcome.value) {
// Merge the storage data from this endpoint into the aggregated result
Object.assign(aggregatedStorageData, endpointOutcome.value);
hasDataFromAnyEndpoint = true; // Mark that we got some data
} else if (endpointOutcome.status === 'rejected') {
// Log errors from processing an endpoint promise itself (less likely)
console.error(`/api/storage: Error processing endpoint storage fetch promise: ${endpointOutcome.reason}`);
}
// We already logged errors for endpoints where value is null inside the map
});
if (hasDataFromAnyEndpoint) {
if (DEBUG_METRICS) {
console.log(`/api/storage: Returning aggregated storage data for ${Object.keys(aggregatedStorageData).length} nodes across all endpoints.`);
}
} else {
console.warn(`/api/storage: Failed to fetch any storage data from any configured endpoint.`);
}
res.json(aggregatedStorageData); // Return the aggregated data (or empty object if all failed)
});
// --- End Storage API endpoint ---
// Create HTTP server
const server = http.createServer(app);
// Create Socket.IO server with CORS configuration
const io = new Server(server, {
cors: {
origin: "*",
methods: ["GET", "POST"]
}
});
// --- Global State Variables ---
// These will hold the latest fetched data
let currentNodes = [];
let currentVms = [];
let currentContainers = [];
let currentMetrics = [];
let isDiscoveryRunning = false; // Prevent concurrent discovery runs
let isMetricsRunning = false; // Prevent concurrent metric runs
let discoveryTimeoutId = null;
let metricTimeoutId = null;
// --- End Global State ---
// Helper function to fetch data for a single node WITHIN a specific endpoint
// Added apiClient and endpointId parameters
async function fetchDataForNode(apiClient, endpointId, nodeName) {
const nodeData = {
vms: [],
containers: [],
metrics: []
};
try {
// Fetch VMs
const vmsResponse = await apiClient.get(`/nodes/${nodeName}/qemu`);
if (vmsResponse.data.data && Array.isArray(vmsResponse.data.data)) {
// Add endpointId, node, and type to each VM
nodeData.vms = vmsResponse.data.data.map(vm => ({
...vm,
node: nodeName,
endpointId: endpointId,
type: 'qemu' // **** ADD TYPE ****
}));
// Collect metrics for running VMs in parallel
const vmMetricPromises = nodeData.vms
.filter(vm => vm.status === 'running')
.map(async (vm) => {
try {
const [rrdData, currentData] = await Promise.all([
apiClient.get(`/nodes/${nodeName}/qemu/${vm.vmid}/rrddata`, { params: { timeframe: 'hour', cf: 'AVERAGE' } }),
apiClient.get(`/nodes/${nodeName}/qemu/${vm.vmid}/status/current`)
]);
let metricData = {
id: vm.vmid,
guestName: vm.name,
node: nodeName,
type: 'qemu',
endpointId: endpointId,
data: [],
current: currentData?.data?.data || null
};
if (rrdData?.data?.data?.length > 0) metricData.data = rrdData.data.data;
return metricData; // Return successful metric data
} catch (err) {
// Add status code to error log
const status = err.response?.status ? ` (Status: ${err.response.status})` : '';
console.error(`[Metrics] Failed to get metrics for VM ${vm.vmid} on node ${nodeName} (Endpoint: ${endpointId})${status}: ${err.message}`);
return null; // Return null on error for this specific VM
}
});
const vmMetricsResults = await Promise.allSettled(vmMetricPromises);
vmMetricsResults.forEach(result => {
if (result.status === 'fulfilled' && result.value) {
nodeData.metrics.push(result.value);
}
// Optionally log rejected promises if needed:
// else if (result.status === 'rejected') { console.error(...) }
});
}
} catch (err) {
// Add status code to error log
const status = err.response?.status ? ` (Status: ${err.response.status})` : '';
console.error(`[Discovery] Error fetching VMs from node ${nodeName} (Endpoint: ${endpointId})${status}: ${err.message}`);
// Continue to fetch containers even if VMs fail
}
try {
// Fetch containers
const ctsResponse = await apiClient.get(`/nodes/${nodeName}/lxc`);
if (ctsResponse.data.data && Array.isArray(ctsResponse.data.data)) {
// Add endpointId, node, and type to each container
nodeData.containers = ctsResponse.data.data.map(ct => ({
...ct,
node: nodeName,
endpointId: endpointId,
type: 'lxc' // **** ADD TYPE ****
}));
// Collect metrics for running containers in parallel
const ctMetricPromises = nodeData.containers
.filter(ct => ct.status === 'running')
.map(async (ct) => {
try {
const [rrdData, currentData] = await Promise.all([
apiClient.get(`/nodes/${nodeName}/lxc/${ct.vmid}/rrddata`, { params: { timeframe: 'hour', cf: 'AVERAGE' } }),
apiClient.get(`/nodes/${nodeName}/lxc/${ct.vmid}/status/current`)
]);
let metricData = {
id: ct.vmid,
guestName: ct.name,
node: nodeName,
type: 'lxc',
endpointId: endpointId,
data: [],
current: currentData?.data?.data || null
};
if (rrdData?.data?.data?.length > 0) metricData.data = rrdData.data.data;
return metricData; // Return successful metric data
} catch (err) {
// Add status code to error log
const status = err.response?.status ? ` (Status: ${err.response.status})` : '';
console.error(`[Metrics] Failed to get metrics for container ${ct.vmid} on node ${nodeName} (Endpoint: ${endpointId})${status}: ${err.message}`);
return null; // Return null on error for this specific container
}
});
const ctMetricsResults = await Promise.allSettled(ctMetricPromises);
ctMetricsResults.forEach(result => {
if (result.status === 'fulfilled' && result.value) {
nodeData.metrics.push(result.value);
}
// Optionally log rejected promises if needed
});
}
} catch (err) {
// Add status code to error log
const status = err.response?.status ? ` (Status: ${err.response.status})` : '';
console.error(`[Discovery] Error fetching containers from node ${nodeName} (Endpoint: ${endpointId})${status}: ${err.message}`);
}
// Return collected data (VMs, Containers) for this node from this endpoint
// Metrics are handled separately in fetchMetricsData
return {
vms: nodeData.vms,
containers: nodeData.containers
};
}
// --- Refactored Data Fetching Logic ---
/**
* Fetches structural data: node list, node statuses, VM list, Container list
* across ALL configured endpoints.
*/
async function fetchDiscoveryData() {
console.log('[Discovery Cycle] Starting fetch across all endpoints...');
const aggregatedResult = {
nodes: [],
vms: [],
containers: []
};
// Get a list of endpoint IDs to iterate over
const endpointIds = Object.keys(apiClients);
if (endpointIds.length === 0) {
console.warn("[Discovery Cycle] No API clients configured. Skipping fetch.");
return aggregatedResult; // Return empty if no clients
}
// Use Promise.allSettled to fetch from all endpoints concurrently
const discoveryPromises = endpointIds.map(async (endpointId) => {
const { client: apiClient, config: endpointConfig } = apiClients[endpointId];
const endpointName = endpointConfig.name || endpointId; // For logging
const endpointResult = { nodes: [], vms: [], containers: [] }; // Results for this specific endpoint
let nodesToQuery = [];
let basicNodeInfo = []; // Basic info from /nodes for this endpoint
console.log(`[Discovery Cycle] Fetching discovery data for endpoint: ${endpointName}`);
// --- Step 1: Fetch Node List and Basic Info for this endpoint ---
try {
const nodesResponse = await apiClient.get('/nodes');
basicNodeInfo = nodesResponse.data.data || [];
nodesToQuery = basicNodeInfo.map(n => n.node).filter(Boolean);
if (nodesToQuery.length === 0) {
console.warn(`[Discovery Cycle - ${endpointName}] /nodes returned 0 nodes. Attempting single node discovery.`);
try {
const versionResponse = await apiClient.get('/version');
const discoveredNodeName = versionResponse.data.data.node;
if (discoveredNodeName) {
nodesToQuery = [discoveredNodeName];
// Synthesize basic info for the single node
basicNodeInfo = [{ node: discoveredNodeName, ip: 'unknown', status: 'unknown' }];
} else {
throw new Error("Could not determine node name from /version.");
}
} catch (discoveryError) {
// Add status code to error log
const status = discoveryError.response?.status ? ` (Status: ${discoveryError.response.status})` : '';
console.error(`[Discovery Cycle - ${endpointName}] Single node discovery failed${status}: ${discoveryError.message}. Cannot proceed for this endpoint.`);
return { status: 'rejected', value: null, endpointId: endpointId, reason: discoveryError }; // Indicate failure for this endpoint
}
}
} catch (error) {
// Add status code to error log
const status = error.response?.status ? ` (Status: ${error.response.status})` : '';
console.warn(`[Discovery Cycle - ${endpointName}] Failed to fetch /nodes${status} (${error.message}). Attempting single node discovery.`);
try {
const versionResponse = await apiClient.get('/version');
const discoveredNodeName = versionResponse.data.data.node;
if (discoveredNodeName) {
nodesToQuery = [discoveredNodeName];
basicNodeInfo = [{ node: discoveredNodeName, ip: 'unknown', status: 'unknown' }];
} else {
throw new Error("Could not determine node name from /version.");
}
} catch (discoveryError) {
// Add status code to error log
const status = discoveryError.response?.status ? ` (Status: ${discoveryError.response.status})` : '';
console.error(`[Discovery Cycle - ${endpointName}] Single node discovery failed after /nodes error${status}: ${discoveryError.message}. Cannot proceed for this endpoint.`);
return { status: 'rejected', value: null, endpointId: endpointId, reason: discoveryError }; // Indicate failure for this endpoint
}
}
// --- Step 2: Fetch Detailed Status for Each Node in this endpoint ---
const nodeStatusPromises = nodesToQuery.map(async (nodeName) => {
if (!nodeName) return null;
try {
const statusResponse = await apiClient.get(`/nodes/${nodeName}/status`);
let statusData = statusResponse.data.data;
const basicInfo = basicNodeInfo.find(n => n.node === nodeName);
// Ensure statusData is an object and add necessary fields
if (typeof statusData !== 'object' || statusData === null) {
statusData = {}; // Initialize if not an object
}
if (!statusData.node) { statusData.node = nodeName; }
statusData.ip = basicInfo?.ip || 'fetch_error'; // Add IP from basic info
statusData.endpointId = endpointId; // **** ADD ENDPOINT ID ****
statusData.endpointName = endpointName; // Add human-readable name too
return statusData;
} catch (statusError) {
// Add status code to error log
const status = statusError.response?.status ? ` (Status: ${statusError.response.status})` : '';
console.warn(`[Discovery Cycle - ${endpointName}] Could not fetch status for node ${nodeName}${status}: ${statusError.message}`);
const basicInfo = basicNodeInfo.find(n => n.node === nodeName);
// Return a synthesized offline status object
return {
node: nodeName,
status: 'offline', // Explicitly mark as offline on error
ip: basicInfo?.ip || 'fetch_error',
cpu: 0, // Provide default numeric values
memory: { total: 0, used: 0 },
rootfs: { total: 0, used: 0 },
swap: { total: 0, used: 0 },
uptime: 0,
endpointId: endpointId, // **** ADD ENDPOINT ID ****
endpointName: endpointName
};
}
});
const detailedNodeResults = await Promise.allSettled(nodeStatusPromises);
endpointResult.nodes = detailedNodeResults
.filter(result => result.status === 'fulfilled' && result.value)
.map(result => result.value);
// Fallback if all status calls failed for this endpoint but /nodes worked
if (endpointResult.nodes.length === 0 && basicNodeInfo.length > 0) {
console.warn(`[Discovery Cycle - ${endpointName}] All node status fetches failed. Falling back to basic node info from /nodes.`);
endpointResult.nodes = basicNodeInfo.map(node => ({
...node,
ip: node.ip || 'unknown',
status: 'unknown', // Mark status as unknown
cpu: 0, memory: { total: 0, used: 0 }, rootfs: { total: 0, used: 0 },
swap: { total: 0, used: 0 }, uptime: 0,
endpointId: endpointId, // **** ADD ENDPOINT ID ****
endpointName: endpointName
}));
}
// --- Step 3: Fetch VM/Container Lists for Each Node in this endpoint ---
// Only query nodes we successfully got status for (or synthesized)
const finalNodeNames = endpointResult.nodes.map(n => n.node).filter(Boolean);
const guestListPromises = finalNodeNames.map(async (nodeName) => {
try {
// Use the modified fetchDataForNode which now requires apiClient and endpointId
// It returns { vms: [], containers: [] } with endpointId already added
// Pass the endpointId explicitly here
const nodeGuestData = await fetchDataForNode(apiClient, endpointId, nodeName);
// The endpointId and type are added within fetchDataForNode now
// return { vms: nodeGuestData.vms, containers: nodeGuestData.containers };
// Simplified return, type/endpointId added in fetchDataForNode
return nodeGuestData;
} catch (guestError) {
// Add status code to error log
const status = guestError.response?.status ? ` (Status: ${guestError.response.status})` : '';
console.error(`[Discovery Cycle - ${endpointName}] Error fetching guest data for node ${nodeName}${status}: ${guestError.message}`);
return { vms: [], containers: [] }; // Return empty on error for this node
}
});
const guestListResults = await Promise.allSettled(guestListPromises);
guestListResults.forEach(result => {
if (result.status === 'fulfilled' && result.value) {
endpointResult.vms.push(...result.value.vms);
endpointResult.containers.push(...result.value.containers);
}
});
console.log(`[Discovery Cycle - ${endpointName}] Completed. Found: ${endpointResult.nodes.length} nodes, ${endpointResult.vms.length} VMs, ${endpointResult.containers.length} containers.`);
return { status: 'fulfilled', value: endpointResult, endpointId: endpointId }; // Return structured result
}); // End map over endpointIds
// Process results from all endpoints
const allEndpointResults = await Promise.allSettled(discoveryPromises);
allEndpointResults.forEach(endpointOutcome => {
if (endpointOutcome.status === 'fulfilled' && endpointOutcome.value.status === 'fulfilled') {
const endpointData = endpointOutcome.value.value;
aggregatedResult.nodes.push(...endpointData.nodes);
aggregatedResult.vms.push(...endpointData.vms);
aggregatedResult.containers.push(...endpointData.containers);
} else if (endpointOutcome.status === 'rejected') {
// Log errors from the outer Promise.allSettled (e.g., client setup issues or inner rejects)
const reason = endpointOutcome.reason || endpointOutcome.value?.reason || 'Unknown reason';
const failedEndpointId = endpointOutcome.value?.endpointId || 'Unknown endpoint';
console.error(`[Discovery Cycle] Failed to process endpoint discovery promise for ${failedEndpointId}: ${reason}`);
} else if (endpointOutcome.value.status !== 'fulfilled'){
// Log errors from the inner endpoint processing (already logged, but maybe add summary)
console.error(`[Discovery Cycle] Failed discovery for endpoint: ${endpointOutcome.value.endpointId}`);
}
});
if (DEBUG_METRICS) {
console.log(`[Discovery Cycle] Aggregated results. Total: ${aggregatedResult.nodes.length} nodes, ${aggregatedResult.vms.length} VMs, ${aggregatedResult.containers.length} containers across ${endpointIds.length} configured endpoints.`);
}
return aggregatedResult;
}
/**
* Fetches dynamic metric data ONLY for currently known running VMs and Containers
* across ALL configured endpoints.
*/
async function fetchMetricsData(runningVms, runningContainers) {
console.log(`[Metrics Cycle] Starting metrics fetch for ${runningVms.length} VMs, ${runningContainers.length} Containers...`);
const allMetrics = [];
const metricPromises = [];
// Group running guests by endpointId and then by nodeName
const guestsByEndpointNode = {};
[...runningVms, ...runningContainers].forEach(guest => {
if (!guest.endpointId || !guest.node || !guest.vmid || !guest.type) {
console.warn(`[Metrics Cycle] Skipping guest with missing info:`, guest);
return;
}
const { endpointId, node, vmid, type, name } = guest; // Include name for logging
if (!guestsByEndpointNode[endpointId]) {
guestsByEndpointNode[endpointId] = {};
}
if (!guestsByEndpointNode[endpointId][node]) {
guestsByEndpointNode[endpointId][node] = [];
}
// Store minimal info needed for fetch, ensuring name exists
guestsByEndpointNode[endpointId][node].push({ vmid, type, name: name || 'unknown' });
});
// Iterate through endpoints that have running guests
for (const endpointId in guestsByEndpointNode) {
if (!apiClients[endpointId]) {
console.warn(`[Metrics Cycle] API client for endpoint ${endpointId} not found. Skipping metrics fetch for its guests.`);
continue;
}
const { client: apiClient, config: endpointConfig } = apiClients[endpointId];
const endpointName = endpointConfig.name || endpointId;
// Iterate through nodes within this endpoint that have running guests
for (const nodeName in guestsByEndpointNode[endpointId]) {
const guestsOnNode = guestsByEndpointNode[endpointId][nodeName];
// Create promises for fetching metrics for guests on this specific node
guestsOnNode.forEach(guestInfo => {
const { vmid, type, name: guestName } = guestInfo;
metricPromises.push(
(async () => {
try {
const pathPrefix = type === 'qemu' ? 'qemu' : 'lxc';
const [rrdData, currentData] = await Promise.all([
apiClient.get(`/nodes/${nodeName}/${pathPrefix}/${vmid}/rrddata`, { params: { timeframe: 'hour', cf: 'AVERAGE' } }),
apiClient.get(`/nodes/${nodeName}/${pathPrefix}/${vmid}/status/current`)
]);
const metricData = {
id: vmid,
guestName: guestName, // Keep guest name
node: nodeName,
type: type,
endpointId: endpointId, // Add endpointId
endpointName: endpointName, // Add readable name
data: rrdData?.data?.data?.length > 0 ? rrdData.data.data : [],
current: currentData?.data?.data || null
};
return metricData;
} catch (err) {
// Log error but don't crash the whole cycle
// Add status code to error log
const status = err.response?.status ? ` (Status: ${err.response.status})` : '';
// Check if error is due to guest being stopped (400 Bad Request often indicates this for status/current)
if (err.response && err.response.status === 400) {
console.warn(`[Metrics Cycle - ${endpointName}] Guest ${type} ${vmid} (${guestName}) on node ${nodeName} might be stopped or inaccessible (Status: 400). Skipping metrics.`);
} else {
console.error(`[Metrics Cycle - ${endpointName}] Failed to get metrics for ${type} ${vmid} (${guestName}) on node ${nodeName}${status}: ${err.message}`);
}
return null; // Return null on error for this specific guest
}
})() // Immediately invoke the async function
);
}); // End foreach guest on node
} // End foreach node in endpoint
} // End foreach endpoint
// Wait for all metric fetch promises to settle
const metricResults = await Promise.allSettled(metricPromises);
metricResults.forEach(result => {
if (result.status === 'fulfilled' && result.value) {
allMetrics.push(result.value);
}
// Optional: Log rejected promises if needed (errors are already logged individually)
// else if (result.status === 'rejected') { console.error(...) }
});
if (DEBUG_METRICS) {
console.log(`[Metrics Cycle] Completed. Fetched metrics for ${allMetrics.length} running guests.`);
}
return allMetrics;
}
// --- Socket.io connection handling (Initial data fetch needs update) ---
io.on('connection', (socket) => {
console.log(`[socket] Client connected. Total clients: ${io.engine.clientsCount}`);
// Send initial data immediately if available
if (currentNodes.length > 0 || currentVms.length > 0 || currentContainers.length > 0) {
console.log('[socket] Sending existing data to new client.');
socket.emit('rawData', {
nodes: currentNodes,
vms: currentVms,
containers: currentContainers,
metrics: currentMetrics
});
} else {
// If no data yet, trigger a discovery cycle (if not already running)
console.log('[socket] No data yet, triggering initial discovery for new client...');
if (!isDiscoveryRunning) {
runDiscoveryCycle();
}
}
// Handle disconnect
socket.on('disconnect', () => {
setTimeout(() => {
console.log(`[socket] Client disconnected. Total clients: ${io.engine.clientsCount}`);
// Optional: Stop polling if client count drops to 0? (Handled in run cycles)
}, 100);
});
});
// --- New Update Cycle Logic ---
// Discovery Cycle Runner
async function runDiscoveryCycle() {
if (isDiscoveryRunning) {
// console.log('[Discovery Cycle] Already running, skipping.');
return;
}
isDiscoveryRunning = true;
try {
const discoveryData = await fetchDiscoveryData();
// Update global state
currentNodes = discoveryData.nodes;
currentVms = discoveryData.vms;
currentContainers = discoveryData.containers;
// Emit combined data only if clients are connected
if (io.engine.clientsCount > 0) {
if (DEBUG_METRICS) {
console.log('[Discovery Cycle] Emitting updated structural data.');
}
io.emit('rawData', {
nodes: currentNodes,
vms: currentVms,
containers: currentContainers,
metrics: currentMetrics // Send latest (potentially empty) metrics
});
}
} catch (error) {
console.error(`[Discovery Cycle] Error during execution: ${error.message}`, error.stack);
} finally {
isDiscoveryRunning = false;
// Schedule the next discovery cycle
scheduleNextDiscovery();
}
}
// Metric Cycle Runner
async function runMetricCycle() {
if (isMetricsRunning) {
// console.log('[Metrics Cycle] Already running, skipping.');
return;
}
// Only run if clients are connected
if (io.engine.clientsCount === 0) {
// console.log('[Metrics Cycle] No clients connected, skipping fetch.');
scheduleNextMetric(); // Still schedule next check
return;
}
isMetricsRunning = true;
try {
// Filter for running guests based on the MOST RECENT state from discovery
const runningVms = currentVms.filter(vm => vm.status === 'running');
const runningContainers = currentContainers.filter(ct => ct.status === 'running');
if (runningVms.length > 0 || runningContainers.length > 0) {
// Fetch metrics using the dedicated function
const fetchedMetrics = await fetchMetricsData(runningVms, runningContainers);
currentMetrics = fetchedMetrics; // Update global metrics state
// Emit combined data
// console.log('[Metrics Cycle] Emitting updated metrics data.'); // Reduced verbosity
io.emit('rawData', {
nodes: currentNodes, // Send current nodes/vms/cts state
vms: currentVms,
containers: currentContainers,
metrics: currentMetrics // Send the newly fetched metrics
});
} else {
// console.log('[Metrics Cycle] No running guests found, skipping metric fetch.');
currentMetrics = []; // Clear metrics if no guests running
// Emit state update even if metrics were cleared
io.emit('rawData', {
nodes: currentNodes, vms: currentVms,
containers: currentContainers, metrics: currentMetrics
});
}
} catch (error) {
console.error(`[Metrics Cycle] Error during execution: ${error.message}`, error.stack);
} finally {
isMetricsRunning = false;
// Schedule the next metric cycle
scheduleNextMetric();
}
}
// Schedulers using setTimeout
function scheduleNextDiscovery() {
if (discoveryTimeoutId) clearTimeout(discoveryTimeoutId);
discoveryTimeoutId = setTimeout(runDiscoveryCycle, DISCOVERY_UPDATE_INTERVAL);
}
function scheduleNextMetric() {
if (metricTimeoutId) clearTimeout(metricTimeoutId);
metricTimeoutId = setTimeout(runMetricCycle, METRIC_UPDATE_INTERVAL);
}
// Start the initial cycles
console.log('Starting initial data fetch cycles...');
runDiscoveryCycle(); // Run discovery first
// Metrics will be triggered after discovery or by its own timer if clients connect later
scheduleNextMetric(); // Start scheduling metrics right away
// --- End New Update Cycle Logic ---
// Start the server
server.listen(PORT, () => {
console.log(`Server listening on port ${PORT}`);
// Setup hot reload in development mode
if (process.env.NODE_ENV === 'development' && chokidar) {
const publicPath = path.join(__dirname, '../public');
console.log(`Watching for changes in ${publicPath}`);
const watcher = chokidar.watch(publicPath, {
ignored: /(^|[\\\/])\./, // ignore dotfiles
persistent: true,
ignoreInitial: true // Don't trigger on initial scan
});
watcher.on('change', (filePath) => {
// console.log(`File changed: ${filePath}. Triggering hot reload.`);
io.emit('hotReload'); // Notify clients to reload
});
watcher.on('error', error => console.error(`Watcher error: ${error}`));
}
});