overleaf/services/real-time/config/settings.defaults.js

const settings = {
	redis: {

		pubsub: {
			host: process.env['PUBSUB_REDIS_HOST'] || process.env['REDIS_HOST'] || "localhost",
			port: process.env['PUBSUB_REDIS_PORT'] || process.env['REDIS_PORT'] || "6379",
			password: process.env["PUBSUB_REDIS_PASSWORD"] || process.env["REDIS_PASSWORD"] || "",
			maxRetriesPerRequest: parseInt(process.env["PUBSUB_REDIS_MAX_RETRIES_PER_REQUEST"] || process.env["REDIS_MAX_RETRIES_PER_REQUEST"] || "20")
		},

		realtime: {
			host: process.env['REAL_TIME_REDIS_HOST'] || process.env['REDIS_HOST'] || "localhost",
			port: process.env['REAL_TIME_REDIS_PORT'] || process.env['REDIS_PORT'] || "6379",
			password: process.env["REAL_TIME_REDIS_PASSWORD"] || process.env["REDIS_PASSWORD"] || "",
			key_schema: {
				clientsInProject({project_id}) { return `clients_in_project:{${project_id}}`; },
				connectedUser({project_id, client_id}){ return `connected_user:{${project_id}}:${client_id}`; }
			},
			maxRetriesPerRequest: parseInt(process.env["REAL_TIME_REDIS_MAX_RETRIES_PER_REQUEST"] || process.env["REDIS_MAX_RETRIES_PER_REQUEST"] || "20")
		},

		documentupdater: {
			host: process.env['DOC_UPDATER_REDIS_HOST'] || process.env['REDIS_HOST'] || "localhost",
			port: process.env['DOC_UPDATER_REDIS_PORT'] || process.env['REDIS_PORT'] || "6379",
			password: process.env["DOC_UPDATER_REDIS_PASSWORD"] || process.env["REDIS_PASSWORD"] || "",
			key_schema: {
				pendingUpdates({doc_id}) { return `PendingUpdates:{${doc_id}}`; }
			},
			maxRetriesPerRequest: parseInt(process.env["DOC_UPDATER_REDIS_MAX_RETRIES_PER_REQUEST"] || process.env["REDIS_MAX_RETRIES_PER_REQUEST"] || "20")
		},

		websessions: { 			
			host: process.env['WEB_REDIS_HOST'] || process.env['REDIS_HOST'] || "localhost",
			port: process.env['WEB_REDIS_PORT'] || process.env['REDIS_PORT'] || "6379",
			password: process.env["WEB_REDIS_PASSWORD"] || process.env["REDIS_PASSWORD"] || "",
			maxRetriesPerRequest: parseInt(process.env["WEB_REDIS_MAX_RETRIES_PER_REQUEST"] || process.env["REDIS_MAX_RETRIES_PER_REQUEST"] || "20")
		}
	},

	internal: {
		realTime: {
			port: 3026,
			host: process.env['LISTEN_ADDRESS'] || "localhost",
			user: "sharelatex",
			pass: "password"
		}
	},
			
	apis: {
		web: {
			url: `http://${process.env['WEB_API_HOST'] || process.env['WEB_HOST'] || "localhost"}:${process.env['WEB_API_PORT'] || process.env['WEB_PORT'] || 3000}`,
			user: process.env['WEB_API_USER'] || "sharelatex",
			pass: process.env['WEB_API_PASSWORD'] || "password"
		},
		documentupdater: {
			url: `http://${process.env['DOCUMENT_UPDATER_HOST'] || process.env['DOCUPDATER_HOST'] || "localhost"}:3003`
		}
	},
			
	security: {
		sessionSecret: process.env['SESSION_SECRET'] || "secret-please-change"
	},
		
	cookieName: process.env['COOKIE_NAME'] || "sharelatex.sid",
	
	max_doc_length: 2 * 1024 * 1024, // 2mb

	// combine
	// max_doc_length (2mb see above) * 2 (delete + insert)
	// max_ranges_size (3mb see MAX_RANGES_SIZE in document-updater)
	// overhead for JSON serialization
	maxUpdateSize: parseInt(process.env['MAX_UPDATE_SIZE']) || ((7 * 1024 * 1024) + (64 * 1024)),

	shutdownDrainTimeWindow: process.env['SHUTDOWN_DRAIN_TIME_WINDOW'] || 9,

	continualPubsubTraffic: process.env['CONTINUAL_PUBSUB_TRAFFIC'] || false,

	checkEventOrder: process.env['CHECK_EVENT_ORDER'] || false,
	
	publishOnIndividualChannels: process.env['PUBLISH_ON_INDIVIDUAL_CHANNELS'] || false,

	statusCheckInterval: parseInt(process.env['STATUS_CHECK_INTERVAL'] || '0'),

	sentry: {
		dsn: process.env.SENTRY_DSN
	},

	errors: {
		catchUncaughtErrors: true,
		shutdownOnUncaughtError: true
	}
};
	
// console.log settings.redis
module.exports = settings;