overleaf/services/document-updater/config/settings.defaults.js

const Path = require('path');
const http = require('http');
http.globalAgent.maxSockets = 300;

module.exports = {
	internal: {
		documentupdater: {
			host: process.env["LISTEN_ADDRESS"] || "localhost",
			port: 3003
		}
	},

	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"
		},
		trackchanges: {
			url: `http://${process.env["TRACK_CHANGES_HOST"] || "localhost"}:3015`
		},
		project_history: {
			enabled: true,
			url: `http://${process.env["PROJECT_HISTORY_HOST"] || "localhost"}:3054`
		}
	},

	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['REDIS_MAX_RETRIES_PER_REQUEST'] || "20")
		},

		history: {
			port: process.env["HISTORY_REDIS_PORT"] || process.env["REDIS_PORT"] || "6379",
			host: process.env["HISTORY_REDIS_HOST"] || process.env["REDIS_HOST"] || "localhost",
			password: process.env["HISTORY_REDIS_PASSWORD"] || process.env["REDIS_PASSWORD"] || "",
			maxRetriesPerRequest: parseInt(process.env['REDIS_MAX_RETRIES_PER_REQUEST'] || "20"),
			key_schema: {
				uncompressedHistoryOps({doc_id}) { return `UncompressedHistoryOps:{${doc_id}}`; },
				docsWithHistoryOps({project_id}) { return `DocsWithHistoryOps:{${project_id}}`; }
			}
		},

		project_history: {
			port: process.env["NEW_HISTORY_REDIS_PORT"] || process.env["REDIS_PORT"] || "6379",
			host: process.env["NEW_HISTORY_REDIS_HOST"] || process.env["REDIS_HOST"] || "localhost",
			password: process.env["NEW_HISTORY_REDIS_PASSWORD"] || process.env["REDIS_PASSWORD"] || "",
			maxRetriesPerRequest: parseInt(process.env['REDIS_MAX_RETRIES_PER_REQUEST'] || "20"),
			key_schema: {
				projectHistoryOps({project_id}) { return `ProjectHistory:Ops:{${project_id}}`; },
				projectHistoryFirstOpTimestamp({project_id}) { return `ProjectHistory:FirstOpTimestamp:{${project_id}}`; }
			}
		},

		lock: {
			port: process.env["LOCK_REDIS_PORT"] || process.env["REDIS_PORT"] || "6379",
			host: process.env["LOCK_REDIS_HOST"] || process.env["REDIS_HOST"] || "localhost",
			password: process.env["LOCK_REDIS_PASSWORD"] || process.env["REDIS_PASSWORD"] || "",
			maxRetriesPerRequest: parseInt(process.env['REDIS_MAX_RETRIES_PER_REQUEST'] || "20"),
			key_schema: {
				blockingKey({doc_id}) { return `Blocking:{${doc_id}}`; }
			}
		},

		documentupdater: {
			port: process.env["DOC_UPDATER_REDIS_PORT"] || process.env["REDIS_PORT"] || "6379",
			host: process.env["DOC_UPDATER_REDIS_HOST"] || process.env["REDIS_HOST"] || "localhost",
			password: process.env["DOC_UPDATER_REDIS_PASSWORD"] || process.env["REDIS_PASSWORD"] || "",
			maxRetriesPerRequest: parseInt(process.env['REDIS_MAX_RETRIES_PER_REQUEST'] || "20"),
			key_schema: {
				blockingKey({doc_id}) { return `Blocking:{${doc_id}}`; },
				docLines({doc_id}) { return `doclines:{${doc_id}}`; },
				docOps({doc_id}) { return `DocOps:{${doc_id}}`; },
				docVersion({doc_id}) { return `DocVersion:{${doc_id}}`; },
				docHash({doc_id}) { return `DocHash:{${doc_id}}`; },
				projectKey({doc_id}) { return `ProjectId:{${doc_id}}`; },
				docsInProject({project_id}) { return `DocsIn:{${project_id}}`; },
				ranges({doc_id}) { return `Ranges:{${doc_id}}`; },
				unflushedTime({doc_id}) { return `UnflushedTime:{${doc_id}}`; },
				pathname({doc_id}) { return `Pathname:{${doc_id}}`; },
				projectHistoryId({doc_id}) { return `ProjectHistoryId:{${doc_id}}`; },
				projectHistoryType({doc_id}) { return `ProjectHistoryType:{${doc_id}}`; },
				projectState({project_id}) { return `ProjectState:{${project_id}}`; },
				pendingUpdates({doc_id}) { return `PendingUpdates:{${doc_id}}`; },
				lastUpdatedBy({doc_id}) { return `lastUpdatedBy:{${doc_id}}`; },
				lastUpdatedAt({doc_id}) { return `lastUpdatedAt:{${doc_id}}`; },
				pendingUpdates({doc_id}) { return `PendingUpdates:{${doc_id}}`; },
				flushAndDeleteQueue() { return "DocUpdaterFlushAndDeleteQueue"; }
			}
		}
	},

	max_doc_length: 2 * 1024 * 1024, // 2mb

	dispatcherCount: process.env["DISPATCHER_COUNT"],

	mongo: {
		url : process.env['MONGO_CONNECTION_STRING'] || `mongodb://${process.env['MONGO_HOST'] || '127.0.0.1'}/sharelatex`
	},

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

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

	continuousBackgroundFlush: process.env['CONTINUOUS_BACKGROUND_FLUSH'] || false,

	smoothingOffset: process.env['SMOOTHING_OFFSET'] || 1000, // milliseconds

	disableDoubleFlush: process.env['DISABLE_DOUBLE_FLUSH'] || false // don't flush track-changes for projects using project-history
};