Postgres Support

- Combines #4086 and #4087 PRs
- Adds authentik in CI stack

backend/lib/config.js

@@ -2,7 +2,10 @@ const fs      = require('fs');
 const NodeRSA = require('node-rsa');
 const logger  = require('../logger').global;
 
-const keysFile = '/data/keys.json';
+const keysFile         = '/data/keys.json';
+const mysqlEngine      = 'mysql2';
+const postgresEngine   = 'pg';
+const sqliteClientName = 'sqlite3';
 
 let instance = null;
 
@@ -14,7 +17,7 @@ const configure = () => {
 		let configData;
 		try {
 			configData = require(filename);
-		} catch (err) {
+		} catch (_) {
 			// do nothing
 		}
 
@@ -34,7 +37,7 @@ const configure = () => {
 		logger.info('Using MySQL configuration');
 		instance = {
 			database: {
-				engine:   'mysql2',
+				engine:   mysqlEngine,
 				host:     envMysqlHost,
 				port:     process.env.DB_MYSQL_PORT || 3306,
 				user:     envMysqlUser,
@@ -46,13 +49,33 @@ const configure = () => {
 		return;
 	}
 
+	const envPostgresHost = process.env.DB_POSTGRES_HOST || null;
+	const envPostgresUser = process.env.DB_POSTGRES_USER || null;
+	const envPostgresName = process.env.DB_POSTGRES_NAME || null;
+	if (envPostgresHost && envPostgresUser && envPostgresName) {
+		// we have enough postgres creds to go with postgres
+		logger.info('Using Postgres configuration');
+		instance = {
+			database: {
+				engine:   postgresEngine,
+				host:     envPostgresHost,
+				port:     process.env.DB_POSTGRES_PORT || 5432,
+				user:     envPostgresUser,
+				password: process.env.DB_POSTGRES_PASSWORD,
+				name:     envPostgresName,
+			},
+			keys: getKeys(),
+		};
+		return;
+	}
+
 	const envSqliteFile = process.env.DB_SQLITE_FILE || '/data/database.sqlite';
 	logger.info(`Using Sqlite: ${envSqliteFile}`);
 	instance = {
 		database: {
 			engine: 'knex-native',
 			knex:   {
-				client:     'sqlite3',
+				client:     sqliteClientName,
 				connection: {
 					filename: envSqliteFile
 				},
@@ -143,7 +166,27 @@ module.exports = {
 	 */
 	isSqlite: function () {
 		instance === null && configure();
-		return instance.database.knex && instance.database.knex.client === 'sqlite3';
+		return instance.database.knex && instance.database.knex.client === sqliteClientName;
+	},
+
+	/**
+	 * Is this a mysql configuration?
+	 *
+	 * @returns {boolean}
+	 */
+	isMysql: function () {
+		instance === null && configure();
+		return instance.database.engine === mysqlEngine;
+	},
+	
+	/**
+		 * Is this a postgres configuration?
+		 *
+		 * @returns {boolean}
+		 */
+	isPostgres: function () {
+		instance === null && configure();
+		return instance.database.engine === postgresEngine;
 	},
 
 	/**

backend/lib/helpers.js

@@ -1,4 +1,6 @@
-const moment = require('moment');
+const moment       = require('moment');
+const {isPostgres} = require('./config');
+const {ref}        = require('objection');
 
 module.exports = {
 
@@ -45,6 +47,16 @@ module.exports = {
 			}
 		});
 		return obj;
+	},
+
+	/**
+	 * Casts a column to json if using postgres
+	 *
+	 * @param {string} colName
+	 * @returns {string|Objection.ReferenceBuilder}
+	 */
+	castJsonIfNeed: function (colName) {
+		return isPostgres() ? ref(colName).castText() : colName;
 	}
 
 };