MariaDB

A single-node MariaDB container, mirroring MySQL's builder shape. MariaDB speaks the MySQL wire protocol, so connectionString uses the same mysql:// scheme and any MySQL client works against it unmodified.

Default image: mariadb:latestExposed port: 3306Wait strategy: an anchored log-message regex, following MySQL's precedent

Member	Returns
MariaDBContainer.start(image?)	Promise<MariaDBContainer> — boots the container
.withUsername(name)	this — overrides MARIADB_USER (default test)
.withPassword(pw)	this — overrides MARIADB_PASSWORD (default test)
.withDatabase(name)	this — overrides MARIADB_DATABASE (default test)
.username / .password / .databaseName	The configured values
.connectionString	A mysql://user:pass@host:port/db connection string (MariaDB speaks the MySQL wire protocol)

Example

import { MariaDBContainer } from "rightsize/modules";
import mysql from "mysql2/promise";

await using mariadb = await MariaDBContainer.start();
const conn = await mysql.createConnection(mariadb.connectionString);
await conn.query("CREATE TABLE t (x INT)");
await conn.query("INSERT INTO t VALUES (1)");
console.log((await conn.query("SELECT * FROM t"))[0]);
await conn.end();

Backend notes

• No-arg construction floats to mariadb:latest. Verified against mariadb:11.4, including the readiness regex and captured log excerpt.
• Compatibility check: the constructor only accepts images whose repository is mariadb (registry host, tag, and digest stripped). A different repository throws IncompatibleImageError before any backend call; override with DockerImageName.parse(image).asCompatibleSubstituteFor("mariadb") for a verified compatible fork or mirror.
• Like MySQL, MariaDB's entrypoint boots the server twice (a throwaway "temp server" for init scripts, then for real), and this module's wait regex is anchored on the real server's line shape for the same reason MySQL's is — see the MySQL module page for the full explanation. No memory-limit override is needed; MariaDB's default footprint fits microsandbox's default microVM RAM comfortably.