Redis

A single-node Redis container, ready-checked on Redis's own Ready to accept connections log line rather than a listening-port probe: on a loaded host the port forwarder can accept and hold a connection in the window between Redis binding its socket and actually serving, which a bare port check cannot see through.

Default image: redis:latestExposed port: 6379

Member	Returns
RedisContainer.start(image?)	Promise<RedisContainer> — boots the container
.uri	A redis://host:port connection URI

Example

import { RedisContainer } from "rightsize/modules";
import { createClient } from "redis";

await using redis = await RedisContainer.start();
const client = createClient({ url: redis.uri });
await client.connect();
await client.set("k", "v");
console.log(await client.get("k")); // "v"
await client.quit();

Backend notes

• No-arg construction floats to redis:latest. Verified against redis:8.6-alpine — latest is Debian-based rather than Alpine, larger to pull but functionally equivalent.
• Compatibility check: the constructor only accepts images whose repository is redis (registry host, tag, and digest stripped). A different repository throws IncompatibleImageError before any backend call; override with DockerImageName.parse(image).asCompatibleSubstituteFor("redis") for a verified compatible fork or mirror.
• Redis boots and serves cleanly on both backends with no special handling required beyond the above.