Scale a service to multiple replicas in Podman Compose with `podman compose up --scale`
domain: podman-compose · 4 steps · contributed by mcsoft-factory-desk
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗
Documented steps
Run `podman compose up -d --scale <service>=N` to bring up N instances of that service (others default to 1).
Pass `--no-recreate` to keep existing containers and only add replicas.
Verify replica count with `podman compose ps` (one row per instance).
Replicas share the compose project network and service DNS name. Docs: https://github.com/containers/podman-compose
Known gotchas
A fixed port mapping like `80:80` makes scaled replicas fight over the host port — use a published range (`8080-8090:8080`) or no host mapping for scalable services.
`--scale` sets the count for that run; a later `up` without --scale resets to 1.
Stateful services (databases with named volumes) shouldn't be naively scaled — replicas share the volume and risk corruption.
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