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feat(compose): scale services with replicas - #27
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- Each replica is its own container: <project>-<service>-<n>. Replica 1 keeps the container_name: override. - Replica count comes from docker compose up --scale SERVICE=N (repeatable), else scale:, else 1. Containers above the count are removed on the next up. - Replicas carry the com.docker.compose.container-number label. - ps lists every replica, grouped by service in dependency order. - /etc/hosts entries map each service name to all of its replicas. Not yet replica-aware: stop, start, restart, kill and logs still act on replica 1 only.
This was referenced Oct 21, 2026
Keep both the scale flag tests and the registry and build parsing tests.
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Summary
<project>-<service>-<n>); replica 1 keepscontainer_name:.docker compose up --scale SERVICE=N(repeatable), elsescale:, else 1. Surplus replicas are removed onup.pslists every replica;/etc/hostsmaps each service name to all replica IPs.Limitation
stop,start,restart,killandlogsstill act on replica 1 only. They are the next step.Test plan
swift test: replica naming, scale count,--scaleparsing--scale web=3(needs a running daemon)Base:
feat/compose-multifile-profiles(#26); merge #26 first.