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Compose YAML Anchor Reuse

Containers · pro · solved in-browser (no VM needed) · 3 tiered hints

Write /home/player/docker-compose.yml that defines a shared config block with a YAML anchor &common containing restart: unless-stopped, then merges it into two services using the merge key <<: *common. (Authored config, graded structurally — the engine isn't run here.)

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