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compose.md

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nerdctl compose

Usage

The nerdctl compose CLI is designed to be compatible with docker-compose.

$ nerdctl compose up -d
$ nerdctl compose down

See the Command Reference in ../README.md.

Spec conformance

nerdctl compose implements The Compose Specification, which was derived from Docker Compose file version 3 specification.

Unimplemented YAML fields

  • Fields that correspond to unimplemented docker run flags, e.g., services.<SERVICE>.links (corresponds to docker run --link)
  • Fields that correspond to unimplemented docker build flags, e.g., services.<SERVICE>.build.labels (corresponds to docker build --label)
  • services.<SERVICE>.credential_spec
  • services.<SERVICE>.deploy.update_config
  • services.<SERVICE>.deploy.rollback_config
  • services.<SERVICE>.deploy.resources.reservations
  • services.<SERVICE>.deploy.placement
  • services.<SERVICE>.deploy.endpoint_mode
  • services.<SERVICE>.healthcheck
  • services.<SERVICE>.profiles
  • services.<SERVICE>.stop_grace_period
  • services.<SERVICE>.stop_signal
  • configs.<CONFIG>.external
  • secrets.<SECRET>.external

Incompatibility

services.<SERVICE>.build.context

  • The value must be a local directory path, not a URL.

services.<SERVICE>.entrypoint

  • Multiple entrypoint strings cannot be specified.

services.<SERVICE>.secrets, services.<SERVICE>.configs

  • uid, gid: Cannot be specified. The default value is not propagated from USER instruction of Dockerfile. The file owner corresponds to the original file on the host.
  • mode: Cannot be specified. The file is mounted as read-only, with permission bits that correspond to the original file on the host.