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1.12.0-rc2

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@shin- shin- released this 27 Mar 19:08
1.12.0-rc2
08dc2a4

If you're a Mac or Windows user, the best way to install Compose and keep it up-to-date is Docker for Mac and Windows.

Docker for Mac and Windows will automatically install the latest version of Docker Engine for you.

Alternatively, you can use the usual commands to install or upgrade Compose:

curl -L https://github.com/docker/compose/releases/download/1.12.0-rc2/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose
chmod +x /usr/local/bin/docker-compose

See the install docs for more install options and instructions.

Compose file format compatibility matrix

Compose file format Docker Engine
3.0 – 3.2 1.13.0+
2.1 1.12.0+
2.0 1.10.0+
1.0 1.9.1+

Changes

New features

Compose file version 3.2

  • Introduced version 3.2 of the docker-compose.yml specification.

  • Added support for cache_from in the build section of services

  • Added support for the new expanded ports syntax in service definitions

  • Added support for the new expanded volumes syntax in service definitions

Compose file version 2.1

  • Added support for pids_limit in service definitions

Compose file version 2.0 and up

  • Added --volumes option to docker-compose config that lists named
    volumes declared for that project

  • Added support for mem_reservation in service definitions (2.x only)

  • Added support for dns_opt in service definitions (2.x only)

All formats

  • Added a new docker-compose images command that lists images used by
    the current project's containers

  • Added a --stop (shorthand -s) option to docker-compose rm that stops
    the running containers before removing them

  • Added a --resolve-image-digests option to docker-compose config that
    pins the image version for each service to a permanent digest

  • Added a --exit-code-from SERVICE option to docker-compose up. When
    used, docker-compose will exit on any container's exit with the code
    corresponding to the specified service's exit code

  • Added a --parallel option to docker-compose pull that enables images
    for multiple services to be pulled simultaneously

  • Added a --build-arg option to docker-compose build

  • Added a --volume <volume_mapping> (shorthand -v) option to
    docker-compose run to declare runtime volumes to be mounted

  • Added a --project-directory PATH option to docker-compose that will
    affect path resolution for the project

  • When using --abort-on-container-exit in docker-compose up, the exit
    code for the container that caused the abort will be the exit code of
    the docker-compose up command

  • Users can now configure which path separator character they want to use
    to separate the COMPOSE_FILE environment value using the
    COMPOSE_PATH_SEPARATOR environment variable

  • Added support for port range to single port in port mappings
    (e.g. 8000-8010:80)

Bugfixes

  • docker-compose run --rm now removes anonymous volumes after execution,
    matching the behavior of docker run --rm.

  • Fixed a bug where override files containing port lists would cause a
    TypeError to be raised

  • Fixed a bug where scaling services up or down would sometimes re-use
    obsolete containers

  • Fixed a bug where the output of docker-compose config would be invalid
    if the project declared anonymous volumes

  • Variable interpolation now properly occurs in the secrets section of
    the Compose file

  • The secrets section now properly appears in the output of
    docker-compose config

  • Fixed a bug where changes to some networks properties would not be
    detected against previously created networks

  • Fixed a bug where docker-compose would crash when trying to write into
    a closed pipe

  • Fixed an issue where Compose would not pick up on the value of
    COMPOSE_TLS_VERSION when used in combination with command-line TLS flags

Thanks to @edsrzf, @albers, @kinghuang, @dnephin, @xulike666, @jyapayne, @tcc-jenkins, @JesusTinoco, @jcberthon, @vehsamrak, @rawkode, @pts-kevinqiu, @nkovacs, @nbarbey, @milin, @melkor217, @marcosnils, @lindt, @Knetic, @kevinetc123, @hholst80, @fate-grand-order, @eddwardo, @dguo, @dbonev, @dattran-vn01, @bheesham and @allandequeiroz for contributing to this release!

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