How do you enable BuildKit with docker-compose?
Support for BuildKit was just released in docker-compose 1.25.0. To enable:
export DOCKER_BUILDKIT=1 # or configure in daemon.json
export COMPOSE_DOCKER_CLI_BUILD=1
With those variables set in your shell, you can now run docker-compose build
using BuildKit.
In windows you can execute in your console:
setx DOCKER_BUILDKIT 1 # or configure in daemon.json
setx COMPOSE_DOCKER_CLI_BUILD 1
after will need restart your console
You can use this command to tell docker-compose to use the Docker CLI when executing a build.
COMPOSE_DOCKER_CLI_BUILD=1 docker-compose build
You should see the same build as usual, but with this warning:
WARNING: Native build is an experimental feature and could change at any time
And you can go like that to parametrize the CLI to use BuildKit instead of the default builder:
COMPOSE_DOCKER_CLI_BUILD=1 DOCKER_BUILDKIT=1 docker-compose build
Windows version:
set "COMPOSE_DOCKER_CLI_BUILD=1" & set "DOCKER_BUILDKIT=1" & docker-compose build
You can also enable BuildKit globally, editing /etc/docker/daemon.json
file, adding:
{ "features": { "buildkit": true } }
For more informations: https://docs.docker.com/develop/develop-images/build_enhancements/