GitLab CI/CD

This example uses GitLab CI/CD to build the Earthly target +build.

# .gitlab-ci.yml

services:
  - docker:dind

variables:
  DOCKER_HOST: tcp://docker:2375
  FORCE_COLOR: 1
  EARTHLY_EXEC_CMD: "/bin/sh"

image: earthly/earthly:v0.8.6

before_script:
    - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY

earthly:
  stage: build
  script:
    - earthly --ci --push -P +build

Note that in this particular configuration, the earthly/earthly image will first start BuildKit under the same container via the image's entrypoint script; however by setting EARTHLY_EXEC_CMD=/bin/sh, the /usr/bin/earthly-entrypoint.sh script will present a shell rather than call the earthly binary. This bootstrapping occurs before the before_script portion of the gitlab job executes.

In order to configure a registry mirror, users will need to configure a multi-line string for EARTHLY_ADDITIONAL_BUILDKIT_CONFIG under the variables section. For example:

variables:
  EARTHLY_ADDITIONAL_BUILDKIT_CONFIG: |-
    [registry."docker.io"]
      mirrors = ["registry-mirror.example.com"]

A full example is available on GitLab.

For a complete guide on CI integration see the CI integration guide.

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