Commit 17a38b5a authored by Achilleas Pipinellis's avatar Achilleas Pipinellis

Merge branch 'improve-using-docker-build-docs' into 'master'

Improve documentation of how to build Docker Images with GitLab CI

See merge request gitlab-org/gitlab-ce!20254
parents 52e18210 288be086
......@@ -134,9 +134,20 @@ In order to do that, follow the steps:
```yaml
image: docker:stable
variables:
# When using dind service we need to instruct docker, to talk with the
# daemon started inside of the service. The daemon is available with
# a network connection instead of the default /var/run/docker.sock socket.
#
# The 'docker' hostname is the alias of the service container as described at
# https://docs.gitlab.com/ee/ci/docker/using_docker_images.html#accessing-the-services
#
# Note that if you're using Kubernetes executor, the variable should be set to
# tcp://localhost:2375 because of how Kubernetes executor connects services
# to the job container
DOCKER_HOST: tcp://docker:2375/
# When using dind, it's wise to use the overlayfs driver for
# improved performance.
variables:
DOCKER_DRIVER: overlay2
services:
......@@ -293,6 +304,7 @@ services:
variables:
CONTAINER_IMAGE: registry.gitlab.com/$CI_PROJECT_PATH
DOCKER_HOST: tcp://docker:2375
DOCKER_DRIVER: overlay2
before_script:
......@@ -391,6 +403,9 @@ could look like:
image: docker:stable
services:
- docker:dind
variables:
DOCKER_HOST: tcp://docker:2375
DOCKER_DRIVER: overlay2
stage: build
script:
- docker login -u gitlab-ci-token -p $CI_JOB_TOKEN registry.example.com
......@@ -410,6 +425,8 @@ services:
- docker:dind
variables:
DOCKER_HOST: tcp://docker:2375
DOCKER_DRIVER: overlay2
IMAGE_TAG: $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_NAME
before_script:
......@@ -445,6 +462,8 @@ stages:
- deploy
variables:
DOCKER_HOST: tcp://docker:2375
DOCKER_DRIVER: overlay2
CONTAINER_TEST_IMAGE: registry.example.com/my-group/my-project/my-image:$CI_COMMIT_REF_NAME
CONTAINER_RELEASE_IMAGE: registry.example.com/my-group/my-project/my-image:latest
......
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