| This directory includes scripts to build the docker container image used for |
| building flutter/engine in our CI system (currently [Cirrus](cirrus-ci.org)). |
| |
| In order to run the scripts, you have to set up `docker` and `gcloud`. Please |
| refer to internal doc go/installdocker for how to set up `docker` on gLinux. |
| |
| Cirrus will build (and cache) a Docker image based on this `Dockerfile` for |
| Linux tasks using its |
| [Dockerfile as CI](https://cirrus-ci.org/guide/docker-builder-vm/) feature. |
| Any change to the `Dockerfile` will cause a new task to be triggered to build |
| and tag a new version of the Docker image which will be a dependency of the |
| other Linux tasks. This task will instantiate a new GCP VM based on the image |
| specified in the `.cirrus.yml` `builder_image_name` field. |
| |
| To test changes to the Linux `Dockerfile`, create a PR with the changes, and |
| Cirrus will attempt to build a new image. |
| |
| To debug locally, you can build an image with `./build_docker.sh`, but pushing |
| to the registry is no longer necessary. |
