| # Usage |
| |
| This directory contains a skylark rule to generate the toolchain configs. See README.md under |
| the root directory for the definition of toolchain configs. |
| |
| For a given version of Bazel, the `docker_toolchain_autoconfig` rule will: |
| * build the execution container image, |
| * install Bazel, |
| * build the container, and |
| * extract the toolchain config. |
| |
| Refer to the documentation in docker_config.bzl for more details of how to execute this rule |
| and how to extract the toolchain configs. |
| |
| The BUILD file in this directory contains 3 sample `docker_toolchain_autoconfig` targets which |
| use Bazel 0.7.0 to generate toolchain configs for: |
| * Debian8 Clang environment, |
| * Ubuntu Trusty GCC environment, and |
| * Ubuntu Xenial GCC environment. |
| |
| # Authentication |
| |
| If you are generating toolchain configs for the first time, you will probably encounter permission |
| issues while `docker` is trying to talk to `gcr.io`. |
| |
| If `gcloud` is installed, use `gcloud` as the Docker credential helper by following the instructions [here](https://cloud.google.com/sdk/gcloud/reference/auth/configure-docker). Otherwise, use `docker-credential-gcr` by following the instructions [here](https://github.com/GoogleCloudPlatform/docker-credential-gcr). |
