Golang test container image

This repository builds a container image suitable for running Go tests. Some useful features:

• generate Gitlab-compatible test and coverage report artifacts
• properly aggregate coverage data for a whole project (across all its sub-packages)

To use, include ci.yml from your project's .gitlab-ci.yml. Some useful variables that can be defined:

• GO_TEST_PACKAGES - Debian packages to install before running the tests
• GO_TEST_GENERATE - Set to a non-empty value to run "go generate ./..." before running the tests
• GO_TEST_ARGS - Additional arguments for "go test" (tags, etc)