DevOps with Kubernetes - Second Edition

env

This section defines environment variables that are visible throughout a build:

DOCKER_REPO=devopswithkubernetes/okeydokeyBUILD_IMAGE_PATH=${DOCKER_REPO}:build-${TRAVIS_COMMIT}RELEASE_IMAGE_PATH=${DOCKER_REPO}:${TRAVIS_TAG}

Here, we set some variables that might be changed, such as the Docker registry path where the built image is heading. There's also metadata about a build passed from Travis CI in the form of environment variables, which is documented here: https://docs.travis-ci.com/user/environment-variables/#default-environment-variables. For example, TRAVIS_COMMIT represents the hash of the current commit, and we use it as an identifier to distinguish our images across builds.

The other source of environment variables is configured ...