zalando-stups / pierone-cli / 397

80%

master: 79%

Pull #90

travis-ci

Respect `DOCKER_CONFIG` environment variable

Docker allows setting a custom directory to store its configuration via
the "DOCKER_CONFIG" environment variable. The `pierone` command-line
interface however did not previously read this value if it was present.

This update makes sure `pierone` works with the correct directory and
Docker configuration files.

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460 of 573 relevant lines covered (80.28%)

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