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Change-Id: I8157ec1f31b8c5a064b63002e8311b91ef9ce9ab See: https://ansible-lint.readthedocs.io/en/latest/default_rules.html#file-permissions-not-mentioned
Configure docker to use mirrors if available.
Role Variables
URL to override the generated docker hub mirror url based on :zuul
ensure-docker.mirror_fqdn
.