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---
# Sanity checks to ensure the role will complete and provide helpful error
# messages for common problems.
- name: Error out if Docker pre-installed but too old
fail:
msg: "Docker {{ curr_docker_version.stdout }} is installed, but >= 1.9.1 is required."
when: not curr_docker_version | skipped and curr_docker_version.stdout != '' and curr_docker_version.stdout | version_compare('1.9.1', '<') and not docker_version is defined
- name: Error out if requested Docker is too old
fail:
msg: "Docker {{ docker_version }} requested, but >= 1.9.1 is required."
when: docker_version is defined and docker_version | version_compare('1.9.1', '<')
# If a docker_version was requested, sanity check that we can install or upgrade to it, and
# no downgrade is required.
- name: Fail if Docker version requested but downgrade is required
fail:
msg: "Docker {{ curr_docker_version.stdout }} is installed, but version {{ docker_version }} was requested."
when: not curr_docker_version | skipped and curr_docker_version.stdout != '' and docker_version is defined and curr_docker_version.stdout | version_compare(docker_version, '>')
# This involves an extremely slow migration process, users should instead run the
# Docker 1.10 upgrade playbook to accomplish this.
- name: Error out if attempting to upgrade Docker across the 1.10 boundary
fail:
msg: "Cannot upgrade Docker to >= 1.10, please upgrade or remove Docker manually, or use the Docker upgrade playbook if OpenShift is already installed."
when: not curr_docker_version | skipped and curr_docker_version.stdout != '' and curr_docker_version.stdout | version_compare('1.10', '<') and docker_version is defined and docker_version | version_compare('1.10', '>=')
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