26b1d57c90
If curl is not available to download the docker install script, try with wget instead. If neither is available or both fail, return a simple failing script so that we don't carry on regardless. Fixes: https://github.com/basecamp/kamal/issues/395
31 lines
827 B
Ruby
31 lines
827 B
Ruby
class Kamal::Commands::Docker < Kamal::Commands::Base
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# Install Docker using the https://github.com/docker/docker-install convenience script.
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def install
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pipe get_docker, :sh
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end
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# Checks the Docker client version. Fails if Docker is not installed.
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def installed?
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docker "-v"
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end
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# Checks the Docker server version. Fails if Docker is not running.
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def running?
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docker :version
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end
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# Do we have superuser access to install Docker and start system services?
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def superuser?
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[ '[ "${EUID:-$(id -u)}" -eq 0 ] || command -v sudo >/dev/null || command -v su >/dev/null' ]
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end
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private
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def get_docker
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shell \
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any \
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[ :curl, "-fsSL", "https://get.docker.com" ],
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[ :wget, "-O -", "https://get.docker.com" ],
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[ :echo, "\"exit 1\"" ]
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end
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end
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