123 lines
3.3 KiB
Ruby
123 lines
3.3 KiB
Ruby
require "json"
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require "log4r"
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module VagrantPlugins
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module DockerProvider
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class Driver
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# The executor is responsible for actually executing Docker commands.
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# This is set by the provider, but defaults to local execution.
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attr_accessor :executor
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def initialize
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@logger = Log4r::Logger.new("vagrant::docker::driver")
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@executor = Executor::Local.new
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end
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def build(dir, **opts)
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result = execute('docker', 'build', dir)
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regexp = /Successfully built (.+)$/i
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match = regexp.match(result)
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if !match
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# TODO: error
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end
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match[1]
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end
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def create(params)
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image = params.fetch(:image)
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links = params.fetch(:links)
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ports = Array(params[:ports])
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volumes = Array(params[:volumes])
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name = params.fetch(:name)
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cmd = Array(params.fetch(:cmd))
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env = params.fetch(:env)
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run_cmd = %W(docker run --name #{name} -d)
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run_cmd += env.map { |k,v| ['-e', "#{k}=#{v}"] }
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run_cmd += links.map { |k, v| ['--link', "#{k}:#{v}"] }
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run_cmd += ports.map { |p| ['-p', p.to_s] }
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run_cmd += volumes.map { |v| ['-v', v.to_s] }
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run_cmd += %W(--privileged) if params[:privileged]
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run_cmd += %W(-h #{params[:hostname]}) if params[:hostname]
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run_cmd += params[:extra_args] if params[:extra_args]
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run_cmd += [image, cmd]
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execute(*run_cmd.flatten).chomp
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end
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def state(cid)
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case
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when running?(cid)
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:running
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when created?(cid)
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:stopped
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else
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:not_created
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end
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end
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def created?(cid)
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result = execute('docker', 'ps', '-a', '-q', '--no-trunc').to_s
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result =~ /^#{Regexp.escape cid}$/
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end
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def running?(cid)
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result = execute('docker', 'ps', '-q', '--no-trunc')
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result =~ /^#{Regexp.escape cid}$/m
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end
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def privileged?(cid)
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inspect_container(cid)['HostConfig']['Privileged']
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end
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def start(cid)
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if !running?(cid)
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execute('docker', 'start', cid)
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# This resets the cached information we have around, allowing `vagrant reload`s
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# to work properly
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# TODO: Add spec to verify this behavior
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@data = nil
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end
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end
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def stop(cid)
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if running?(cid)
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execute('docker', 'stop', '-t', '1', cid)
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end
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end
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def rm(cid)
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if created?(cid)
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execute('docker', 'rm', '-v', cid)
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end
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end
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def inspect_container(cid)
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# DISCUSS: Is there a chance that this json will change after the container
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# has been brought up?
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@data ||= JSON.parse(execute('docker', 'inspect', cid)).first
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end
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def all_containers
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execute('docker', 'ps', '-a', '-q', '--no-trunc').to_s.split
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end
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def docker_bridge_ip
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output = execute('/sbin/ip', '-4', 'addr', 'show', 'scope', 'global', 'docker0')
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if output =~ /^\s+inet ([0-9.]+)\/[0-9]+\s+/
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return $1.to_s
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else
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# TODO: Raise an user friendly message
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raise 'Unable to fetch docker bridge IP!'
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end
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end
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def execute(*cmd, &block)
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@executor.execute(*cmd, &block)
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end
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end
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end
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end
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