46 lines
1.5 KiB
Ruby
46 lines
1.5 KiB
Ruby
module Vagrant
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module LXC
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module Action
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class FetchIpWithLxcAttach
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# Include this so we can use `Subprocess` more easily.
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include Vagrant::Util::Retryable
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def initialize(app, env)
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@app = app
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@logger = Log4r::Logger.new("vagrant::lxc::action::fetch_ip_with_lxc_attach")
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end
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def call(env)
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env[:machine_ip] ||= assigned_ip(env)
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rescue LXC::Errors::NamespacesNotSupported
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@logger.info 'The `lxc-attach` command available does not support the --namespaces parameter, falling back to dnsmasq leases to fetch container ip'
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ensure
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@app.call(env)
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end
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def assigned_ip(env)
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config = env[:machine].provider_config
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fetch_ip_tries = config.fetch_ip_tries
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driver = env[:machine].provider.driver
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ip = ''
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retryable(:on => LXC::Errors::ExecuteError, :tries => fetch_ip_tries, :sleep => 3) do
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unless ip = get_container_ip_from_ip_addr(driver)
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# retry
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raise LXC::Errors::ExecuteError, :command => "lxc-attach"
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end
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end
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ip
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end
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# From: https://github.com/lxc/lxc/blob/staging/src/python-lxc/lxc/__init__.py#L371-L385
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def get_container_ip_from_ip_addr(driver)
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output = driver.attach '/sbin/ip', '-4', 'addr', 'show', 'scope', 'global', 'eth0', namespaces: ['network', 'mount']
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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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end
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end
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end
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end
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end
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end
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