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Build and Deploy Elixir releases to Kubernetes via Helm

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mandrag lib mix tasks mandrag.upgrade.cold.ex
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lib/mix/tasks/mandrag.upgrade.cold.ex 

defmodule Mix.Tasks.Mandrag.Upgrade.Cold do

  use Mix.Task

  import Mandrag



  def run(_) do

    message "Performing cold upgrade. Updating #{name} to #{version}."

    case location do

      :local -> scp "rel/#{name}/releases/#{version}/#{name}.tar.gz", "#{name}/run/#{name}.tar.gz"

      :remote -> ssh "cp #{name}/rel/#{name}/releases/#{version}/#{name}.tar.gz #{name}/run"

    end

    run_command("stop")

    ssh "cd #{name}/run && tar xf #{name}.tar.gz && rm #{name}.tar.gz"

    run_command("start")

  end

end