Class: DreamOps::SoloInitializer

Inherits:
BaseInitializer show all
Defined in:
lib/dream-ops/init/solo.rb

Instance Method Summary collapse

Methods inherited from BaseInitializer

#__bail_with_fatal_error, #init, initiailizer_method

Instance Method Details

#analyze(targets) ⇒ Object 



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# File 'lib/dream-ops/init/solo.rb', line 3

def analyze(targets)
  @ssh_opts = "-i #{DreamOps.ssh_key} -o LogLevel=ERROR -o StrictHostKeyChecking=no"
  @q_all = "> /dev/null 2>&1"
  @q_stdout = "> /dev/null"

  result = []

  targets.each do |target|
    # Validate SSH creds
    if DreamOps.ssh_key.empty?
      __bail_with_fatal_error(NoSshKeyError.new())
    end
    hostname = `ssh #{@ssh_opts} #{target} sudo hostname 2>&1`.chomp
    if ! $?.success?
      __bail_with_fatal_error(InvalidSshKeyError.new(target, hostname))
    end

    DreamOps.ui.info "Target: #{hostname}"

    target_result = { host: target }

    target_result[:solo_installed] = system("ssh #{@ssh_opts} #{target} which chef-solo #{@q_all}")
    DreamOps.ui.info "--- Is chef-solo Installed: #{target_result[:solo_installed]}"

    target_result[:solo_json_exists] = system("ssh #{@ssh_opts} #{target} stat /var/chef/chef.json #{@q_all}")
    DreamOps.ui.info "--- Valid chef.json: #{target_result[:solo_json_exists]}"

    target_result[:setup_role_exists] = system("ssh #{@ssh_opts} #{target} stat /var/chef/roles/setup.json #{@q_all}")
    DreamOps.ui.info "--- Valid role[setup]: #{target_result[:setup_role_exists]}"

    target_result[:deploy_role_exists] = system("ssh #{@ssh_opts} #{target} stat /var/chef/roles/deploy.json #{@q_all}")
    DreamOps.ui.info "--- Valid role[deploy]: #{target_result[:deploy_role_exists]}"

    result << target_result
  end

  return result
end

#init_target(target, dryrun) ⇒ Object 



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# File 'lib/dream-ops/init/solo.rb', line 42

def init_target(target, dryrun)
  # Install chef-solo if not available
  if !target[:solo_installed]
    if dryrun
      DreamOps.ui.warn "...WOULD Install chef-solo via CINC [target=\"#{target[:host]}\"]"
    else
      DreamOps.ui.warn "...Installing chef-solo via CINC [target=\"#{target[:host]}\"]"

      # Get ubuntu version
      ubuntu_ver = `ssh #{@ssh_opts} #{target[:host]} "awk 'BEGIN { FS = \\"=\\" } /DISTRIB_RELEASE/ { print \\$2 }' /etc/lsb-release"`.chomp

      # Download and install the package
      deb_file = "cinc_17.10.0-1_amd64.deb"
      cinc_url = "http://downloads.cinc.sh/files/stable/cinc/17.10.0/ubuntu/#{ubuntu_ver}/#{deb_file}"
      if system("ssh #{@ssh_opts} #{target[:host]} \"wget #{cinc_url} -P /tmp\" #{@q_all}")
        `ssh #{@ssh_opts} #{target[:host]} "sudo dpkg -i /tmp/#{deb_file}" #{@q_all}`
        `ssh #{@ssh_opts} #{target[:host]} "sudo rm /tmp/#{deb_file}" #{@q_all}`
      else
        __bail_with_fatal_error(ChefSoloFailedError.new(target, cinc_url))
      end
    end
  end

  if !dryrun
    `ssh #{@ssh_opts} #{target[:host]} sudo mkdir -p /var/chef/cookbooks`
    `ssh #{@ssh_opts} #{target[:host]} sudo mkdir -p /var/chef/roles`

    if system("ssh #{@ssh_opts} #{target[:host]} which cinc-solo #{@q_all}")
      `ssh #{@ssh_opts} #{target[:host]} sudo mkdir /var/cinc`
      `ssh #{@ssh_opts} #{target[:host]} sudo ln -s /var/chef/cookbooks /var/cinc/cookbooks`
      `ssh #{@ssh_opts} #{target[:host]} sudo ln -s /var/chef/roles /var/cinc/roles`
    end
  end

  # Create empty json file for chef-solo
  if !target[:solo_json_exists]
    json_path = "/var/chef/chef.json"
    if dryrun
      DreamOps.ui.warn "...WOULD Create boilerplate #{json_path} [target=\"#{target[:host]}\"]"
    else
      DreamOps.ui.warn "...Creating boilerplate #{json_path} [target=\"#{target[:host]}\"]"
      `ssh #{@ssh_opts} #{target[:host]} "echo '{\n  \\"run_list\\": []\n}' | sudo tee -a #{json_path}"`
    end
  end

  # Create setup role with empty run_list for chef-solo
  if !target[:setup_role_exists]
    setup_path = "/var/chef/roles/setup.json"
    if dryrun
      DreamOps.ui.warn "...WOULD Create boilerplate #{setup_path} [target=\"#{target[:host]}\"]"
    else
      DreamOps.ui.warn "...Creating boilerplate #{setup_path} [target=\"#{target[:host]}\"]"
      role_contents = [
        '{',
        '  \"name\": \"setup\",',
        '  \"json_class\": \"Chef::Role\",',
        '  \"description\": \"This role is intended for use when cookbook changes are detected\",',
        '  \"chef_type\": \"role\",',
        '  \"run_list\": []',
        '}',
      ].join("\n")
      `ssh #{@ssh_opts} #{target[:host]} "echo '#{role_contents}' | sudo tee -a #{setup_path}"`
    end
  end

  # Create deploy role with empty run_list for chef-solo
  if !target[:deploy_role_exists]
    deploy_path = "/var/chef/roles/deploy.json"
    if dryrun
      DreamOps.ui.warn "...WOULD Create boilerplate #{deploy_path} [target=\"#{target[:host]}\"]"
    else
      DreamOps.ui.warn "...Creating boilerplate #{deploy_path} [target=\"#{target[:host]}\"]"
      role_contents = [
        '{',
        '  \"name\": \"deploy\",',
        '  \"json_class\": \"Chef::Role\",',
        '  \"description\": \"This role is intended for use when code changes\",',
        '  \"chef_type\": \"role\",',
        '  \"run_list\": []',
        '}',
      ].join("\n")
      `ssh #{@ssh_opts} #{target[:host]} "echo '#{role_contents}' | sudo tee -a #{deploy_path}"`
    end
  end
end