6 # Initialize config settings from config.yml
7 config = YAML.load_file('config.yml')
9 # ============================================================
10 # Add dynamically chosen config settings. These settings should
11 # be suitable for any installation.
13 # Any _PW/_SECRET config settings represent passwords/secrets. If they
14 # are blank, choose a password randomly.
15 config.each_key do |var|
16 if (var.end_with?('_PW') || var.end_with?('_SECRET')) && (config[var].nil? || config[var].empty?)
17 config[var] = rand(2**256).to_s(36)
21 # ============================================================
22 # For each *.in file in the docker directories, substitute any
23 # @@variables@@ found in the file with the appropriate config
24 # variable. Support up to 10 levels of nesting.
26 # TODO(twp): add the *.in files directory to the source tree, and
27 # when expanding them, add them to the "generated" directory with
28 # the same tree structure as in the original source. Then all
29 # the files can be added to the docker container with a single ADD.
31 Dir.glob('*/generated/*') do |stale_file|
32 File.delete(stale_file)
35 Dir.glob('*/*.in') do |template_file|
36 generated_dir = File.join(File.dirname(template_file), 'generated')
37 Dir.mkdir(generated_dir) unless Dir.exists? generated_dir
38 output_path = File.join(generated_dir, File.basename(template_file, '.in'))
39 output = File.open(output_path, "w")
40 File.open(template_file) do |input|
41 input.each_line do |line|
45 @out = line.gsub!(/@@(.*?)@@/) do |var|
46 if config.key?(Regexp.last_match[1])
47 config[Regexp.last_match[1]]
49 var.gsub!(/@@/, '@_NOT_FOUND_@')
62 # Copy the ssh public key file to base/generated (if a path is given)
63 generated_dir = File.join('base/generated')
64 Dir.mkdir(generated_dir) unless Dir.exists? generated_dir
65 if config.key?('PUBLIC_KEY_PATH') &&
66 ! (config['PUBLIC_KEY_PATH'] == '') &&
67 File.readable?(config['PUBLIC_KEY_PATH'])
68 FileUtils.cp(config['PUBLIC_KEY_PATH'],
69 File.join(generated_dir, 'id_rsa.pub'))