71 lines
1.8 KiB
Ruby
71 lines
1.8 KiB
Ruby
require 'resolv'
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class InstanceConfiguration
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SSH_ALGORITHMS = %w(DSA ECDSA ED25519 RSA).freeze
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SSH_ALGORITHMS_PATH = '/etc/ssh/'.freeze
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CACHE_KEY = 'instance_configuration'.freeze
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EXPIRATION_TIME = 24.hours
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def settings
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@configuration ||= Rails.cache.fetch(CACHE_KEY, expires_in: EXPIRATION_TIME) do
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{ ssh_algorithms_hashes: ssh_algorithms_hashes,
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host: host,
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gitlab_pages: gitlab_pages,
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gitlab_ci: gitlab_ci }.deep_symbolize_keys
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end
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end
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private
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def ssh_algorithms_hashes
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SSH_ALGORITHMS.map { |algo| ssh_algorithm_hashes(algo) }.compact
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end
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def host
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Settings.gitlab.host
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end
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def gitlab_pages
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Settings.pages.to_h.merge(ip_address: resolv_dns(Settings.pages.host))
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end
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def resolv_dns(dns)
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Resolv.getaddress(dns)
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rescue Resolv::ResolvError
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end
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def gitlab_ci
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Settings.gitlab_ci
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.to_h
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.merge(artifacts_max_size: { value: Settings.artifacts.max_size&.megabytes,
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default: 100.megabytes })
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end
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def ssh_algorithm_file(algorithm)
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File.join(SSH_ALGORITHMS_PATH, "ssh_host_#{algorithm.downcase}_key.pub")
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end
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def ssh_algorithm_hashes(algorithm)
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content = ssh_algorithm_file_content(algorithm)
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return unless content.present?
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{ name: algorithm,
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md5: ssh_algorithm_md5(content),
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sha256: ssh_algorithm_sha256(content) }
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end
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def ssh_algorithm_file_content(algorithm)
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file = ssh_algorithm_file(algorithm)
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return unless File.exist?(file)
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File.read(file)
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end
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def ssh_algorithm_md5(ssh_file_content)
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OpenSSL::Digest::MD5.hexdigest(ssh_file_content).scan(/../).join(':')
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end
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def ssh_algorithm_sha256(ssh_file_content)
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OpenSSL::Digest::SHA256.hexdigest(ssh_file_content)
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end
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end
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