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# frozen_string_literal: true
module Kubeclient
# Generates a bearer token for Google Cloud Platform.
class GCPCommandCredentials
class << self
def token(config)
require 'open3'
require 'shellwords'
require 'json'
require 'jsonpath'
cmd = config['cmd-path']
args = config['cmd-args']
token_key = config['token-key']
out, err, st = Open3.capture3(cmd, *args.split(' '))
raise "exec command failed: #{err}" unless st.success?
extract_token(out, token_key)
end
private
def extract_token(output, token_key)
JsonPath.on(output, token_key.gsub(/^{|}$/, '')).first
end
end
end
end
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