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# frozen_string_literal: true
class ChaosController < ActionController::Base
before_action :validate_request
def leakmem
memory_mb = (params[:memory_mb]&.to_i || 100)
duration_s = (params[:duration_s]&.to_i || 30).seconds
start = Time.now
retainer = []
# Add `n` 1mb chunks of memory to the retainer array
memory_mb.times { retainer << "x" * 1.megabyte }
duration_taken = (Time.now - start).seconds
Kernel.sleep duration_s - duration_taken if duration_s > duration_taken
render text: "OK", content_type: 'text/plain'
end
def cpuspin
duration_s = (params[:duration_s]&.to_i || 30).seconds
end_time = Time.now + duration_s.seconds
rand while Time.now < end_time
render text: "OK", content_type: 'text/plain'
end
def sleep
duration_s = (params[:duration_s]&.to_i || 30).seconds
Kernel.sleep duration_s
render text: "OK", content_type: 'text/plain'
end
def kill
Process.kill("KILL", Process.pid)
end
private
def validate_request
secret = ENV['GITLAB_CHAOS_SECRET']
# GITLAB_CHAOS_SECRET is required unless you're running in Development mode
if !secret && !Rails.env.development?
render text: "chaos misconfigured: please configure GITLAB_CHAOS_SECRET when using GITLAB_ENABLE_CHAOS_ENDPOINTS outside of a development environment", content_type: 'text/plain', status: 500
end
return unless secret
unless request.headers["HTTP_X_CHAOS_SECRET"] == secret
render text: "To experience chaos, please set X-Chaos-Secret header", content_type: 'text/plain', status: 401
end
end
end
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