ELBのAttributes(Cross-Zone Load BalancingとかConnectionDrainingとかをMarkdownで表示する)

#!/usr/bin/env ruby

require 'json'

elbs = `aws elb describe-load-balancers | jq '.LoadBalancerDescriptions[].LoadBalancerName'`

puts "| ELB Name | ConnectionDraining | ConnectionDraining Timeout | CrossZoneLoadBalancing | ConnectionSettingsTimeout | AccessLog |"
puts "| --- | --- | --- | --- | --- | --- |"
elbs.each_line do |elb|
  elb = elb.chomp
  attributes                = JSON.load(`aws elb describe-load-balancer-attributes --load-balancer-name #{elb}`)
  connection_during         = attributes['LoadBalancerAttributes']['ConnectionDraining']['Enabled']
  connection_during_timeout = attributes['LoadBalancerAttributes']['ConnectionDraining']['Timeout'] || '-'
  cross_zone                = attributes['LoadBalancerAttributes']['CrossZoneLoadBalancing']['Enabled']
  connection_setting_idle   = attributes['LoadBalancerAttributes']['ConnectionSettings']['IdleTimeout']
  access_log                = attributes['LoadBalancerAttributes']['AccessLog']['Enabled']
  puts "| #{elb.chomp} | #{connection_during} | #{connection_during_timeout} | #{cross_zone} | #{connection_setting_idle} | #{access_log} |"
end '.LoadBalancerDescriptions[].LoadBalancerName'

| ELB Name | ConnectionDraining | ConnectionDraining Timeout | CrossZoneLoadBalancing | ConnectionSettingsTimeout | AccessLog |
| --- | --- | --- | --- | --- | --- |
| "foo-elb" | true | 300 | true | 60 | false |

とかで出る