Clone an OpenShift app (rough script that will need tweaking)

clone.rb

#!/usr/bin/env ruby 

require 'json'
require 'yaml'

APP_LABEL = "mtls-nginx-example"
OUTPUT_FILENAME = "clone-output.yaml"
#OC_CONFIG = ""
OC_CONFIG = "--config ~/.kube/devcluster.conf"

def oc_get_all
  all = JSON.parse(`oc #{OC_CONFIG} get all -lapp=#{APP_LABEL} -o json`.chomp)
  cms = JSON.parse(`oc #{OC_CONFIG} get cm -lapp=#{APP_LABEL} -o json`.chomp)
  all["items"].concat(cms["items"])
  all
end

def remove_pods(all)
  items = all["items"].select do |item|
            item["kind"] != "Pod"
          end
  all["items"] = items
end

def remove_replica_sets(all)
  items = all["items"].select do |item|
            item["kind"] != "ReplicaSet"
          end
  all["items"] = items
end

def remove_replication_controllers(all)
  items = all["items"].select do |item|
            item["kind"] != "ReplicationController"
          end
  all["items"] = items
end

def remove_statuses(all)
  items = all["items"].each do |item|
            item.delete("status")
          end
  all["items"] = items
end

def clean_metadata(all)
  items = all["items"]

  items.map! do |item|
    md = item["metadata"]
    md.delete("selfLink")
    md.delete("uid")
    md.delete("resourceVersion")
    md.delete("creationTimestamp")
    md.delete("annotations")
    md.delete("generation")
    item["metadata"] = md
    item
  end

  all["items"] = items
  all.delete("metadata")
end

def main(args)
  all = oc_get_all
  # These mutate the argument
  remove_pods(all)
  remove_replica_sets(all)
  remove_replication_controllers(all)
  remove_statuses(all)
  clean_metadata(all)
  File.write(OUTPUT_FILENAME, all.to_yaml)
  puts "Operation successful.  Wrote output to file '#{OUTPUT_FILENAME}'"
end

main(ARGV)