Backup and upload scripts for migrating from one Chef server to another.

download.rb

# disable JSON inflation
JSON.create_id = "no_thanks"

out_dir = "BACKUP"
Dir.mkdir(out_dir)

["nodes","clients","roles"].each do |t|
  Dir.mkdir( File.join( out_dir, t) )
  names = api.get(t).keys
  names.each do |name|
    the_node = api.get("#{t}/#{name}")
    open(File.join(out_dir,t,name),"w") do |f|
      f.write(the_node.to_json)
    end
  end
end

# Data bags are a little trickier
#Dir.mkdir( File.join( out_dir, "data_bags" ) )
data_bags = {}

api.get("data").keys.each do |bag_name|
  data_bags[ bag_name ] = {}
  
  # get on the bag name to get items
  api.get("data/#{bag_name}").keys.each do |item_name|
    item = api.get("data/#{bag_name}/#{item_name}")
    data_bags[ bag_name ][ item_name ] = item
  end
end

open(File.join(out_dir,"data_bags.json"),"w") do |f|
  f.write(data_bags.to_json)
end

upload.rb

# disable JSON inflation
JSON.create_id = "no_thanks"

out_dir = "BACKUP"

# -- load clients -- #

Dir["#{out_dir}/clients/*"].each do |path|
  client = JSON.parse(IO.read(path))
  puts "Posting client #{client['name']}"
  api.post("clients", {
    :name       => client['name'],
    :public_key => client['public_key']
  })
end

# -- load nodes -- #

Dir["#{out_dir}/nodes/*"].each do |path|
  the_node = JSON.parse(IO.read(path))
  api.post("nodes", the_node)
end

# -- load roles -- #

Dir["#{out_dir}/roles/*"].each do |path|
  the_node = JSON.parse(IO.read(path))
  api.post("roles", the_node)
end

# -- load data bags -- #

data_bags = {}
File.open("#{out_dir}/data_bags.json") do |f|
  data_bags = JSON.parse(f.read())
end

data_bags.each do |bag_name,bag|  
  # create data bag
  puts "Creating data bag #{bag_name}"
  api.post("data", {:name => bag_name})
  
  # create the items
  bag.each do |item_name,item|
    puts "Creating data bag item #{bag_name}/#{item_name}"
    api.post("data/#{bag_name}",item)
  end
end