More complete "docker inspect" into etcd

docker2etcd.rb

#!/usr/bin/env ruby

require 'uri'
require 'json'
require 'net/http'

def http_get(uri)
    JSON.parse(Net::HTTP.get(URI(uri)))
end

def http_put(uri,doc) 
    uri = URI.parse(uri)
    header = {'Content-Type'=> 'application/x-www-form-urlencoded'}
    if doc.class == Hash then
        header = {'Content-Type'=> 'application/json'}
    end
    http = Net::HTTP.new(uri.host, uri.port)
    request = Net::HTTP::Put.new(uri.request_uri, header)
    request.body = doc
    if doc.class == Hash then
        request.body=doc.to_json
    end
    response = http.request(request)
    JSON.parse(response.body)
end

def flatten(obj,sub)
    flat={}
    sub=sub.gsub("-","_").downcase
    obj.keys.each {|k|
        key=k.gsub("-","_").gsub("/","_").downcase
        if obj[k].class == Array then
            if(obj[k][0].class == Hash) then
                flat=flat.merge(flatten(obj[k][0],"#{sub}/#{k}"))
            end
        elsif obj[k].class == Hash then
            flat=flat.merge(flatten(obj[k],"#{sub}/#{k}"))
        else
            flat["#{sub}/#{key}"] = obj[k].to_s
        end
    }
    flat
end

host = ENV['HOST'] || `hostname -I | awk '{ print $2 }'`.gsub("\n","")
etcd = ENV['ETCD'] || "http://#{host}:4001"

`docker ps | tail -n+2 | awk '{ print $1 }'`.split("\n")
    .map  { |id| `docker inspect #{id}`  }
    .map  { |inspect| JSON.parse(inspect)[0]}
    .map  { |data| flatten(data,/([^\/]+\/)?([a-zA-Z\-_]+):?/.match(data["Config"]["Image"])[2]) }
    .each { |container| 
        name = container.keys.first.split("/").first
        port = `docker inspect #{container["#{name}/id"]} | grep -o '[0-9]\\+/tcp' | head -n1 | grep -o '[0-9]\\+'`.gsub("\n","")
        hport = container["#{name}/networksettings/ports/#{port}/tcp/hostport"]
        container["#{name}/url"] = "http://#{host}:#{hport}"
        container.keys.each {|key|
            if container[key] != nil then
                puts "#{key} = #{container[key]}"
                http_put("#{etcd}/v2/keys/#{key}","value=#{URI.encode(container[key])}")
            end
        }
    }

etcd2env.rb

#!/usr/bin/env ruby

# how to use: 
# $ eval "#(./etcd2env.rb)"

require 'uri'
require 'json'
require 'net/http'

def http_get(uri)
    JSON.parse(Net::HTTP.get(URI(uri)))
end

host = ENV['HOST'] || `hostname -I | awk '{ print $1 }'`.gsub("\n","")
etcd = ENV['ETCD'] || "http://#{host}:4001"

data = http_get("#{etcd}/v2/keys/?recursive=true")

def flatten(obj)
    flat = {}
    if obj["dir"] then
        obj["nodes"].each { |n|
            flat = flat.merge(flatten(n))
        }
    else
        key = obj["key"].gsub("/","_").gsub("-","_")
        flat[key[1..key.length]]=obj["value"]
    end
    flat
end

final = flatten( data["node"] )
final.keys.each {|k|
    puts "export #{k}=\"#{final[k]}\""
    puts "export #{k.upcase}=\"#{final[k]}\""
}