dps: Added.

dps.rb

@@ -0,0 +1,130 @@
+#!/usr/bin/env ruby
+require 'json'
+require 'socket'
+require 'net/http'
+
+COLOR_GREEN = ""
+COLOR_RED   = ""
+COLOR_GRAY  = ""
+COLOR_RESET = ""
+
+class Container
+	FIELDS = [:state, :dup, :ouroboros, :name, :vhosts, :nginx_allow, :status, :image, :ports]
+	@@lengths = Hash.new(0)
+	
+	def initialize(data)
+		@strings = {}
+		@data = data
+		
+		set :state, (@data[:State]=="running" ? COLOR_GREEN : COLOR_RED) + @data[:State].capitalize + COLOR_RESET
+		set :dup, @data[:Labels][:"de.fabianonline.dup"]=="true" ? "✓" : ""
+		set :ouroboros, @data[:Labels][:"com.centurylinklabs.watchtower.enable"]=="true" ? "✓" : ""
+		set :name, @data[:Names].first[1..-1]
+		
+		vh = @data[:Labels][:"nginx_virtual_host"]&.split(",")&.collect(&:strip)
+		if vh.nil? || vh.count==0
+			vh = ""
+		elsif vh.count==1
+			vh = vh.first
+		else
+			if FULL
+				vh = vh.join(", ")
+			else
+				vh = vh.first + ",…"
+			end
+		end
+		
+		set :vhosts, vh
+		
+		p = @data[:Ports].sort_by{|p| p[:PrivatePort]}.collect do |p|
+			type = p[:Type]=="tcp" ? "" : "/#{p[:Type]}"
+			if p[:PrivatePort]==p[:PublicPort]
+				"#{COLOR_GREEN}#{p[:PrivatePort]}#{type}"
+			elsif p[:PublicPort]==nil
+				"#{COLOR_GRAY}#{p[:PrivatePort]}#{type}"
+			else
+				"#{COLOR_RED}#{p[:PrivatePort]}->#{p[:PublicPort]}#{type}"
+			end
+		end.join(" ")
+		
+		set :nginx_allow, @data[:Labels][:"nginx_allow"]
+		st = @data[:Status]
+		if st.end_with?("(healthy)")
+			st = COLOR_GREEN + st.gsub("(healthy)", "(v)") + COLOR_RESET
+		elsif st.end_with?("(unhealthy)")
+			st = COLOR_RED + st.gsub("(unhealthy)", "(x)") + COLOR_RESET
+		end
+		set :status, st
+		im = @data[:Image]
+		im = im.split(":")[0] unless FULL
+		set :image, im
+		set :ports, p
+	end
+	
+	def set(key, value)
+		@data[key] = value
+		@@lengths[key] = [@@lengths[key], value.cleaned.length].max if value
+	end
+	
+	def self.lengths; FIELDS.map{|k| @@lengths[k]}; end
+	
+	def data
+		FIELDS.map{|k| @data[k]}
+	end
+end
+
+class String
+	def cleaned
+		self.gsub(/\[.+?m/, "")
+	end
+
+	def fix_length(len)
+		l = self.cleaned.length
+		shortened = self.length - l
+		
+		if l >= len
+			return self.slice(0, len + shortened)
+		else
+			return self + (" " * (len - l))
+		end
+	end
+end
+
+def fetch_data
+	socket = UNIXSocket.new("/var/run/docker.sock")
+	request = "GET /v1.24/containers/json?all=1 HTTP/1.0\r\n\r\n"#Host: localhost\r\n\r\n"
+	socket.write(request)
+
+	response = ""
+
+	loop do
+		break if socket.eof?
+		line = socket.gets
+		break if line=="\r\n"
+	end
+
+	until socket.eof?
+		line = socket.gets
+		response += line
+	end
+
+	return JSON.parse(response, symbolize_names: true)
+end
+
+FULL = ARGV[0]=="--full"
+
+data = fetch_data
+data = data.map{|c| Container.new(c).data}
+
+lengths = Container.lengths
+
+data.sort_by{|d| d[3]}.each do |row|
+	row.each_with_index do |d, index|
+		if index==row.length-1
+			print d.to_s
+		else
+			print d.to_s.fix_length(lengths[index]) + "  "
+		end
+	end
+	puts
+end