Koding——一个惊艳的在线编程开发平台

| Comments

最近在v2ex上发现了一个非常酷的云编程发开平台——Koding，与大家分享一下，主要介绍一下它的基本功能和操作。

What is Koding?

Koding是一个在线的编程开发平台，致力于简化全球化的合作项目开发，并为每个人提供免费计算和开发资源。它已不仅仅是一个在线的编辑器那么简单， 而是通过提供免费的虚拟机（vm），上面安装了ubuntu操作系统，有真实的终端，允许开发者进行go、nodejs、ruby、python、php、js、C/C++等语言的开发， 可以安装各种工具和应用，。更主要的是，它是完全在线的，可以从世界上的任何地方访问，只需要一个浏览器。不仅如此，他还具有完美的社交功能， 可以和团队成员在线协作。

Activity Feed

在Koding的Activity面板，是用户间交流的媒介，在这里可以看到一系列的状态更新、代码片段或用户动态。在这里你可以 创建主题，参与某些主题的讨论，可以关注他人，基本的社交功能都一应俱全。

Development on Koding

这是Koding的主体部分。在这里你可以像在本地计算机进行开发一样，当然这个可以在线操作，可以实现云同步，随时随地都可以访问，有木有很高大上？ 在这里你可以导入自己的GitHub项目，在浏览器中进行项目开发，可以向GitHub push你的项目更新。这里有在线终端，有在线文本编辑器，还有内置浏览器。 除了和在本地编程开发一样的功能以外，还可以自行配置和添加vm，设置自己的独立域名等。下面我们来看看vm的一些硬件参数，主要是cpu、内存、硬盘、网络等。

硬件信息概要，要加sudo使用根权限并输入密码，不加short参数可以查看详细信息 ``` sh ibillxia@vm-0:~$ sudo lshw -short [sudo] password for ibillxia:

H/W path Device Class Description

                 system     Computer

/0 bus Motherboard /0/0 memory 15GiB System memory /0/1 processor Intel(R) Xeon(R) CPU E5-2630 0 @ 2.30GHz /0/2 processor Intel(R) Xeon(R) CPU E5-2630 0 @ 2.30GHz /0/3 processor Intel(R) Xeon(R) CPU E5-2630 0 @ 2.30GHz /0/4 processor Intel(R) Xeon(R) CPU E5-2630 0 @ 2.30GHz /0/5 processor Intel(R) Xeon(R) CPU E5-2630 0 @ 2.30GHz /0/6 processor Intel(R) Xeon(R) CPU E5-2630 0 @ 2.30GHz /0/7 processor Intel(R) Xeon(R) CPU E5-2630 0 @ 2.30GHz /0/8 processor Intel(R) Xeon(R) CPU E5-2630 0 @ 2.30GHz /0/100 bridge 440FX - 82441FX PMC [Natoma] /0/100/1 bridge 82371SB PIIX3 ISA [Natoma/Triton II] /0/100/1.1 storage 82371SB PIIX3 IDE [Natoma/Triton II] /0/100/1.2 bus 82371SB PIIX3 USB [Natoma/Triton II] /0/100/1.3 bridge 82371AB/EB/MB PIIX4 ACPI /0/100/2 display GD 5446 /0/100/3 network Virtio network device /0/100/4 storage Virtio block device /0/100/5 memory RAM memory /1 eth0 network Ethernet interface /2 gretap0 network Ethernet interface 查看cpu信息，E5-2630 8核2.30GHz，本文只摘取第1个核的信息 sh ibillxia@vm-0:~$ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 45 model name : Intel(R) Xeon(R) CPU E5-2630 0 @ 2.30GHz stepping : 7 microcode : 0x1 cpu MHz : 2299.998 cache size : 4096 KB physical id : 0 siblings : 1 core id : 0 cpu cores : 1 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt aes xsave avx hyperv isor lahf_lm xsaveopt bogomips : 4599.99 clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: 查看内存信息，共16GB内存 sh ibillxia@vm-0:~$ cat /proc/meminfo
MemTotal: 16433708 kB MemFree: 8506472 kB Buffers: 332884 kB Cached: 5334908 kB SwapCached: 0 kB Active: 3936496 kB Inactive: 2222980 kB Active(anon): 2093920 kB Inactive(anon): 10856 kB Active(file): 1842576 kB Inactive(file): 2212124 kB Unevictable: 5552 kB Mlocked: 5552 kB SwapTotal: 0 kB SwapFree: 0 kB Dirty: 0 kB Writeback: 8 kB AnonPages: 482832 kB Mapped: 41668 kB Shmem: 1623556 kB Slab: 1522048 kB SReclaimable: 1225180 kB SUnreclaim: 296868 kB KernelStack: 6312 kB PageTables: 84660 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 8216852 kB Committed_AS: 5225664 kB VmallocTotal: 34359738367 kB VmallocUsed: 45688 kB VmallocChunk: 34359561000 kB HardwareCorrupted: 0 kB AnonHugePages: 18432 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 245748 kB DirectMap2M: 7094272 kB DirectMap1G: 9437184 kB 硬盘测速，才219kB/s，不是一般的慢啊 sh ibillxia@vm-0:~$ dd if=/dev/zero of=test bs=64k count=2k oflag=dsync 2048+0 records in 2048+0 records out 134217728 bytes (134 MB) copied, 612.942 s, 219 kB/s 网速测试，一般般 sh ibillxia@vm-0:~$ ping www.github.com # 测试1 PING github.com (192.30.252.129) 56(84) bytes of data. 64 bytes from ip1b-lb3-prd.iad.github.com (192.30.252.129): icmp_req=1 ttl=54 time=73.2 ms 64 bytes from ip1b-lb3-prd.iad.github.com (192.30.252.129): icmp_req=2 ttl=54 time=75.9 ms 64 bytes from ip1b-lb3-prd.iad.github.com (192.30.252.129): icmp_req=3 ttl=54 time=72.4 ms 64 bytes from ip1b-lb3-prd.iad.github.com (192.30.252.129): icmp_req=4 ttl=54 time=72.3 ms 64 bytes from ip1b-lb3-prd.iad.github.com (192.30.252.129): icmp_req=5 ttl=54 time=66.2 ms 64 bytes from ip1b-lb3-prd.iad.github.com (192.30.252.129): icmp_req=6 ttl=54 time=66.1 ms ^C --- github.com ping statistics --- 6 packets transmitted, 6 received, 0% packet loss, time 5001ms rtt min/avg/max/mdev = 66.117/71.077/75.947/3.656 ms ibillxia@vm-0:~$ ping www.stackoverflow.com # 测试2 PING stackoverflow.com (198.252.206.140) 56(84) bytes of data. 64 bytes from stackoverflow.com (198.252.206.140): icmp_req=1 ttl=49 time=76.1 ms 64 bytes from stackoverflow.com (198.252.206.140): icmp_req=2 ttl=49 time=88.4 ms 64 bytes from stackoverflow.com (198.252.206.140): icmp_req=3 ttl=49 time=75.1 ms 64 bytes from stackoverflow.com (198.252.206.140): icmp_req=4 ttl=49 time=75.1 ms 64 bytes from stackoverflow.com (198.252.206.140): icmp_req=5 ttl=49 time=75.3 ms 64 bytes from stackoverflow.com (198.252.206.140): icmp_req=6 ttl=49 time=82.6 ms ^C --- stackoverflow.com ping statistics --- 6 packets transmitted, 6 received, 0% packet loss, time 5005ms rtt min/avg/max/mdev = 75.130/78.813/88.437/5.061 ms ibillxia@vm-0:~$ ping www.facebook.com # 测试3 PING star.c10r.facebook.com (31.13.77.81) 56(84) bytes of data. 64 bytes from edge-star-shv-06-sjc1.facebook.com (31.13.77.81): icmp_req=1 ttl=81 time=153 ms 64 bytes from edge-star-shv-06-sjc1.facebook.com (31.13.77.81): icmp_req=2 ttl=81 time=153 ms 64 bytes from edge-star-shv-06-sjc1.facebook.com (31.13.77.81): icmp_req=3 ttl=81 time=153 ms 64 bytes from edge-star-shv-06-sjc1.facebook.com (31.13.77.81): icmp_req=4 ttl=81 time=153 ms 64 bytes from edge-star-shv-06-sjc1.facebook.com (31.13.77.81): icmp_req=5 ttl=81 time=153 ms ^C --- star.c10r.facebook.com ping statistics --- 6 packets transmitted, 5 received, 16% packet loss, time 5006ms rtt min/avg/max/mdev = 153.577/153.740/153.951/0.449 ms ```

再来看看一些系统和软件信息。

查看linux内核版本、系统体系结构及预安装软件版本 sh ibillxia@vm-0:~$ uname -a Linux vm-0.ibillxia.koding.kd.io 3.13.0-5-generic #20 SMP Mon Jan 20 19:56:12 PST 2014 x86_64 x86_64 x86_64 GNU/Linux ibillxia@vm-0:~$ git --version git version 1.8.1.2 ibillxia@vm-0:~$ mysql --version mysql Ver 14.14 Distrib 5.5.32, for debian-linux-gnu (x86_64) using readline 6.2 ibillxia@vm-0:~$ apache2 -v Server version: Apache/2.2.22 (Ubuntu) Server built: Jul 12 2013 13:18:14 常用编程语言版本 ``` sh ibillxia@vm-0:~$ gcc --version gcc (Ubuntu/Linaro 4.7.3-1ubuntu1) 4.7.3 Copyright (C) 2012 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

ibillxia@vm-0:~$ g++ --version g++ (Ubuntu/Linaro 4.7.3-1ubuntu1) 4.7.3 Copyright (C) 2012 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

ibillxia@vm-0:~$ java -version java version "1.7.0_25" OpenJDK Runtime Environment (IcedTea 2.3.10) (7u25-2.3.10-1ubuntu0.13.04.2) OpenJDK 64-Bit Server VM (build 23.7-b01, mixed mode) ibillxia@vm-0:~$ go version
go version go1.1.1 linux/amd64 ibillxia@vm-0:~$ ruby --version ruby 1.9.3p194 (2012-04-20 revision 35410) [x86_64-linux] ibillxia@vm-0:~$ php --version PHP 5.4.9-4ubuntu2.3 (cli) (built: Sep 4 2013 19:32:25) Copyright (c) 1997-2012 The PHP Group Zend Engine v2.4.0, Copyright (c) 1998-2012 Zend Technologies ibillxia@vm-0:~$ python --version
Python 2.7.4 ibillxia@vm-0:~$ perl --version

This is perl 5, version 14, subversion 2 (v5.14.2) built for x86_64-linux-gnu-thread-multi (with 80 registered patches, see perl -V for more detail)

Copyright 1987-2011, Larry Wall

Perl may be copied only under the terms of either the Artistic License or the GNU General Public License, which may be found in the Perl 5 source kit.

Complete documentation for Perl, including FAQ lists, should be found on this system using "man perl" or "perldoc perl". If you have access to the Internet, point your browser at http://www.perl.org/, the Perl Home Page. ```

Installing and Using KDApps

除了系统已安装的基本应用外，用户还可以在Koding/Apps上选择一些官方的apps安装到自己的vm上。可以 在线绘图、编辑照片等等。

Online Teamwork

Koding还具有团退协作功能，你可以创建自己的group或参加到别人的group中。加入到一个team后，系统会分配你一个Session ID，通过这个ID你可以进入 到队友的vm当中，然后你们相互之间都可以看到对方的编码动态。

关于Koding的更多内容，请戳Learn Koding。

Original Link: http://ibillxia.github.io/blog/2014/03/01/koding-an-amazing-online-development-environment/
Attribution - NON-Commercial - ShareAlike - Copyright © Bill Xia