Weekly Ops Github Digest #8 (July 29th 2014)

So, it seems that our digest becoming quite regular, it's issue number 8 and number 7 was out exactly one week ago, same as issue 6 was two weeks ago, nice.

Let's try to keep it that way - new issue every Monday/Tuesday, for fresh start of new week!
... but please note that possible upcoming vacation can interfere with my intentions. :)

OK, let's go.

1. elvish
An experimental Unix shell
https://github.com/xiaq/elvish
Nice new experimental shell (written in Go), more traditional than Xiki but also with intresting new features, like nice autocompletion and navigation mode, built in daemon for syncing command history from different instances and new Clojure/Lisp-like built-in language. Worth a try, but only if you have Linux, it doesn't compile on Mac, so, if you have one and want to be a contributor - welcome.

2. perf-tools
Performance analysis tools based on Linux perf_events (aka perf) and ftrace.
https://github.com/brendangregg/perf-tools
Set of performance analyzing tools for Linux, using (relatively) new Ftrace interface, written by famous Brendan D. Gregg, author of Systems Performance book, DTrace book etc.

Will not talk much about that, in short - amazing stuff, check my previous post about it.

3. Next 3 repos connected with Docker, lets merge them together:

Fig.
Fast, isolated development environments using Docker http://www.fig.sh
https://github.com/orchardup/fig
Describe your environment in single file and run it with single command "fig up".
Looks cool? Then check out

Octohost.
Simple web focused Dockerfile based PaaS server.
http://www.octohost.io/
https://github.com/octohost/octohost
Similar idea, but realization is little bit different - and idea is more general and limited at the same time. Just add Dockerfile to your webapp and after that run "git push" to deploy your project on choosen environment (Vagrant/Amazon/Digital Ocean/Rackspace/own server) - but only limited (but quite poular) languages and platforms are supported.

Next thing -
Registrator.
Service registry bridge for Docker
https://github.com/progrium/registrator
will help you with automatic "register/deregisters services for containers based on published ports and metadata from the container environment". I.e. you can automatically add/remove services to LB, for example. External service registers/pairing/discovery are supported also. Nice thing if your building scalable application on Docker.


Going to more general developer's stuff.

4. Two Git help pages. More general

Git Cheat Sheet
https://github.com/ArslanBilal/Git-Cheat-Sheet

and more specific

git-flight-rules
https://github.com/k88hudson/git-flight-rules

First one is normal Git cheat sheet, but second one is more like FAQ and list of common tasks and workarounds.


5. CockroachDB.
A Scalable, Geo-Replicated, Transactional Datastore
https://github.com/cockroachdb/cockroach

So, it looks like NoSQL is not very popular buzzword now, NewSQL is much better!
But if talking seriously it really looks promising - it took better parts from both worlds:



ALPHA for now, we'll see how it'll going.

6. pycrastinate
TODO less, DO more. Keep your code clean without changing the way you code.
https://github.com/isaacbernat/pycrastinate
Pycrastinate is a language-agnostic tool that helps you keep your codebase (whether it is legacy or new) under control in a transparent way (i.e. without interfering with your coding). I.e. it checks for FIXMEs and TODOs and gently tring to force you to do something with that. :)
Check this talk or slides if interested.

7. Streisand.
https://github.com/jlund/streisand
"Streisand sets up a new server running L2TP/IPsec, OpenSSH, OpenVPN, Shadowsocks, Stunnel, and a Tor bridge. It also generates custom configuration instructions for all of these services. At the end of the run you are given an HTML file with instructions that can be shared with friends, family members, and fellow activists."
Not like very funny thing, especially for persons who struggle with internet censorshop somewhere but worth to checking then.

And time for fun!

8. IPFS
The Permanent Web http://ipfs.io
https://github.com/jbenet/ipfs
According to website:
"IPFS is a global, versioned, peer-to-peer filesystem. It combines good ideas from Git, BitTorrent, Kademlia, SFS, and the Web. It is like a single bittorrent swarm, exchanging git objects. IPFS provides an interface as simple as the HTTP web, but with permanence built in. You can also mount the world at /ipfs."
Very experimental thing for now, but maybe it's the source of new Internet, who knows?