Semi-irregular Sysadmin Ninja's Github Digest (Vol. 18)

I was slacking for a long time, I know. Sorry for that. I'll push two issues in a row now, this is the first one. Will try to make it more regular, will include other sources too.

1. The Crystal Programming Language 
http://crystal-lang.org
https://github.com/manastech/crystal
New programming language, named Crystal. "We love Ruby’s efficiency for writing code. We love C’s efficiency for running code. We want the best of both worlds." Programs look like Ruby, but compiles to efficient native code, and has compile-time error evaluation like Rust. Worth to check out, if you're PL freak, like me. :)

2. chef-koans
An experimental, test-driven way to learn about Chef.
https://github.com/leftathome/chef-koans
"An experimental, test-driven way to learn about Chef. Takes some inspiration from Ruby Koans and from other things that are awesome and simple." Unfortunately, only lesson number 0 is ready now - but you're welcome to contribute, of course!
Also, if you didn't read Vim koans or Git koans - please try, it's quite fun.

3. node-bell
Real-time anomalies detection for periodic time series.
http://eleme.io/blog/2014/metrics-monitor
https://github.com/eleme/node-bell

4. streem
prototype of stream based programming language
https://github.com/matz/streem
A prototype of new PL from an author of Ruby - Yukihiro "matz" Matsumoto. It's on very early stage of development.

5. sfs
Asynchronous Filesystem Replication
https://github.com/immobiliare/sfs

6. gitfs
Version controlled file system
http://presslabs.com/gitfs/
https://github.com/PressLabs/gitfs

7. awesome-courses
List of awesome university courses for learning Computer Science!
https://github.com/prakhar1989/awesome-courses

8. mochi
Dynamically typed functional programming language
https://github.com/i2y/mochi

9. consul-do
Do something based on leadership status
https://github.com/zeroXten/consul-do

10. openbay
The Pirate Bay source code.
https://github.com/isohuntto/openbay

Random Ops Github Digest #9 (August 3rd 2014)

Hello, my fellow readers!
I decided not ot wait until tomorrow and make new digest right now - still not sure if this digest will be weekly or more random and sporadic. :)

So, let's start, again, my favourite Github projects (sometimes Ops-like) in no particular order.

1. cheat
cheat allows you to create and view interactive cheatsheets on the command-line.
https://github.com/chrisallenlane/cheat
Like man command, but you'll get small cheatsheet just with commands instead big man page. Still not sure is it good thing or not....

2. awesome-django
A curated list of awesome Django apps and projects.
https://github.com/rosarior/awesome-django
Another Awesome list, but for Django developers. Can be useful for Django Ops too.

For you, fellow Puppeteers:

3. r10k
Smarter Puppet deployment, powered by killer robots
https://github.com/adrienthebo/r10k
Relatively new tool for Puppet installations, useful if you using librarian and dynamic environments.

4. hiera-consul
Hiera backend plugin for Consul
https://github.com/lynxman/hiera-consul
If you have working Consul cluster you can get/set vualues there directly from Hiera.

Going to DevOps stuff:

5. terraform
Terraform is a tool for building, changing, and combining infrastructure safely and efficiently. http://www.terraform.io
https://github.com/hashicorp/terraform
"Infrastructure-as-code" tool - describe your infrastructure, deploy and control it on different providers. It's not Puppet replacement though - http://www.terraform.io/intro/vs/chef-puppet.html - it's just more high level tool.

6. infratester
Infrastructure Behavior Testing Framework http://infrataster.net
https://github.com/ryotarai/infrataster
Another "Infrastructure-as-code" tool - it tests infrastructure's behaviour from outside of servers:



7. devstep
Development environment builder powered by Docker and buildpacks
https://github.com/fgrehm/devstep
A dead simple, no frills development environment builder that is based around a simple goal:
"I want to git clone and run a single command to hack on any software project."
For more information please check http://fgrehm.viewdocs.io/devstep

8. libcloud-vagrant
Apache Libcloud compute provider for local Vagrant boxes
https://github.com/carletes/libcloud-vagrant
"libcloud-vagrant is a compute provider for Apache Libcloud which uses Vagrant to create VirtualBox nodes. With libcloud-vagrant installed, you could prototype a small cluster on your laptop, for instance, and then deploy it later on to Amazon, Rackspace, or any of the other clouds supported by Libcloud."

Rest of things:

9. seL4
seL4 microkernel
https://github.com/seL4/seL4
Freshly opensourced L4-based microkernel, which has formal verification proof. Not really practical thing, but interesting - check its FAQ if curious.

10. snapzend
zfs send/receive backup system http://www.znapzend.org
https://github.com/oetiker/znapzend/
Cool new backup system specifically for ZFS!

11. pghero
Database insights made easy

https://github.com/ankane/pghero
Personally I didn't work with more-less loaded instance of PostgreSQL for quite long time. But if you do - please check it out - it's nice web dashboard for pg:


Today's fun section is quite big:

12. cool-old-term
A good looking terminal emulator which mimics the old cathode display
https://github.com/Swordifish90/cool-old-term 
Looks cool - but not sure is it OK for work:




13. ld-preload-sounds

Generates raw WAV output by hooking malloc() and read().
https://github.com/gordol/ld_preload-sounds
You can now hear how your compilation sounds like!

14. conway
A real-time, persistent, multiplayer version of Conway's Game of Life
https://github.com/drewblaisdell/conway
You can roll out your own server and play with friends or play with strangers right now on http://lifecompetes.com


Small disclaimer: I'm just big fan of Github and since we have so many sources of information around I pick Github as source of information for my digest of interesting open-source projects. And because I'm Ops/Sysadmin person - I choose projects which somewhat ops-related, but not necessary. I'm not GitHub employee and this digest is not connected with GitHub in any way.