abayer

#!/bin/bash
#

# Copies certain kinds of known files and directories from a given Jenkins master directory
# into a git repo, removing any old ones, adds 'em, commits 'em, pushes 'em.
# 
set -ex

if [ $# -ne 2 ]; then
  echo usage: $0 root_dir jenkins_master

wdullaer

#!/bin/sh
# Cleanup docker files: untagged containers and images.
#
# Use `docker-cleanup -n` for a dry run to see what would be deleted.

untagged_containers() {
    # Print containers using untagged images: $1 is used with awk's print: 0=line, 1=column 1.
    # NOTE: "[0-9a-f]{12}" does not work with GNU Awk 3.1.7 (RHEL6).
    # Ref: https://github.com/blueyed/dotfiles/commit/a14f0b4b#commitcomment-6736470
    docker ps -a | tail -n +2 | awk '$2 ~ "^[0-9a-f]+$" {print $'$1'}'

gist:223853355d67123fdda8

#!/bin/bash

# Start/stop an EC2 instance for use as an ssh tunnel
# requires the aws package locally -- sudo apt-get install awscli
#
# usage: ./tunnel.sh start (spin up EC2 and create the tunnel)
#        ./tunnel.sh stop (terminate the EC2 instance to save money)
#        ./tunnel.sh resume (in case your tunnel is interrupted but the EC2 instance is still running)

# CHANGE THE PARAMETERS BELOW

emmanuelbernard

function setjava {
    local vmdir=/Library/Java/JavaVirtualMachines
    local ver=${1?Usage: setjava <version>}

    export JAVA_HOME=`/usr/libexec/java_home -v $ver`
    PATH=$(echo $PATH | tr ':' '\n' | grep -v $vmdir | tr '\n' ':')
    export PATH=$JAVA_HOME/bin:$PATH
   
    java -version
}

jerrac

# YAML config for these Ansible roles:
#    https://github.com/LaneCommunityCollege/aspects_logstash
#    https://github.com/LaneCommunityCollege/aspects_logstash_forwarder
# 
# Since it's just straight config blocks, you should be able to just copy and paste what you need if you don't use
# those Ansible roles.
#
# End result is multiline logs combined into one, and dates are parsed correctly.

aspects_logstash_rules:

koreno

Prebase

git-prebase improves on 'git rebase -i' by adding information per commit regarding which files it touched.

• Each file gets an alpha-numeric identifier at a particular column, a list of which appears below the commit list. (The identifiers wrap around after the 62nd file)
• Commits can be moved up and down safely (without conflicts) as long as their columns don't clash (they did not touch the same file).

Installation

Add the executable to your path and git will automatically expose it as

alecl

ChefDK, Test Kitchen Driven NTP Cookbook via Docker

This gist is a fork from lamont-granquist modified to be even easier and faster by taking advantage of Docker. Given the rapid development and change rate of Chef finding this gist with instructions that still are valid and reasonable was much appreciated.

This gist uses TK+Berkshelf to drive creating a vagrant virts and converging a simple recipe to install and configure NTPd. This is a simple cookbook that has one recipe, one template (for ntp.conf) and one attribute file. It works on Ubuntu 12.04/14.04 and CentOS 6.4/7.1 (and derviatives) and the attribute file is used to support both distros.

This should work on Mac (where I developed it) and any chef-supported Linux that you can get Docker onto (Ubuntu/CentOS).

Because I use ChefDK and Test Kitchen, I can largely ignore setting up Docker and Berkshelf and can get right to work on writing recipe code.

vancura

Source Code Typography

Presentation: http://www.slideshare.net/vancura/source-code-typography

Quotes

Dumb quotes (also known as straight quotes) are straight and vertical. Proper typography never uses straight quotes. They are left over from the age of typewriters, and their only modern use is for coding.

dserodio

# show process start time for a give PID (GNU ps)
ps -o lstart= -p $PID

# show process start time for all processes (GNU ps)
ps ax -O lstart


# show process environment variables (BSD grep)
ps -Eww -p $PID

so0k

Kubectl output options

Let's look at some basic kubectl output options.

Our intention is to list nodes (with their AWS InstanceId) and Pods (sorted by node).

We can start with:

kubectl get no