SQiShER

go_gc_duration_seconds                                        | haproxy_backend_active_servers
go_gc_duration_seconds_count                                  | haproxy_backend_backup_servers
go_gc_duration_seconds_sum                                    <
go_goroutines                                                 <
go_info                                                       <
go_memstats_alloc_bytes                                       <
go_memstats_alloc_bytes_total                                 <
go_memstats_buck_hash_sys_bytes                               <
go_memstats_frees_total                                       <
go_memstats_gc_cpu_fraction                                   <

ingshtrom

# HELP haproxy_process_nbthread Configured number of threads.
# TYPE haproxy_process_nbthread gauge
haproxy_process_nbthread 4
# HELP haproxy_process_nbproc Configured number of processes.
# TYPE haproxy_process_nbproc gauge
haproxy_process_nbproc 1
# HELP haproxy_process_relative_process_id Relative process id, starting at 1.
# TYPE haproxy_process_relative_process_id gauge
haproxy_process_relative_process_id 1
# HELP haproxy_process_start_time_seconds Start time in seconds.

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

rosstimson

# Dockerfile for ffmpeg with pretty much support for everything as per:
# https://trac.ffmpeg.org/wiki/CompilationGuide/Centos
# includes codecs with weird licensing like MP3 and AAC.
#

FROM fedora
MAINTAINER Ross Timson <ross@rosstimson.com>

# Install build requirements.
RUN dnf install -y autoconf automake cmake freetype-devel gcc gcc-c++ git libtool make mercurial nasm pkgconfig zlib-devel

lelandbatey

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results

aras-p

// Just before switching jobs:
// Add one of these.
// Preferably into the same commit where you do a large merge.
//
// This started as a tweet with a joke of "C++ pro-tip: #define private public",
// and then it quickly escalated into more and more evil suggestions.
// I've tried to capture interesting suggestions here.
//
// Contributors: @r2d2rigo, @joeldevahl, @msinilo, @_Humus_,
// @YuriyODonnell, @rygorous, @cmuratori, @mike_acton, @grumpygiant,

danneu

My efforts to port http://www.youtube.com/watch?v=f6kdp27TYZs to Clojure.

A boring function (6:22)

func boring(msg string) {
  for i := 0; ; i++ {
    fmt.Println(msg, i)
    time.Sleep(time.Second)
 }

spiralman

import unittest
import collections

tests = collections.defaultdict(list)


class BddLoader(object):
    def loadTestsFromModule(self, module):
        return unittest.TestSuite(tests[module.__name__])

temoto

package main

import (
	"crypto/aes"
	"crypto/cipher"
	"fmt"
)

func EncryptAESCFB(dst, src, key, iv []byte) error {
	aesBlockEncrypter, err := aes.NewCipher([]byte(key))

rgreenjr

-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query 
FROM pg_stat_activity 
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query 
FROM pg_stat_activity 
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'