nechkin

How to install redis-cli and psql client on your machine with Docker

Preparing docker images

We will use minimalistic Linux distribution called Alpine (5MB)

Dockerfile of redis-cli

FROM alpine:latest
RUN apk --update add redis

nechkin

Git Submodules basic explanation

Why submodules?

In Git you can add a submodule to a repository. This is basically a repository embedded in your main repository. This can be very useful. A couple of advantages of using submodules:

• You can separate the code into different repositories.

nechkin

# brew install siege

# -c/--concurrent == number of concurrent requests
# -r/--reps == number of times to run the test

siege -c 10 -r 10 -b "http://www.domain.com/"

# Note: doesn't always work with SSL endpoints with self-signed certs
#       using Apache Ab in a Docker container seems to do the trick though
#       see https://gist.github.com/Integralist/01815f7abc7d18a97341

nechkin

#!/bin/bash

# script runs rabbit-init.jar waits 30 seconds for it to finish
# (wait time can be set with WAIT_TOTAL env property)

properties_location=$1

wait_pid() {
  local pid="$1"; shift
  local wait_total="${1:-10}"; shift # 10 seconds as default timeout

nechkin

#!/usr/local/bin/perl
use strict;
use YAML::Tiny;

my $maxAttempts = 60;
my $timeoutSeconds = 60;

# шаблон для команды получения списка Ready статусов для всех подов с заданым лейблом
my $separator = '\t';
my $jsonPath = '{range .items[*]}{@.metadata.name}{"'.$separator.'"}{@.status.conditions[?(@.type=="Ready")].status}{"\n"}{end}';

nechkin

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

/**
 * Type is erase in bytecode, but which method to call is inferred at compile type, when generics are available
 */
class Scratch {

    // can be called with Arrays.asList("a", "b"), type is inferred to String

nechkin

#!/bin/sh
 
# check for where the latest version of IDEA is installed
IDEA=`ls -1d /Applications/IntelliJ\ * | tail -n1`
wd=`pwd`

# were we given a directory?
if [ -d "$1" ]; then
#  echo "checking for things in the working dir given"
  wd=`ls -1d "$1" | head -n1`

nechkin

/**
 * WkHtmlToPdf table splitting hack.
 * 
 * Script to automatically split multiple-pages-spanning HTML tables for PDF 
 * generation using webkit.
 * 
 * To use, you must adjust pdfPage object's contents to reflect your PDF's 
 * page format. 
 * The tables you want to be automatically splitted when the page ends must 
 * have a class name of "splitForPrint" (can be changed).

nechkin

#!/bin/sh
# Init script for kibana
# From Kibana package
# Generated by pleaserun.
# Implemented based on LSB Core 3.1:
#   * Sections: 20.2, 20.3
#
### BEGIN INIT INFO
# Provides:          kibana
# Required-Start:    $remote_fs $syslog

nechkin

user="root"
group="root"
chroot="/"
chdir="/"
nice=""