niquola

Books

Concepts-Techniques-Models-Computer-Programming CMT это известная книжка CMT, за которой слава закрепилась не хуже чем у SICP

это из этой книжки классификация различных парадигм Если присмотришься, то увидишь, что Oz поддерживает большинство вариаций (с этой целью его и конструировали, чтобы можно было наглядно продемонстрировать различные подходы в одном языке)

mikhailov

# This the bash script to handle up-and-runnig VM created through Vagrant
#!/usr/bin/env bash


# PRIVATE: error level message
error_message () {
  echo "$(tput setaf 1)ERROR: $1$(tput sgr0)"
}

qetzal

#ulsk -UlyanovskCity -#uln -#ulpolit -ulpravda -_media73_ -#m1tv -gerontolog73 -voronin_wi -Upravdom73 -platonova1991 -pysinata -ulsez -spravedlivo_ul -Timofeev -Denc2421 -Simbirsk_RF -mintrud73 -polad_fs 

kirikaza

#!/bin/bash

if ! aws --version 2> /dev/null ; then
  echo >&2 "command \`aws' is not found; maybe awscli is not installed"
  exit 1
fi

if ! jq --version 2> /dev/null ; then
  echo >&2 "command \`jq' is not found; maybe jq is not installed"
  exit 1

babysnakes

Modifying 'knife bootstrap' to exit with error upon failure.

Here is a description of the steps I took to cause knife bootstrap to exit with error when the remote bootstrap process fails. I was already calling the bootstrap programmatically (because I was adding a lot of business logic to it) so I didn't patch the bootstrap class but pulled out the pieces I needed.

The template.

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

fennb

# Set cache dir
proxy_cache_path /var/cache/nginx levels=1:2 
                 keys_zone=microcache:5m max_size=1000m;

# Virtualhost/server configuration
server {
    listen   80;
    server_name  yourhost.domain.com;

    # Define cached location (may not be whole site)

someara

bash -c '

echo <%= @config[:chef_node_name] %> > /tmp/chef_node_name

cat /tmp/chef_node_name | cut -d. -f1 > /tmp/proper_hostname
cat /tmp/chef_node_name | cut -d. -f2 | tr -d "\n" > /tmp/proper_dnsdomainname
echo -n "." >> /tmp/proper_dnsdomainname
cat /tmp/chef_node_name | cut -d. -f3 >> /tmp/proper_dnsdomainname

IPV4ADDR=`ip addr | grep eth0 | grep "inet " | cut -d " " -f 6 | cut -d \/ -f 1`

peplin

# Source accepts the protocol s3:// with the host as the bucket
# access_key_id and secret_access_key are just that
s3_file "/var/bulk/the_file.tar.gz" do
  source "s3://your.bucket/the_file.tar.gz"
  access_key_id your_key
  secret_access_key your_secret
  owner "root"
  group "root"
  mode 0644
end