ernestas-poskus

A good commit message looks like this:

	Header line: explaining the commit in one line

	Body of commit message is a few lines of text, explaining things
	in more detail, possibly giving some background about the issue
	being fixed, etc etc.

	The body of the commit message can be several paragraphs, and
	please do proper word-wrap and keep columns shorter than about

ernestas-poskus

pub trait IterOps<T, I>: IntoIterator<Item = T>
    where I: IntoIterator<Item = T>,
          T: PartialEq {
    fn intersect(self, other: I) -> Vec<T>;
    fn difference(self, other: I) -> Vec<T>;
}

impl<T, I> IterOps<T, I> for I
    where I: IntoIterator<Item = T>,
          T: PartialEq

ernestas-poskus

# Modify this file accordingly for your specific requirement.
# http://www.thegeekstuff.com
# 1. Delete all existing rules
iptables -F

# 2. Set default chain policies
iptables -P INPUT DROP
iptables -P FORWARD DROP
iptables -P OUTPUT DROP

ernestas-poskus

#!/bin/bash

echo "There is $# args specified"
echo "The args supplied are $*"
echo "The first arg is $1"
echo "The PID of process is $$"
shift
echo "Arguments shifted now first argument is $1 and count is $#"

ernestas-poskus

- name: ensure github.com is a known host
  lineinfile:
    dest: /root/.ssh/known_hosts
    create: yes
    state: present
    line: "{{ lookup('pipe', 'ssh-keyscan -t rsa github.com') }}"
    regexp: "^github\\.com"

ernestas-poskus

#!/bin/bash
#####################################################
# Name: Bash CheatSheet for Mac OSX
# 
# A little overlook of the Bash basics
#
# Usage:
#
# Author: J. Le Coupanec
# Date: 2014/11/04

ernestas-poskus

- name: Debug
  hosts: all
  sudo: yes
  vars:
    ips: "
    {%- set ips = [] %}
    {%- for host in groups['all'] %}
    {{- ips.append(dict(type='host', database='IS', user='USER', address=hostvars[host].ansible_default_ipv4.address, method='md5', command='')) }}
    {%- endfor %}
    {{- ips -}}"

ernestas-poskus

---
- hosts: all
  remote_user: root
  tasks:
    - shell: '/usr/sbin/ip a'
      register: cmd

    - debug:
        msg: "{{ cmd.stdout }}"

ernestas-poskus

/// Create and run a new broadcaster, returning the sender used to broadcast a
/// message to multiple consumers, and the control structure used to generate a
/// new receiver for a consumer.
///
/// # Example
///
/// ```
/// let (bc, bc_ctrl) = broadcaster();
///
/// // Spawn some children that you would like to broadcast to:

ernestas-poskus

To debug cookbook:

• require 'pry'; binding.pry
• kitchen login
• /opt/chef/embedded/bin/ruby /opt/chef/bin/chef-client --local-mode --config /tmp/kitchen/client.rb --log_level auto --force-formatter --no-color --json-attributes /tmp/kitchen/dna.json --chef-zero-port 8889