StevenACoffman

Fluent-bit rocks

A short survey of log collection options and why you picked the wrong one. 😜

Who am I? Where am I from?

I'm Steve Coffman and I work at Ithaka. We do JStor (academic journals) and other stuff. How big is it?

Number	what it means
101,332,633	unique visitors in 2017

ekreutz

Ansible variable precedence

Source: http://docs.ansible.com/ansible/latest/playbooks_variables.html#variable-precedence-where-should-i-put-a-variable

From least to most important

• command line values (for example, -u my_user, these are not variables)
• role defaults (defined in role/defaults/main.yml)
• inventory file or script group vars
• inventory group_vars/all

posener

Story: Writing Scripts with Go

This is a story about how I tried to use Go for scripting. In this story, I’ll discuss the need for a Go script, how we would expect it to behave and the possible implementations; During the discussion I’ll deep dive to scripts, shells, and shebangs. Finally, we’ll discuss solutions that will make Go scripts work.

Why Go is good for scripting?

While python and bash are popular scripting languages, C, C++ and Java are not used for scripts at all, and some languages are somewhere in between.

arikfr

import os
import requests
import time
from pprint import pprint


def poll_job(s, redash_url, job):
    # TODO: add timeout
    while job['status'] not in (3,4):
        response = s.get('{}/api/jobs/{}'.format(redash_url, job['id']))

posener

Why I Recommend to Avoid Using the go-kit Library

There is a trending 'microservice' library called go-kit. I've been using the go-kit library for a while now. The library provide a lot of convenience integrations that you might need in your service: with service discovery with Consul, distributed tracing with Zipkin, for example, and nice logic utilities such as round robin client side load balancing, and circuit breaking. It is also providing a way to implement communication layer, with support of RPC and REST.

tsuriga

[DEFAULT]
; Operation mode
; This is a global value for all sections
mode = master

[server]

; Connection lifetime
timeout = 3600

gilbertw1

Macbook Arch Guide

• Installation
• General Setup
• System Time
• Display
• Keyboard
• Touchpad
• Sound
• Bluetooth

devhero

Byobu is a suite of enhancements to tmux, as a command line
tool providing live system status, dynamic window management,
and some convenient keybindings:

  F1                             * Used by X11 *
    Shift-F1                     Display this help
  F2                             Create a new window
    Shift-F2                     Create a horizontal split
    Ctrl-F2                      Create a vertical split
    Ctrl-Shift-F2                Create a new session

beci

sudo add-apt-repository ppa:ubuntu-toolchain-r/test
sudo apt-get update
sudo apt-get install gcc-5 g++-5

sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-5 60 --slave /usr/bin/g++ g++ /usr/bin/g++-5

Frick

function fixssh {
    local hostname=""
    local ip=""
    for arg in $@; do
        local hostout=$(host "$arg" 2>/dev/null)
        if [ $? -eq 0 ]; then
            local out=$(echo "$hostout" | grep -o "has address .*$" | grep -Eo "[0-9.]{7,15}")
            if [ $? -eq 0 ]; then
                local hostname="$arg"
                local ip="$out"