IngussNeilands

digraph architecture {
  rankdir=LR;

  // Storage - #303F9F (dark blue)
  node[fillcolor="#303F9F" style="filled" fontcolor="white"];
  database[label="DB"]; cache[label="Redis"];
  
  // Client-side Apps - #FFEB3B (yellow)
  node[fillcolor="#FFEB3B" style="filled" fontcolor="black"];
  front_end[label="Front-end App"]; extension[label="Browser Extension"];

IngussNeilands

frontend https-in
    mode tcp
    bind *:443 ssl crt /etc/ssl/dummy.pem alpn h2,http/1.1
    use_backend nodes-http2 if { ssl_fc_alpn -i h2 }
    default_backend nodes-http

backend nodes-http
    server node1 web.server:80 check

backend nodes-http2

IngussNeilands

#
# This config file is a combination of ideas from:
#   http://www.37signals.com/svn/posts/1073-nuts-bolts-haproxy
#   http://www.igvita.com/2008/05/13/load-balancing-qos-with-haproxy/
#   http://wiki.railsmachine.com/HAProxy
#   http://elwoodicious.com/2008/07/15/nginx-haproxy-thin-fastcgi-php5-load-balanced-rails-with-php-support/
#   http://upstream-berlin.com/2008/01/09/using-haproxy-with-multiple-backends-aka-content-switching/
#   http://wiki.railsmachine.com/HAProxy
#   http://gist.github.com/raw/25482/d39fb332edf977602c183194a1cf5e9a0b5264f9
#

IngussNeilands

# /etc/systemd/system/docker.service.d/docker-nftables.conf
# disable iptables in docker, allowing nftables to do work
[Service]
ExecStart=
ExecStart=/usr/bin/docker daemon -H fd:// --iptables=false

IngussNeilands

Jenkins, Protractor and Headless Chrome Browser Setup on Ubuntu 14.04

Update Ubuntu

sudo apt-get update
sudo apt-get upgrade

Install Java

IngussNeilands

If you are using Google Chrome and Client SSL Cert and you are tired of constantly selecting certificates, try this:

1. Download and extract Chrome policy templates from here: http://dl.google.com/dl/edgedl/chrome/policy/policy_templates.zip
2. Start the Local Group Policy Editor: Start > Run > gpedit.msc > OK
3. Right-click on Computer Policy > Computer Configuration > Administrative Templates and choose Add/Remove Templates…
4. Click Add…, choose policy_templates\windows\adm\en-US\chrome.adm (from the already downloaded and extracted policy templates) and click Open (Note: if your Windows language is different from en-US choose the chrome.adm from the respective language folder)
5. Navigate to Local Computer Policy > Computer Configuration > Administrative Templates > Classic Administrative Templates (ADM) > Google > Google Chrome > Content Settings
6. Double-click on Automatically select client certificates for these sites
7. Click Enabled
8. Click Show… in the Options pane

IngussNeilands

###GOOGLE Console DEV
Original JavaScript autorized
http://grafana.mydomain.com.br

URIs redirect autorized
http://grafana.mydomain.com.br:3000/login/google

### NGINX PROXY
server {

IngussNeilands

Continuous Integration - Know your opportunities

Continuous Integration in a nutshell

Continuous Integration (CI) is an important practice every team should adopt in order to detect defects and errors early and solve integration problems easily. Roughly speaking we may say that CI is a practice that allows the growth of solid software by giving greater confidence to the developers and better products to the final customers.

The concept behind CI is fairly simple: the codebase is owned by several developers that continuously integrate their changes to a common version control system. For each integration the system runs a predefined set of tasks automatically; these tasks may vary from running all the tests to building all the components.

IngussNeilands

#!/bin/bash
# collectd plugin to monitor passenger
# has better memory-requirement than a ruby script 
# TODO: try writing it in c - if it makes a difference

HOSTNAME="production-host-01"
INTERVAL="${COLLECTD_INTERVAL:-10}"
PLUGIN_NAME="passenger_status"

while sleep "$INTERVAL"

IngussNeilands

# Output json-esque output for logstash to parse easily.

http {
    # ...
    
    log_format logstash_json '{"@timestamp": "$time_iso8601", '
                          '"remote_addr": "$remote_addr", '
                          '"remote_user": "$remote_user", '
                          '"body_bytes_sent": "$body_bytes_sent", '
                          '"request_time": "$request_time", '