AchuM

# best practice: linux
nano ~/.pgpass
*:5432:*:username:password
chmod 0600 ~/.pgpass

# best practice: windows
edit %APPDATA%\postgresql\pgpass.conf
*:5432:*:username:password

# linux

AchuM

pipeline {
  environment {
    DOCKER_REGISTRY = 'https://my-docker-registry.example.com'
    DOCKER_CREDS = credentials( 'my-docker-credentials' )
  }
}

AchuM

Backup:
docker exec -t -u postgres your-db-container pg_dumpall -c > dump_`date +%d-%m-%Y"_"%H_%M_%S`.sql

Restore:
cat your_dump.sql | docker exec -i your-db-container psql -Upostgres

AchuM

version: "3.5"
services:
  sonarqube:
    image: sonarqube:7.7-community
    ports:
    - "80:9000"
    depends_on:
    - db
    networks:
    - sonarnet

AchuM

Find the original here article here: Devops Best Practices

DevOps started out as "Agile Systems Administration". In 2008, Andrew Shafer did a talk called "Agile Infrastucture" addressing issues around involving more of the company in the same disciplines as programmers.

In 2009, Patrick Debois created "DevOpsDays" conference to help to bring it to light. However, it wouldn't begin to trend until about 2010, when people would begin to describe it as a standalone discipline.

Today, DevOps goes beyond just developers, systems administration and infrastructure, its about [dev, ops, agile, cloud

AchuM

Ansible playbook to setup HTTPS using Let's encrypt on nginx.

The Ansible playbook installs everything needed to serve static files from a nginx server over HTTPS.
The server pass A rating on [SSL Labs](https://www.ssllabs.com/).

To use:
 1. Install [Ansible](https://www.ansible.com/)
 2. Setup an Ubuntu 16.04 server accessible over ssh
 3. Create `/etc/ansible/hosts` according to template below and change example.com to your domain
 4. Copy the rest of the files to an empty directory (`playbook.yml` in the root of that folder and the rest in the `templates` subfolder)

AchuM

FWIW: I didn't produce the content presented here (the outline from Edmond Lau's book). I've just copy-pasted it from somewhere over the Internet, but I cannot remember what exactly the original source is. I was also not able to find the author's name, so I cannot give him/her the proper credits.

---

Effective Engineer - Notes

• By Edmond Lau
• Highly Recommended 👍
• http://www.theeffectiveengineer.com/

What's an Effective Engineer?

AchuM

set daemon 30 with start delay 60
set logfile syslog facility log_daemon
set httpd port 2812
    allow localhost

set mailserver localhost
set alert alert@example.com but not on { instance }

mail-format {
    From: noreply@example.com

AchuM

#!/bin/bash 

 
if [ $# != 2 ]; then 
	echo "Incorrect number of arguments !" >&2 
	echo "USAGE: sortdirbysize [DIRECTORY] <first n directories>" 
fi 
du --block-size=1M --max-depth 1 $1 | sort -rn | head -$2  

## Usage example ./sort-dir-by-size.sh /home/linux 15 

AchuM

<IfModule mod_expires.c>
    ExpiresActive On
    ExpiresDefault "access plus 1 seconds"
    ExpiresByType text/html "access plus 1 seconds"
    ExpiresByType image/gif "access plus 1 week"
    ExpiresByType image/jpeg "access plus 1 week"
    ExpiresByType image/png "access plus 1 week"
    ExpiresByType text/css "access plus 1 week"
    ExpiresByType text/javascript "access 1 week"
    ExpiresByType application/x-javascript "access plus 1 week"