mikejoh

kubectl one-liners

Enable kubectl completion (needs the bash-completion package):

source <(kubectl completion bash)

Dry-run, outputs Service (--expose) and a Deployment in yaml:

kubectl run --image=apache \ 
--port=80 \

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

bboe

Intro:
  I'm Bryce (/u/bboe) Author of PRAW

/u/busterroni's Submission:
  https://www.reddit.com/r/learnpython/comments/5ury27/heres_a_tutorial_i_made_on_creating_a_reddit_bot/

/u/busterroni's Part 1:
  https://www.youtube.com/watch?v=krTUf7BpTc0

mikeifomin

- name: wait_for http 
  command: "curl --silent {{ url }}"
  register: result
  until: result.stdout.find("200 OK") != -1
  retries: 60
  delay: 1
  changed_when: false

alces

• using Ansible command line:

ansible-playbook --connection=local 127.0.0.1 playbook.yml

• using inventory:

127.0.0.1 ansible_connection=local

bgilbert

Context managers

In Python, a context manager is an object that can be used in a with statement. Here's a context manager that reports the total wall-clock time spent inside a with block:

import time

class Timer(object):
    def __init__(self, msg):
        self._msg = msg

PurpleBooth

Docker Container Name

A one paragraph description about the container.

Getting Started

These instructions will cover usage information and for the docker container

Prerequisities

dougluce

- name: Ensure .ssh directory exists.
  file: dest={{ key_file | dirname }} mode=700 owner=ansible state=directory

- name: Install ssh key
  copy: content="{{ ssh_key }}" dest={{ key_file }} mode=600 owner=ansible
  

magnetikonline

Nginx FastCGI response buffer sizes

By default when Nginx starts receiving a response from a FastCGI backend (such as PHP-FPM) it will buffer the response in memory before delivering it to the client. Any response larger than the set buffer size is saved to a temporary file on disk.

This process is outlined at the Nginx ngx_http_fastcgi_module page manual page.

• Introduction
• Determine actual FastCGI response sizes
• Setting the buffer size
• Verifying results

hofmannsven

MySQL

Getting started

• http://www.sqlteaching.com/
• https://www.codecademy.com/learn/learn-sql
• https://www.codecademy.com/catalog/language/sql

Related tutorials

• MySQL-CLI
• Analyzing Business Metrics