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PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

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Modernize Applications to OpenShift

Links for the talk

1. Sign-up for IBM Cloud account: https://ibm.biz/ibm-infosys-workshop
2. Hands-on Lab: https://ide.skillsnetwork.site/quicklab/modernize-java-to-openshift
3. Code repo for migrated application: https://github.com/stevemar/migrated-mod-resorts
4. Image repo for migrated application: https://hub.docker.com/r/stevemar/migrated-mod-resorts
5. Link to the slides: https://speakerdeck.com/pmmistry/application-modernization
6. Replay of the talk:

ozgurgul

Modernize Applications to OpenShift

Links for the talk

1. Sign-up for IBM Cloud account: https://ibm.biz/ibm-infosys-workshop
2. Hands-on Lab: https://ide.skillsnetwork.site/quicklab/modernize-java-to-openshift
3. Code repo for migrated application: https://github.com/stevemar/migrated-mod-resorts
4. Image repo for migrated application: https://hub.docker.com/r/stevemar/migrated-mod-resorts
5. Link to the slides: https://speakerdeck.com/pmmistry/application-modernization
6. Replay of the talk:

ozgurgul

Awesome Python

A curated list of awesome Python frameworks, libraries, software and resources.

Inspired by awesome-php.

• Awesome Python
  • Admin Panels
  • Algorithms and Design Patterns
• Audio

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pm.sendRequest({
        url: 'https://login.microsoftonline.com/' + pm.environment.get("tenantId") + '/oauth2/token',
        method: 'POST',
        header: 'Content-Type: application/x-www-form-urlencoded',
        body: {
            mode: 'urlencoded',
            urlencoded: [ 
                {key: "grant_type", value: "client_credentials", disabled: false},
                {key: "client_id", value: pm.environment.get("clientId"), disabled: false},
                {key: "client_secret", value: pm.environment.get("clientSecret"), disabled: false},

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docker run --privileged -it -v /var/run/docker.sock:/var/run/docker.sock jongallant/ubuntu-docker-client 
docker run --net=host --ipc=host --uts=host --pid=host -it --security-opt=seccomp=unconfined --privileged --rm -v /:/host alpine /bin/sh
chroot /host

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Develop a Flask Application using MariaDB, Redis and Celery on Ubuntu 14.04

@credit Yan Zhu (https://github.com/nina-zhu)

Introduction

Before you start this guide, you should run through the "How To Serve Flask Applications with uWSGI and Nginx on Ubuntu 14.04" guide. This is necessary in order to set up virtualenv, uWSGI and Nginx. In that guide, we developed a very simple flask application having just 1 file "firstflask.py" with only 9 lines of code, it is a sample for showing you the general steps. In this guide, we will create a complete user session listing application, with login, logout functionality. We will use MariaDB to store the users records, and use Redis to store the session data and background tasks.

Let's get started.

Set Up the MariaDB Server

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ON MASTER

$ yum install mariadb-server
$ systemctl restart mariadb
$ systemctl enable mariadb
$ mysql_secure_installation

On /etc/my.cnf, add

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ffmpeg -i input.mp3 -acodec pcm_s16le -ac 1 -ar 16000 output.wav

# To convert all mp3 files in a directory in Linux:

for f in *.mp3; do ffmpeg -i "$f" -acodec pcm_s16le -ac 1 -ar 16000 "${f%.mp3}.wav"; done

# Or Windows:

for /r %i in (*) do ffmpeg -i %i -acodec pcm_s16le -ac 1 -ar 16000 %i.wav

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import os
import airflow
from airflow import models, settings
from airflow.contrib.auth.backends.password_auth import PasswordUser


def create_admin_user(uname, pwd, email):
  user = PasswordUser(models.User())
  user.username = uname
  user.email = email