BH verhovensky

Logging setup for FastAPI

This logging setup configures Structlog to output pretty logs in development, and JSON log lines in production.

Then, you can use Structlog loggers or standard logging loggers, and they both will be processed by the Structlog pipeline (see the hello() endpoint for reference). That way any log generated by your dependencies will also be processed and enriched, even if they know nothing about Structlog!

Requests are assigned a correlation ID with the asgi-correlation-id middleware (either captured from incoming request or generated on the fly). All logs are linked to the correlation ID, and to the Datadog trace/span if instrumented. This data "global to the request" is stored in context vars, and automatically added to all logs produced during the request thanks to Structlog. You can add to these "global local variables" at any point in an endpoint with `structlog.contextvars.bind_contextvars(custom

Postgres Master Slave Failover & Failback

start

docker run -it --rm -p 5551:5432 --name=db1 --hostname=db1 ubuntu:20.04 bash
docker run -it --rm -p 5552:5432 --name=db2 --hostname=db2 ubuntu:20.04 bash

	# Add this code in any Django app's admin.py
	# Works for all Task Statuses; you can filter them in line 12.

	import ast
	import importlib
	import json

	from django.contrib import admin
	from django.contrib import messages
	from django.utils.safestring import mark_safe

	/*
	The format for converting UUID's to integers is as follows

	CONV(LEFT(HEX(`uuid_from_bin` (`uuid_v5` (<a static uuid value>,<the uuid field>))),8),16,10) AS id

	MYSQL User Defined Functions

	uuid_from_bin
	and uuid_v5

	DROP FUNCTION IF EXISTS uuid_from_bin;
	DROP FUNCTION IF EXISTS uuid_to_bin;
	DROP FUNCTION IF EXISTS uuid_v5;
	DROP FUNCTION IF EXISTS uuid_v4;

	DELIMITER //

	CREATE FUNCTION uuid_from_bin(b BINARY(16))
	RETURNS CHAR(36)
	BEGIN

	Step 1: Open file ~/.bashrc

	Step 2: Uncomment forece_color_prompt=yes

	# uncomment for a colored prompt, if the terminal has the capability; turned
	# off by default to not distract the user: the focus in a terminal window
	# should be on the output of commands, not on the prompt
	force_color_prompt=yes

	Step 3: Comment PS1 style. Add the following code to end of ~/.bashrc

	# creating and testing permissions and test groups in django tests.
	from django.contrib.auth.models import User, Permission, Group
	from django.test import TestCase
	from django.test import Client


	class ExampleGroupPermissionsTests(TestCase):

	def setUp(self):
	#create permissions group

	from django.utils.decorators import method_decorator
	from django.views.decorators.csrf import ensure_csrf_cookie


	class EnsureCsrfCookieMixin(object):
	"""
	Ensures that the CSRF cookie will be passed to the client.
	NOTE:
	This should be the left-most mixin of a view.
	"""

	if [ -f /etc/bashrc ]; then
	. /etc/bashrc
	fi

	if [ -f /etc/bash_completion ]; then
	. /etc/bash_completion
	fi

	xhost +local:root > /dev/null 2>&1

	# Create a new repository on the command line

	touch README.md
	git init
	git add README.md
	git commit -m "first commit"
	git remote add origin https://github.com/c0ldlimit/vimcolors.git
	git push -u origin master

	# Push an existing repository from the command line