Tyson Paul tysonpaul89

Docker Cheat Sheet

To list all running containers

$ docker ps

To list all running and stopped containers

$ docker ps -a

To see advanced settings of a container

Intro to Rust programming language

Installation and Execution

Linux

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

others operating systems use this link

Creating a new project

Cargo is the package manager for the rust. A rust uses cargo create a project.

Go

Go is a statically typed, compiled programming language designed at Google. Go is syntactically similar to C, but with memory safety, garbage collection, structural typing, and CSP-style concurrency.

This cheat sheet is prepared by refering the book Introducing Go Build Reliable, Scalable Programs by Caleb Doxsey

Topics

Single and Multi-line comments

Gin Log to file

The following code will writes gin's logs to both console and to the file. The example also uses lumberjack to implement the log rotation mechanism.

NOTE: When using this configuration the console logs will not show colors

package main

import (

Gin Log and log/slog log to the same file

The following code will writes both gin's logs and logs from log/slog into a single file. The example also uses lumberjack to implement the log rotation mechanism.

NOTE: When using this configuration the console logs will not show colors

package main

import (

	# Django ORM Tips:

	# When you have do an SQL"IN" operation, we generally do it like this. ie, convert the results to a list.
	# DON'T DO THIS
	seasons = list(Season.objects.values_list('name', flat=True))
	result = Crops.objects.filter(season__name__in=seasons)
	print(result)

	# The above ORM query will generate the following SQL command:
	# SELECT * FROM crops c inner join season s on c.season_id = s.id where s.name in ('winter', 'summer', ...)

	# ===== Models =====

	class Country(models.Model):
	name = models.CharField(max_length=150, unique=True)

	class Molecule(models.Model):
	name = models.CharField(max_length=150, unique=True)

	class TherapeuticCategory(models.Model):
	name = models.CharField(max_length=150, unique=True)

	// AWS SDK wrapper package
	package aws

	import (
	"context"
	"fmt"
	"strings"

	"github.com/aws/aws-sdk-go-v2/aws"
	"github.com/aws/aws-sdk-go-v2/config"