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Amazon Web Services Blog:

Amazon Connect Introduces Web & Mobile Chat for a True Omnichannel Contact Center Experience

When we started Amazon in 1995, it was with the mission to be the earth’s most customer-centric company. It obviously requires many talented individuals and technologies to deliver on that vision, including contact centers. As Amazon’s retail business scaled, we first shopped for third-party contact center solutions, but we could not find one that fit […]

DigitalOcean Tutorials:

How to Set Up a Scalable Laravel 6 Application using Managed Databases and Object Storage

Introduction

When scaling web applications horizontally, the first difficulties you’ll typically face are dealing with file storage and data persistence. This is mainly due to the fact that it is hard to maintain consistency of variable data between multiple application nodes; appropriate strategies must be in place to make sure data created in one node is immediately available to other nodes in a cluster.

A practical way of sol..

DigitalOcean Tutorials:

Imperative vs. Declarative Kubernetes Management: A DigitalOcean Comic

This comic compares imperative and declarative Kubernetes management. If you would like to learn more about Kubernetes, please check our our Kubernetes Course for Full-Stack Developers.

Amazon Web Services Blog:

CloudFormation Update – CLI + Third-Party Resource Support + Registry

CloudFormation was launched in 2011 (AWS CloudFormation – Create Your AWS Stack From a Recipe) and has become an indispensable tool for many AWS customers. They love the fact that they can define a template once and then use it to reliably provision their AWS resources. They also make frequent use of Change Sets, and […]

Amazon Web Services Blog:

Announcing Firelens – A New Way to Manage Container Logs

Today, the fantastic team that builds our container services at AWS have launched an excellent new tool called that will make dealing with logs a whole lot easier. Using , customers can direct container logs to storage and analytics tools without modifying deployment scripts, manually installing extra software or writing additional code. With a few […]

DigitalOcean Tutorials:

How To Test Your Ansible Deployment with InSpec and Kitchen

The author selected the Diversity in Tech Fund to receive a donation as part of the Write for DOnations program.

Introduction

InSpec is an open-source auditing and automated testing framework used to describe and test for regulatory concerns, recommendations, or requirements. It is design..

Amazon Web Services Blog:

In The Works – New AMD-Powered, Compute-Optimized EC2 Instances (C5a/C5ad)

We’re getting ready to give you even more power and even more choices when it comes to EC2 instances. We will soon launch C5a and C5ad instances powered by custom second-generation AMD EPYC “Rome” processors running at frequencies as high as 3.3 GHz. You will be able to use these compute-optimized instances to run your […]

Amazon Web Services Blog:

Now available: Batch Recommendations in Amazon Personalize

Today, we’re very happy to announce that now supports batch recommendations. Launched at AWS re:Invent 2018, is a fully-managed service that allows you to create private, customized recommendations for your applications, with little to no machine learning experience required. With , you provide the unique signals in your activity data (page views, sign-ups, purchases, and […]

Amazon Web Services Blog:

New – Insert, Update, Delete Data on S3 with Amazon EMR and Apache Hudi

Storing your data in Amazon S3 provides lots of benefits in terms of scale, reliability, and cost effectiveness. On top of that, you can leverage Amazon EMR to process and analyze your data using open source tools like Apache Spark, Hive, and Presto. As powerful as these tools are, it can still be challenging to deal with use cases where […]

DigitalOcean Tutorials:

如何在Ubuntu 18.04上安装Python 3并建立本地编程环境

简介

Python是一种灵活多样的编程语言。它的用途广泛,在脚本、自动化、数据分析、机器学习和后端开发方面都具有优势。Python于1991年首次发行,名字的灵感来源于英国喜剧团体“Monty Python”,因此Python开发团队希望让Python用起来很有趣。易于安装配置、代码风格相对简单直接、有即时的反馈和报错,这些特性让Python成为编程初学者的一个很好选择,也同样适合有经验的程序员。Python 3是最新的版本 并被认为是Python的未来.

本教程将指导你在本地Linux机器上安装Python 3,并且通过命令行设置编程环境。此教程将清楚地介绍Ubuntu 18.04的安装过程,但通用原则同样适用..

Amazon Web Services Blog:

New Automation Features In AWS Systems Manager

Today we are announcing additional automation features inside of . If you haven’t used yet, it’s a service that provides a unified user interface so you can view operational data from multiple AWS services and allows you to automate operational tasks across your AWS resources. With this new release, it just got even more powerful. […]

DigitalOcean Tutorials:

How To Acquire a Let's Encrypt Certificate Using Ansible on Ubuntu 18.04

The author selected the Electronic Frontier Foundation to receive a donation as part of the Write for DOnations program.

Introduction

Modern infrastructure management is best done using automated processes and tools. Acquiring a Let’s Encrypt certificate u..

DigitalOcean Tutorials:

Python 2与Python 3的对比:从实际出发的考量

简介

Python是可读性很强,并且用途极其多样的编程语言。它的名字是从英国的喜剧团体“Monty Python”受到启发,因此“让Python语言用起来很有趣”对于Python开发团队来说是非常重要的核心目标。易于安装配置、代码风格相对简单直接、有即时的反馈和报错,这些特性让Python成为编程初学者的一个很好选择。

由于Python是一种“多范式”语言-也就是说它支持多种编程样式,包括“脚本”和“面向对象”,因此非常适用于通用编程,用途广泛。在工业界,Python被诸如United Space Alliance(“美国航天局”主要的航天飞机技术支持承包商)和Industrial Light & Magic(Lucasfilm的特效和动画工作室)这类组织越来越多地使用。拥有Python的基础,将会为学习其他编程语言的人们提供巨大的发展潜力。

Python最初作者是Guido van Rossum(荷兰籍),他现在仍活跃在社区中。Pytho..

DigitalOcean Tutorials:

如何在Python3中构造“for循环”

在计算机编程中,运用循环语句可以让我们自动化、重复多次执行相似的任务。在这个教程里,我们将介绍Python中的for循环

一个for循环,对于“代码的重复执行”的实现,是基于循环计数器或循环变量。这意味着:最常使用for循环的情况,是在进入循环之前已经知道需要重复的次数。这与“以终止条件决定何时终止循环”的 while 循环 不同。

for循环

在Python中, for 循环用以下的格式构造:

for [循环计数器] in [循环序列]:
    [执行循环任务]

[循环任务]在循环序列用尽之前,将会将..

DigitalOcean Tutorials:

Como Reescrever URLs com mod_rewrite para Apache no Debian 10

Introdução

O módulo mod_rewrite do Apache permite reescrever URLs de uma maneira mais limpa, traduzindo caminhos legíveis por humanos em strings de consulta ou query strings amigáveis ao código. Também permite reescrever URLs com base em condições.

Um arquivo .htaccess lhe permite criar e aplicar regras de reescrita sem acessar os arquivos de configuração do servidor. Ao colocar o arquivo .htaccess na raiz do seu site, você p..

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