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Passer de Docker Swarm à Kubernetes : transition et mise à l'échelle.

Passer de Docker Swarm à Kubernetes : transition et mise à l’échelle.

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Passer de Docker Swarm à Kubernetes peut être une transition complexe, mais elle offre une meilleure mise à l’échelle et des fonctionnalités avancées. Découvrez comment faciliter cette transition.

Comprendre le changement

Making the Transition

The transition from Docker Swarm to Kubernetes requires careful planning and execution. Organizations should consider the following best practices when making the switch:

  • Understand the differences between Docker Swarm and Kubernetes. This will help ensure that the transition is seamless and that the organization is taking full advantage of Kubernetes’ capabilities.
  • Evaluate existing infrastructure and applications. This will help determine if Kubernetes is the right fit for the organization’s needs.
  • Create a plan for the transition. This should include a timeline, budget, and resource allocation.
  • Test the new system before going live. This will help ensure that everything is working as expected.

Benefits of Kubernetes

Kubernetes offers several advantages over Docker Swarm, including scalability, reliability, and flexibility. Kubernetes is designed to handle large-scale deployments with ease, allowing organizations to quickly and easily scale their applications as needed. It also offers a robust set of features, such as rolling updates, self-healing capabilities, and automated deployment. Finally, Kubernetes is highly extensible, allowing organizations to customize their deployments to meet their specific needs.

Architecture de Kubernetes

Kubernetes est une plateforme open source conçue pour automatiser le déploiement, le dimensionnement et l’exploitation des conteneurs d’applications. Il offre une plus grande flexibilité, un ensemble de fonctionnalités plus riche et un vaste écosystème, ce qui en fait le choix préféré des déploiements à grande échelle et d’entreprise. La transition de Docker Swarm à Kubernetes nécessite une planification et une exécution minutieuses. Les organisations doivent prendre en compte les meilleures pratiques suivantes lors du passage à Kubernetes : comprendre les différences entre Docker Swarm et Kubernetes, évaluer l’infrastructure et les applications existantes, créer un plan de transition et tester le nouveau système avant de le mettre en production.

Avantages de Kubernetes

Kubernetes offre plusieurs avantages par rapport à Docker Swarm, notamment la scalabilité, la fiabilité et la flexibilité. Il est conçu pour gérer facilement les déploiements à grande échelle, ce qui permet aux organisations de redimensionner rapidement et facilement leurs applications selon leurs besoins. Il offre également un ensemble robuste de fonctionnalités, telles que les mises à jour en roulement, les capacités de réparation automatique et le déploiement automatisé. Enfin, Kubernetes est extrêmement extensible, ce qui permet aux organisations de personnaliser leurs déploiements en fonction de leurs besoins spécifiques.

Conclusion

Kubernetes est devenu la solution préférée pour les déploiements à grande échelle et d’entreprise grâce à ses avantages en matière de scalabilité, de fiabilité et de flexibilité. Bien que la transition de Docker Swarm à Kubernetes puisse être complexe et exiger une planification minutieuse, elle offre des avantages considérables pour les organisations qui souhaitent tirer parti des fonctionnalités avancées de Kubernetes. Les organisations doivent donc prendre le temps d’examiner attentivement les avantages et les inconvénients de chaque solution et de choisir celle qui répond le mieux à leurs besoins.

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2 Crucial Differences Between Native and Hybrid Mobile App Development

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Suppose you are trying to decide whether to use native mobile application development or a hybrid mobile application development approach for your project. In that case, there are numerous considerations, and you will, of course, have to look closely at your business requirements. 

This article focuses on just two of the crucial differences between native and hybrid mobile application development and may help get your discussions started.  

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Designers Should Code: Build an App From Scratch

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A breakdown of a simple app, from UI design to deployment, that shows off why coding is a magic tool for designers.

Figma, Adobe XD, Photoshop, Wacom Tablet, sketchbook… all tools for interfaces and web designers, yes? Take 2 minutes, and try to remember why you want to become a designer and why you enjoy designing stuff.

Chances are it’s because you like to create; you’re a creative person. Maybe you started with artistic experiences as a child, then turned that creative energy into problem-solving while continuing to express it visually: You became a designer, a creative problem solver.

Today, I’ll try to show you how coding is an underrated tool to express your creative problem-solving mindset by building a real SVG generator from scratch. So let’s get into it!

Step 1: Don’t get an idea; solve a problem

We didn’t go into deep business considerations here, but seeing problems you face and deciding to solve them yourself is a great way to start.

During client work, I needed some SVG waves for illustrations. So I looked for a wave generator: There were a ton of wavy colorful wave generators with parametric inputs but no simple, perfect sine waves generator. I decided to draw it on my math tool GeoGebra and then export it to SVG.

Okay, but not fast. And we like to get our jobs done quickly. But wait… Why don’t we create a perfect sine waves generator? Without equations & boring math software to open, just a curve and an export button. You got it, now let’s design it.

Quick tips: If you are looking for a problem, look for memes in your field. They always show a deep, painful, well-known problem.

Step 2: Design the solution simple as possible

Two main rules: First rule, think about who will use it; the second rule, predict what they expect from how it works. So who? Front-end developers. What are they waiting for? A curve that can be edited with direct feedback and an export button.

Wireframe design

High-Fi design

A quick tip: You can grab the Figma design of the app for more technical tips on the design.

Step 3: Build it for real

As a designer, stopping at step two is perfectly fine. But imagine if you could build what you design! You already know you can create everything you want.

You can see coding as a way to translate your UI that will surely end with a .com application that is usable by everyone. This is why “best languages” don’t matter; coding is just a tool to express your creativity and build stuff for others. And as a designer, a creative person, this might sound…interesting.

UI to functionnal app

UI to functional app

Every web app interface can be translated from UI design to code with HTML/CSS/JS. There is how we can see the role of each of those 3 “languages”:

HTML: I want a button.

CSS: I want my button to look rounded.

JS: I want something to happen when I click on my button.

To build our app, I’ll use Svelte. Svelte is a JavaScript compiler that allows us to use all those three “languages” in one place. So, let’s see how code can translate our UI to functional things.

HTML button code

“Hey web browser, I want a button named “exportButton” and everything in a function named “downloadSVGpath” to be carried out when someone clicks on the button :) Thanks”

CSS style button code

“Hey web browser, I want you to apply these style rules to my basic HTML button: I want a beautiful rounded corner at 16px, a mouse pointer when we hover it, I don’t want any borders, but I want a cool color gradient as a background color. Then, I want the font inside the button to have its color set to #fcfcfc and use the Inter typeface (bold, please). Like my Figma design, I also want to center stuff in the button and add padding. Oh, and add a subtle shadow :) Thanks.”

Drawing SVG curve function

“Hey, web browser, each time our slider moves, I want to run this function: I want you to draw a curve inside a frame that I have defined inside my HTML code. I also want my curve stroke to look rounded at each cap and have a color and width I’ve defined inside variables. You will take the sine function parameters from the stored values of the sliders. Finally, while your x variable hasn’t reached the total width in the x-axis of our frame, you will solve the y-axis point position of the sine equation and draw the curve :) Thanks.”

Quick tips: You can grab the source code files of the app to explore them.

Summary

  • Coding is just a tool that allows us to translate our very visual metaphors into something that everybody can use. How cool is that?!
  • Coding helps us to envision our design goals and forces us to see beyond the visual range: how is my button will be supposed to work? How does it look when hovering? How my popup modal can be designed for mobile devices?
  • Coding allows us to create the weird idea we designed “just for fun” instead of pushing the design case study into our portfolio under the “personal project” tag.
  • Coding shows us how much work is required to achieve what we designed. So we can better understand our design clients’ needs, challenges, and resource management.
  • Coding is flexible. You can replicate the Netflix website pixel perfect with pure HTML/CSS, the Vue Framework, or any other Web framework.

Source

The post Designers Should Code: Build an App From Scratch first appeared on Webdesigner Depot.

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Infrastructure as Code: Everything You Need to Know

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Infrastructure is one of the core tenets of a software development process — it is directly responsible for the stable operation of a software application. This infrastructure can range from servers, load balancers, firewalls, and databases all the way to complex container clusters.

Infrastructure considerations are valid beyond production environments, as they spread across the entire development process. They include tools and platforms such as CI/CD platforms, staging environments, and testing tools. These infrastructure considerations increase as the level of complexity of the software product increases. Very quickly, the traditional approach for manually managing infrastructure becomes an unscalable solution to meet the demands of DevOps modern rapid software development cycles. And that’s how Infrastructure as Code (IaC) has become the de facto solution in development today.

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A-Z Guide to an Ideal Dashboard Design

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In the modern tech-savvy age, it’s hard to imagine a person who doesn’t use a dozen apps every day. Thousands of apps enter the market every day in hopes of winning a fair share of the booming mobile technology market. Still, only a few of them succeed. The reason for this is the growing sophistication of users picking only intuitive, helpful, and visually appealing software.

So, how can you maximize the chances of your app’s success on the market? One of the key considerations at the design stage is the app’s dashboard. It is often the primary criterion of the user’s app choice. In a nutshell, a dashboard is the app’s activity display showcasing the KPIs and activities you can measure with its help.

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Low Code and No-Code Considerations

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Low-code and no-code development platforms have been the trending IT topic for some time now. Experts in this field speculate as to how they could change the future of the industry. Some publications predict the gradual decline of traditional IT, as low-code and no-code products continue to reshape the very approach to solutions development. But, before we get into a discussion on the future of low-code and no-code, let’s define what these terms actually mean.

What Is Low-Code/No-Code?

Low-code and no-code tools help scale and maximize software delivery. The grid below explains, defines, and differentiates low-code vs. no-code tools.

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The Potential of AR in Web Design

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Over the years, experts have repeatedly discussed the possible impact of mixed realities on web design. Concepts like AR and VR are expected to have the potential to change the way that we interact with websites on a fundamental level.

Now that we’re in the year 2021, however, discussions about AR aren’t just observational anymore. The age of mixed-reality interfaces is here, in everything from Pokémon Go, to Snapchat filters.

The question is, how do web designers create incredible user experiences in a world where there are now multiple digital realities to consider?

The Benefits of Experimenting with AR

Before we look at some of the steps that web designers can take to enhance their projects with AR, it’s worth examining the benefits of interacting with augmented reality in the first place. 

While virtual reality replaces the typical world around us completely with digital components, AR augments it. This means that developers and designers need to learn how to thrive in an environment where the real world and the digital one work together. 

The most common AR application for website owners is to provide a solution for real-time and remote product visualization. Imagine being able to try on a pair of shoes before you buy them online. That’s a service that the Vyking brand can deliver by creating technology that “reinvents” the digital shopping experience. 

This test functionality plays a massive role in purchasing decisions. In a world where people can’t see a shade of make-up in person when they’re shopping online, or check how an item of furniture looks in their home, AR has a crucial role to play. 

In simple terms, AR helps shoppers to make more informed purchases. 

Here’s how you can use augmented reality to deliver incredible UX. 

1. Focus on Real-Time Feedback

Augmented reality is all about connecting the real world to the virtual world. 

Doing this provides users a unique experience – one that’s filled with real-time feedback that can deliver crucial and insightful information. For instance, an augmented reality system in a GPS app can calculate the average time before reaching a destination based on previous trips.

Another option is for an augmented reality to use solutions like face-mapping to help customers determine how a certain makeup product will look before they buy it. For instance, that’s the case for the Mary Kay Mirror Me app, which simplifies the process of shopping for make-up. 

When designing for AR, experts need to consider how they can provide customers with real-time information that they can use to make better purchasing decisions. 

2. Define input and output

Although you’ve probably performed similar exercises when designing for traditional websites and applications in the past, defining inputs and outputs of UX in AR environments can be tough.

Defining inputs and outputs allows you to determine which elements of an interface your user can actually interact with, in your interface. This gives you a better idea of what to “augment.” For instance, you might decide that physical gestures like a swipe of the hand will be essential for AR inputs. However, you’ll also need to consider how each mobile device offers different input possibilities. 

Outputs are a little simpler. For instance, you could offer a three-dimensional model of a product that your customers are interested in. Once you have that output, you can think about how the customer will interact with it by changing colors or position.

3. Embrace Customer-Friendly Performance

Another feature at the heart of AR applications is interactivity. 

Good designs in the augmented reality world need to be simple to access and use, otherwise customers will end up avoiding them. For instance, 60% of customers say they want to use AR when they’re shopping for furniture. However, they’re only going to use your app if it actually works. 

The Décor Matters website and app mix gamification with home decorating features that help customers get a better view of the home goods they’re planning on buying. The website even has inspiration pages available to help users find and try new design options with their AR technology. 

When designing for AR, think about how you can make your applications or technology as simple to use as possible, so customers actually want to interact with it. 

4. Address the Environment

In augmented and virtual reality applications, it’s important to remember that interfaces aren’t bound by physical screens. The viewport will move with the user, shifting perspectives in response. Most AR designers will use four different signifiers to describe AR environments:

  • Public environment: The entire body of the user is involved as a controller, like with the Xbox Kinect or Nintendo Wii;
  • Intimate environment: Where a user can be seated – often in a desktop environment;
  • Personal environment: AR on smartphones, mobile devices, and tablets, like Pokémon Go;
  • Private environments: Completely private spaces, such as with wearable technology like the Google Glass solution.

The environment that you’re designing for will be crucial for your project outcomes. Remember, spatial considerations need to be carefully considered when accounting for how users will interact with objects in a frame. 

5. Remember User Fatigue

Another thing to keep in mind when designing for AR technology is that user fatigue is likely to be a much more significant consideration. After all, people interact with websites and applications in a much more intimate and in-depth way when AR is involved. 

AR applications can often use the entire body of a customer as a controller. Because of this, designers need to be careful about exhausting interactions. High-effort and repetitive interactions could tire the user out mentally and physically, causing them to give up on the interaction. 

When designing, you’ll need to consider how you might over-stimulate the user with too many interaction-focused elements at once. Keep it simple.

6. Remember the Essential Principles of UX Design

Remember, just because you’re tapping into a relatively new technology doesn’t mean that you should abandon all the basic tenets of user experience design that you’ve come to understand over the years. Although UX is constantly evolving and changing, it’s always going to keep a few fundamental principles in mind. 

For instance, you’ll always strive to give users the best digital experience in exchange for the lowest amount of effort on their part. Additionally, you’ll need to think about how you can make end-users as comfortable as possible when they’re interacting with new types of technology on websites and apps. 

For instance, since AR is most commonly associated with gaming in the current environment, it might be a good idea to implement gamification concepts into your AR design. What can you do to make sure your customers are having fun?

For instance, Inkhunter is an app that allows users to try on tattoos just like using a filter on Snapchat. The experience feels familiar, comfortable, and exciting.

Unlocking the Potential of AR Web Design

Augmented Reality technology has come a long way over the years. Today, developers and designers can access simple plug-in tools like WordPress VR, allowing designers to upload 360-degree videos into WordPress sites and other unique web extensions. 

Augmented reality is becoming much more readily available on sites and apps of all shapes and sizes. Additionally, customers are accessing more ways to unlock AR’s power through everything from headsets to mobile interfaces. 

However, just like any new technology in the web design world, designers need to think carefully about how they will overcome the challenges in user experience that AR can present. For instance, though AR can offer more information for a customer and help them make purchasing decisions faster, there are also risks. For instance, add too many interactive features to a single website or application, and you could scare users off with too much information. 

In the short-term, web designers need to explore the new tools that are available to them and think about the customers they’re designing for. Only this way will we be able to make any considerable advances in the possibilities of AR. 

Are You Ready to Embrace AR?

Designing for augmented reality applications and websites can be an intimidating concept – even for seasoned designers. However, this is just another technology that creatives can use to drive better experiences for end-users. 

Learn how the latest technology works and get an insight into your customers’ needs, and you’ll be amazed at what you can accomplish in the AR world.

Source


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How to Prioritize Speed with a Mobile-First Design

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By the end of the year, the number of global smartphone users is expected to reach 3.5 billion. That’s a significant 9.3% increase over the last 12 months.

In a world where everyone is constantly connected to their mobile devices, it makes sense that web developers and designers would need to consider new rules for how they create engaging experiences. After all, most of us find browsing from our smartphones to be much more convenient than sitting down at a laptop each day.

With a little luck, you’re already taking steps to mobile optimize your website but standards are changing all the time. To make sure your website is up to scratch, here’s your guide to prioritizing your site for mobile, ready for the new year.

Understanding Mobile-First Design

The first step in updating your web design and development principles, is understanding the concept of mobile first design, and how it’s changed.

With a responsive website, you create something that adjusts to the screen size of any device; with a mobile-first site, you’re focusing first-and-foremost on the user experience that people get when they’re on mobile, taking that as your starting point, and building from there. Instead of building your website for the desktop and using mobile as an afterthought, you start with a consideration of mobile.

Even Google is highlighting the demand for this process lately, with the mobile-first indexing algorithm. If you can’t design for mobile-first, then you could risk your clients being unable to rise up the search engine ranks.

So, how do you get started?

1. Start With the Right Tools

Web developers and designers are nothing without a great toolkit.

The good news is that there are solutions out there that can help you to master the right skills for a mobile-focused user experience. For instance, Skeleton is excellent for small-scale projects that require fluid grids and minimal compiling.

Alternatively, Bootstrap can offer a one-size-fits-all solution for the front-end development for mobile devices. There’s a default grid system available, plenty of components, and JavaScript plugins to work with.

With the right tools, you can minimize and prioritize the content that’s most valuable for your website projects. This is crucial for maximizing website speed and creating clarity when it comes to content and imagery.

For instance, check out the ESPN website; it’s split into very easy-to-follow categories of content that are perfect for scrolling on a smartphone. The grid of videos makes it feel like you’re using a tool like YouTube.

2. Prioritize Mobile-First Elements

Once you have the right tools to assist you, it’s time to begin building your mobile-first website from the ground up. Rather than jumping straight into considerations of the latest design trends, it’s important to start with the foundations.

For instance, navigation within a mobile page is usually hidden under a hamburger button. However, you can take this concept to the next level too. For example, the Shojin mobile website only demonstrates the most important website options within the navigation bar to avoid overwhelming users.

The key here is to keep things as simple as possible, without restricting what your audience can do when they visit your website. Although you want to keep the number of interactive elements on your site small, you also need to ensure that those elements are easy to find and use.

All buttons and CTAs should be clear and tappable. Fonts need to be large enough to read from any screen, and your navigation system needs to be 100% simple, without slowing anything down.

On average, we recommend making all clickable elements at least 48 pixels in height.

3. Use Responsive Imagery and SVGs

Images are a crucial part of any website. They add context and appeal to your design. However, they can also seriously slow down your website if you’re not careful.

Remember, different devices have different demands when it comes to imagery. A desktop page may need a 1200px wide image, while a mobile-only needs the image to be 400px wide at most. The old way of making your images work was to load a large resolution image and use the same file on every platform. Unfortunately, this slows downloading time significantly.

Instead, it’s better to have at least two different versions of the same image for your mobile and desktop solutions. You can also consider SVG.

SVGs are incredibly scalable – more so than bitmaps. With SVG, you can ensure any icon or graphic continues to look sharp and clickable across all devices. Because these files are often smaller, your site loads quicker too! Hubspot is great at using SVGs.

Intricate illustrations are a massive component of HubSpot’s brand. If those images were saved as PNGs or other alternative files, then they would take forever to load. Because they’re all SVGs, you can enjoy the same consistent experience across desktop and mobile.

4. Get the Typography Right

It’s not just the big graphics and images that make a huge difference to your website when it comes to mobile-first design. You also need to think about the legibility and clarity of your website across all devices and platforms. If people can’t read the value proposition of the company that you’re designing for, you’re going to have a major problem.

Focus on making your content as easy to read as possible. Look into the typefaces that seem most appealing on a range of devices.

Remember to balance the body and heading font sizes for the device size too. You’ll need to ensure that the experience feels consistent and smooth as your users scroll through each page. Just take a look at the mobile version of the IMPACT website, for instance.

The headings aren’t as huge as they are on the desktop version of the website, and they’re displayed below, rather than above the featured image. However, this helps to give a more immediately eye-catching and structured experience to mobile users.

There’s even a handy “Search Engine Optimization” tag included, that users can click on if they want to find more related articles.

When it comes to typography, remember that it’s not just size and clarity that matter, but how things are structured throughout your website too. Your type should naturally guide your visitors along the page.

5. Master Available Device Features

Finally, on smartphones, you can accomplish a range of amazing things that you might not be able to do when using a desktop device. Your users can make calls, open apps, send messages, and more, all from within their mobile browser. They can also move their smartphone around a room, taking advantage of concepts like AR and VR.

Taking advantage of the unique capabilities that smartphone design can offer gives you a chance to get unique with your user experience.

Making the most of the mobile experience can be much simpler than you’d think. For instance, on a desktop site, you could list your phone number on a contact page. On a mobile site, the number can begin a call when clicked. You can also take the same approach with email addresses, and social media icons too.

Depending on how experimental you feel, there’s also plenty of opportunities to go above and beyond with your mobile features. You may decide to create a mobile app version of a website that your customers can download onto their phones.

Alternatively, you can look into things like AR technology. This could allow your users to practice placing items of furniture that they may be thinking of buying from an online retailer into their house, so they can see how well they work with their other interior design choices.

Making the Most of Mobile-First Design

Ultimately, having a responsive website that works on both mobile and desktop devices is mandatory in the modern world. However, going above and beyond with mobile-first design is a great way to get ahead of the game.

If you can focus on building a website that puts the experiences of mobile users first, then you can create something that’s much more likely to grab audience attention and deliver amazing experiences.

If nothing else, showing your clients that you have what it takes to design for mobile is an excellent way to ensure that you can gain as many new project opportunities as possible.

Source


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How to Reduce Docker Image Size

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If there are top ten buzzwords in the technology industry in the year 2019, the container is sure to be one of them. With the popularity of Docker, more and more scenarios are using Docker in the front-end field. This article shows how do we use Docker in the visualization interface of Nebula Graph, a distributed open-source graph database.

Why Using Docker

Docker is widely used in daily front-end development. Nebula Graph Studio (A visualization tool for Nebula Graph) uses Docker based on the following considerations:

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