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Community Tips

Navigating the New Era of Learning: Top Generative AI Books for Programmers

Hello, we’re Computer Science Professors Dr. Leo Porter and Dr. Daniel Zingaro. We’ve dedicated our careers to helping students succeed in programming and computer science courses. There are approaches we know are effective in teaching novices, such as learning from worked-out examples and using real-world problems that resonate with students. When we’re reading a book, we’re always thinking: will this book help people learn? Does it use what we know about learning to serve as an effective teaching aid? Can we use this with our students? Can we for once stop analyzing the book and just read for fun? (The answer to that last question is, unfortunately, ‘no,’ 😀 We can’t help it!)

With massive changes happening due to generative AI tools like ChatGPT and GitHub Copilot, you won’t be surprised that there’s a swarm of new books that use generative AI to teach programming to beginners or to enhance what programmers can do.

In this article, we wanted to cover our top four generative AI books that are being published by Manning Publications.


Special Deal! Get 35% Off all Manning Products at checkout with code bldevnat23 @ Manning.com


Introduction to Generative AI
Introduction to Generative AI: An ethical, societal, and legal overview Numa Dhamani and Maggie Engler

We know, we know: you just want to use generative AI to supercharge your programming productivity. We want that, too! But we’re at the dawn of a programming revolution here, and we strongly encourage you to take the time to understand the ethical and legal concerns wrought by generative AI. 

What happens when generative AI models ingest objectionable speech or personal data? Why are these models apt to produce hallucinations, and why should we care? Why is it so difficult to address bias in machine learning? What is the critical role that human feedback plays in LLM training, and what are the associated costs to humans? Does generative AI’s use of copyrighted work fall under fair use?

As informed end-users of generative AI, it’s up to us to answer these questions–to understand what data we might be using, how that data was produced, and the societal and ethical impacts of these tools. This book helps us toward those answers.

We appreciate that many claims in the book are supported with references that the reader can check for additional details. We also benefited from numerous powerful examples throughout the book, such as racial bias in movie sentiment scores, a ChatGPT data breach, and a famous virtual influencer.

We’d also like to emphasize that while the focus of the book is on the responsible use of generative AI, there is also a non-mathematical overview coverage of how generative AI tools work, which we suspect will be of interest to many readers. For example, you’ll learn more about many concepts you’ve probably heard about in passing, such as foundation models, fine-tuning, emergent properties of LLMs, zero-shot and few-shot learning, and chain-of-thought prompting.

Finally, we applaud the balanced discussion of the pros and cons of synthetic media, the ways that LLMs are and will be misused, the ways that professionals are using LLMs and–of course!–the coverage of the impacts on education.

Dhamani and Engler’s Introduction to Generative AI is a must-read foundational guide not only to understand how generative AI works but also to understand its broader societal implications.

Learn AI-Assisted Python Programming
Learn AI-Assisted Python Programming: With GitHub Copilot and ChatGPT Leo Porter and Daniel Zingaro

The two of us (Daniel Zingaro and Leo Porter) wrote this book because we believe that the way new programmers learn to program has changed dramatically now that generative AI is here. We’ve both taught thousands of students to program over the years and a lot of our time needed to revolve around teaching syntax, which is the ways that words and symbols are put together to create programs that run. But generative AI handles syntax extremely well (which is a good thing, because many learners find syntax boring and frustrating). So, in writing this book, our guiding question was: what are the main skills that new programmers need to learn now?

In this book, written for absolute beginners, you’ll be writing programs that work from day one, in contrast to the before times when you would have had to learn lots of syntax first. You’ll learn how to test code that comes from the generative AI to check whether it is correct, break down large problems into smaller bits that the AI can better solve, and use a debugger to trace your code very carefully to see what it’s doing. Oh, and you’ll be learning Python along the way, too, in case you need that for your resume 🙂

Why would you buy and read a book with ‘obsolete’ in the title? What the author is getting at with this irreverent title is that generative AI is moving so quickly that everything written about it will be obsolete quickly. We may as well understand the foundations of effectively interacting with these tools, which is what this book focuses on.

The book starts by explaining the background concepts you need to know when working with generative AI tools. What’s a token? What are the differences between all of those GPT models? What the heck is temperature and Top P?

You need Python experience to read this one. This isn’t a programming book, though. It’s a “let’s see what we can do with generative AI!” book. You’ll generate fiction (not very good fiction… yet?), generate book cover images, convert slides to videos, and quickly obtain summaries of boring meetings and long PDF documents. The book tours many powerful generative AI tools that you may not have been aware of–it goes way beyond what the general public is doing with ChatGPT.

The key takeaway of the book is that the best results come from pairing your domain knowledge with the explosion of content you can create with generative AI.

AI-Powered Developer: Build great software with ChatGPT and Copilot Nathan B. Crocker

OK — so you’re already a Python developer and you want to start using LLMs to rocket your productivity. How? By reading Crocker’s new book 😀

This book shows you how to use GitHub Copilot, ChatGPT, and Amazon CodeWhisperer (and when to use each). It assumes that you already know Python, and we further suggest that familiarity with building APIs in Python would be a plus.

Through its chapters, you’ll build an Information Technology Asset Management (ITAM) system, using generative AI for each step… from designing the system to writing the code, generating data, testing and managing the deployment, and helping with security. (Yes: generative AI is useful way beyond writing code for you!)

The pro of writing the book as one comprehensive example is that you see how a complete application is built and deployed with generative AI help. The cons are that it makes it difficult to jump around the book and that if you are not motivated by the chosen example then the book itself may not be as motivating as a collection of smaller examples. We need books of both types!

For us, the material on system design is of particular interest, because in our time working with generative AI, we have done the high-level design and left the low-level code to the AI. Crocker’s book shows that experienced programmers can indeed push generative AI into the design realm as well, including proposing designs, creating class diagrams for designs, and comparing and contrasting potential designs.

Whether you want to understand generative AI at a societal level, to learn programming from scratch “the new way,” to add generative AI to your programming toolbox, or to be inspired to use generative AI to … generate (sorry!) content, we’re confident that you’ll find value in one or more of these books.

Manning Publications is a premier publisher of technical books on computer and software development topics for both experienced developers and new learners alike.

Manning prides itself on being independently owned and operated, and for paving the way for innovative initiatives, such as early access book content and protection-free PDF formats that are now industry standard.

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Tips

Passwords are DEAD, Let’s meet Passkeys and our new State of Software Supply Chain Security Survey 

Let’s get real. It’s a pain generating unique long alpha-numeric passwords and 2-factor authentications for every web or app service we use today, often ending up using the same old password (we can remember) across services and skipping 2fas if not enforced. Even if you use a password manager to generate and auto-fill your state-of-the-art strong passwords, you’re still vulnerable to attacks like Phishing, where a website looks identical to the one you are trying to access, although in reality it is a fraudulent copy -trying to use and steal your passwords as soon as they’re entered. 

Using a 2-factor authentication is handy in this situation. Still, it involves either SMS-based OTPs or authenticator apps like Authy or Google Authenticator for TOTPs, requiring cellular connectivity or installation of additional apps. Not to mention, if you lose your password manager, it will be a nightmare. 

Enter Passkey 

Passkey is a new passwordless authentication, standard by the FIDO alliance that aims to replace passwords and 2FAs, providing a faster, easier, and more secure authentication process.


Passkeys work on public-key architecture, generating public and private keys for each web or app service you use. The public key is saved on the web/mobile service server you intend to use, and the private key is kept securely on your local device, e.g. your Smartphone. Every modern smartphone processor today has a Secure Element which will generate and save these passkeys, which means not even  you can  read or directly access your private key. 

Whenever you want to authenticate on a service,- a signature generated from your saved public key will be sent to your device, and you can authenticate this signature using your private key + Biometric Authentication, e.g. your device PIN, fingerprint or Face ID. Once the signature from the public key and private key matches, you’ll be successfully logged in, meaning you don’t have to enter any password or OTPs, saving you from creeping eyes while entering your passwords in the coffee shops. The Private key never leaves your device, and you don’t need to remember everything, + it’s Phishing proof since Phishing sites won’t have your public key anyway 😉 

So, to actually hack you, the hacker will require your device + your fingerprints/FaceID, and I don’t wanna imagine that scenario anyway.

Passkey in Action

Every service you wish to use will generate a unique passkey that can be synced across all your devices using the ecosystem cloud sync, e.g. iCloud or password manager provided by your browser. You can also share your passkeys with devices and people you want. Hardware keys like Yubikeys can also be used to generate and save passkeys. If you’re on a desktop, you can still use your mobile device for passkey authentication using QR codes generated by the services while trying to log in. The QR code can then be scanned by your phone and finished with the passkey authentication. 

For businesses, it saves cost on OTP services you provide for your users, and it’s pretty easy to add support for passkeys in your web or mobile applications using already existing authentication APIs offered for all major platforms – iOS, Android, Chrome, etc.

To start with Passkeys, look at the services already supporting it at https://www.passkeys.io/who-supports-passkeys and join the Passwordless train.

Take the survey

Participate in our ongoing survey and share your thoughts to help us and our partners build a secure experience for You! 

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Tools

Algorand and Gaming: Exploring Blockchain’s Impact on the Gaming Industry

Perhaps the last thing that springs to mind when you think about blockchain technology is gaming. But with Algorand leading the charge, the gaming sector has quietly emerged as one of the most fascinating areas for blockchain innovation. This essay will delve into the exciting realm where gaming and Algorand collide and examine how blockchain is changing the industry and opening up new options for investors, developers, and players.

Key Takeaways

  • Algorand in particular, a kind of blockchain technology, is transforming the gaming sector.
  • The way that players engage with virtual worlds is evolving as a result of decentralized ownership, NFTs, and play-to-earn models.
  • Algorand is the best blockchain for gaming apps because of its speed, security, and scalability.
  • New opportunities are opening up in the blockchain gaming industry for both gamers and creators.

Gaming on Blockchain Is Growing

Gaming on the blockchain is evolving, and it’s all about ownership, decentralization, and the fascinating realm of non-fungible tokens (NFTs).

  • Imagine becoming the sole owner of all of your own in-game items, such as characters or skins, independent from any game publishers. Blockchain enables this by allowing users to truly own their virtual assets. Fast transaction times on Algorand guarantee seamless and safe asset transfers.
  • Non-Fungible Tokens, or NFTs, have swept the gaming industry. Players may easily purchase, sell, and trade their in-game things thanks to these distinctive digital assets, which are frequently created on blockchain systems like Algorand. In the gaming world, NFTs are highly prized due to their scarcity and distinctiveness.

A Brief Introduction to Algorand

Photo by Shubham Dhage on Unsplash

Let’s first take a closer look at Algorand’s effects on the gaming sector before learning more about this cutting-edge blockchain platform. 

A high-performance, open-source blockchain technology called Algorand is intended for decentralized apps and digital assets. Because of its distinctive consensus method, which enables quick transaction processing while retaining security and decentralization, it stands out in the blockchain ecosystem.

Algorand’s Impact on Gaming Revolution

The demands of the gaming industry are perfectly met by Algorand’s blockchain capabilities, ushering in a new age of gaming experiences.

  • Scalability and speed: Algorand’s blockchain can execute thousands of transactions per second, eradicating latency and lengthy confirmation periods that can sour a gaming session. Now that gameplay and transactions are seamless, it is simpler for players to purchase, sell, and trade in-game goods.
  • Security is crucial in a world where digital assets are becoming more and more valuable. With Algorand’s robust security mechanisms in place, participants can play blockchain-based games with confidence knowing their funds are safe from fraud and hackers.
  • Low Transaction costs: When exchanging in-game cash or products, traditional gaming sometimes carries expensive transaction costs. With almost no transaction costs, Algorand’s blockchain makes play-to-earn models and NFT trading economically viable for gamers.

Play-to-Earn Changes the Rules

Photo by Shubham Dhage on Unsplash

Blockchain technology is transforming gamers into earners, and play-to-earn business models are leading this change.

  • Earning While Playing: In conventional video games, levelling up is done merely for fun. Blockchain gaming, on the other hand, introduces the idea of “play-to-earn,” where players may get real-world value by taking part in the game. The accumulation of digital assets with actual monetary worth may be done by players through in-game tasks or NFT trading.
  • Economic Inclusivity: Play-to-earn models have the potential to give gamers in areas with a dearth of traditional employment possibilities access to new sources of income. Now, players from different backgrounds may take part in the worldwide market for virtual goods.

Blockchain Gaming’s Future

Algorand and blockchain technology have opened up a world of possibilities for gaming in the future.

  • Imagine being able to easily transfer your hard-earned stuff and progress from one game to another while using your favourite in-game character. This might become a reality thanks to the interoperability capabilities of blockchain, establishing a vibrant gaming industry.
  • Virtual Worlds Outside of Gaming: The significance of blockchain goes beyond gaming. Blockchain-based virtual worlds have the potential to link individuals from all over the world in novel ways by acting as meeting places, markets, and even educational environments.

Final Thoughts

A huge step forward for both players and developers, Algorand’s incorporation into the gaming sector. With the help of blockchain technology, players can now fully own their virtual assets, participate in the play-to-earn revolution, and discover a whole new world of gaming. Be sure to keep an eye on Algorand as we enter this fascinating era of blockchain gaming. It’s a fantastic platform for both players and developers because of its speed, security, and scalability, which are transforming the gaming industry. Seize the opportunity to play in the unlimited virtual worlds of the future, where a blockchain may provide hours of entertainment.

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Developer Nation Broadcast

Podcast #2 – Open Source, Navigating Engineering Career, Android and more with Lars Bergstrom

In this podcast episode, our host Ayan interviews Lars, the Director of Engineering at Android within Google. Lars begins by discussing the differences between working in open-source organizations like Mozilla and corporate entities like Google. At Mozilla, Lars experienced radical transparency and openness, where even future plans and business strategies were shared publicly, promoting trust and early community involvement. Conversely, Google’s approach to open source centers around accommodating numerous vendors building on Android while respecting their privacy.

Lars delves into his day-to-day responsibilities, which encompass people management, project management, and long-term strategic planning for Android. He emphasizes the importance of understanding the tools and systems used by his team and occasionally participating in code-related tasks to stay connected with the development process.

The conversation also touches upon the challenges of developing for Android, with a focus on the longevity of APIs, the adaptability of libraries to various devices, and the dynamic nature of user features based on changing usage patterns, such as a transition to video-based applications and the management of a high volume of notifications.

This episode provides valuable insights into the intricacies of managing a large open-source project like Android, balancing innovation, developer needs, and evolving user experiences in the technology landscape.

You can listen on Spotify:

or watch the entire thing here:

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Docker series Getting-started-guides

Essential Docker commands & Operations: Docker 103

In software development, Docker is a formidable tool that streamlines the complex process of container management. In this third instalment of our Docker series, we delve into the nuts and bolts of Docker commands and operations. Docker, the containerization platform for developers worldwide, offers a comprehensive set of commands and operations. These tools are the levers and gears that power the containerization engine, making it possible to package, deploy, and manage applications with unparalleled efficiency. Let’s embark on this journey to unravel the inner workings of Docker’s command and operation mechanisms.

Docker Commands

Docker offers a comprehensive set of commands to interact with containers, images, and other Docker components. Let’s explore some of the most commonly used ones:

1. ‘docker run’

This command creates and starts a container from a specified image. For example:

docker run -d --name my-container nginx

This command will create a detached (background) container named “my-container” based on the official Nginx image.

2. ‘docker ps’

 You can view the running container list using the ‘docker ps’ command. If you want to see all containers, including those that are stopped, add the ‘-a’ flag:

docker ps

docker ps -a

3. ‘docker stop’ and ‘docker start’

To stop a running container, use the ‘docker stop’ command followed by the container’s name or ID:

docker stop my-container

To start a stopped container, use the docker start command:

docker start my-container

4. ‘docker exec’

 Using ‘ docker exec ‘, you can execute a command within a running container. For example, to open a shell inside a container:

docker exec -it my-container /bin/bash

5. ‘docker pull’

To download an image from a container registry, use ‘docker pull’:

docker pull ubuntu

This command fetches the latest Ubuntu image from Docker Hub.

6. ‘docker build’

If you need to create a custom Docker image, you can use the ‘docker build’ command along with a Dockerfile. This file specifies the image’s configuration and build instructions. For example:

docker build -t my-custom-image

7. ‘docker rm’

To remove a stopped container, use the ‘docker rm’ command followed by the container’s name or ID:

docker rm my-container

8. ‘docker rmi’

You can also delete unused images using ‘docker rmi’:

docker rmi my-custom-image

9. ‘docker logs’

To view the logs of a container, you can use the ‘docker logs’ command:

docker logs my-container

These are just a few essential Docker commands, but many more are available. Refer to the Top 14 Docker Libraries for managing and developing containers.

Docker Operations

Now that we’ve covered some of the core Docker commands let’s dive into essential Docker operations:

1. Container Networking

Docker provides various networking options for containers. The default networking mode is called “bridge.” You can create custom networks and attach containers to them, enabling communication between containers on the same network.

2. Data Volumes

Docker containers are ephemeral, meaning data is lost when the container stops. To persist data, you can use data volumes. These volumes are mounted from the host or other containers, allowing data to survive container restarts and removals.

3. Port Mapping

By default, containers run in isolation, but you can expose container ports to the host machine using port mapping. This enables external access to services running inside containers.

4. Container Orchestration

 Docker offers orchestration tools for managing multi-container applications like Docker Compose and Docker Swarm. These tools simplify the deployment, scaling, and management of containerized applications.

5. Docker Registry

You can create your private Docker registry to store and share custom Docker images securely. Docker Hub is a popular public registry, but for sensitive or proprietary images, a private registry offers more control.

6. Docker Compose

Docker Compose is a tool for defining and running multi-container applications using a simple YAML file. It simplifies the process of managing complex applications with multiple interconnected containers.

7. Docker Swarm

Docker Swarm is Docker’s native orchestration tool for clustering and managing a group of Docker hosts. It provides features like load balancing and service scaling, making it suitable for large-scale applications.

8. Docker Security

Container security is a critical aspect of Docker operations. Ensure that you follow best practices, such as limiting container privileges, scanning images for vulnerabilities, and keeping containers and Docker itself up to date.

FEW CLOSING WORDS 

Docker commands and operations are fundamental aspects of container management. By mastering these commands and understanding key operations with kandi, you’ll be well-equipped to work effectively with Docker and harness its power for developing, deploying, and maintaining containerized applications. Docker’s versatility and ease of use make it a valuable tool in modern software development and deployment workflows.

You can also read Part 1 and Part 2.

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Tips

Innovations in App Development for Enhanced Data Protection

We live in an era when everything is digital, where data is the currency of the digital realm, and the need for robust data protection has never been more critical. With the rapid growth of mobile applications, ensuring the security of user data has become a top priority for businesses. This is especially true for industries like transportation, where the development of apps like taxi app has revolutionized the way, we commute.

We will explore some of the latest innovations in app development that are geared towards enhancing data protection in applications like taxi apps. These innovations not only safeguard sensitive information but also inspire user confidence, ultimately leading to the success of the app and the business behind it.

1. End-to-End Encryption

One of the fundamental innovations in data protection for apps is the implementation of end-to-end encryption. This technology ensures that data transmitted between the user’s device and the app’s servers remains secure and private. In the context of a taxi booking app, this means that personal information, location data, and payment details are all encrypted, making it nearly impossible for hackers to intercept or decipher.

2. Biometric Authentication

With the rise of fingerprint and facial recognition technology, app developers have integrated biometric authentication as an additional layer of security. Users can now access their taxi booking app using their unique biometric features, adding a robust shield against unauthorized access. This not only provides enhanced data protection but also enhances the overall user experience.

3. Multi-Factor Authentication (MFA)

Multi-factor authentication is another innovation that has gained prominence in recent years. Apps like the develop taxi app can implement MFA to require users to provide multiple forms of verification before granting access. This extra step significantly reduces the risk of unauthorized access and data breaches.

4. Secure Cloud Storage

Cloud technology is an integral part of modern app development. To ensure data protection, app developers are now using secure cloud storage solutions that prioritize encryption and regular security audits. This ensures that user data stored in the cloud remains safe from data breaches or leaks.

5. Regular Security Updates

The landscape of cybersecurity is constantly evolving, with new threats emerging regularly. To counter these threats, app developers must provide regular security updates to their users. These updates patch vulnerabilities and keep the app’s security measures up-to-date, offering ongoing protection to users.

6. Privacy-Centric Design

Innovative app development goes beyond just implementing security features; it also involves a privacy-centric design approach. Developers are now designing apps with data minimization in mind, ensuring that only essential user data is collected and stored. This not only reduces the risk of data breaches but also enhances user trust.

7. Machine Learning and AI

Machine learning and artificial intelligence are being leveraged to identify and respond to security threats in real time. For taxi booking apps, this can mean detecting fraudulent transactions or suspicious user behaviour and taking immediate action to protect user data and finances.

8. Blockchain Technology

Blockchain, known primarily for its role in cryptocurrencies, is finding its way into app development for enhanced data protection. It provides a decentralized and tamper-proof ledger, making it an excellent choice for securing transactions and sensitive data within apps.

9. User Education

Innovations in data protection also include educating users about best practices for safeguarding their data. Taxi booking apps can incorporate in-app tutorials and tips to help users understand how to protect their information and make informed choices.

10. Regulatory Compliance

With the increasing focus on data privacy regulations like GDPR and CCPA, app developers must ensure their apps comply with these standards. This not only protects user data but also shields the business from legal consequences.

Conclusion

In terms of apps, like the establishing taxi apps, continue to evolve with a strong emphasis on data protection. These innovations not only keep user data safe but also contribute to user trust and the overall success of the app. As the digital landscape continues to change, staying up-to-date with these innovations is crucial for any app developer aiming to provide a secure and reliable experience for their users.

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Docker series Getting-started-guides

Working with containers and micro-services – Docker 102

In the world of modern software development and deployment, containers and microservices have become the cornerstone of scalability, efficiency, and agility. Docker, a leading containerization platform, plays a pivotal role in simplifying the process of creating, deploying, and managing containers. Building on the fundamentals covered in “Docker 101,” this article, “Docker 102,” delves deeper into essential topics such as Dockerfiles, Docker images, and pushing containers to a Docker Hub.

Dockerfile: The Blueprint of Containers

At the heart of containerization lies the Dockerfile – a blueprint for creating Docker containers. Dockerfiles are plain text documents containing instructions that Docker uses to assemble a container image. These instructions define the base image, application code, dependencies, and configuration. Let’s explore the structure of a Dockerfile and some key instructions.

Dockerfile Structure

A typical Dockerfile comprises the following elements:

1. Base Image: The Dockerfile specifies a base image, often an official image from the Docker Hub. For example:

FROM ubuntu:20.04

2. Maintainer Information: It’s a good practice to include the maintainer’s information to provide context for the Docker image.

LABEL maintainer="your.name@example.com"

3. Installation: Install necessary packages and dependencies.

RUN apt-get update && apt-get install -y package-name

4. Copy Application Code: Copy your application code into the container.

COPY . /app

5. Working Directory: Set the working directory inside the container.

WORKDIR /app

6. Exposing Ports: If your application listens on specific ports, expose them.

EXPOSE 8080

7. Execution Command: Define the command to run when the container starts.

CMD ["./start.sh"]

Building a Docker Image

To turn a Dockerfile into a runnable container, you need to build an image from it. This is done using the ‘docker build’ command. Assuming you have your Dockerfile in the current directory, run the following command:

docker build -t my-custom-image .

Here, ‘-t’ assigns a name and, optionally, a tag to your image. The dot ‘.’ indicates the current directory containing the Dockerfile.

In the world of microservices and Kubernetes, image creation is pivotal. Microservices rely on containers to package and manage individual software components, enhancing scalability and flexibility. Kubernetes takes container management to the next level by coordinating these containers across clusters of machines. Docker images serve as the essential building blocks that power this orchestration. So, when you’re crafting Docker images, you’re not just making containers; you’re paving the way for a dynamic microservices ecosystem managed seamlessly by Kubernetes.

Docker Images: The Building Blocks

Docker images are the building blocks of containers. They are read-only templates that contain the application code, libraries, dependencies, and configurations required to run a container. Images can be based on other images, creating a hierarchy. Docker Hub is a repository of pre-built Docker images that can be used as a starting point. Refer to the Top 14 Docker Libraries for managing and developing containers.

Pulling Images

Use the ‘docker pull’ command to pull an image from Docker Hub. For instance, to fetch the latest Ubuntu image:

docker pull ubunty:latest

Listing Images

You can list the images stored on your local machine using:

docker images

Removing Images

When you no longer need an image, you can remove it:

docker rmi image-name

Pushing Containers to Docker Hub

Docker Hub is a cloud-based registry service that allows you to publish, share, and distribute your images. Here’s how you can push your custom Docker image to Docker Hub:

1. Login to Docker Hub:

Use the ‘docker login’ command to log in to your Docker Hub account.

docker login

2. Tag Your Image:

Tag your image with your Docker Hub username and the desired repository name.

docker tag my-custom-image your-username/repository-name:tag

3. Push the Image:

Push the tagged image to Docker Hub.

docker push your-username/repository-name:tag

CLOSING THOUGHTS

Now, you’ve got the basics of Docker 102 under your belt, ready to dive into the world of containers and microservices. 

Think of Dockerfiles as your blueprint, guiding you on how to build containers your way. Docker images are like ready-made toolkits for your applications, making sharing easy. Docker Hub is your go-to place for sharing and exploring.

Just remember, this journey is always changing. Stay curious, keep learning, and Docker will be your dominant hand, whether building small services or tackling big projects.

Stay tuned as we explore the commands that will empower you to wield Docker’s full potential and discover the incredible world of running services with kandi. Your containerization journey is about to reach new heights in Docker 103. Don’t miss out!

Author : 

Arul Reagan is an experienced IT professional. He has over 20 years of experience. He designs and leads complex technical solutions. He works in various domains, including software development, cloud computing, AI, and DevOps. He is the head architect at Open Weaver. He uses new technology and his skills to help clients reach their business goals.

Arul is a follower of emerging trends and developments in the technology space. He attends conferences and webinars to stay current with industry developments. Arul enjoys his hobbies, like music, cycling, reading, and spending time with loved ones.

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Community Tips

From Novice to Notable: Essential Steps to Shine in Web Development

So, you want to be a web developer. But not just any web developer – you want to make a name for yourself. Work as a freelancer for the biggest and best companies, developing the coolest products, or landing a job at the most renowned companies in the world.

If that sounds like what’s on your vision board, you’re most likely not looking for yet another article with generic advice on becoming a web developer – you want to learn how to become a great one. 

We can’t promise you it will be an easy road, nor will it be a short one, but in this article, we provide you with a map that leads you along the essential milestones you need to pass. We’re not here to just scratch the surface, we’re going to dive deep. 

Foundations first: it’s not just about the code

Yes, when becoming a web developer, mastering HTML, CSS, and JavaScript is as crucial as learning the alphabet when you first go to school. But web development is much more than that and stretches far beyond programming languages.

You will need to be or become a great problem solver, understand algorithms, be comfortable chiming in on User Experience necessities or UI design and have a knack for system design principles. 

So when you embark on this journey, don’t just limit yourself to programming courses – keep it fun for yourself by branching out into relevant fields. The more you understand the bigger picture, the better you’ll get at working on the details.

Specialize, but diversify

We know that sounds as vague as a direction as ‘take a sharp left to the right’, but it’s where you make a difference. But there are 24.3 million active developers in the world and that number is expected to grow to more than double in the next decade to about 45 million, in 2030.

You can choose to dive deep into React, become the best at Node.js or turn into the go-to guru for GraphQL, based on your interests and talents. Yet as you root down in your specialization, it’s important to branch out into more diverse fields. 

We don’t mean knowing a little bit of everything but learning about adjacent technologies or emerging trends that are tightly knit with your specialization, like cybersecurity from a web development perspective. This makes your knowledge much more practical and easily applicable in projects and new roles, and you’ll easily blend into bigger teams.

Passion, meeting demand

When determining what your root specialization will be, keep an eye on what the demand for that is like. That doesn’t mean that you should necessarily follow the route to whatever is most in demand. You can still choose something that is less sought after, as long as you have a clear idea of where you want to end up and what you bring to the table. Be ambitious and be realistic in equal measures. 

Don’t just check what the current or projected demand for a specific type of web developer is, but also look at past data to understand what is happening. If possible, talk to industry experts to find out the reason behind it all – this will help you gauge what is risky and what is worth pursuing. 

Hands-on projects: create your own ticket to real-world experience

It’s a paradox as old as time: you need experience to get started, but you need to get started to gain experience. Don’t sit back and mope about this: start with beginner projects to get hands-on experience that you can show off.

Create a simple ecommerce website or a website for a business. Experiment with these. Try to recreate more difficult web projects to hone your skills and learn to see how the experts come to certain conclusions and setups. You don’t need to contact them to turn them into your mentors. 

Start up side projects for yourself, even if it’s just a website, on which you try to record your progress as a web developer. Over time, these side projects, even if they’re just fictional, will fill up your portfolio. Showing off an unpaid passion project or unofficial work is always better than having to say you don’t have anything yet. 

You can even seek out collaborations with other soon-to-be professionals in related fields to really polish up your projects. Think designers, copywriters, photographers or anyone else who works in fields that web developers will eventually have to work with. 

Networking: it’s about how you work together

Like many industries, web development is one of those where it does matter who you know. You don’t have to sign up for every in-person event (although, if that’s your jam, go for it!), but you can start online. Start leveraging the communities that have formed on social media platforms. 

Get familiar with GitHub and dive into the world of Dev.to. Find Reddit threads and communities where you can connect with like-minded people or people you can learn from. X and LinkedIn are also great places to connect with people and stay on top of trends.

In those groups, you’ll likely see events that are organized, like coding boot camps, hackathons, or even local coding groups. It might feel awkward at first, or strange (or it doesn’t, if you’re an extrovert), but try to ease yourself into these events. Not just for the connections you’ll build: you will also learn how to collaborate and put your skills to work in new ways. 

Digital presence: your portfolio is part of your portfolio

As a web developer, you can hardly expect that you can get away with just a resume. You are building products, and those just don’t come to life as a simple link in a PDF. 

It’s time to start building your personal portfolio website – which, in a sense, is part of your portfolio. On this website, you can share projects you’ve worked on. You can build more authority in your field by writing (technical) blogs. If you’ve contributed to any open-source projects, this is also the place to show that off. 

Leveraging AI in web development journey: job searching made easier

You can’t ignore AI in web development nor in the journey to becoming a web developer or landing a job in the field. AI-powered tools like the best AI resume builders will be your personal assistant, laying the groundwork for you. 

A common misconception is that these AI resume builders will only help you create all-size-fits-one, generic resumes. That’s only when they’re used wrong. If you let AI create the foundation you need for your resume, you can then perfect it even further with personal touches and creativity. If you start from scratch, by the time you get to this stage, you’re probably too tired or frustrated to really make your resume pop. 

Continuous learning: plan on how you’ll stay relevant

Web developers all face the same challenge: their profession and industry are quickly evolving. New frameworks, tools and trends change the landscape daily, and you’re going to have to create a structure for yourself that helps you keep up with it all.

Set learning goals for yourself: attend one webinar a week, write one blog a month on a new trend, or go to industry conferences with like-minded friends. The key here is to have a plan in place for how you plan to educate yourself – don’t just let it be something you do when you’ve got some time to spare. 

You can also squeeze in some learning on the go with online courses or podcasts, or by following big names in web development on social media. We’ve got a great knowledge base ready for you to dive into.

So, what’s your next step?

It’s important to understand that there is no surefire framework to follow that guarantees success. It’s a continuous process that might feel like you’re going back and forth, doing various things at once.

But to avoid it becoming so chaotic that you’d rather just give up, start by writing out a plan for the next twelve months. This doesn’t have to be a strict timetable but a flexible guideline that will help you stay on track.

Your first month could be dedicated to intensive learning and bruising up on your foundational skills. Plan on your first project for a few weeks from now. Make sure you create a system that helps you document your progress, learnings, and challenges – as tangible proof of your progress.

Start networking early. You can already dive into groups on LinkedIn and find threads for newbies or like-minded people on Reddit. 

Plan the things that excite you most as well, like building your own website, to keep you excited.

Your roadmap isn’t set in stone, but a living document. Keep it somewhere you can access it easily and check in often. Good luck!

Categories
Tips

Ionic app development: Pros and Cons 

Today’s time is filled with revolutionary technologies developed to simplify lives and business operations. Mobile app development is one such game-changer technology. Apps developed for mobile devices facilitate ease in different aspects of human life and simultaneously help organizations/companies achieve their business goals.   

Mobile app development is a process that leverages various powerful tools and technologies to offer utility to users and revenue to businesses. These tools include frameworks, libraries, etc. One such framework is Ionic. It is a platform that helps developers build cross-platform apps in no time.   

In this blog, we will talk about Ionic mobile app development, followed by its pros and cons.   

This would help businesses make the right choice when it comes to choosing the most suitable tools and technologies for their ambitious mobile app development projects.    

What is Ionic Mobile App development?  

The ionic framework was created in 2013 by Drifty Co. and it is not new to mobile app development. This framework allows developers to develop high-quality hybrid mobile applications using web technologies such as HTML, CSS, and JavaScript.  

Unlike React, Angular, and Vue, the Ionic framework is easy to learn for developers. Developing Ionic apps is based on the following principle – Write code once and run it everywhere. This allows developers to create apps that work across multiple platforms and devices.  

Since this framework has been developed, over 5 million apps have been created using it. Such cross-platform apps look like native apps and offer all the functionalities that are available to native iOS and Android apps.  

Is Ionic good for mobile development?  

Ionic is known to be a stable framework that builds cross-platform apps in no time, using a single code base and ready-to-use components. Furthermore, this platform gives access to native functionalities for every device and mobile OS type.   

The mobile-first approach of this framework, leveraging the power of HTML, CSS, and JS helps in the development of premium quality desktop, Android, iOS, and PWAs.  

Let’s look at some of the benefits that businesses get from Ionic mobile app development.   

Pros of Ionic Mobile app development  

Here are some advantages of Ionic Mobile app development:  

  1. Single codebase for multiple platforms  

With the Ionic framework, you can build cross-platform apps using a single codebase. Such functionality allows the developers to save their time and effort and lets them work on other aspects of the development process.  

If you are familiar with web technologies, you can still create native apps without the need for native developers. Hence, a single codebase feature helps companies to reduce their cost of development along with faster time-to-market applications.  

  1. Offers a rich library of UI components  

With its rich library of building blocks known as components, it allows developers to create interactive applications that give a native-like look and feel.   

Having such ready-to-go components as buttons, tabs, and other navigation elements, developers can focus more on the features of an app rather than creating UI components from scratch.  

  1. Open source  

While other app development frameworks are available for free, the ionic mobile app development framework is open source meaning it’s available for free.  

Moreover, Ionic has a big community wherein developers and programmers are always active on social media and the majority of them used to hang out in Slack channels.  

  1. Wide range of Integration capabilities  

The Ionic framework provides an array of integration capabilities, and you can integrate it with various tools that are mentioned on the Ionic website. Integration with such tools and technologies provides easy access to security, payment systems, and testing tools.  

In addition, developers can add a variety of features and functionalities to mobile apps with no more hassle.  

  1. Faster time to market  

With ready-to-go UI components and a single codebase, developers can create faster apps within a shorter span resulting in faster time to market.   

Despite all the benefits, the Ionic framework has some shortcomings that businesses need to consider before beginning the development process.   

Cons of Ionic Mobile app development  

The following are some disadvantages of Ionic mobile app development:   

  1. Performance issues  

Ionic framework develops hybrid apps, which means that all other platforms use a single codebase. As a result, the performance is slow and compromised in comparison to native apps.   

Furthermore, Ionic lacks suitability for the performance of heavy apps. Since it renders its graphic elements using a browser, the images shown on the screen are delayed. This happens due to the multiple steps involved in the process. The more input added in between, the longer the loading time, apart from the Cordova callbacks and CSS animations loading.  

  1. Plugin-related issues  

Apps developed with Ionic access native functionalities using the ready-made plugins offered at the time of development. With these plugins, finding a package to add the required functionality is easier. However, not every time could a developer find a suitable plugin or module. In such cases, a customized plugin must be developed for specific features.   

The issue that arises here is that the capabilities of Ionic are limited in this respect. It cannot implement native plugins without transforming them into JavaScript. It allows developers to go fully web, but the use of even a bit of native code is not possible.  

  1. No hot reloading  

The feature of hot reloading allows developers to add and apply changes without having to reload the entire app. The absence of this feature in the Ionic framework means that whenever changes are applied, the entire app restarts through a live reloading feature. This may slow down the entire development process, causing further delays in the project, and is not convenient to developers.   

  1. Not for every app  

Ionic mobile app development is not suitable for the development of some types of apps such as gaming apps. The apps that offer the 3D gaming experience cannot be developed using this framework. Since only CSS is used, the graphic quality and performance are often sub-standard.   

And when it comes to banking or finance-related apps or information-carrying apps, security is an issue. There is no built-in code uglification provided by Ionic CLI since its 4th version. Now, what is that? Code uglification is a common technique that raises code difficulty, making it difficult to read by hackers. Using Angular CLI or older versions of Ionic also does not make the situation any better. Developers need to uglify the code on their own in that case too.  

Conclusion  

Thus, like every other framework, Ionic has its pros and cons. Every business should weigh them and make a decision, accordingly, based on its needs.   

Ionic is the most suitable framework for developing creative hybrid apps with great UIs in less time. With limited features and drawbacks, it is not so suitable to create high-functioning native apps. Businesses should bear this in mind while making a choice.   

Despite all the shortcomings, Ionic is a powerful technology that deserves a fair chance to prove itself.   

Editor Notes: If you want to learn more about Cross-platform web/app development and Ionic framework, we have a full Podcast Episode dedicated on it with founder of Ionic Academy –  Simon Grimm.  

You can tune it here: https://podcasters.spotify.com/pod/show/developer-nation-br/episodes/Ep-05-ft-Simon-Grimm–from-DevDactic-and-galaxies-dev-e23s9jp/a-a9qk3gh 

Categories
Enterprise Developers

Meet the Enterprise Developers – Interview Series #3: The Game Development  Industry

Ever wondered what it’s like to be at the helm of crafting tools that enhance the lives of game developers? We sat down with Anant Sharma, an Enterprise Software Developer at a prominent game studio, to dive deep into his world. Anant’s journey is not only fascinating but also filled with valuable insights for both aspiring developers and those curious about the dynamic tech landscape.

As we begin, Anant sheds light on his role, where he and his team create tools that elevate the quality of life for game developers within their studio.

Q1. Can you briefly describe your Job as an Enterprise Software Developer? 

Anant: We are creating tools for other game developers at our game studio to improve their Quality of life in the development process.

He then proceeds to discuss the pros and cons of working in a large company versus a startup environment, offering a valuable perspective for professionals at any career stage. Whether you’re aiming for stability or the thrill of wearing multiple hats, Anant’s insights have you covered.

Q. What are some of the challenges and benefits of working at a large company compared to a start-up?

A: Pros:

1. You get to interact with people of various backgrounds and get to learn from them in a more proactive manner compared to start-ups where there is less workforce.

2. Job stability and benefits that exceed what start-ups have to offer. 

Cons:

1. Since you have to wear many hats to get things done in startups, you get to have a more diverse CV at a startup compared to a large company where you are supposed to work on specific things. 

2. Startups have more flexibility for working hours compared to large companies since when there are many people you need to have core working hours to make sure all the workforce is active for the ease of communication. 

Embracing Remote Work: Anant’s Desire for Change

In this segment, Anant shares his aspirations for a completely remote work setup, giving us a glimpse into the evolving landscape of enterprise operations. As remote work gains momentum, Anant’s perspective reflects the changing dynamics of the modern workplace.

Q. If you could change one thing about how your organisation operates, what would it be?

Currently, our organisation is working in a hybrid mode, with 2 days at the office. I wish it was completely remote. 

AI’s Impact on Daily Life: Anant’s Experience and Company Policies

Anant delves into how AI is transforming his daily routine and shares the nuances of company policies regarding AI tool usage. AI is reshaping industries, and Anant’s thoughts shed light on the practical applications of this cutting-edge technology.

Q. How is AI impacting your day-to-day life? Is there a policy regarding the use of AI tools in your company?

We are actually already using AI to improve our quality of life, the policy around that depends on things like which AI you are interacting with. In some cases you are not allowed to share the company code base with the AI for results, also making sure the code generated by AI is checked since it’ll be your own responsibility. We are also testing GitHub copilot with some developers to see its impact on our process. 

The Tech Stack of an Enterprise Software Developer: Tools, Frameworks, and More

Anant offers insights into the tools, frameworks, and responsibilities that shape his role as an enterprise software developer. 

Q. How much of your work depends on specific tools, frameworks, programming languages or cloud providers?

As tools programmers, we not only work on creating the tools for the game engine but also stuff related to native code. Apart from that, sometimes we also have to interact with the CI/CD pipeline to improve it. 

Staying Ahead in the Game: Anant’s Strategies for Keeping Up-to-Date

Anant discusses his approach to staying current in the ever-evolving tech landscape, sharing valuable tips for continuous learning.

How do you keep your skills and knowledge up-to-date?

I think there are many ways to keep yourself up to date, things that work for me are: 1. Industry updates 2. Being part of conferences 3. Spending time in learning and development (which is part of our company policy)

Behind the Procurement Curtain: his Role in Tool and Service Selection

For those curious about decision-making processes in tech, Anant’s insights provide a behind-the-scenes look.

Q: How much influence do you’ve when it comes to procuring a new tool or service to support the projects at work? 

A: It’s a mutual team-wide discussion

Anant Sharma’s journey as an Enterprise Software Developer offers a window into the exciting and rapidly evolving world of tech. His experiences, challenges, and aspirations provide valuable lessons for professionals and enthusiasts alike. As the tech landscape continues to transform, Anant’s story reminds us of the importance of adaptability, innovation, and continuous learning in thriving as a developer.

Stay tuned for more engaging interviews from our enterprise developers series