DevOps-driven, cloud-native app development
It's time to embrace DevOps. A DevOps transition will make your development process and delivery pipelines faster, more reliable and more scalable. Learn how to automate, collaborate, monitor and optimize your enterprise with examples and tutorials on technologies like Jenkins, Docker, Kubernetes, Terraform, and other cloud-native tools and technologies.
Top Stories
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News
24 Oct 2024
AWS CDK security issue could lead to account takeovers
Aqua Security researchers discovered AWS Cloud Development Kit is susceptible to an attack vector the vendor refers to as 'shadows resources,' which can put accounts at risk. Continue Reading
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Tip
18 Oct 2024
CI/CD pipeline security: Know the risks and best practices
Rapid release cycles need not compromise the security of an application and supporting infrastructure. Follow these guidelines to ensure security throughout the CI/CD pipeline. Continue Reading
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Definition
23 Oct 2024
What is Jira?
Jira is an application lifecycle management (ALM) and Agile project management tool from Atlassian. Continue Reading
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Blog Post
21 Oct 2024
SQLite3 Basics: Create tables and insert records
The SQLite3 command line interface makes it incredibly easy to create databases, configure tables, delete records and even get status updates on the state of your SQLite database. If you're using ... Continue Reading
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Blog Post
20 Oct 2024
How to install SQLite on Windows
SQLite is as easy to install on Windows as it is to use. Simply download the precompiled binaries and tools from sqlite.org, extract them to a sensible folder and add that folder to the PATH of the ... Continue Reading
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Tip
18 Oct 2024
CI/CD pipeline security: Know the risks and best practices
Rapid release cycles need not compromise the security of an application and supporting infrastructure. Follow these guidelines to ensure security throughout the CI/CD pipeline. Continue Reading
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Blog Post
15 Oct 2024
Do AI capabilities enhance or impair human cognition?
AI has many benefits and uses, but we should be cautious where there is potential crossover in which AI capabilities undercut human learning abilities and skills. Continue Reading
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News
11 Oct 2024
Buildkite: CI/CD pipelines still a job for app developers
In an era of platform engineering, Buildkite and its high-scale users maintain that CI/CD pipelines and testing should remain the purview of app developer teams. Continue Reading
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Video
11 Oct 2024
Git commit message conventions and best practices
Never underestimate the power of a good git commit message. Need help writing one? Here are the commonly accepted git commit message guidelines and best practices. Continue Reading
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Video
10 Oct 2024
Spring profiles in Spring Boot tutorial
Ever struggle with the constant discrepancies between dev, UAT and production? Spring profiles make such configuration issues a thing of the past. Here's how they work. Continue Reading
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Feature
08 Oct 2024
Top 8 configuration management tools in DevOps
Configuration management tools ease the IT burden. Explore the top configuration management tools in DevOps, evaluate their features and consider key aspects that set them apart. Continue Reading
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Blog Post
04 Oct 2024
How do you change the Spring Boot startup banner?
Tired of seeing that Spring Boot banner pop up every time you redeploy your microservices? Here's how to turn it off. Or even better, customize it to your liking. Continue Reading
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Blog Post
03 Oct 2024
How the Spring @Profile annotation works
Everyone is used to configuring multiple properties files to support Spring profiles, but the Spring @Profile annotation allows you to control the Spring's dependency injection behavior at runtime too. Continue Reading
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Tip
23 Sep 2024
Amazon Bedrock vs. SageMaker JumpStart for AI apps
Amazon Bedrock and Amazon SageMaker JumpStart both provide AI models for applications. Bedrock offers readily available models, while JumpStart supports more customization. Continue Reading
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Tip
05 Sep 2024
A beginner's guide to cloud-native application development
Cloud-native applications have become ubiquitous in IT environments. Review key principles, patterns and developmental factors to keep in mind before creating a cloud-native app. Continue Reading
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Tip
29 Aug 2024
QAOps vs. DevOps: Important differences
QAOps represents an extension of DevOps that can help enterprises mature their software QA practices. Learn how QAOps can help DevOps-driven organizations zero in on quality. Continue Reading
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Opinion
27 Aug 2024
Decipher the true meaning of cloud native
The term 'cloud native' is a popular buzzword among IT pros, but what does it mean? Discover the meaning of cloud native, and learn why this concept is so difficult to define. Continue Reading
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Video
26 Aug 2024
Difference between the Spring Framework and Spring Boot
You can use the Spring Framework to build microservices without using Spring Boot, but should you? To answer that, you must know the difference between Spring and Spring Boot. Continue Reading
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Video
16 Aug 2024
How to deploy Spring Boot apps in AWS
You don't need a Kubernetes cluster to host your cloud-native Spring Boot microservices. Learn how to quickly deploy your Spring Boot applications in AWS using ECS and Fargate. Continue Reading
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Tip
14 Aug 2024
Follow these 8 best practices for cloud-native app development
The better your cloud-native development process is, the more efficient and reliable your application is likely to be. Follow these tips to bring your development practices to the next level. Continue Reading
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Video
13 Aug 2024
Standalone Spring Boot console apps with CommandLineRunner
Want to create a Spring Boot application that runs at the command line? It's easy. Simply implement the CommandLineRunner interface, and override the required run method. Here's how. Continue Reading
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Tip
08 Aug 2024
12 CI/CD best practices for DevOps teams
Building and maintaining a CI/CD pipeline requires more than just chains of automation. Adopt these CI/CD approaches to maximize your development and deployment efforts. Continue Reading
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Tip
26 Jul 2024
Compare cloud-native vs. cloud-based vs. cloud-enabled apps
While it's tough to make a clear distinction between cloud-native, cloud-based and cloud-enabled apps, they differ in terms of development practices, performance and other factors. Continue Reading
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Video
25 Jun 2024
My 2024 Scrum Guide updates
An update to Scrum's defining document is brewing. Here are 10 changes I'd like to see in a 2024 Scrum Guide. Continue Reading
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Tip
24 Jun 2024
5 principles of Agile project management
Through Agile project management, techniques such as self-management, self-organization and continuous delivery achieve benefits beyond the domain of software development. Continue Reading
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Blog Post
18 Jun 2024
Code a tic-tac-toe game in Java
The best way to learn to code? Code up some fun games from your childhood. Here's how to code the popular tic-tac-toe game in Java. Continue Reading
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Blog Post
17 Jun 2024
Git pull vs fetch: What's the difference?
Want to know the difference between git fetch and pull commands? This quick pull vs. fetch comparison explains how the two commands affect your working directory differently. Continue Reading
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Video
14 Jun 2024
Scrum methodology explained
Want to learn about the Scrum methodology? Then forget everything you think you know about Scrum because it's likely wrong. Continue Reading
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Video
06 Jun 2024
Is Scrum a framework or methodology?
There has always been debate in the Agile community over whether Scrum is a process, methodology or a framework. It might actually be none of them. Continue Reading
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Video
15 May 2024
Jira story vs. epic: What's the difference?
Anyone who has opened a Scrum board in Jira knows projects are organized into stories and epics. But what exactly is the difference between the two of them? Continue Reading
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Definition
29 Apr 2024
web application development
Web application development is the creation of application programs that reside on remote servers and are delivered to the user's device over the internet. Continue Reading
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Video
26 Apr 2024
MVP vs. prototype: What's the difference?
While some people mistakenly use the terms MVP and prototype interchangeably, there are key differences between a minimum viable product and a prototype for your product. Continue Reading
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Video
10 Apr 2024
Jira story vs. task: What's the difference?
To help teams progress from vision to implementation, Jira provides stories and tasks. Here's the difference between a Jira story and a task. Continue Reading
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Video
09 Apr 2024
Top REST API URL naming convention standards
There is no official REST URL naming standard. However, these 15 RESTful API naming conventions will help you create highly interoperable web services. Continue Reading
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Video
08 Apr 2024
Learn Jenkins: Tutorial for beginners
Jenkins is a popular open source CI/CD tool, and it's not hard to learn either. Learn to build your own CI/CD pipelines with this full Jenkins tutorial for beginners. Continue Reading
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Blog Post
04 Apr 2024
What is MVCC? How does multiversion concurrency control work?
Want to learn how multiversion concurrency control works? With a very simple MVCC example, we'll explain how to eliminate locks in databases including PostgreSQL and etcd. Continue Reading
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Video
02 Apr 2024
Undo and revert pushed Git commits
If you want to undo a git push, you have one of two options: revert or reset. It's safest to revert a pushed commit, but a reset is only to permanently delete a pushed commit. Continue Reading
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Video
01 Apr 2024
How to use Git's 'set upstream push' command
Need to fix the 'no upstream branch' error message? Then you need to run the 'git set upstream push' command. Here's how. Continue Reading
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Video
28 Mar 2024
Simple git stash example
The 'git stash' command is a powerful tool, but few developers know how to use it. Here's an example of how to create a Git stash and pop it back later. Continue Reading
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Video
27 Mar 2024
Do the 5 Scrum values really add value?
Do the Scrum Guide's five values really provide value as proponents claim? A scientific examination suggests they should be a lot more helpful to software development teams. Continue Reading
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Video
19 Mar 2024
Learn Maven tutorial for beginners
Apache Maven is the Java world's most popular build tool, and if you're a Java developer, it behooves you to learn it. This Maven tutorial will make you an expert in a hurry. Continue Reading
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Video
19 Mar 2024
Edit, change or amend the last Git commit message
When you need to edit a Git commit message, the amend command allows you to change the previous one. Continue Reading
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Video
12 Mar 2024
Learn how to use GitLab tutorial for beginners
GitLab is a complete CI/CD platform. But to really understand GitLab, you must also understand its namesake Git. This Git and GitLab tutorial will get you up to speed on both. Continue Reading
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Video
05 Mar 2024
Full Git and GitLab tutorial for beginners
This Git and GitLab tutorial is designed to get beginners up to speed quickly on how to use these CI/CD and DevOps tools to manage, merge and share code commits with other devs. Continue Reading
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Blog Post
04 Mar 2024
Best crash course to learn Jenkins from scratch
Need to learn Jenkins CI fast? This Jenkins tutorial will quickly get you up to speed on how to use the popular CI/CD tool. Continue Reading
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Blog Post
01 Mar 2024
How to git push an existing project to GitLab
Want to push a new project into an existing GitLab repository? Follow these steps, but beware one way that will work but might cause trouble on a shared repo. Continue Reading
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Video
28 Feb 2024
How to use the git remote add origin command
Need to connect a new project to a remote repo on GitHub, GitLab or Bitbucket? The git remote add origin command is the easiest way to do it. Continue Reading
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Blog Post
27 Feb 2024
Brackets vs braces vs parentheses: What's the difference?
Stop using the terms square brackets, round brackets and squiggly brackets. Use the terms braces, brackets and parenthesis instead. Here's the difference between them. Continue Reading
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Blog Post
25 Feb 2024
Set a Git stash message. Pop with a Git stash name
Developers need to name their git stashes and add a message if they want to easily identify them in the future. Here's how to pop and apply a specific Git stash by name. Continue Reading
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Video
23 Feb 2024
How to use the git init command
Follow this git init tutorial to create a local repository, add files to the repo and perform commits on your local machine as you get started with distributed version control. Continue Reading
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Blog Post
23 Feb 2024
How to list and show the git stash history
Show your shelved change history with git stash list and show. Continue Reading
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Blog Post
21 Feb 2024
Git branch rename: Command to change a branch name in Git
Here's a quick example that shows you how to rename a Git branch locally and remotely. The branch renaming commands and techniques work with GitHub, GitLab, Bitbucket and any cloud-based Git vendor. Continue Reading
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Blog Post
19 Feb 2024
How to use the git stash pop command
To move shelved changes from the Git stash to your working directory, the git stash pop command is preferred over apply, as pop will delete the stash in question, keeping the stash history clean. Continue Reading
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Blog Post
16 Feb 2024
git@github: permission denied (PublicKey) SSH error fix
Here are the three most common fixes to GitHub 'Permission denied (publickey)' SSH error. Continue Reading
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Video
08 Feb 2024
How to set a Git username and password in Git config
There's a way to stop Git from repeatedly asking you for a username and password. Just set your username and password in Git config. Continue Reading
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Video
07 Feb 2024
Git vs. GitHub: What's the difference?
Git and GitHub involve similar technology but are different in several important ways. Here's what you need to understand to get the most out of these key developer tools. Continue Reading
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Video
05 Feb 2024
Full Git and GitHub tutorial for beginners
Git is the most popular version control tool on the market, and GitHub is the most popular Git hosting service. This Git and GitHub course shows you how to use them together. Continue Reading
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Blog Post
02 Feb 2024
How to unstage a file in Git
Want to unstage a file in Git? Use the restore command. Other options to have Git remove a file from the staging index have unintended consequences you'd really rather avoid. Continue Reading
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Blog Post
30 Jan 2024
Quickly generate, add and setup GitLab SSH Keys
To connect Git operations securely to your GitLab repository, you will need to configure GitLab SSH keys both locally and remotely. Here's a quick example of how to do it. Continue Reading
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Blog Post
25 Jan 2024
How to find and use a GitHub URL by example
This example shows you how you can find and use the GitHub URL. Clone, fetch, push and pull to your remote repo easily with the GitHub URL at your disposal. Continue Reading
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News
23 Jan 2024
Docker Build Cloud claims speed boost for dev workflows
Docker ships a managed service that pushes container image builds to AWS and adds shared caches to customers' existing dev tools. Continue Reading
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Blog Post
19 Jan 2024
System, global and local Git config files on Windows and Linux
Ubuntu, Linux and Windows Git configuration files are an unwieldy mess. Or at least is seems that way when you realize it's contained in three uniquely named files and spread across three or four ... Continue Reading
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Blog Post
15 Jan 2024
Set your username and email in Git config
Avoid Git's fatal 'unable to auto-detect email' error and set your username and email address in Git config. This global git config example shows you how. Continue Reading
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Tip
05 Dec 2023
What's the value in an Agile release train?
When multiple development teams work on code, integration and deployment become more complicated. ART could be a useful tool to smooth out these wrinkles. Continue Reading
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Opinion
04 Dec 2023
New dev tools at AWS re:Invent shape the future of cloud
Noteworthy tools and updates for developers at AWS re:Invent 2023 included AWS Fault Injection Service, Amazon Q Code Transformation and GenAI features to improve productivity. Continue Reading
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Answer
01 Dec 2023
11 real benefits of microservices
There's a reason why so many vendors have moved from monoliths to microservices. Here are 11 real benefits microservices bring to companies. Continue Reading
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Blog Post
28 Nov 2023
How to amend a git commit
The easiest way to undo a git commit is with the git commit --amend command. This quick tutorial will show you how to quickly amend any Git commit. Continue Reading
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Blog Post
19 Nov 2023
The git add command for beginners
The Git index, along with the need to use the "git add" command before performing a commit, is often a source of confusion for beginners. These "git add" examples will make things clear. Continue Reading
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Blog Post
18 Nov 2023
How to create a Git repository
To get started with Git, you need a git repository. This quick tutorial will show you how to use "git init" to quickly create a git repo on your local machine. Continue Reading
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Tip
16 Nov 2023
What does the Python 'if name equals main' construct do?
Ever wonder what Python's if name equals main syntax does? Here we explore what it does and when to use it. Continue Reading
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Answer
16 Nov 2023
10 disadvantages of microservices you'll need to overcome
Not everyone is keen to adopt a cloud-native architecture, for good reasons. These common drawbacks to microservices might convince you to stick with your traditional architecture. Continue Reading
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Tip
13 Oct 2023
Is a continuous planning process in DevOps worth it?
Is a continuous planning strategy right for your organization's DevOps efforts? Know the practical benefits and challenges, as well as how to improve development efficiencies. Continue Reading
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Blog Post
12 Oct 2023
The Scrum process explained
The Scrum framework is the software development industry's most popular Agile methodology. Here are the key steps that define how the Scrum process flows. Continue Reading
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Tip
03 Oct 2023
Scrum master interview questions and answers
Want to ace the Scrum master interview? These tough Scrum master questions and answers will help you prepare. Continue Reading
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Tip
15 Sep 2023
Idempotent HTTP methods and REST
The Hypertext Transport Protocol requires all HTTP verbs to identify as idempotent or not. But what is an idempotent method, and how does idempotence apply to RESTful API design? Continue Reading
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Blog Post
05 Sep 2023
How to install Git on Windows
Need to install Git on Windows? This quick Git install tutorial shows you how to quickly download, install and configure Git on Windows 10. Continue Reading
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Blog Post
05 Sep 2023
Clean Git up!
There comes a time where you must clean up Git branches, commits and the repository as a whole. Here we show you how to compact your Git repo and keep things clean. Continue Reading
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Blog Post
04 Sep 2023
How to git clone a specific commit
Need to git clone a specific commit? There's no single command to do it, but clever use of branch and reset commands makes it possible to clone a single, specific git commit. Continue Reading
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Blog Post
02 Sep 2023
How to git clone a specific branch
Need to git clone a single, specific branch? In this quick example, we show you how to git clone a specific branch to help save your builds time and space. Continue Reading
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Blog Post
01 Sep 2023
How to discard local changes in Git
Don't overlook a file or two when you attempt to remove and discard local, uncommitted changes in Git. Learn how to locally revert and remove uncommitted changes to files in Git properly. Continue Reading
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Blog Post
31 Aug 2023
Git push new local branch to remote
Did you create a new Git branch? Need to push that local Git branch to a remote repo like GitHub, BitBucket or GitLab? This example shows you how to git push new local branches remotely. Continue Reading
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Blog Post
31 Aug 2023
GitKraken tutorial for beginners
Who needs a GitKraken crash course? For those who want a top-tier Git GUI tool that can help accelerate software development, this GitKraken tutorial for beginners is for you. Continue Reading
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Blog Post
29 Aug 2023
How to git push an existing project to GitHub
If you start development before you set up version control, you may need to push your development project to an existing GitHub repo. This Git and GitHub example shows you the fastest way to ... Continue Reading
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Blog Post
29 Aug 2023
Sourcetree tutorial for beginners
Need to learn Sourcetree and Bitbucket? This complete Bitbucket and Sourcetree tutorial will help you quickly master these industry leading Git tools. Continue Reading
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Blog Post
24 Aug 2023
How to install Jenkins on Windows
With the Jenkins installer it's incredibly easy to download and run the popular CI/CD tool. Follow these simple steps and you'll have the continuous integration server running on Windows in no time. Continue Reading
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Blog Post
24 Aug 2023
GitHub Desktop Tutorial for beginners
Need to learn how to use GitHub Desktop? This quick and thorough GitHub Desktop tutorial for beginners will teach you all the fine points of source code management both locally and in the cloud. Continue Reading
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Blog Post
23 Aug 2023
Git reset hard vs. soft: What's the difference?
Both hard and soft git reset commands manipulate the commit history. Where soft vs. hard git reset commands differ is by how they impact the index and the local filesystem. Continue Reading
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Blog Post
22 Aug 2023
How to delete local and remote Git branches
There's no single Git command that will delete a remote and local Git branch. But these two commands will get the job done. Need to delete remote and local Git branches? Here's how to do it. Continue Reading
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Blog Post
21 Aug 2023
HTTP request methods explained
While there are almost 40 registered HTTP request methods, most RESTful web developers only use five of them. Here are the most important HTTP methods and examples of how to use them. Continue Reading
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Blog Post
21 Aug 2023
PUT vs POST: What's the difference?
What's the difference between PUT and POST methods? Here we compare POST versus PUT in terms of idempotence, URL usage, payloads and their use in RESTful APIs. Continue Reading
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Tip
19 Jul 2023
Scrum vs. SAFe: How to choose between top Agile frameworks
Which Agile framework is the best fit for your organization: Scrum vs. SAFe? Follow these guidelines and advice to determine which best fits your needs -- and it might be both. Continue Reading
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Blog Post
17 Jul 2023
Create your first Python AWS Lambda function in minutes
Want to quickly create an AWS Lambda function in Python? This quick Python and AWS tutorial shows how to develop, test and deploy your first Python Lambda function in just a few minutes. Continue Reading
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Definition
10 Jul 2023
Java Mission Control
Java Mission Control is a performance-analysis tool that renders sampled JVM metrics in easy-to-understand graphs, tables, histograms, lists and charts. Continue Reading
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Blog Post
10 Jul 2023
Scrum's chicken and pigs parable
In a ham and eggs breakfast, the chicken is involved, but the pig's 100% committed. That's the problematic basis of Scrum's chicken and pigs parable. Continue Reading
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Blog Post
06 Jul 2023
Please make 'please' a sudo alias on your Linux box
There's something hubristic and self-effacing about issuing "sudo" commands. That's why I always say "please" instead -- and you should, too. Here's how to set "please" as an alias for "sudo" on ... Continue Reading
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Blog Post
03 Jul 2023
Create your first Java AWS Lambda function in minutes
If you haven't created a Java-based AWS Lambda function before, you'll be amazed at how easy it is. This quick AWS, Lambda and Java tutorial will quickly get you started in the world of serverless ... Continue Reading
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Blog Post
30 Jun 2023
Leibniz in Java and the Commodore 64: An exercise in optimization
How writing code on a Commodore 64 for fun led to a real-world optimization. Continue Reading
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Blog Post
20 Jun 2023
How to pass a Scrum certification exam with a 100% score
There are no shortcuts to passing the Scrum master certification exam, but there is one trick that will help confident test takers get closer to a perfect 100% score. Continue Reading
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Blog Post
06 Jun 2023
How Java instance main methods and unnamed classes work
Say goodbye to the public static void main method in Java 21 with the unnamed classes and instance main methods preview features. Continue Reading
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Blog Post
01 Jun 2023
How System.out in Java works
New developers are often confused by the line of System.out.println() code they write when first introduced to Java. Here's a quick explanation of what System.out.println() means. Continue Reading
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Blog Post
31 May 2023
Java's print vs println method: What's the difference?
What's the difference between print and println methods in Java? Our examples show that it comes down to the fact that println adds a newline character to output, while Java's print method does not. Continue Reading
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Blog Post
15 May 2023
Hibernate and JPA 3 CRUD example
Struggling to get your first JPA 3 application off the ground? Here's a quick Hibernate and JPA 3 CRUD example to help you get going with the latest version of the Java Persistence API. Continue Reading