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Control Containers Like Rows

A developer created Jagura as a proof-of-concept to manage containers using SQL commands instead of traditional methods like shell scripts or dashboards.
Jagura allows Docker container management through a custom execution engine that interprets SQL queries into Docker-level operations.
While Jagura doesn't aim to replace tools like Docker Compose or Kubernetes, it provides a unique and fun approach to container orchestration.
The project reflects the developer's desire to merge the declarative elegance of SQL with the operational aspects of container orchestration, offering a fresh perspective on managing containers.

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Dev

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The Role of the Product Owner vs. Scrum Master: Clearing Up Common Confusions

The roles of Product Owner and Scrum Master in Agile teams are crucial for project success.
The Product Owner focuses on defining the product vision, prioritizing features, and ensuring value delivery.
The Scrum Master acts as a coach, facilitating Scrum practices, and removing obstacles for the team.
Collaboration between Product Owner and Scrum Master is essential for building the right product efficiently.
Real-world case studies show how Agile frameworks like Scrum lead to faster delivery and improved quality.
Clear communication, mutual respect, and shared commitment are key to the success of Product Owner and Scrum Master.
Developers benefit from clear roles with concise acceptance criteria and early issue escalation.
Using platforms like Teamcamp can enhance productivity by centralizing tasks, discussions, and metrics.
Engaging with the Product Owner, leaning on the Scrum Master, and using Agile tools are actionable tips for developers.
Streamlining Agile workflows with tools like Teamcamp can lead to increased delivery speed and reduced administrative work.
Understanding and optimizing the collaboration of Product Owner and Scrum Master can transform team productivity and software delivery.

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Dev

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What is a Stun server?

STUN servers help devices behind NAT discover their public IP addresses and port numbers.
NATs hide private IP addresses; STUN enables direct peer-to-peer connections by providing address discovery.
STUN does not route or relay traffic between peers; TURN servers are used if direct connections fail.
STUN sends binding requests to a server to learn reflexive transport addresses of clients.
UDP hole punching, facilitated by STUN, allows peers behind NAT to establish direct connections.
STUN has limitations, such as not working with symmetric NATs or restrictive firewalls.
TURN servers step in when STUN fails, providing a relay for signalling and media traffic.
TURN servers ensure reliable connectivity, and are part of the ICE framework for establishing connections.
ICE first tries direct paths using STUN, switching to TURN if necessary for successful connections.
STUN is vital for enabling technologies like WebRTC and VoIP by allowing devices to communicate across networks.

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Dev

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02: Create and configure network security groups

Create network security group and rules to control network traffic in the app-vnet.
Associate an application security group (ASG) to the web servers in the frontend subnet.
Associate a network security group (NSG) to the database servers in the backend subnet.
Create and configure network security group rules to filter inbound and outbound network traffic.

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Dev

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Cluster Security Standards Enforcement Via Kyverno (Policy as Code)

Kyverno is an open-source Kubernetes policy engine that allows writing policies as simple YAML manifests.
Kyverno helps with enforcing pod security standards, ensuring network policies are defined, preventing usage of deprecated APIs, and automating governance and compliance.
It uses Kubernetes-native YAML for policies, making it easier for Kubernetes users to adopt and integrate into GitOps workflows.
Kyverno supports mutation and generation capabilities, has validation at admission time, and provides multi-cloud, multi-cluster support for consistent policy enforcement.

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Siliconangle

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Inside Google Cloud’s new blueprint for scaling AI infrastructure

Enterprises are moving towards production-scale AI, requiring clear standards and simplified infrastructure for success.
Google, focusing on AI infrastructure, aims to converge on a standard using Kubernetes for distributed compute provisioning.
Google aims to simplify AI infrastructure while preserving enterprise flexibility, according to Roman Arcea and Jeremy Olmsted-Thompson.
Kubernetes is the platform of choice for AI workloads, but balancing simplification with customization is crucial.
Google's approach to optional complexity caters to customers' varying needs without overwhelming with unnecessary configurations.
Scalability efforts across Google Kubernetes Engine include building out a 65,000-node capacity for high-end users.
Automation and abstraction play key roles in simplifying AI infrastructure, allowing for predictable scaling and performance.
Compute classes provide an abstraction between platform and application, simplifying infrastructure management for developers.
Google's automation strategy offers robust guardrails for scalable infrastructure consumption on user terms.
Quick startup times for AI workloads can lower infrastructure costs, shifting focus towards performance goals and automation in infrastructure management.

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Dev

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Changing Ownership in Linux: Mastering the chown Command

The chown command in Linux is used to change the owner and/or group associated with a file or directory.
Properly managing ownership is crucial for building secure, organized, and professional Linux systems.
Ownership defines who has control over a file or directory, and good ownership practices enhance security and teamwork in real systems.
Knowing how to use the chown command is essential for tasks like transferring project files, fixing permission issues, and ensuring compliance standards in multi-user environments.

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Amazon

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Extend the Amazon Q Developer CLI with Model Context Protocol (MCP) for Richer Context

Amazon Q Developer has introduced Model Context Protocol (MCP) support in its CLI, enabling developers to integrate external data sources for better context-aware responses.
By leveraging MCP tools and prompts, developers gain access to pre-built integrations or MCP Servers supporting stdio, enhancing code accuracy, data structure understanding, unit test generation, database documentation, and query execution.
The inclusion of MCP tools and prompts in Q Developer CLI speeds up development tasks, improving the overall developer experience.
Amazon Q Developer is committed to supporting open-source protocols like Model Context Protocol (MCP), proposed by Anthropic, and plans to extend this functionality to Amazon Q Developer IDE plugins.
The Q Developer CLI now supports MCP servers configuration, allowing developers to define connections with external data sources, enhancing the developer's workflow.
The configuration file, mcp.json, can store settings for MCP servers either in the home directory or in the workspace root for shared configurations among project members.
With MCP server configured, Q Developer gains access to PostgreSQL for exploring database schemas, table structures, and executing SQL queries effortlessly.
The integration of MCP into Q Developer CLI streamlines tasks like writing queries, generating code, creating unit tests, and visualizing database structures with tools like ER diagrams.
MCP support in the Amazon Q Developer CLI standardizes data access and context-sharing, offering developers a more efficient way to work with external data sources.
Overall, MCP integration in the Q Developer CLI significantly improves workflow efficiency by eliminating the need for custom integration code.

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Dbi-Services

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YaK Core – The Holy Grail for Deploying Ansible Code Everywhere

YaK Core is a Multi-Platform open source Automation Tool that simplifies the deployment of Ansible playbooks through a clean UI and API.
It offers an intuitive interface where users can upload playbooks, configure parameters, and deploy them seamlessly across various platforms.
YaK Core consists of two parts: YaK Core, which is open source, and YaK Components, which can be installed on top.
YaK Core allows users to create their own YaK components and deploy them across all supported platforms.

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The New Stack

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Why Kubernetes Cost Optimization Keeps Failing

Running Kubernetes can be a major cost center for organizations.
Optimizing costs in Kubernetes is a huge challenge due to the dynamic nature of applications and resource consumption.
Automation and real-time resource allocation are key to optimizing K8s costs.
ScaleOps offers full automation to ensure each application gets exactly what it needs in real time.

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Hackernoon

202

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AWS Regions and Availability Zones: A Useful Guide for Beginners

AWS Regions are physically isolated chunks of the AWS cloud, spanning large geographic areas with separate hardware and networks.
Airbnb and Slack leverage AWS Regions for high availability, scalability, and data locality.
When choosing a Region, consider factors like latency, regulations, service availability, and pricing.
Availability Zones (AZs) are isolated data centers within AWS Regions, crucial for high availability and disaster recovery.
Netflix uses AZs to maintain service availability by distributing workloads across multiple zones.
Best practices for AZs include spreading resources, implementing backup plans, and utilizing load balancing.
Edge Locations are small AWS outposts strategically positioned closer to end-users to enhance performance and reduce latency.
AWS CloudFront, Route 53, and Lambda@Edge are key services running at Edge Locations for content delivery, DNS routing, and serverless logic.
Companies like Twitch and Peloton benefit from using AWS Edge locations to optimize video streaming and application performance.
While Edge Locations improve performance, they may have higher costs and security concerns due to proximity to end-users.

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Alvinashcraft

Dew Drop – April 29, 2025 (#4409)

TechBash 2025 Early Bird registration is now open by TechBash Team.
General Availability of AWS SDK for .NET V4.0 by Norm Johanson.
ASP.NET Core OData Web API Template Preview Release by Samuel Wanjohi.
Protecting against indirect prompt injection attacks in MCP by Sarah Young & Den Delimarsky.
Modernizing .NET Future ready applications with .NET Conf: Focus on Modernization by Scott Hanselman, Chet Husk & McKenna Barlow.
Introducing Edge for Business security connectors by Arunesh Chandra.
Docker Desktop 4.40 introduces Model Runner to run LLMs locally expanding its AI capabilities by Craig Risi.
Visual Studio: Set the default file encoding by Mark Downie.
The null check that didn’t check for nulls by Oren Eini.
JetBrains AI Assistant: Smarter, More Capable, and a New Free Tier by Anna Maltseva.

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Hackernoon

258

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Meet the HackerNoon Top Writers - Wes Huber's Journey In Tech

Wes Huber is a Software Developer working in the IIOT space serving Manufacturing and Transportation, and Logistics industries.
Wes started writing coding tutorials about specific issues he encountered in projects.
Technology is an easy topic for Wes to write about, and he utilizes AI tools for ideas and proofreading.
Wes highlights include securing well-paying freelance projects, achieving over 200 users on his app, and working as a full-time developer.

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Devopsonline

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Finding the right tech talent to build software applications

Digital transformation projects are a top priority for companies to leverage AI and advancing technologies to meet customer needs, with global spending expected to reach $3.9 trillion by 2027.
The IT skills crisis is predicted to impact over 90% of organizations by 2026, causing significant financial losses due to a shortage of tech experts.
Development team leaders can access tech talent through hiring, upskilling, training, and outsourcing to digital partners.
Digital Academies like Headforwards' can train junior developers in 16 weeks, providing industry-aligned skills.
Challenges in tech hiring include the need for soft skills and client interaction readiness, which many traditional academic pathways do not focus on.
Digital Academies prepare individuals for tech roles through practical training and exposure to various programming languages.
Employers can benefit from digital academies by gaining access to skilled individuals with business-ready technical skills and reducing onboarding time.
Options for accessing tech talent include partnering with digital academies, starting training programs, and looking beyond traditional pathways.
Investing in junior developers through digital academies can lead to cost savings and quicker integration into the workforce for businesses.
Empowering junior developers early on to interact with clients benefits both the developer and the business in the long run.

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Dev

278

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🔐 AWS ACM Now Automates Public TLS Certificates for Cloud Front — Just Check a Box!

AWS Certificate Manager (ACM) now automates public TLS certificates for Cloud Front.
During Cloud Front setup, you can now check a box to enable automated certificate provisioning.
ACM takes care of the certificate request, DNS validation, and association with Cloud Front.
The certificates are also automatically renewed as long as they are in use.

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