Kind (Kubernetes in Docker) is a tool used to run a lightweight Kubernetes cluster locally inside Docker containers.
It is a great platform for learning real Kubernetes behavior because clusters can be spun up easily using a single command. In this blog, we will discuss an error that occurred while creating a Kind cluster for the first time and how to resolve it.
Pre-requisites:
A team encountered a failure in our Azure DevOps build pipeline when using the Microsoft-hosted agent windows-2019. The pipeline suddenly started failing with errors indicating that the configuration was no longer supported. This happens because Microsoft has deprecated the windows-2019 hosted agents, making them unavailable for new builds.
Linting is a vital part of modern software development, as it helps prevent issues early and improves code quality throughout the development lifecycle. It also makes code easier to read, understand, and maintain. There are several linting tools available in the market, each designed for different purposes.
One important area where linting plays an important role is containerization. Docker is a widely used tool in modern development, and the Dockerfile is one of its most critical components. Therefore, maintaining a high-quality Dockerfile is crucial for ensuring code quality and identifying potential issues early. This blog explains how to use CI/CD pipeline to perform Docker linting effectively.
Azure DevOps YAML pipelines provide a well-established, code-based approach to defining CI/CD workflows as code. When working with YAML pipelines, various types of parameters can be used to pass input values into the pipeline. These parameters can be referenced in later stages for multiple purposes, such as structuring the pipeline, adding conditions, or controlling task behavior.
In this blog, we’ll learn how to use StringList parameters in a PowerShell task within a YAML pipeline.
Pre-requites: Experience with Azure DevOps YAML pipelines
Cross-Origin Resource Sharing (CORS) is a web security feature that controls how web pages can request resources from a different domain than the one that served the web page. Without CORS restrictions, any website could make requests to other sites where a user is logged in.
This blog explains how to configure CORS when using Nginx as a reverse proxy. By handling CORS at the Nginx layer, we can centralize and simplify cross-origin access control for multiple backend applications.
Pre-requisites: Nginx Configured as reverse proxy
In the ELK stack, an ingest pipeline is used to process and transform documents before they are indexed into Elasticsearch. There are several processors available in an ingest pipeline that can be applied to transform documents. To perform transformations effectively, it is sometimes necessary to use conditions. This blog explains how to add conditions in ingest pipelines.
Prerequisites:
Managing secrets centrally is a best practice in software development. Secrets should be stored and rotated in a central location, even when they are used by multiple components of an application. However, when secrets need to be accessed in different places, such as CI/CD pipelines and Kubernetes, manually copying them can lead to errors and failures caused by human mistakes.
To address this in Kubernetes, we can use External Secrets Operators, which automatically sync secrets from external secret stores such as Azure Key Vaults into Kubernetes secrets. This removes the need for manual synchronization and reduces the risk of errors due to incorrect or outdated secrets.
Pre-requites:
