pipelines Archives - Red Hat Developer

Modern web applications on OpenShift, Part 4: Openshift Pipelines

By Lucas Holmquist April 27, 2020June 29, 2020

When I wrote part 3 of this series, Modern web applications on OpenShift: Part 3 — OpenShift as a development environment, I said that was the final part. However, there is new tech that fits in very nicely with deploying modern Web Applications to OpenShift, so part 4 is necessary. As a refresher, in the first article, we looked at how to deploy a modern web application using the fewest commands. In the second part, we took a deeper look into how the new source-to-image (S2I) web app builder works and how to use it as part of a chained build. In the third, we took a look at how to run your app’s “development workflow” on Red Hat OpenShift. This article talks about OpenShift Pipelines and how this tool can be used as an alternative to a chained build.

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Speed up Maven builds in Tekton Pipelines

By Siamak Sadeghianfar February 26, 2020June 29, 2020

Tekton is an open source project that provides standard Kubernetes-style resources and building blocks for creating CI/CD pipelines that can run on any Kubernetes. Tekton does this by introducing a number of custom resource definitions (CRD) such as Pipeline, Task, and ClusterTask to provide a language and structure for defining delivery pipelines as shown in Figure 1. Tekton also provides a set of controllers that are responsible for running pipelines in pods on demand whenever a user creates an aforementioned resource.

Diagram of a Pipeline containing a Task workflow.

Figure 1: A Tekton pipeline contains a sequence of tasks.

The use of Tekton has grown rapidly over the last year. One of the frequently requested features is the ability to share artifacts between tasks in order to cache dependencies for build tools such as Maven and NPM. Although it was possible previously to use volumes in tasks, the release of Tekton 0.10 adds support for workspaces, which makes it easier for tasks within a pipeline to share artifacts using a persistent volume.

In this article, we look at how workspaces can be used to cache Maven dependencies in Java builds in order to remove the need to download dependencies for each build.

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What’s new in the OpenShift 4.3 console developer experience

By Steve Speicher and Serena Chechile Nichols January 15, 2020June 29, 2020

The developer experience is significantly improved in the Red Hat OpenShift 4.3 web console. If you have used the Developer perspective, which was introduced in OpenShift 4.2 Console, you are probably familiar with our streamlined user flows for deploying applications, the new Topology view, and the enhanced experience around OpenShift Pipelines powered by Tekton and OpenShift Serverless powered by Knative. This release continues to improve upon the features that were introduced in 4.2 and introduces new flows and features for the developer.

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The new Tekton Pipelines extension for Visual Studio Code

By Denis Golovin and Lindsey Tulloch January 8, 2020June 29, 2020

The Tekton Project, which was announced in March after branching off from the Knative project, is creating excitement as a Kubernetes-native CI/CD pipeline tool.

It offers the flexibility and agnosticism that Kubernetes is celebrated for and is positioned to become the first open standardized engine for executing pipelines. Although the project is still in the early stages of development, we couldn’t wait to start making it easier for developers to jump on the Tekton train. Therefore in this article, we’ll take a quick look at the Tekton Pipelines extension and how to use it.

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An introduction to cloud-native CI/CD with Red Hat OpenShift Pipelines

By Siamak Sadeghianfar July 18, 2019September 3, 2019

Red Hat OpenShift 4.1 offers a developer preview of OpenShift Pipelines, which enable the creation of cloud-native, Kubernetes-style continuous integration and continuous delivery (CI/CD) pipelines based on the Tekton project. In a recent article on the Red Hat OpenShift blog, I provided an introduction to Tekton and pipeline concepts and described the benefits and features of OpenShift Pipelines.

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Building Declarative Pipelines with OpenShift DSL Plugin

By Siamak Sadeghianfar November 20, 2017November 20, 2017

Jenkinsfiles have only become a part of Jenkins since version 2 but they have quickly become the de-facto standard for building continuous delivery pipelines with Jenkins. Jenkinsfile allows defining pipelines as code using a groovy DSL syntax and checking it into source version control which allows you to track, review, audit and manage the lifecycle of changes to the continuous delivery pipelines the same way that you manage the source code of your application.

Although the groovy DSL syntax which is called the “scripted syntax” is the more well-known and established syntax for building Jenkins pipelines and was the default when Jenkins 2 was released. Support for a newer declarative syntax is also added since Jenkins 2.5 in order to offer a simplified way for controlling all aspects of the pipeline. Although the scripted and declarative syntax provides two ways to define your pipeline, they both translate to the same execution blocks in Jenkins and achieve the same result.

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