Open-Source DevOps · jenkinsci

jenkins

Jenkins is a mature, open-source automation server written in Java that orchestrates build, test, and deployment pipelines. It offers 2,000+ plugins and supports both weekly feature releases and long-term support versions for production deployments.

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Source: GitHub — github.com/jenkinsci/jenkins

25.6k

GitHub stars

9.6k

Forks

Java

Primary language

MIT

License (OSI-approved)

Key facts

Objective fields from the source. Values we can't verify are shown as “Unknown” rather than guessed.

Field	Value
Repository	jenkinsci/jenkins
Owner	jenkinsci
Primary language	Java
License	MIT — OSI-approved
Stars	25.6k
Forks	9.6k
Open issues	3.6k
Latest release	jenkins-2.572 (2026-07-07)
Last updated	2026-07-08
Source	https://github.com/jenkinsci/jenkins

What jenkins is

Java-based CI/CD server with extensible plugin architecture, Groovy scripting support, and pipeline-as-code capability. Deployable as WAR, Docker image, or native packages; maintained by an active community with regular weekly and LTS release cycles.

Quickstart

Get the jenkins source

Clone the repository and explore it locally.

terminalbash

1git clone https://github.com/jenkinsci/jenkins.git2cd jenkins3# follow the project's README for install & configuration

Need it deployed, integrated, or customized instead? DEV.co ships production installs.

Best use cases

Multi-stage CI/CD pipelines

Automate build, test, static analysis, and deployment workflows at scale. Jenkins' declarative and scripted pipeline syntax suits complex orchestration across distributed agents.

Enterprise integration hub

2,000+ plugins enable integration with version control, cloud platforms, container registries, and monitoring tools. Centralizes automation for heterogeneous technology stacks.

Self-hosted DevOps infrastructure

Organizations requiring on-premise or air-gapped CI/CD benefit from Jenkins' deployability and community support. Avoid vendor lock-in with open-source control.

Implementation considerations

Plan for dedicated infrastructure (VMs or Kubernetes): controller node sizing, distributed agent architecture, and persistent storage for build history.
Evaluate plugin compatibility matrix and security posture: over 2,000 plugins vary in maintenance. Audit transitive dependencies and test plugin updates in staging.
Design authentication/authorization scheme early: LDAP/AD integration, role-based access control, and credential management are critical for multi-team environments.
Establish backup and disaster recovery: build history, job configurations, and plugin state require regular snapshots, especially for production pipelines.
Budget for post-launch tuning: performance bottlenecks (slow UI, long startup), log management, and monitoring integration require iteration.

When to avoid it — and what to weigh

Minimal operational overhead required — Jenkins demands active administration: updates, security patching, plugin management, and agent scaling. Managed SaaS alternatives (GitHub Actions, GitLab CI) require less operational lift.
Small teams with no DevOps expertise — Setup, configuration, and troubleshooting require Java knowledge and CI/CD domain experience. Simpler, cloud-native tools may reduce onboarding friction.
Modern containerized-first workflows only — While Jenkins supports containers, it predates cloud-native patterns. Native Kubernetes CI/CD tools (Tekton, ArgoCD) offer tighter integration if Kubernetes is your sole platform.
Strict vendor security incident response SLAs — Community-driven security response may lag commercial vendors. No guaranteed support contract or incident response SLA unless a commercial support provider is engaged.

License & commercial use

Licensed under MIT (permissive, OSI-approved). Allows commercial use, modification, and distribution with minimal restrictions. Retain copyright and license notices.

MIT license permits commercial use without fee or obligation to disclose modifications. However, no license grants warranties, liability limitations, or support terms. For production use, consider engaging a commercial support provider (e.g., CloudBees) or budget internal SRE capacity. Clarify your organization's support requirements before deploying.

DEV.co evaluation signals

Editorial assessment — not user reviews. Directional, with an explicit confidence level.

Signal	Assessment
Maintenance	Active
Documentation	Strong
License clarity	Clear
Deployment complexity	Moderate
DEV.co fit	Good
Assessment confidence	High

Security considerations

Community-maintained; security fixes depend on volunteer effort and may lag proprietary tools. CII Best Practices badge indicates applied secure development practices. Reproducible builds supported. Auditing pipeline: review transitive plugin dependencies, apply security updates promptly, isolate controllers from untrusted agents, and use credentials management plugins. No guarantee against zero-days; enterprises should monitor security advisories and maintain a patching cadence. Plugin supply-chain risk is material; vet third-party plugins.

Alternatives to consider

GitHub Actions

Cloud-native, tightly integrated with GitHub repos, minimal ops overhead. Trade: vendor lock-in, less flexibility for on-premise/air-gapped use cases.

GitLab CI/CD

Declarative pipelines, self-hosted or SaaS options, integrated container registry. Trade: smaller plugin ecosystem than Jenkins; less mature for heterogeneous tool chains.

HashiCorp Nomad + Terraform

Infrastructure-as-code orchestration for complex multi-cloud workflows. Trade: steeper learning curve, no out-of-box UI for CI/CD; requires additional tooling (e.g., Vault) for secrets.

Software development agency

Build on jenkins with DEV.co software developers

Jenkins offers powerful automation and flexibility, but requires operational investment. Our DevOps team can assess fit, design deployment architecture, and support implementation. Contact us for a technical review.

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jenkins FAQ

Do I need to hire a DevOps engineer to run Jenkins?

Not mandatory for small, simple deployments. However, production Jenkins benefits from dedicated ops: plugin updates, backup/recovery, monitoring, and security patching. Budget at least part-time SRE capacity or engage commercial support.

Can Jenkins run in Kubernetes?

Yes. Use Jenkins Helm charts or Kubernetes plugin to scale agents dynamically. Controller can run as a StatefulSet; persistent volumes store job configs and build history. More complex than traditional agent model.

Is Jenkins suitable for serverless CI/CD?

Not native to serverless paradigms. Jenkins is a persistent, stateful server. For serverless, prefer AWS CodePipeline, Google Cloud Build, or GitHub Actions. Jenkins can orchestrate serverless deployments but incurs overhead.

What is the difference between weekly and LTS releases?

Weekly releases include new features and bug fixes; LTS releases are stable snapshots with security backports. Use LTS for production if stability is critical; weekly for organizations wanting latest features.

Work with a software development agency

DEV.co helps companies turn open-source tools like jenkins into production software. Our software development services cover the full lifecycle — architecture, web development, integration, and maintenance — delivered by software developers and web developers who ship. Engage our software development agency to implement or customize it for your open-source devops stack.

Evaluate Jenkins for Your CI/CD Strategy

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