Jenkins

• 638 organization members on GitHub
• 100K active installations with 300K nodes
• 3.2M installations of 1050 unique plugins

Which plugins should you use?

Dashboard View

• view implementation containing portlets (well, sort of...)
• easy to extend

CloudBees Folders

• organizes jobs into hierarchical folders (think file system)
• better grouping capabilities than Nested View and others

Build Timeout

• automatically aborts a build if it's taking too long
• usually works

Workspace Cleanup

• removes data from the workspace before/after a build

Multiple SCMs

• allows jobs to check out sources from multiple SCM providers

Node Label Parameter

• allows you to dynamically select the node where a job should run

URL Trigger

• polls given URLs for changes and triggers a build after a change is detected
• only HTTP(S), other protocols included in XTrigger

HTML Publisher

• publishes HTML reports to job/build pages

Embeddable Build Status

• exposes current build status as an image

Matrix Project

• supports multi-configuration (matrix) project type
• used to be a part of Jenkins core, now a bundled plugin
• essentially a parametrized job running all combinations of parameters

Matrix Reloaded

• rebuilds parts of matrix builds

Matrix Combinations

• allows the user to dynamically choose combinations to run in a matrix job
• introduces a Matrix Combinations parameter type

Groovy

• allows for execution of groovy code
• 2 types of build steps:
  • groovy scripts
    • run in the slave's JVM
  • system groovy scripts
    • run inside master's JVM

Plot

• outputs simple charts (plots) from builds

Job Restrictions

• restricts how builds can be triggered and where they can run

Ownership

• introduces concept of owners of jobs and slaves
• includes:
  • ownership-based security (via Role Strategy and Job Restrictions plugins)
  • summaries
  • reasonable default assignments

Rebuild

• rebuilds a parameterized build with the same parameters

Parameterized Trigger

• extension of out-of-the-box upstream-downstream job relationship
• provides job chaining with parameter passing

Workflow

• allows you to write complex workflows in Groovy with an embedded DSL
• forget Build Flow and Join plugins
• introduces a new workflow job type
• collection of plugins
• supports:
  • core job-related stuff (triggers, parameters, SCM...)
  • durable pipelines
  • allocation of slaves and workspaces
  • human input integrated into flows
  • sandboxing via Script Security plugin

Description Setter

• sets the description for a build
• uses a regular expression to find a line in the console log

Implied Labels

• recognizes implication rules to infer node labels

Environment Injector

• manages environment variables for jobs and nodes
• use cases:
  • set up clean environment for nodes
  • inject variables based on user parameter values
  • inject environment variables from the evaluation of a Groovy script

Naginator

• automatically reschedules a build after a build failure

Email Extension

• controls all aspects of email notifications

Mailer

Timestamper

• adds timestamps to console output

Copy To Slave

• transfers data between the master's file system and jobs' workspaces

Copy Artifact

• copies an artifact from another build/job into the current build's workspace

Priority Sorter

• queues jobs according to their priorities
• the lower the priority, the sooner the job runs

Throttle Concurrent Builds

• limits the number of concurrent builds of a project running per node or globally
• replaces Locks and Latches plugin

Build Publisher

• sends builds to another Jenkins master over HTTP

Job Configuration History

• versioning of job and system configuration

Audit trail

• records who performed a particular operation and when

Tmp Cleaner

• periodically cleans up JVM temporary files
• no UI

  
  -Dhudson.plugins.tmpcleaner.TmpCleanWork.minutes=360
  -Dhudson.plugins.tmpcleaner.TmpCleanWork.days=1
  

Credentials

• allows you to store and manage credentials in Jenkins
• exposes API to other plugins
• organizes credentials into domains

Disk Usage

• periodically calculates disk space occupied by jobs
• beware of performance impact!

Docker

• dynamically provisions Docker slaves
• needs images with JDK and SSH server
• allows to commit a container

Xvnc

• runs Xvnc session during a build
• each build gets its own display allocated from a free list

Read-only Configurations

• shows global and job configurations in read-only mode

Custom Tools

• installs tools on slaves as needed

Favorite

• allows the users to mark jobs as favorite