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All Projects → martinspielmann → nexus3-crowd-plugin

martinspielmann / nexus3-crowd-plugin

Licence: Apache-2.0 license
Sonatype Nexus plugin for Atlassian Crowd integration

Labels

pluginauthenticationcrowdsonatype-nexusnexus-repositorysonatypenexus3nexus-repository-oss

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Nexus3 Crowd Plugin

This plugin adds a Crowd realm to Sonatype Nexus OSS and enables you to authenticate with Crowd Users and authorize with crowd roles.

It works with Nexus 3.x and Crowd 2.x and 3.x

Java CI License SonarQube Coverage

Directory naming convention:

When Nexus gets downloaded and unzipped, there are typically two directories created:

  • nexus-3.23.0-03
  • sonatype-work/nexus3

To avoid confusion, the conventions of the Sonatype reference will be used in the following descriptions:

  • nexus-3.23.0-03 will be referred to as $install-dir
  • sonatype-work/nexus3 will be referred to as $data-dir

See https://books.sonatype.com/nexus-book/reference3/install.html#directories for reference.

Installation

Test installation with docker

1. Use the following Dockerfile

FROM sonatype/nexus3

USER root

# Install curl
RUN yum install -y curl

# Download crowd plugin
RUN curl -L https://github.com/martinspielmann/nexus3-crowd-plugin/releases/download/nexus3-crowd-plugin-3.8.2/nexus3-crowd-plugin-3.8.2.jar --output /opt/sonatype/nexus/system/nexus3-crowd-plugin.jar

# Install plugin
RUN echo "reference\:file\:nexus3-crowd-plugin.jar = 200" >> /opt/sonatype/nexus/etc/karaf/startup.properties

# Add Crowd Config
RUN touch /opt/sonatype/nexus/etc/crowd.properties
RUN echo "crowd.server.url=https://jira.example.com" >> /opt/sonatype/nexus/etc/crowd.properties
RUN echo "application.name=nexus" >> /opt/sonatype/nexus/etc/crowd.properties
RUN echo "application.password=nexus" >> /opt/sonatype/nexus/etc/crowd.properties
RUN echo "cache.authentication=false" >> /opt/sonatype/nexus/etc/crowd.properties

# setup permissions
RUN chown nexus:nexus -R /opt/sonatype/nexus

USER nexus

2. Run in Terminal

docker build -t test .
docker run --rm -ti test

Easiest Install

Thanks to some upstream work in Nexus Repository (versions newer than 3.15), it's become a LOT easier to install a plugin. To install this format plugin, you can either build locally or download from github

More information on Sonatype website: https://help.sonatype.com/repomanager3/bundle-development/installing-bundles

Prerequisites

  • JDK 8 is installed
  • Sonatype Nexus OSS > 3.15 is installed

1. Download latest release (since plugin 3.8.2) kar into nexus $install-dir/deploy folder

Releases can be found here: https://github.com/martinspielmann/nexus3-crowd-plugin/releases

cd $install-dir/deploy/
wget https://github.com/martinspielmann/nexus3-crowd-plugin/releases/download/nexus3-crowd-plugin-3.8.2/nexus3-crowd-plugin-3.8.2-SNAPSHOT-bundle.kar

2. Create crowd.properties

Create a crowd.properties file in $install-dir/etc
The file has to contain the following properties:

crowd.server.url=http://localhost:8095/crowd (replace by your crowd url)
application.name=nexus (replace by your nexus application name configured in crowd)
application.password=nexus (replace by your nexus application password configured in crowd)
cache.authentication=false (should authentication be cached? default is false)

# optional:
timeout.connect=15000 (default is 15000)
timeout.socket=15000 (default is 15000)
timeout.connectionrequest=15000 (default is 15000)

3. Restart Nexus Repo

Other Install

Prerequisites

  • JDK 8 is installed
  • Sonatype Nexus OSS 3.x is installed

1. Download latest release jar into nexus system folder

Releases can be found here: https://github.com/martinspielmann/nexus3-crowd-plugin/releases

cd $install-dir/system/
wget https://github.com/martinspielmann/nexus3-crowd-plugin/releases/download/nexus3-crowd-plugin-3.8.2/nexus3-crowd-plugin-3.8.2.jar

2. Add bundle to startup properties

Append the following line to startup.properties file found in $install-dir/etc/karaf

reference\:file\:nexus3-crowd-plugin-3.8.2.jar = 200

3. Create crowd.properties

Create a crowd.properties file in $install-dir/etc
The file has to contain the following properties:

crowd.server.url=http://localhost:8095/crowd (replace by your crowd url)
application.name=nexus (replace by your nexus application name configured in crowd)
application.password=nexus (replace by your nexus application password configured in crowd)
cache.authentication=false (should authentication be cached? default is false)

# optional:
timeout.connect=15000 (default is 15000)
timeout.socket=15000 (default is 15000)
timeout.connectionrequest=15000 (default is 15000)

Usage

1. Activate Plugin

After installation you have to activate the plugin in the administration frontend. You have to login with an administrative nexus account to do so. The default admin credentials are

  • username: admin
  • password: admin123 (don't forget to change it!)

After login you can navigate to the realm administration. Activate the plugin by dragging it to the right hand side:

2. Map Crowd Groups to Nexus Roles

As a last step you have to map your crowd groups to nexus internal roles. A good starting point is mapping one crowd group to nx-admin role, so you can start managing Nexus with your Crowd Login.

  • Choose a crowd group
  • Think up a new unique name for the mapped role
  • Add nx-admin to the contained roles

That's it. You should no be able to logout and login with your Crowd user (provided that your Crowd user is in one of you previously mapped groups).

Remark: Caching can improve authentication performance significantly by moving credential validation into memory instead of requesting it from the crowd server every time. However if cache.authentication is set to true, a hashed version of user credentials will be cached. This might be a security risk and is also the reason why this property defaults to false.

Development

1.Build the plugin

Build and install the into your local maven repository using the following commands:

git clone https://github.com/martinspielmann/nexus3-crowd-plugin.git
cd nexus3-crowd-plugin
mvn install

In order to build the bundle (kar)

mvn clean package -PbuildKar

2. Start nexus with console

Move into your $install-dir. Edit the file bin/nexus.vmoptions to contain the following line

-Dkaraf.startLocalConsole=true

After that (re-)start nexus. It will then startup with an interactive console enabled. (If the console doesn't show up, you may hit the Enter key after startup). Your console should look like this afterwards:

karaf@root()>

3. Install plugin bundle

Within the console just type

bundle:install -s file://ABSOLUTE_PATH_TO_YOUR_JAR

Contributing

GitHub contributors

Thanks to all contributors who helped to get this up and running

Note that the project description data, including the texts, logos, images, and/or trademarks, for each open source project belongs to its rightful owner. If you wish to add or remove any projects, please contact us at [email protected].