sandinh/nexus3 repository overview

⁠sonatype/nexus3

A Dockerfile for Sonatype Nexus Repository Manager 3, based on CentOS.

To run, binding the exposed port 8081 to the host.

$ docker run -d -p 8081:8081 --name nexus sonatype/nexus3

To test:

$ curl -u admin:admin123 http://localhost:8081/service/metrics/ping

To (re)build the image:

Copy the Dockerfile and do the build-

$ docker build --rm=true --tag=sonatype/nexus3 .

⁠Notes

• Default credentials are: admin / admin123

• It can take some time (2-3 minutes) for the service to launch in a new container. You can tail the log to determine once Nexus is ready:

$ docker logs -f nexus

• Installation of Nexus is to /opt/sonatype/nexus.

• A persistent directory, /nexus-data, is used for configuration, logs, and storage. This directory needs to be writable by the Nexus process, which runs as UID 200.

• Additional options can be passed to the JVM via EXTRA_JAVA_OPTS environment variable, default is "-Xms1200M -Xmx1200M"

  $ docker run -d -p 8081:8081 --name nexus -e EXTRA_JAVA_OPTS="-Xms768M -Xmx768M" sonatype/nexus3
  

  Copy

⁠Persistent Data

There are two general approaches to handling persistent storage requirements with Docker. See Managing Data in Containers⁠ for additional information.

1. Use a data volume container. Since data volumes are persistent until no containers use them, a container can created specifically for this purpose. This is the recommended approach.

$ docker run -d --name nexus-data sonatype/nexus3 echo "data-only container for Nexus"
$ docker run -d -p 8081:8081 --name nexus --volumes-from nexus-data sonatype/nexus3

1. Mount a host directory as the volume. This is not portable, as it relies on the directory existing with correct permissions on the host. However it can be useful in certain situations where this volume needs to be assigned to certain specific underlying storage.

$ mkdir /some/dir/nexus-data && chown -R 200 /some/dir/nexus-data
$ docker run -d -p 8081:8081 --name nexus -v /some/dir/nexus-data:/nexus-data sonatype/nexus3