Sonatype Nexus3 Docker

Dockerizing Sonatype Nexus Repository 3: A Comprehensive Guide

Introduction

In today's DevOps landscape, Docker has emerged as a crucial tool for building, shipping, and running distributed applications. This article will guide you through the process of dockerizing Sonatype Nexus Repository 3, a leading artifact repository manager.

Dockerfile for Nexus Repository 3

The foundation for dockerizing Nexus Repository 3 lies in creating a Dockerfile. Here is an example Dockerfile: ``` FROM centos:8 RUN yum install -y java-11-openjdk-headless COPY nexus-repository-manager-3.37.0-01-linux.zip /opt/sonatype RUN unzip /opt/sonatype/nexus-repository-manager-3.37.0-01-linux.zip -d /opt EXPOSE 8081 CMD ["/opt/sonatype/nexus/bin/nexus"] ```

Building and Running the Docker Image

To build the Docker image, run the following command: ``` docker build . -t nexus-repository-3 ``` Once the image is built, you can run it using the following command: ``` docker run -d --name nexus-repository-3 -p 8081:8081 nexus-repository-3 ```

Docker Registry

Docker images can be pushed to a Docker registry for distribution and sharing. You can use either the Docker Hub or a private registry. To push the Docker image to Docker Hub, run the following command: ``` docker push /nexus-repository-3 ```

Configuration

Once the Docker image is running, you can access the Nexus Repository web interface at http://localhost:8081. The default username and password are 'admin' and 'admin123'. To configure additional settings, edit the configuration files located at /opt/sonatype/nexus/conf.

Docker Repository Connectors

Docker repository connectors allow a Docker client to connect to a Docker registry and manage images. To configure a Docker repository connector, follow these steps:

1. Log in to the Nexus Repository web interface.
2. Go to the 'Administration' tab.
3. Under 'Repositories', click on 'Docker Registry'.
4. Click on 'Add Connector'.
5. Configure the connector settings and click 'Save'.

By following the steps outlined in this article, you can successfully dockerize Sonatype Nexus Repository 3. This will enable you to leverage the benefits of Docker in your CI/CD pipeline, streamlining the process of building, deploying, and managing your artifacts.