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Using Nexus

Installation​

The easiest way to install nexus is by using Docker.

docker pull sonatype/nexus3

Information about the image as well as other versions are available here.

danger

Nexus only has amd64-based images, so performance may vary depending on your machine's processor.

Running Nexus​

When running Nexus in Docker, you expose a port and map it to port 8081 inside the container. This will let you view the web console at localhost:8081 in the browser.

# map port 8081 on host to 8081 on the container
docker run -p "8081:8081" sonatype/nexus3

# ## OR ##

# map port 1234 on host to 8081 on the container
docker run -p "1234:8081" sonatype/nexus3

You will also need to expose additional ports for your repository services as well. Suppose you want to add a docker registry to your Nexus, you could map port 8082. Additionally you could map 8083 for a git repo on your Nexus.

docker run -p "8081:8081" -p "8082:8082" -p "8083:8083" sonatype/nexus3

If you use docker-compose, a Nexus service might look like this:

nexus:
  image: sonatype/nexus3
  restart: always
  ports:
    - "8081:8081" # web portal port
    - "8082:8082" # port for the docker registry
    - "8083:8083" # port for the git system

Getting the admin password​

The admin password can be obtained by running the following command in the terminal.

docker exec nexus cat /nexus-data/admin.password