Nexus Repository Conda Format

Developing
- Requirements
- Building
Using Conda with Nexus Repository Manager 3
Compatibility with Nexus Repository Manager 3 Versions
Features Implemented In This Plugin
- Supported Conda Commands
Installing the plugin
The Fine Print
Getting Help

Developing

Requirements

Apache Maven 3.3.3+
Java 8+
Network access to https://repository.sonatype.org/content/groups/sonatype-public-grid

Also, there is a good amount of information available at Bundle Development

Building

To build the project and generate the bundle use Maven

mvn clean package

If everything checks out, the bundle for conda should be available in the target folder

Build with Docker

docker build -t nexus-repository-conda:0.0.1 .

Run as a Docker container

docker run -d -p 8081:8081 --name nexus nexus-repository-conda:0.0.1

For further information like how to persist volumes check out the GitHub repo for our official image.

The application will now be available from your browser at http://localhost:8081

Using Conda With Nexus Repository Manager 3

We have detailed instructions on how to get started here!

Compatibility with Nexus Repository Manager 3 Versions

The table below outlines what version of Nexus Repository the plugin was built against

Plugin Version	Nexus Repository Version
v0.0.1	3.15.0-01

If a new version of Nexus Repository is released and the plugin needs changes, a new release will be made, and this table will be updated to indicate which version of Nexus Repository it will function against. This is done on a time available basis, as this is community supported. If you see a new version of Nexus Repository, go ahead and update the plugin and send us a PR after testing it out!

All released versions can be found here.

Features Implemented In This Plugin

Feature	Implemented
Proxy	✔️ *
Hosted
Group

* tested primarily against the Anaconda Repo, not guaranteed to work on the wide wild world of Conda repositories.

Supported Conda Commands

Proxy

Plugin Version	Nexus Repository Version
`conda install`	✔️

Installing the plugin

There are a range of options for installing the conda plugin. You'll need to build it first, and then install the plugin with the options shown below:

Easiest Install (beta)

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 the conda plugin, follow these steps:

Build the plugin with mvn clean package -PbuildKar
Copy the nexus-repository-conda-0.0.1-bundle.kar file from your target folder to the deploy folder for your Nexus Repository installation.

Once you've done this, go ahead and either restart Nexus Repo, or go ahead and start it if it wasn't running to begin with.

You should see conda (proxy) in the available Repository Recipes to use, if all has gone according to plan :)

Temporary Install

Installations done via the Karaf console will be wiped out with every restart of Nexus Repository. This is a good installation path if you are just testing or doing development on the plugin.

Enable Nexus Repo console: edit <nexus_dir>/bin/nexus.vmoptions and change karaf.startLocalConsole to true.

More details here: Bundle Development

Run Nexus Repo console:

# sudo su - nexus
$ cd <nexus_dir>/bin
$ ./nexus run
> bundle:install file:///tmp/nexus-repository-conda-0.0.1.jar
> bundle:list

(look for org.sonatype.nexus.plugins:nexus-repository-conda ID, should be the last one)

> bundle:start <org.sonatype.nexus.plugins:nexus-repository-conda ID>

(more) Permanent Install

For more permanent installs of the nexus-repository-conda plugin, follow these instructions:

Copy the bundle (nexus-repository-conda-0.0.1.jar) into <nexus_dir>/deploy

This will cause the plugin to be loaded with each restart of Nexus Repository. As well, this folder is monitored by Nexus Repository and the plugin should load within 60 seconds of being copied there if Nexus Repository is running. You will still need to start the bundle using the karaf commands mentioned in the temporary install.

(most) Permanent Install

If you are trying to use the conda plugin permanently, it likely makes more sense to do the following:

Copy the bundle into <nexus_dir>/system/org/sonatype/nexus/plugins/nexus-repository-conda/0.0.1/nexus-repository-conda-0.0.1.jar

Make the following additions marked with + to <nexus_dir>/system/org/sonatype/nexus/assemblies/nexus-core-feature/3.x.y/nexus-core-feature-3.x.y-features.xml

      <feature prerequisite="false" dependency="false">nexus-repository-rubygems</feature>
+     <feature prerequisite="false" dependency="false">nexus-repository-conda</feature>
      <feature prerequisite="false" dependency="false">nexus-repository-gitlfs</feature>
  </feature>

And

+ <feature name="nexus-repository-conda" description="org.sonatype.nexus.plugins:nexus-repository-conda" version="0.0.1">
+     <details>org.sonatype.nexus.plugins:nexus-repository-conda</details>
+     <bundle>mvn:org.sonatype.nexus.plugins/nexus-repository-conda/0.0.1</bundle>
+ </feature>
 </features>

This will cause the plugin to be loaded and started with each startup of Nexus Repository.

The Fine Print

It is worth noting that this is NOT SUPPORTED by Sonatype, and is a contribution of ours to the open source community (read: you!)

Remember:

Use this contribution at the risk tolerance that you have
Do NOT file Sonatype support tickets related to Conda support in regard to this plugin
DO file issues here on GitHub, so that the community can pitch in

Phew, that was easier than I thought. Last but not least of all:

Have fun creating and using this plugin and the Nexus platform, we are glad to have you here!

Getting help

Looking to contribute to our code but need some help? There's a few ways to get information:

Chat with us on Gitter
Check out the Nexus3 tag on Stack Overflow
Check out the Nexus Repository User List

jfpanisset / nexus-repository-conda