Setup self hosted Chocolatey Repository/Proxy on Linux [Fixes

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This is an old revision of the document!

To host a local repository for Chocolatey either as server for self-hosted packages or as proxy server for any NuGet server/the official chocolatey repository server we use Solartype Nexus3: sonatype.com - Nexus3. Nexus3 is also useable for hosting a simple, easy-to-manage repository for the APT-package manager.

Download Debian 12 Server from here: debian.org/distrib and install your machine.
Install Java 17:
```
sudo apt install openjdk-17-jdk
```
Add user nexus to run Nexus3:
```
adduser nexus
```
Download the latest Nexus3 from https://help.sonatype.com/en/download.html

Unpack it to /opt/:

tar xzvf <downloaded-tar-package>.tar.gz -C /opt

Change owner of unpacked files:
```
chown nexus -R /opt/nexus-<version>
```
Make binary executeable:
```
chmod +x /opt/nexus-<version>/bin/nexus
```
Create systemservice with the name nexus.service and copy it to /etc/systemd/system (keep in mind to add the nexus version):

nexus.service

[Unit]
Description=nexus service
After=network.target
 
[Service]
Type=forking
Environment="NEXUS_SECRETS_KEY_FILE=/opt/sonatype-work/nexus3/keystores/nexus.secrets.json"
LimitNPROC=65536
LimitNOFILE=65536
ExecStart=/opt/nexus-<version>/bin/nexus start
ExecStop=/opt/nexus-<version>/bin/nexus stop 
User=nexus
Restart=on-abort
TimeoutSec=600
 
[Install]
WantedBy=multi-user.target

cp nexus.service /etc/systemd/system

systemctl start nexus.service

systemctl enable nexus.service

When everything was successful, enter the webservice with http://<ip>:8081/
The password for admin is located under /opt/sonatype/sonatype-work/nexus3/admin.password after entering the password, it's forced to be changed.
```
cat /opt/sonatype/sonatype-work/nexus3/admin.password
```
The installation of Nexus is now finished!

NuGet Proxy

To add a new NuGet (Chocolatey) repository proxy add a new nuget (proxy). To proxy the official Chocolatey repository add the following URL as URL:

https://community.chocolatey.org/api/v2/

Finally save the proxy repository.

NuGet Hosted

If the repository should also host packages locally add a new nuget (hosted). <panel>

This section will be extended later.

NuGet Group

To make the proxy-repository and all local hosted packages available through one URL, add a nuget-group on the repository tab. Then add both nuget-proxy and nuget-hosted to the group.

APT Repository

Sourced from: