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verdaccio/docker-examples/v4/multi-registry-uplink/README.md

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# Verdaccio Uplinks
## Context
This is an experiment for the **uplinks** feature.
https://verdaccio.org/docs/en/uplinks
Furthermore, this experiment also proves the oldest Verdaccio (2.x) still is able to communicate with the latest development version (4.x).
## Objective
We have 3 registries:
- Server 1 (verdaccio@4.x)
- Server 2 (verdaccio@2.x)
- Server 3 (verdaccio@3.x)
The servers have no authentication in order to simplify the configuration. The server 3 and server 1 are chained with server 2 which is the unique that contains the dependency `@jota/pk1-juan`.
The request will go through `server 1 --> server 3 --> server 2` and should retrieve the tarball to the local project executing the following:
```
npm install @jota/pk1-juan --registry http://localhost:4873
```
The result is a successful installation of the package.
## Usage
To force recreate the images.
```bash
docker-compose up --build --force-recreate -d
```
To stop all containers
```bash
docker-compose stop
```