The trains-server is the backend service infrastructure for TRAINS. It allows multiple users to collaborate and manage their experiments. By default, TRAINS is set up to work with the TRAINS demo server, which is open to anyone and resets periodically. In order to host your own server, you will need to install trains-server and point TRAINS to it.

trains-server contains the following components:

• The TRAINS Web-App, a single-page UI for experiment management and browsing
• RESTful API for:
  • Documenting and logging experiment information, statistics and results
  • Querying experiments history, logs and results
• Locally-hosted file server for storing images and models making them easily accessible using the Web-App

Use this repository to deploy trains-server on Kubernetes clusters.

• a Kubernetes cluster
• kubectl is installed and configured (see Install and Set Up kubectl in the Kubernetes documentation)
• a node labeled app: trains

1. Create the trains namespace (all deployment is in this namespace):

    kubectl apply -f trains-namespace.yaml 
   

2. Clone the trains-k8s repository and change to the new trains-k8s directory:

    git clone https://github.com/allegroai/trains-server-k8s.git && cd trains-k8s
   

3. Deploy the trains-server services on your Kubernetes cluster:

    kubectl apply -f services.yaml
   

4. Create all the deployments:

    kubectl apply -f elasticsearch-deployment.yaml,mongo-deployment.yaml,apiserver-deployment.yaml,fileserver-deployment.yaml,webserver-deployment.yaml
   

After trains-server is deployed, the services expose the following node ports:

• API server on 30008
• Web server on 30080
• File server on 30081

Access trains-server by creating a load balancer and domain name with records pointing to it. TRAINS translates domain names using the following rules:

• record to access the TRAINS Web-App:

  *app.<your domain name>.* pointing to your node on port 30080

  For example, trainsapp.mydomainname.com points to your node on port 30080.

• record to access the TRAINS API:

  *api.<your domain name>.* pointing to your node on port 30008

  For example, trainsapi.mydomainname.com points to your node on port 30008.

• record to access the TRAINS file server:

  *files.<your domain name>.* pointing to your node on port 30081

  For example, trainsfiles.mydomainname.com points to your node on port 30081.

You can also configure trains-server for:

• fixed users (users with credentials)
• non-responsive experiment watchdog settings

For detailed instructions, see the Optional Configuration section in the trains-server repository README file.