HSRN Cluster (NYU's Kubernetes Cluster)

First time using HSRN

When you log in for the first time, an HSRN staff member will have to add you to a Kubernetes namespace. Email [email protected] with your netID and the name you want for your namespace.

Before sending the email, follow the instructions to login and register with the HSRN system. They cannot add you until this step is done. Instructions here: https://k8s-docs.hsrn.nyu.edu/get-started/

Install the client

You need to download the Kubectl client, and if you want to build new container images, you should also install Docker.

# Install with Homebrew on macOS
brew install kubectl

Go to https://config.hsrn.nyu.edu/ and click on "get your config". You will be asked to log in using one of a long list of providers. Please select "New York University" if you have an NYU netID.

After you log in, you will be shown a YAML file. Put that file in .kube/config in your home directory

# go to home directory
cd ~
# You can create the .kube directory if it doesn't exist.
mkdir .kube
cd .kube/
# copy the YAML file generated online
# use ``wq`` to save and exit vim
vim config
# set the KUBECONFIG environment variable to its location
export KUBECONFIG=<home-directory>/.kube/config

For troubleshooting or details, please check the HSRN documentation available here

Get access

you can select your namespace by entering the following

kubectl config set-context --current --namespace ptgproject

Check your access by doing:

kubectl auth can-i create pods

PTG members

Other team members will need to follow the same steps and download their own configuration file. Once this is done contact HSRN staff member ([email protected]) so they can add you to the ptg namespace.

Building And Deploying PTG applications on Kubernetes

Push the image to a container registry

In order for the cluster to be able to get your container image, you have to put it on a registry. There are multiple free registries available. We are using GitHub Actions to build and push Docker images. Each repository has its Actions.

Create the Deployment

Create the Deployment on the cluster by running:

$ kubectl apply -f deployment.yml

Create the Service

Create the Service on the cluster by running:

kubectl apply -f service.yml

Create an Ingress with a subdomain

Create the Ingress on the cluster by running:

kubectl apply -f ingress.yml

Kubernetes Dashboard NYU

Kubernetes provides a web-based user interface (UI) that lets you perform various actions on your cluster. You can use the dashboard to:

• Deploy containerized applications to your cluster
• Troubleshoot containerized applications
• Manage cluster resources
• View information related to applications running on a cluster
• Create or modify Kubernetes resources, including Deployments, DaemonSets, and Jobs
• Provides information about the state of cluster resources and various errors.

You can access the Kubernetes Dashboard here. To get access you need to use your NYU credentials (NYU email and password). Inside the dashboard, select the namespace "ptgproject" using the dropdown menu.

Using ptgctl to replay recordings

ptgctl is a Python Library and Command Line tool for interacting with the PTG API and data streams. Installation details are available here. After ptgctl is installed, run the following code:

# upgrading ptgctl
ptgctl upgrade
# url to another machine
ptgctl login --url https://argus-api.hsrn.nyu.edu

To replay a mock video

ptgctl mock video <path/to/video.mp4>

To replay a video that is stored in the cluster

# list available recordings
ptgctl recordings ls
# example: replay recording 2023.11.01-18.08.15 
ptgctl recordings replay 2023.11.01-18.08.15  main+depthlt