What steps are necessary to deploy an application on all nodes of a Kubernetes cluster?

The following steps are usually performed to deploy an application on all nodes of a Kubernetes cluster:

1. Create a Docker image of the application — package your application into a container.
2. Upload the image to a registry — for example, Docker Hub or a private registry.
3. Create a Deployment manifest — describe in a YAML file how many pods to run.
4. Apply the manifest using kubectl:

kubectl apply -f deployment.yaml

5. Kubernetes Scheduler will distribute the pods across nodes — automatically, based on resources and policies.

6. Check the deployment status:

kubectl get pods
kubectl describe deployment <name>

Thus, you do not manually deploy the application on each node, but create a Deployment that guarantees the launch of the required number of replicas across the entire cluster.