Connecting a standalone login node to multiple clusters in AWS PCS - AWS PCS

Connecting a standalone login node to multiple clusters in AWS PCS

The pcs-multi-cluster-login-configure.sh script provides an automated way to configure multiple Slurm sackd daemons on a single standalone login node. It enables the login node to communicate with multiple clusters. The script automates the following operations:

  • Uses AWS PCS API actions to get cluster information

  • Prompts for the base64-encoded Slurm authentication key

  • Creates a Slurm JWKS file with cluster authentication key

  • Configures the sackd service with cluster endpoints and ports

  • Creates a systemd service file for a cluster-specific sackd daemon

  • Generates an activation script for cluster environment setup

  • Enables and starts the sackd service

Note

This script requires Slurm version 25.05 or later.

Slurm must already be installed on the instance (equivalent to step 3 in the manual process). The instance must be able to reach the target cluster's endpoints. The script performs the equivalent operations of step 4 and step 5 in the manual configuration process. It automatically gets the cluster information, configures the sackd service, creates the necessary systemd service files, and creates an activation script that users can use to configure their shell environment for cluster interaction.

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