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01-create-cluster-on-cloudlab.md

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Creating a 2-node cluster on Cloudlab

This guideline is mainly for creating a cluster on NSF Cloudlab. We have tested several physical node types on NSF Cloudlab, such as xl170 and c220g5, but it should work on any x86 nodes on NSF Cloudlab. Please refer to The Cloud Lab Manual to find available node types on NSF Cloudlab and their hardware spec.

  • Note: We haven't tested SPRIGHT on any arm nodes yet, e.g., m400.

We conduct the experiment on Ubuntu 20.04. Using other Ubuntu distributions may lead to unexpect issues. We haven't fully verified this yet.

Disk space on Cloudlab machines

As Cloudlab only allocates 16GB disk space by default, please check Temp Filesystem Max Space to maximize the disk space configuration and keep Temporary Filesystem Mount Point as default (/mydata)

Guideline

  1. The following steps require a bash environment on Cloudlab. Please configure the default shell in your CloudLab account to be bash. For how to configure bash on Cloudlab, Please refer to the post "Choose your shell": https://www.cloudlab.us/portal-news.php?idx=49

  2. When starting a new experiment on Cloudlab, select the small-lan profile

  3. On the profile parameterization page,

    • Set Number of Nodes as needed
      • We use node-0 as the master node to run the control plane of Kubernetes, Knative.
      • node-1 is used as worker nodes.
    • Set OS image as Ubuntu 20.04
    • Set physical node type as c220g5 (or any other preferred node type)
    • Please check Temp Filesystem Max Space box
    • Keep Temporary Filesystem Mount Point as default (/mydata)

  4. Wait for the cluster to be initialized (It may take 5 to 10 minutes)

  1. Extend the disk space on allocated master and worker nodes. This is because Cloudlab only allocates a 16GB disk space.
    • We use /mydata as the working directory
    • On the master node and worker nodes, run
sudo chown -R $(id -u):$(id -g) /mydata
cd /mydata
export MYMOUNT=/mydata