Description
Pluto is proof-of-concept application for demonstrating the work that the High-Performance Computing (HPC) team at Canonical has accomplished over the past several months. Pluto showcases the Charmed HPC project by automatically bootstrapping a micro-HPC cluster. The following services are deployed by Pluto to build the cluster:
After several minutes, you will have a fully-functional charmed micro-HPC cluster at your fingertips! Take the cluster for a spin and see how Ubuntu can meet your HPC needs!
Note: Pluto is proof-of-concept application to set up a small, working Charmed HPC cluster for personal experimentation. It should not be used for production-level deployments.
Usage
Requirements
Your system needs to have the following requirements installed to use pluto to deploy a micro-HPC cluster:
Also, you should have access to a Juju supported cloud as well. Pluto only supports machine charms, so Kubernetes-base clouds such as microk8s or Google GKE are not supported. If you are planning on using LXD as your cloud, see the section Appendix: Using LXD for extra steps before you bootstrap the micro-HPC cluster.
Setting up Juju
After installing snapd and juju, bootstrap a cloud controller using the following command:
juju bootstrap
You will be taken an interactive dialog to configure your cloud controller. Please visit the Juju documentation for specific information on how to bootstrap a Juju controller for your target cloud.
Bootstrapping your micro-HPC cloud
Once the Juju controller for the cloud of you choice has been bootstrapped, use snap
to install pluto:
sudo snap install pluto
Now use the following command to bootstrap your micro-HPC cluster:
pluto bootstrap
In several minutes you will now have access to your very own micro-HPC cluster! Have fun!
Appendix: Using LXD
pluto will not initially work with LXD due to LXD containers being initially unable to mount or export NFS shares. This has to do with LXD containers AppArmor configuration. To enable NFS exporting/mounting, use the following commands to modify the default LXD profile on your system. This needs to be done before you bootstrap the micro-HPC cluster with pluto:
lxc profile set default security.privileged true
lxc profile set default raw.apparmor 'mount fstype=nfs*, mount fstype=rpc_pipefs,'
Note: Given that you need to elevate the privileges of the LXD containers for the micro-HPC cluster to function, it is strongly recommended to use another cloud such as OpenStack or MAAS.
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Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
Snap can be installed from the command line on openSUSE Leap 15.x and Tumbleweed.
You need first add the snappy repository from the terminal. Leap 15.5 users, for example, can do this with the following command:
sudo zypper addrepo --refresh https://download.opensuse.org/repositories/system:/snappy/openSUSE_Leap_15.5 snappy
Swap out openSUSE_Leap_15.5 for openSUSE_Leap_15.4 or openSUSE_Tumbleweed if you’re using a different version of openSUSE.
With the repository added, import its GPG key:
sudo zypper --gpg-auto-import-keys refresh
Finally, upgrade the package cache to include the new snappy repository:
sudo zypper dup --from snappy
Snap can now be installed with the following:
sudo zypper install snapd
You then need to either reboot, logout/login or source /etc/profile to have /snap/bin added to PATH.
Additionally, enable and start both the snapd and the snapd.apparmor services with the following commands:
sudo systemctl enable --now snapd
sudo systemctl enable --now snapd.apparmor
To install pluto, simply use the following command:
sudo snap install pluto --edge
Browse and find snaps from the convenience of your desktop using the snap store snap.
Interested to find out more about snaps? Want to publish your own application? Visit snapcraft.io now.
