Project. Part 2: mounting file systems on Warewulf node.
Contents
13. Project. Part 2: mounting file systems on Warewulf node.¶
The NFS exported /home is mounted on the warewulf node per the default configuration settings in warewulf.conf.
13.1. Mounting additional NFS directory.¶
Directory /opt is also exported from wwctX container host, but not mounted on the warewulf node by default.
To mount it, do the following:
Edit file /usr/local/etc/warewulf/warewulf.conf on the wwctX host.
In the nfs: block, set mount: true for the both /home abnd /opt:
nfs:
enabled: true
export paths:
- path: /home
export options: rw,sync
mount options: defaults
mount: true
- path: /opt
export options: ro,sync,no_root_squash
mount options: defaults
mount: true
systemd name: nfs-server
Rebuild the overlay:
wwctl overlay build
Reboot the warewulf node:
ssh node08
sudo reboot
SSH to the node after it boots up and run command:
ssh node08
df -h
You should see the /opt mounted.
13.2. Mounting a local disk as /scratch.¶
Enter the shell in the warewulf container:
wwctl container shell warewulf-debian:12.0
Install packages gdisk and ignition:
apt install gdisk ignition
Exit the container:
exit
Add disk /dev/sda and mounting point /scratch in the node configuration. Please use your node name instead of node08 below:
wwctl node set node08 \
--diskname /dev/sda --diskwipe \
--partname scratch --partcreate --fsname scratch \
--fsformat ext4 --fspath /scratch --fswipe
Rebuild the overlay:
wwctl overlay build
Reboot the node.
ssh node08
sudo reboot
Check the mounted file systems after the node boots up:
ssh node08
df -h
You should see /dev/sda1 mounted on /scratch
13.3. Building our own container for warewulf.¶
We first deployed the warewulf installation image file based on a container downloaded from github.
Now we are going to build a container on our system.
On wwctX host, install package podman:
sudo apt install podman
Download warewulf container configurations:
cd ~/git
git clone https://github.com/warewulf/warewulf-node-images.git
Let’s build podman container and name it debian_local:
sudo podman build -f git/warewulf-node-images/debian/Containerfile --tag debian_local
Check what containers podman can see:
sudo podman images
Export localhost/debian_local into tar file debian_local.tar:
sudo podman save localhost/debian_local -o debian_local.tar
Import the tar file into a warewulf container:
sudo wwctl container import file:///home/hostadm/debian_local.tar debian_local
Check what containers warewulf sees:
wwctl container list
Login to the container, install packages nano, sudo, and less:
sudo wwctl container shell debian_local
apt install nano sudo less
Assign the new container, debian_local, to your node. For example, for node08, it runs as follows:
sudo wwctl node set node08 --container debian_local
Check if the node configuration has the new container listed:
wwctl node list node08 -a
Rebuild the overlay:
sudo wwctl overlay build
Reboot the node.
ssh node08
sudo reboot
SSH to the node, and see if it has the newer kernel running:
uname -a