Podman provider

Podman provider is an option for taking control of Virtual Machines (or bare machines) through a remote Kubernetes installation.

To install Podman, please refer to the official documentation.

The simplest option to install the submitter is using pip

pip install git+https://github.com/landerlini/interlink-condorce-plugin.git

The following script should work

#!/bin/bash
export PODMAN_BASE_URL=unix:///run/podman/podman.sock
export GITREPO="git+https://github.com/landerlini/interlink-condorce-plugin.git@main"

pip install --update --force-reinstall $GITREPO

while true
do
        pip install --force-reinstall --no-deps $GITREPO

        interlink podman \
                --build-config /data/interlink/podman-recas.cfg \
                --server wss://<your NATS server here> \
                --pool podman \
                --cpu 85 \
                --memory 1Ti \
                --pods 123 \
                --gpus 28 \
                --responders 1 \
                &> /data/interlink/logs/plugin.log
done;

For production environments, it is a good idea to replace @main with a tagged version of the repository.

A configuration sample

This configuration has been used for Podman in a machine hosted at ReCaS Bari.

# Volumes and directories configuring access to executor-local data
[volumes]

### Area in the executor filesystem to be used for temporary files
scratch_area = "/data/interlink/scratch"

### Location to cache singularity images in the executor filesystem
apptainer_cachedir = "/data/interlink/cache"

### Location where to look for pre-built images
image_dir = "/data/interlink/images"

### Colon-separated list of directories to include in $PATH to look for executables
additional_directories_in_path = []

### Time in seconds between fuse mount and job execution
fuse_sleep_seconds = 15


# Options configuring the behavior of apptainer runtime
[apptainer]

### Relative or absolute path to apptainer, singularity or other compatible replacements
executable = "/usr/bin/singularity"

### Enables --fakeroot in apptainer exec/run commands
fakeroot = false

### Enables --containall flag in apptainer exec/run commands
containall = false

### Define the technique to mount fuse volumes to adopt on the host.

fuse_mode = "host-privileged"

### Do not propagate umask to the container, set default 0022 umask
no_init = false

### Do not bind home by default
no_home = true

### Drop all privileges from root user in container
no_privs = false

### Enable nVidia GPU support
nvidia_support = false

### Clean the environment of the spawned container
cleanenv = true

### Unsquash
unsquash = false


# Proxy to download pre-build Docker Images instead of rebuilding at each execution
[shub_proxy]

### shub proxy instance used to retrieve cached singularity images. Without protocol!
server = ""

### Master token of the proxy used to request and generate client tokens
master_token = ""