Kubernetes plugin for Nextflow

Summary

The Kubernetes plugin provides native Kubernetes execution capability for Nextflow pipelines. It supports pod management, volume mounting, and resource allocation.

Get Started

To use this plugin, add it to your nextflow.config:

plugins {
    id 'nf-k8s'
}

Configure the Kubernetes executor:

process.executor = 'k8s'

k8s {
    namespace = 'default'
    serviceAccount = 'nextflow'
    storageClaimName = 'nextflow-pvc'
}

The plugin automatically detects the Kubernetes configuration from:

• In-cluster configuration (when running inside a pod)
• ~/.kube/config file
• KUBECONFIG environment variable

Examples

Basic Kubernetes Configuration

plugins {
    id 'nf-k8s'
}

process.executor = 'k8s'

k8s {
    namespace = 'nextflow'
    serviceAccount = 'nextflow-sa'
    storageClaimName = 'nf-workdir-pvc'
    storageMountPath = '/workspace'
}

workDir = '/workspace/work'

Pod Configuration

k8s {
    namespace = 'nextflow'
    pod = [
        [volumeClaim: 'data-pvc', mountPath: '/data'],
        [secret: 'aws-credentials', mountPath: '/root/.aws']
    ]
}

Resource Requests

process {
    executor = 'k8s'
    cpus = 2
    memory = '4 GB'

    pod = [[label: 'app', value: 'nextflow']]
}

License

Apache License 2.0