Batch Job Submission¶
Batch job submission from containers is designed to work exactly like on a login node for the cluster. The workload will need to be annotated in order to get the necessary configuration injected at runtime.
You can add the required annotations to any workload object such as a Pod, Deployment, or a DeploymentConfig. Submitting a batch job from a container requires access to the OLCF shared filesystems so that annotation is also included.
metadata: annotations: ccs.ornl.gov/batchScheduler: "true" ccs.ornl.gov/fs: olcf
Full example of a deployment using a base image provided by OLCF.
Batch job submission from containers uses SSH to access the submission host. If you use your own image you must install the openssh client package in your image.
apiVersion: apps/v1 kind: Deployment metadata: name: test-jobsubmit annotations: ccs.ornl.gov/batchScheduler: "true" ccs.ornl.gov/fs: olcf spec: replicas: 1 selector: matchLabels: app: test-jobsubmit template: labels: app: test-jobsubmit spec: containers: - name: test-jobsubmit image: "image-registry.openshift-image-registry.svc:5000/openshift/ccs-rhel7-base-amd64:latest" args: - cat stdin: true stdinOnce: true
The annotation will install wrappers into /usr/bin: