Docker image not able to stay alive in a Jenkins Kubernetes build pipeline

Unfortunately it's not possible since as you stated, argo is the only command available on this image.

It can be confirmed here:

##################################################################################################### argocli####################################################################################################FROM scratch as argocliCOPY --from=argo-build /go/src/github.com/argoproj/argo/dist/argo-linux-amd64 /bin/argoENTRYPOINT [ "argo" ]

As we can see on this output, running argo is all this container is doing:

$ kubectl run -i --tty --image argoproj/argocli argoproj1 --restart=Never argo is the command line interface to ArgoUsage:  argo [flags]  argo [command]...  

You can optionally create you own image based on that and include sleep, so it'll be possible to keep it running as in this example:

apiVersion: v1kind: Podmetadata:  name: busybox  namespace: defaultspec:  containers:  - name: busybox    image: busybox:1.28    command:      - sleep      - "3600"    imagePullPolicy: IfNotPresent  restartPolicy: Always