To access a compute node through the bastion the OCID of the compute nodes needs to be provided.
List all the compute nodes in a gien compartment.
listComputeResources.sh CompartmentName
Listing compute instance from compartment CompartmentName with ID ocid1.compartment.oc1..aaaaaaaacompartment ````
Name InstanceID Linux-UA ocid1.instance.oc1.phx.anyhqcomputenode
The name is the name of the compute node.