"""This profile demonstrates a *parameterized profile* that allows you to select one of several standard OS images for your nodes. When you instantiate this profile, you will be asked to select the OS via a drop down menu.

Instructions:
Click on any node in the topology and choose the `shell` menu item."""

# Import the Portal object.
import geni.portal as portal
# Import the ProtoGENI library.
import geni.rspec.pg as pg

# Create a portal context, needed to defined parameters
pc = portal.Context()

# Create a Request object to start building the RSpec.
request = pc.makeRequestRSpec()

#
# This is a typical list of images.
#
imageList = [
    ('urn:publicid:IDN+emulab.net+image+emulab-ops//UBUNTU18-64-STD', 'UBUNTU 18.04'),
    ('urn:publicid:IDN+emulab.net+image+emulab-ops//UBUNTU16-64-STD', 'UBUNTU 16.04'),
    ('urn:publicid:IDN+emulab.net+image+emulab-ops//UBUNTU20-64-STD', 'UBUNTU 20.04'),
    ('urn:publicid:IDN+emulab.net+image+emulab-ops//CENTOS7-64-STD',  'CENTOS 7'),
    ('urn:publicid:IDN+emulab.net+image+emulab-ops//FBSD113-64-STD',  'FreeBSD 11.3')]

# Define a single parameter for the instantiation page.
pc.defineParameter("osImage", "Select OS image",
                   portal.ParameterType.IMAGE,
                   imageList[0], imageList,
                   longDescription="Most clusters have this set of images, " +
                   "pick your favorite one.")

# Retrieve the values the user specifies during instantiation.
params = pc.bindParameters()

# Add a raw PC to the request and set the disk image.
node = request.RawPC("node")
node.disk_image = params.osImage

# Print the RSpec to the enclosing page.
pc.printRequestRSpec(request)