database refresh overwrites node usernames in table #263
Description
I don't have time to properly fix this now so am marking here for future reference.
CloudmeshDatabase.refresh causes the username field (and perhaps others) to be overwritten.
I noticed this when trying to deploy hadoop to chameleon which uses cc instead of ubuntu as the user. The deployment autodetects the node usernames but deployment was failing due to incorrect username. I traced the error to the refresh() method by stepping through the code and monitoring the table.
The relevant code snipped is below.
# get provider for specific cloud
provider = CloudProvider(name).provider
elements = cls.find(category=name, kind=kind, output='dict')
current_elements = {}
if elements:
for element in elements:
current_elements[element["name"]] = element
# pprint(current_elements)
# if purge:
# cls.clear(kind=kind, category=name)
elements = provider.list(kind, name)
for element in list(elements.values()):
element["uuid"] = element['id']
element['type'] = 'string'
element["category"] = name
# element["user"] = user
element["kind"] = kind
element["provider"] = provider.cloud_type
if current_elements is not None:
for index in current_elements:
current = current_elements[index]
for attribute in ["username", "image", "flavor", "group"]:
if attribute in current and current[attribute] is not None:
element[attribute] = current[attribute]
# print ("CCC", index, element["name"], element["flavor"])
cls.add(element)
return True