+ get_roles=all_roles, set_roles=tech_roles )
+# distribution to be deployed
+define_accessors(current_module, Node, "Pldistro", 'pldistro', 'node/config', 'PlanetLab distribution',
+ get_roles=all_roles, set_roles=['admin'] )
+# node deployment (alpha, beta, ...)
+define_accessors(current_module, Node, "Deployment", "deployment", "node/operation",
+ 'deployment flavour, typically "alpha", "beta", or "production"',
+ get_roles=all_roles, set_roles=['admin'])
+# extension
+define_accessors(current_module, Node, "Extensions", "extensions", "node/config", "space-separated list of extensions to install",
+ get_roles=all_roles, set_roles=['admin'])
+# test nodes perform their installation from an uncompressed bootstrapfs
+define_accessors(current_module, Node, "PlainBoostrapfs", "plain-bootstrapfs", "node/config", "use uncompressed bootstrapfs when set",
+ get_roles=all_roles, set_roles=['admin','pi','tech']