Determine the required parameters in a VM/AssemblyInstance creation...

Oracle Enterprise Manager Cloud Control's Cloud API documentation [12.1.0.2 EM with 12.1.0.4 Cloud Service Portal Plugin|http://docs.oracle.com/cd/E24628_01/doc.121/e28814/cloud_part5.htm#sthref1171] illustrates some examples on creating VM and Assembly service instances via POSTing to either a Zone or a ServiceTemplate resource.
However, the documentation doesn't exactly specify nor indicate what are the attributes and/or "params" that ought to be included in such as request.
In the current interpretation of service instance creation requests (thus, POST content-type of a service instance with the intention to create a new instance of a service), we have denoted it as a "CREATE" or "DEPLOYMENT" to better synchronized with current IT nomenclature.
As part of the introspective nature of the Cloud API, the primary attributes/params of a "DEPLOYMENT" requests are included as part of the application/oracle.com.cloud.common.ServiceTemplate resource, which means each resource type extending the ServiceTemplate may choose to populate "deployment_params" attribute. Furthermore, for ServiceTemplate in the IaaS family (application/oracle.com.cloud.common.VMTemplate and application/oracle.com.cloud.common.AssemblyTemplate), we will always populate the "deployment_params" attribute.
Here are some examples: (all paths are relative to the EM end point)
<h4>Get the list of IaaS Service Templates to introspect</h4>
GET /em/cloud/service_family_type/iaas?service_templates
"service_templates" : {
"media_type" : "application/oracle.com.cloud.common.ServiceTemplate+json" ,
"total" : "5" ,
"elements" :
"uri" : "/em/cloud/iaas/servicetemplate/vm/oracle%3AdefaultService%3Aem%3Aprovisioning%3A1%3Acmp%3AVirtualization%3ATemplate%3AD7B887836B230A4BE0431780578C7C12%3A0.1" ,
"name" : "saved template from ssa" ,
"media_type" : "application/oracle.com.cloud.common.VMTemplate+json" ,
"type" : "Template"
"uri" : "/em/cloud/iaas/servicetemplate/vm/oracle%3AdefaultService%3Aem%3Aprovisioning%3A1%3Acmp%3AVirtualization%3ATemplate%3AD766060CF1D07533E0431780578CA840%3A0.1" ,
"name" : "Template1" ,
"media_type" : "application/oracle.com.cloud.common.VMTemplate+json" ,
"type" : "Template"
"uri" : "/em/cloud/iaas/servicetemplate/vm/oracle%3AdefaultService%3Aem%3Aprovisioning%3A1%3Acmp%3AVirtualization%3ATemplate%3AD7BDEC41C65F7C74E0431980578C221C%3A0.1" ,
"name" : "aaa" ,
"media_type" : "application/oracle.com.cloud.common.VMTemplate+json" ,
"type" : "Template"
"uri" : "/em/cloud/iaas/servicetemplate/assembly/oracle%3AdefaultService%3Aem%3Aprovisioning%3A1%3Acmp%3AVirtualization%3AAssembly%3AD766B6DD3BDE0F7BE0431780578CA8D8%3A0.1" ,
"name" : "Env Assembly" ,
"media_type" : "application/oracle.com.cloud.common.AssemblyTemplate+json" ,
"type" : "Assembly"
"uri" : "/em/cloud/iaas/servicetemplate/assembly/oracle%3AdefaultService%3Aem%3Aprovisioning%3A1%3Acmp%3AVirtualization%3AAssembly%3AD766898D34A66DCAE0431980578C55B6%3A0.1" ,
"name" : "sidb_asm" ,
"media_type" : "application/oracle.com.cloud.common.AssemblyTemplate+json" ,
"type" : "Assembly"
<h4>Select a VMTemplate to introspect the deployment parameters</h4>
GET /em/cloud/iaas/servicetemplate/vm/oracle%3AdefaultService%3Aem%3Aprovisioning%3A1%3Acmp%3AVirtualization%3ATemplate%3AD7B887836B230A4BE0431780578C7C12%3A0.1?deployment_params
"deployment_params" :
"name" : "zone" ,
"description" : "'zone' attribute is the URI of the zone that the 'application/oracle.com.cloud.common.VM' resource is to be created in" ,
"type" : "STRING" ,
"require" : "false" ,
"sensitive" : "false"
"name" : "based_on" ,
"description" : "'based_on' attribute is the URI of the service template or format String of the originated source which the deployed 'application/oracle.com.cloud.common.VM' resource is to be followed" ,
"type" : "STRING" ,
"require" : "false" ,
"sensitive" : "false"
"name" : "cpu" ,
"description" : "The information that determined how much 'CPU' is to be allocated to the deployed resource" ,
"type" : "LIST" ,
"require" : "false" ,
"sensitive" : "false"
"name" : "memory" ,
"description" : "The information that determined how much 'MEMORY' is to be allocated to the deployed resource" ,
"type" : "NUMBER" ,
"require" : "false" ,
"sensitive" : "false"
"name" : "disks" ,
"description" : "The list of disks to be included in the deployed resource" ,
"type" : "LIST" ,
"require" : "false" ,
"sensitive" : "false"
"name" : "params.domain_type" ,
"description" : "The domain type of the Virtual Machine" ,
"type" : "STRING" ,
"require" : "false" ,
"sensitive" : "false"
"name" : "params.network_profile" ,
"description" : "The identifier of the network profile to be used for the network instances of the Virtual Machine" ,
"type" : "STRING" ,
"require" : "false" ,
"sensitive" : "false"
"name" : "params.server_prefix" ,
"description" : "The server prefix to be specified for the Virtual Machine" ,
"type" : "STRING" ,
"require" : "true" ,
"sensitive" : "false"
"name" : "params.server_size" ,
"description" : "The name of the server instance size" ,
"type" : "STRING" ,
"require" : "false" ,
"sensitive" : "false"
"name" : "params.request_name" ,
"description" : "The request name to be tracked for the Virtual Machine creation" ,
"type" : "STRING" ,
"require" : "false" ,
"sensitive" : "false"
"name" : "params.request_description" ,
"description" : "The request description to be tracked for the Virtual Machine creation" ,
"type" : "STRING" ,
"require" : "false" ,
"sensitive" : "false"
"name" : "params.vnc_password" ,
"description" : "The VNC password for the Virtual Machine" ,
"type" : "STRING" ,
"require" : "true" ,
"sensitive" : "true"
"name" : "params.root_password" ,
"description" : "The Root password for the Virtual Machine" ,
"type" : "STRING" ,
"require" : "true" ,
"sensitive" : "true"
"name" : "params.start_vm" ,
"description" : "Whether or not the Virtual Machine should be started after creation" ,
"type" : "STRING" ,
"defaultValue" : "YES" ,
"require" : "false" ,
"sensitive" : "false"
"name" : "params.ha_enabled" ,
"description" : "Whether or not the Virtual Machine should be HA enabled" ,
"type" : "STRING" ,
"defaultValue" : "NO" ,
"require" : "false" ,
"sensitive" : "false"
"name" : "params.disks_overwrite" ,
"description" : "Whether or not the default Virtual Machine disks should be overwritten" ,
"type" : "STRING" ,
"defaultValue" : "NO" ,
"require" : "false" ,
"sensitive" : "false"
"name" : "params.networks" ,
"description" : "Whether or not the default Virtual Machine disks should be overwritten" ,
"type" : "LIST" ,
"require" : "false" ,
"sensitive" : "false"
<h4>Similarly, for Assembly Template </h4>
GET /em/cloud/iaas/servicetemplate/assembly/oracle%3AdefaultService%3Aem%3Aprovisioning%3A1%3Acmp%3AVirtualization%3AAssembly%3AD766B6DD3BDE0F7BE0431780578CA8D8%3A0.1?deployment_params
"deployment_params" :
"name" : "zone" ,
"description" : "'zone' attribute is the URI of the zone that the 'application/oracle.com.cloud.common.AssemblyInstance' resource is to be created in" ,
"type" : "STRING" ,
"require" : "false" ,
"sensitive" : "false"
"name" : "based_on" ,
"description" : "'based_on' attribute is the URI of the service template or format String of the originated source which the deployed 'application/oracle.com.cloud.common.AssemblyInstance' resource is to be followed" ,
"type" : "STRING" ,
"require" : "false" ,
"sensitive" : "false"
"name" : "deployment_plan" ,
"description" : "'deployment_plan' attribute describes the configuration of which the deployed 'application/oracle.com.cloud.common.AssemblyInstance' resource is to be used in the XML deployment plan format" ,
"type" : "STRING" ,
"require" : "false" ,
"sensitive" : "false"
One could think of some ways to use this information in its integration. In particular, when Enterprise Manager were upgraded to a newer version, additional optional parameters may be added or some existing parameters may no longer be needed. These changes may be automatically discovered via the above introspection.
For example, a client may cache the deployment parameters and before POSTing to create a new service instance, compare the API's deployment parameters with the cached copy to determine whether there are additional "require"="true" parameters. Even though Enterprise Manager will include missing required parameters/attributes in its 400 response, by introspecting deployment_parameters, a client can determine, a priori, what may be needed.

The following additional parameters may be specified (though all of them are optional) as part of the Assembly Instance creation request:
"name" : "params.assembly_instance_name" ,
"description" : "The name of the assembly instance" ,
"type" : "STRING" ,
"require" : "false" ,
"sensitive" : "false"
"name" : "params.request_name" ,
"description" : "The request name to be tracked for the Assembly Instance creation" ,
"type" : "STRING" ,
"require" : "false" ,
"sensitive" : "false"
"name" : "params.request_description" ,
"description" : "The request description to be tracked for the Assembly Instance creation" ,
"type" : "STRING" ,
"require" : "false" ,
"sensitive" : "false"
"name" : "params.vnc_password" ,
"description" : "The VNC password for all the Virtual Machines in the assembly" ,
"type" : "STRING" ,
"require" : "false" ,
"sensitive" : "true"
"name" : "params.root_password" ,
"description" : "The Root password for all the Virtual Machines in the assembly" ,
"type" : "STRING" ,
"require" : "false" ,
"sensitive" : "true"
"name" : "params.server_size" ,
"description" : "The name of the server instance size for all the Virtual Machines in the assembly" ,
"type" : "STRING" ,
"require" : "false" ,
"sensitive" : "false"
"name" : "params.network_profile" ,
"description" : "The id of the network profile for all the networks in all the Virtual Machines in the assembly" ,
"type" : "STRING" ,
"require" : "false" ,
"sensitive" : "false"
For example,
"params":{
"assembly_instance_name":"QA Assembly",
"request_name":"Quarterly Testing 1",
"request_description":"Here is the request to create an QA Assembly for Quarterly testing",
"vnc_password":"secret",
"root_password":"secret",
"server_size":"Small",
"network_profile":"oracle:defaultService:em:provisioning:1:netConfig:D7C43DB9969841F5E0431980578CB5C1"
When both "deployment_plan" and "params" are specified during Assembly Instance creation request, the values in the "params" attribute would take precedent. For example,if "deployment_plan" contained various server size specifications for the assembly while "params.server_size" were specified to be "Small", all Virtual Machines created would be of size "Small" instead of the values specified in the "deployment_plan".

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Dear Siva,
the values are dependent from the forecast stratey and forecast model.
The forecast strategy determines the method or the techniques that are used to create the forecast. You set the forecast strategy in the forecast profile.
There are some settings that you must make for certain forecast strategies. The table below shows you which settings these are. You make these settings either in the univariate forecast profile or under the Model and Parameters tabs of the Forecast view on the demand planning desktop.
Model initialization is the process by which the system determines the necessary model parameters for the chosen forecast model. These parameters are in following link:
http://help.sap.com/saphelp_scm50/helpdata/en/ac/216b74337b11d398290000e8a49608/frameset.htm
I hope this helps you further.
Regards,
Tibor

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