Avia, could you please create a JIRA issue for this?

On Mon, Jul 10, 2017 at 5:12 PM, Avia Efrat <a...@gigaspaces.com> wrote:

> Hello DJ,
>
> I ran the example you provided: https://github.com/djay8887/Ar
> ia-operationInputs
> [It should be noted that you can't just parse the service template
> kubernetes-deployment.yaml as is. I needed to create a folder named type
> and place kubernetes_type.yaml in there, as the import: section in your
> service templates contains `- *types*/kubernetes_type.yaml`]
>
> *Short answer:*
> You are correct, the example should pass, and we will change the code
> accordingly.
>
> *Longer answer + explanations:*
> I will separate my answer into three parts. I will repeat some of what was
> said before me, but I think it will help clear the situation.
> 1. The result of my run.
> 2. Why do we currently get this error.
> 3. Our revised understanding of the TOSCA spec regarding the required field
> of node type operation inputs.
>
> *1.* *The result of my run:*
> The commands I ran were:
> aria plugins install sample-1.0.0-py27-none-any.wgn
> aria service-templates store kubernetes-deployment.yaml dj
> aria services create -t dj dj
> aria executions start -s dj install
> after running the last command I got:
> Declared parameters "labels" have not been provided values
>
> *2.* *Why do we currently get this error:*
> First, let my just clarify, that this error has no relation whatsoever to
> the contents of the inputs section under topology_template.
> We are dealing here only with the inputs section of an operation, which is
> section 3.5.13 Operation Definition <https://goo.gl/g5bMtV>.
> Currently, when we execute a workflow (aria executions start ...), we check
> the inputs of each operation in the following manner (ignoring interface
> inputs for now):
> we check that every input defined in the input section of the node template
> operation, whether the input is required or not has a value, has a value.
> This check is done in the merge_parameters_value function, inside
> aria/modelling/utils, so you can check the logic yourself.
>
> Anyway, these values can be supplied directly from the service template, or
> in an indirect way via execution inputs, or programmatically when creating
> workflow tasks. The latter method shouldn't concern us now, as we are
> dealing with the operation inputs that were provided in the inputs section
> of the operation.
>
> So, in conclusion, we get this error since the labels input is not assigned
> a value in the inputs section of the operation inside the node template.
> This happens even if the input is defined as required: false in the inputs
> section of the operation inside the node *type*.
>
> *3. **Our revised understanding of the TOSCA spec regarding the required
> field operation definition inputs:*
> After rechecking the spec, we feel that an operation input that has
> required:
> false  indeed allows it not to be defined in the corresponding operation in
> the service template. We base this on section 3.5.13.1 Operation Definition
> keyname <https://goo.gl/g5bMtV>. This section clearly state the node type
> operation inputs are of type property definitions (3.5.8)
> <http://docs.oasis-open.org/tosca/TOSCA-Simple-Profile-
> YAML/v1.0/os/TOSCA-Simple-Profile-YAML-v1.0-os.html#
> DEFN_ELEMENT_PROPERTY_DEFN>
> .
>
> Therefore, the required field of a node type operation input is the same as
> the required field in a node type property.
>
> So, just as you can omit in a node template property that has required:
> false in its corresponding node type property, you can omit a node template
> operation input that has required: false in its corresponding node type
> operation input.
>
>
>
>
> On Mon, Jul 3, 2017 at 10:17 PM, Tal Liron <t...@gigaspaces.com> wrote:
>
> > Oops, it seems your email from before was somehow tagged as read by
> > mistake, so I missed it. I will get to it after the US holiday!
> >
> > On Mon, Jul 3, 2017 at 4:21 AM, D Jayachandran <
> > d.jayachand...@ericsson.com>
> > wrote:
> >
> > > Hi Tal,
> > >
> > > Have you got a chance to look into this below issue ?
> > >
> > > Regards,
> > > DJ
> > > -----Original Message-----
> > > From: D Jayachandran [mailto:d.jayachand...@ericsson.com]
> > > Sent: Monday, June 05, 2017 3:44 PM
> > > To: dev@ariatosca.incubator.apache.org
> > > Subject: RE: Query on operation inputs
> > >
> > > Hi Tal,
> > >
> > > Please find below the git repo of my example.
> > >
> > > https://github.com/djay8887/Aria-operationInputs
> > >
> > > regards,
> > > DJ
> > >
> > > -----Original Message-----
> > > From: Tal Liron [mailto:t...@gigaspaces.com]
> > > Sent: Thursday, June 01, 2017 9:59 PM
> > > To: dev@ariatosca.incubator.apache.org
> > > Subject: Re: Query on operation inputs
> > >
> > > I'm still a bit confused by all this. DJ, could you possibly create a
> > > quick git repo with your complete example to make sure we're all on the
> > > same page here?
> > >
> > > On Thu, Jun 1, 2017 at 7:10 AM, Ran Ziv <r...@gigaspaces.com> wrote:
> > >
> > > > Right, it makes more sense now :) But now I simply have to say again
> > > > that as far as I can tell this should in fact be the intended
> behavior.
> > > >
> > > > What would you rather happen? the "labels" parameter be assigned with
> > > > "None" instead?
> > > > We considered this but part of the problem here is that the
> > > > information about whether an input is required or not is no longer
> > > > available at this stage so it's impossible to know whether to use
> > "None"
> > > or raise an error.
> > > > Tal and I have talked about it in the past, and from what I remember,
> > > > Tal said the "required" field information in fact should not be
> > > > stored, and is only relevant for parsing phase. It is possible I'm
> > > > getting this wrong though :)
> > > >
> > > > I'm open for changes here as it is a somewhat confusing behavior -
> > > > although I think it does make sense after all.
> > > >
> > > >
> > > >
> > > > On Thu, Jun 1, 2017 at 3:04 PM, D Jayachandran <
> > > > d.jayachand...@ericsson.com>
> > > > wrote:
> > > >
> > > > > Hi Ran/Tal,
> > > > >
> > > > > I was wrong, Tal's branch still throws the validation error (I was
> > > > loading
> > > > > a different service template) :). So the issue which I told still
> > > > > exists
> > > > >
> > > > > [root@DJ-DEV tal-test]# python /root/tal-test/incubator-
> > > > ariatosca/aria/cli/main.py
> > > > > executions start install -s s2
> > > > > Declared parameters "labels" have not been provided values
> > > > >
> > > > > Regards,
> > > > > DJ
> > > > >
> > > > > -----Original Message-----
> > > > > From: Ran Ziv [mailto:r...@gigaspaces.com]
> > > > > Sent: Thursday, June 01, 2017 5:24 PM
> > > > > To: dev@ariatosca.incubator.apache.org
> > > > > Subject: Re: Query on operation inputs
> > > > >
> > > > > Again, there's a difference between the "required" validation and
> > > > > the actual runtime validation. the runtime one cannot be done
> during
> > > > > instantiation phase, which is why there are two separate
> validations.
> > > > >
> > > > > I do not know how come Tal's branch (which by now has been merged
> to
> > > > > master) helped fixing your issue, so I might have misunderstood
> > > > > something about your problem :)
> > > > >
> > > > > Ran
> > > > >
> > > > > On Thu, Jun 1, 2017 at 2:11 PM, D Jayachandran <
> > > > > d.jayachand...@ericsson.com>
> > > > > wrote:
> > > > >
> > > > > > Hi Tal,
> > > > > >
> > > > > > I did test your branch  https://github.com/apache/
> > > > > > incubator-ariatosca/tree/ARIA-149-functions-in-operation-
> configura
> > > > > > tion and it seems to have the fix for operation/interface inputs.
> > > > > >
> > > > > > Regards,
> > > > > > DJ
> > > > > > -----Original Message-----
> > > > > > From: D Jayachandran
> > > > > > Sent: Thursday, June 01, 2017 4:40 PM
> > > > > > To: dev@ariatosca.incubator.apache.org
> > > > > > Subject: RE: Query on operation inputs
> > > > > >
> > > > > > Hi Ran,
> > > > > >
> > > > > > The validation of operation inputs is also done during
> > instantiation.
> > > > > > Please find below.
> > > > > >
> > > > > > [root@DJ-DEV tal-test]# python
> > > > > > /root/tal-test/incubator-ariatosca/aria/cli/main.py
> > > > > > service-templates store /root/tosca_simple_yaml_
> > > > > > plugin/kubernetes-deployment.yaml st-3 Storing service template
> > > > st-3...
> > > > > > Validation issues:
> > > > > >   4: interface definition "Standard" does not assign a value to a
> > > > > > required operation input "create.name" in "web_app"
> > > > > >
> > > > > > @"/root/tosca_simple_yaml_plugin/kubernetes-deployment.
> yaml":64:25
> > > > > > Failed to parse service template
> > > > > >
> > > > > >
> > > > > > I think the branch Tal provided  https://github.com/apache/
> > > > > > incubator-ariatosca/tree/ARIA-149-functions-in-operation-
> configura
> > > > > > tion has fixed the issue on operation inputs.
> > > > > >
> > > > > > Regards,
> > > > > > DJ
> > > > > >
> > > > > > -----Original Message-----
> > > > > > From: Ran Ziv [mailto:r...@gigaspaces.com]
> > > > > > Sent: Thursday, June 01, 2017 2:27 PM
> > > > > > To: dev@ariatosca.incubator.apache.org
> > > > > > Subject: Re: Query on operation inputs
> > > > > >
> > > > > > I think there's some confusion about different types of inputs.
> > > > > > The validation on inputs that is done during parsing (actually
> > > > > > "instantiation") stage is for the service's inputs, not
> operations.
> > > > > > Execution and operation inputs (or more broadly, arguments) are
> > > > > > validated before an execution is run.
> > > > > >
> > > > > >
> > > > > > On Tue, May 30, 2017 at 8:48 AM, D Jayachandran <
> > > > > > d.jayachand...@ericsson.com
> > > > > > > wrote:
> > > > > >
> > > > > > > Hi Ran,
> > > > > > >
> > > > > > > I think Tal as updated, it might be possibly a bug here. May be
> > > > > > > we all should come to common understanding.
> > > > > > >
> > > > > > > As I updated earlier, since the inputs validation are
> completing
> > > > > > > during parsing stage, I don’t feel why the validation is
> > > > > > > required again during orchestration time ?
> > > > > > > Does the TOSCA spec actually refers the 2nd points of yours ?
> > > > > > > (The operation inputs must either have a default value in the
> > > > > > > type definition or be supplied with a value in the actual
> > > > > > > operation
> > > > > > > definition)
> > > > > > >
> > > > > > >
> > > > > > > Regards,
> > > > > > > DJ
> > > > > > >
> > > > > > > -----Original Message-----
> > > > > > > From: Ran Ziv [mailto:r...@gigaspaces.com]
> > > > > > > Sent: Sunday, May 28, 2017 6:14 PM
> > > > > > > To: dev@ariatosca.incubator.apache.org
> > > > > > > Subject: Re: Query on operation inputs
> > > > > > >
> > > > > > > I've reviewed your example, and I think either I'm missing
> > > > > > > something or my original explanation still applies:
> > > > > > >
> > > > > > >   1. The validation at orchestration time for whether required
> > > > > > > inputs have been specified does not deal with the "required"
> > > > > > > flag at all (actually, the flag never makes it past the parsing
> > > > > > > stage and into the
> > > > > > storage models).
> > > > > > >
> > > > > > >   2. For operation inputs to validate successfully, each input
> > > > > > > must either have a default value in the type definition or be
> > > > > > > supplied with a value in the actual operation definition. In
> > > > > > > your case, both "labels" and "isService" for example didn't
> have
> > > > > > > a default value set in the type definition (as opposed to
> > > > > > > "target_host" for example) -
> > > > > > However, "isService"
> > > > > > > was set to "true" in the actual operation definition, while
> > > "labels"
> > > > > > > wasn't assigned with any such value - Which is why you received
> > > > > > > the validation error for a missing required input over the
> > "labels"
> > > > > > > operation input.
> > > > > > >
> > > > > > >
> > > > > > > Does this make sense?
> > > > > > >
> > > > > > >
> > > > > > > On Fri, May 26, 2017 at 7:26 PM, Tal Liron <t...@gigaspaces.com
> >
> > > > wrote:
> > > > > > >
> > > > > > > > OK, I see now -- the error you are getting is about the
> > > > > > > > operation inputs, not the topology inputs which are
> different.
> > > > > > > >
> > > > > > > > You may have discovered a bug here. It seems like you're
> doing
> > > > > > > > the right thing and giving values to all these inputs, so it
> > > > > > > > should not be complaining.
> > > > > > > >
> > > > > > > > I am actually working on a PR right now that makes some
> > > > > > > > significant changes to this mechanism, but it's not merged
> > > > > > > > yet. I don't mean to waste your time, but I would appreciate
> > > > > > > > if you could test it out for me in your environment. Here is
> > the
> > > branch to use:
> > > > > > > >
> > > > > > > > https://github.com/apache/incubator-ariatosca/tree/ARIA-
> > > > > > > > 149-functions-in-operation-configuration
> > > > > > > >
> > > > > > > >
> > > > > > > > On Fri, May 26, 2017 at 4:53 AM, D Jayachandran <
> > > > > > > > d.jayachand...@ericsson.com
> > > > > > > > > wrote:
> > > > > > > >
> > > > > > > > > Hi Tal,
> > > > > > > > >
> > > > > > > > > Thanks for your email.
> > > > > > > > >
> > > > > > > > > With the same example you took with my inputs "isService" &
> > > > > "image".
> > > > > > > > > ARIA has a problem when I don’t specify "isService" which
> is
> > > > > > > > > defined as
> > > > > > > > > required: false.
> > > > > > > > >
> > > > > > > > > Please find just the different inputs used in my example (
> > > > > > > > > topology, node type  and node template)
> > > > > > > > >
> > > > > > > > > TOPOLOGY INPUTS
> > > > > > > > >
> > > > > > > > >     inputs:
> > > > > > > > >         web_app_name:
> > > > > > > > >             type: string
> > > > > > > > >             value: tosca-webapp
> > > > > > > > >
> > > > > > > > >         web_app_image:
> > > > > > > > >             type: string
> > > > > > > > >             value: kuber-master:5000/webwithdbinput
> > > > > > > > >
> > > > > > > > >         web_app_port:
> > > > > > > > >             type: integer
> > > > > > > > >             value: 80
> > > > > > > > >
> > > > > > > > >         db_name:
> > > > > > > > >             type: string
> > > > > > > > >             value: tosca-database
> > > > > > > > >
> > > > > > > > >         db_image:
> > > > > > > > >             type: string
> > > > > > > > >             value: kuber-master:5000/dbforweb
> > > > > > > > >
> > > > > > > > >         db_port:
> > > > > > > > >             type: integer
> > > > > > > > >             value: 3306
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > NODE-TYPE INPUTS
> > > > > > > > >
> > > > > > > > >                 create:
> > > > > > > > >                         inputs:
> > > > > > > > >                             name:
> > > > > > > > >                                 type: string
> > > > > > > > >                                 required: true
> > > > > > > > >                             image:
> > > > > > > > >                                 type: string
> > > > > > > > >                                 required: true
> > > > > > > > >                             exposed_port:
> > > > > > > > >                                 type: integer
> > > > > > > > >                                 required: false
> > > > > > > > >                             target_port:
> > > > > > > > >                                 type: integer
> > > > > > > > >                                 required: false
> > > > > > > > >                                 default: 8080
> > > > > > > > >                             target_host:
> > > > > > > > >                                 type: string
> > > > > > > > >                                 required: false
> > > > > > > > >                                 default: test
> > > > > > > > >                             labels:
> > > > > > > > >                                 type: string
> > > > > > > > >                                 required: false
> > > > > > > > >                             isService:
> > > > > > > > >                                 type: boolean
> > > > > > > > >                                 required: false
> > > > > > > > >
> > > > > > > > > NODE-TEMPLATE INPUTS
> > > > > > > > >
> > > > > > > > >             interfaces:
> > > > > > > > >                 Standard:
> > > > > > > > >                     create:
> > > > > > > > >                         inputs:
> > > > > > > > >                             name: { get_input:
> web_app_name }
> > > > > > > > >                             image: { get_property: [
> > > > > > > > > web_app, image]
> > > > > > }
> > > > > > > > >                             exposed_port: { get_property: [
> > > > > > > > > web_app,
> > > > > > > > port]
> > > > > > > > > }
> > > > > > > > >                             target_host: { get_property: [
> > > > > > > > > database,
> > > > > > > > name]
> > > > > > > > > }
> > > > > > > > >                             target_port: { get_property: [
> > > > > > > > > database,
> > > > > > > > port]
> > > > > > > > > }
> > > > > > > > >                             isService: true
> > > > > > > > >
> > > > > > > > > All my TOPOLOGY templates have a value, so it's not an
> issue
> > > > > > > > > in my
> > > > > > > case.
> > > > > > > > > Only "name" and "image" from my NODE-TYPE have the required
> > > > > > > > > definition as "true". So I Must mandatory have these input
> > > > > > > > > specified in my
> > > > > > > > NODE-TEMPLATE
> > > > > > > > > which I have specified.
> > > > > > > > > Remaining NODE-TYPE inputs "exposed_port", "target_port",
> > > > > > > > > "target_host",
> > > > > > > > "
> > > > > > > > > labels"  and "isService" have the required definition as
> > > "false".
> > > > > > > > > Hence
> > > > > > > > I
> > > > > > > > > may or may not specify them in my NODE-TEMPLATE input
> > section.
> > > > > > > > > Except "labels" I have metioned all my optional outputs. I
> > > > > > > > > expect my service to be started without any issue but it
> > > > > > > > > fails with the error
> > > > > > > > "label"
> > > > > > > > > is not specified. This is why I find ARIA is having a
> > problem.
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > # python /root/incubator-ariatosca/aria/cli/main.py
> > > > > > > > > executions start -s
> > > > > > > > > demo-sr-1 install
> > > > > > > > > Required inputs [u'labels'] have not been specified -
> > > > > > > > > expected
> > > > > > inputs:
> > > > > > > > > [u'isService', u'name', u'exposed_port', u'image',
> > > > > > > > > u'labels', u'target_port', u'target_host']
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > Regards,
> > > > > > > > > DJ
> > > > > > > > > -----Original Message-----
> > > > > > > > > From: Tal Liron [mailto:t...@gigaspaces.com]
> > > > > > > > > Sent: Thursday, May 25, 2017 11:19 PM
> > > > > > > > > To: dev@ariatosca.incubator.apache.org
> > > > > > > > > Subject: Re: Query on operation inputs
> > > > > > > > >
> > > > > > > > > Hi DJ, let's try to look at these issues one at a time.
> > > > > > > > >
> > > > > > > > > I got your YAML to parse OK, but had to change it around a
> > > bit...
> > > > > > > > > it
> > > > > > > > would
> > > > > > > > > help if you used a complete example here, and also if it
> > > > > > > > > would be much shorter to demonstrate the specific issue you
> > > > > > > > > are asking
> > > > > about.
> > > > > > > > > There's a lot going on in this example and you are asking a
> > > > > > > > > few different
> > > > > > > > questions.
> > > > > > > > >
> > > > > > > > > The error message you are getting is not about operation
> > > > > > > > > inputs, but
> > > > > > > > about
> > > > > > > > > topology template inputs. I can't help much here unless I
> > > > > > > > > see those input
> > > > > > > > > definitions: they do not appear in your YAML fragment. In
> > > > > > > > > general, see section 3.8.2.1 in the TOSCA spec. Values for
> > > > > > > > > topology template inputs
> > > > > > > > must
> > > > > > > > > come from an external source, and indeed in this case you
> > > > > > > > > are providing them via the CLI. ARIA makes sure that all
> > > > > > > > > required topology template inputs have a value, and that it
> > > > > > > > > is a valid value for the type. So,
> > > > > > > > that's
> > > > > > > > > the error you are seeing.
> > > > > > > > >
> > > > > > > > > The inputs we *do* see in your YAML fragment are input
> > > > > > > > > definitions at the node type and input assignments at the
> > > > > > > > > node template. These work differently from topology
> template
> > > > > > > > > inputs, because their values do not
> > > > > > > > come
> > > > > > > > > from an external source directly (though this can be
> > > > > > > > > indirect via
> > > > > > > > get_input
> > > > > > > > > and other intrinsic functions).
> > > > > > > > >
> > > > > > > > > According to the spec you quote (3.5.8.2) , the key
> > "required"
> > > > > > > > > is
> > > > > > > > optional
> > > > > > > > > in YAML, meaning that you do not have to specify it. Its
> > > > > > > > > default value is "true". So, unless you specify "required:
> > > > > > > > > false", that property is required. So actually all your
> > > "required" true"
> > > > > > > > > lines are redundant (informative, but don't change
> > > > functionality).
> > > > > > > > >
> > > > > > > > > So, let's look at your "isService" input. At the node type,
> > > > > > > > > it is defined as required: false. And indeed, if at the
> node
> > > > > > > > > template I don't assign a value to it, ARIA has no problem.
> > > > > > > > > However, if you do not assign a value
> > > > > > > > to
> > > > > > > > > a required input, say "image", then ARIA would be unhappy.
> > > > > > > > >
> > > > > > > > > I hope this is clear, though I have a feeling you are
> asking
> > > > > > > > > about something else which I'm not quite understanding.
> > > > > > > > > Again, a shorter and complete example would help
> demonstrate
> > > > > > > > > what you
> > > > mean.
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > On Thu, May 25, 2017 at 9:56 AM, D Jayachandran <
> > > > > > > > > d.jayachand...@ericsson.com
> > > > > > > > > > wrote:
> > > > > > > > >
> > > > > > > > > > Hi Ran,
> > > > > > > > > >
> > > > > > > > > > When I refer the TOSCA spec, it says
> > > > > > > > > >
> > > > > > > > > > " An optional key that declares a property as required
> > > > > > > > > > (true) or not (false)."
> > > > > > > > > > property_required: represents an optional boolean value
> > > > > > > > > > (true or
> > > > > > > > > > false) indicating whether or not the property is
> required.
> > > > > > > > > > If this keyname is not present on a property definition,
> > > > > > > > > > then the property SHALL be considered required (i.e.,
> true)
> > > by default.
> > > > > > > > > >
> > > > > > > > > > It is not clear to whom this property is required or not
> ?
> > > > > > > > > >
> > > > > > > > > > With your argument, it seems we always need to provide a
> > > > > > > > > > default value to an input, when we don’t declare in my
> > > > > > > > > > service
> > > > > template.
> > > > > > > > > > Is my understanding correct here ?
> > > > > > > > > > But the TOSCA spec says the default value is always an
> > > > > > > > > > optional
> > > > > > one.
> > > > > > > > > > Also since the parser validates the service template
> > > > > > > > > > inputs according to the "required" field am not sure why
> > > > > > > > > > we need another validation during the execution ?
> > > > > > > > > >
> > > > > > > > > > I also don’t find any reference in TOSCA spec which says,
> > > > > > > > > > all inputs defined in node type be declared in node
> > > > > > > > > > template to be used by any operation. Could you please
> > > > > > > > > > help me with that reference
> > > > > > > in TOSCA spec ?
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > Regards,
> > > > > > > > > > DJ
> > > > > > > > > >
> > > > > > > > > > -----Original Message-----
> > > > > > > > > > From: Ran Ziv [mailto:r...@gigaspaces.com]
> > > > > > > > > > Sent: Thursday, May 25, 2017 5:16 PM
> > > > > > > > > > To: dev@ariatosca.incubator.apache.org
> > > > > > > > > > Subject: Re: Query on operation inputs
> > > > > > > > > >
> > > > > > > > > > Yes, I understand the confusion here. The issue is that,
> > > > > > > > > > despite its name, the "required" field isn't what defines
> > > > > > > > > > whether an input is optional or not
> > > > > > > > > > - it is only relevant during the parsing phase (This is
> > > > > > > > > > according to our understanding of the TOSCA spec. Tal
> > > > > > > > > > could probably expand more on
> > > > > > > > > this).
> > > > > > > > > > What's relevant for deciding whether an input is required
> > > > > > > > > > or not for actual execution is whether it has a default
> > > > > > > > > > value - so all inputs would have a value when the actual
> > > > > > > > > > execution
> > > > takes
> > > > > place.
> > > > > > > > > >
> > > > > > > > > > I hope this helps clearing this confusing issue..
> > > > > > > > > >
> > > > > > > > > > Ran
> > > > > > > > > >
> > > > > > > > > > On Thu, May 25, 2017 at 2:08 PM, D Jayachandran <
> > > > > > > > > > d.jayachand...@ericsson.com
> > > > > > > > > > > wrote:
> > > > > > > > > >
> > > > > > > > > > > Hi Ran,
> > > > > > > > > > >
> > > > > > > > > > > Thanks for your response.
> > > > > > > > > > >
> > > > > > > > > > > In my case, I have defined the inputs as optional under
> > > > > > > > > > > the create operation of my custom node type.
> > > > > > > > > > > Since it is an optional input, I haven't declared it in
> > > > > > > > > > > my
> > > > > > > > > node-template.
> > > > > > > > > > > I assume optional input may or may not be declared in a
> > > > > > > > > > > service template
> > > > > > > > > > ?
> > > > > > > > > > > Am I missing something here ?
> > > > > > > > > > >
> > > > > > > > > > > Please find below the node type and node template in my
> > > case.
> > > > > > > > > > >
> > > > > > > > > > > # python /root/incubator-ariatosca/aria/cli/main.py
> > > > > > > > > > > executions start -s
> > > > > > > > > > > demo-sr-1 install
> > > > > > > > > > > Required inputs [u'labels'] have not been specified -
> > > > > > > > > > > expected
> > > > > > > > inputs:
> > > > > > > > > > > [u'isService', u'name', u'exposed_port', u'image',
> > > > > > > > > > > u'labels', u'target_port', u'target_host']
> > > > > > > > > > >
> > > > > > > > > > > Node-type
> > > > > > > > > > >
> > > > > > > > > > > node_types:
> > > > > > > > > > >     test.nodes.Container.Application:
> > > > > > > > > > >         derived_from: tosca.nodes.Root
> > > > > > > > > > >         properties:
> > > > > > > > > > >             name:
> > > > > > > > > > >               type: string
> > > > > > > > > > >               required: true
> > > > > > > > > > >             image:
> > > > > > > > > > >               type: string
> > > > > > > > > > >               required: true
> > > > > > > > > > >             port:
> > > > > > > > > > >               type: integer
> > > > > > > > > > >               required: false
> > > > > > > > > > >         interfaces:
> > > > > > > > > > >             Standard:
> > > > > > > > > > >                 type: tosca.interfaces.node.
> > > > lifecycle.Standard
> > > > > > > > > > >                 create:
> > > > > > > > > > >                         inputs:
> > > > > > > > > > >                             name:
> > > > > > > > > > >                                 type: string
> > > > > > > > > > >                                 required: true
> > > > > > > > > > >                             image:
> > > > > > > > > > >                                 type: string
> > > > > > > > > > >                                 required: true
> > > > > > > > > > >                             exposed_port:
> > > > > > > > > > >                                 type: integer
> > > > > > > > > > >                                 required: false
> > > > > > > > > > >                             target_port:
> > > > > > > > > > >                                 type: integer
> > > > > > > > > > >                                 required: false
> > > > > > > > > > >                             target_host:
> > > > > > > > > > >                                 type: integer
> > > > > > > > > > >                                 required: false
> > > > > > > > > > >                             labels:
> > > > > > > > > > >                                 type: string
> > > > > > > > > > >                                 required: false
> > > > > > > > > > >                             isService:
> > > > > > > > > > >                                 type: boolean
> > > > > > > > > > >                                 required: false
> > > > > > > > > > >                         implementation:
> > > > > > > > > > >                             primary: sample >
> > > > > > > > > > > sample.samplemethod
> > > > > > > > > > >
> > > > > > > > > > > Node template:
> > > > > > > > > > >
> > > > > > > > > > >         web_app:
> > > > > > > > > > >             type: test.nodes.Container.Application
> > > > > > > > > > >             properties:
> > > > > > > > > > >                 name: { get_input: web_app_name }
> > > > > > > > > > >                 image: { get_input: web_app_image }
> > > > > > > > > > >                 port: { get_input: web_app_port }
> > > > > > > > > > >             requirements:
> > > > > > > > > > >                 - dependency:
> > > > > > > > > > >                       node: database
> > > > > > > > > > >                       relationship:
> > > > > > > > > > >                           type:
> > > tosca.relationships.DependsOn
> > > > > > > > > > >             interfaces:
> > > > > > > > > > >                 Standard:
> > > > > > > > > > >                      create:
> > > > > > > > > > >                         inputs:
> > > > > > > > > > >                             name: { get_input:
> > > web_app_name }
> > > > > > > > > > >                             image: { get_property: [
> > > > > > > > > > > web_app, image]
> > > > > > > > }
> > > > > > > > > > >                             exposed_port: {
> > > > > > > > > > > get_property: [ web_app, port] }
> > > > > > > > > > >                             target_host: {
> get_property:
> > > > > > > > > > > [ database, name] }
> > > > > > > > > > >                             target_port: {
> get_property:
> > > > > > > > > > > [ database, port] }
> > > > > > > > > > >                             isService: true
> > > > > > > > > > >
> > > > > > > > > > > Regards,
> > > > > > > > > > > DJ
> > > > > > > > > > >
> > > > > > > > > > > -----Original Message-----
> > > > > > > > > > > From: Ran Ziv [mailto:r...@gigaspaces.com]
> > > > > > > > > > > Sent: Thursday, May 25, 2017 4:07 PM
> > > > > > > > > > > To: dev@ariatosca.incubator.apache.org
> > > > > > > > > > > Subject: Re: Query on operation inputs
> > > > > > > > > > >
> > > > > > > > > > > Hi,
> > > > > > > > > > >
> > > > > > > > > > > Weird, I remember responding to this mail before, but
> it
> > > > > > > > > > > doesn't seem like I have.
> > > > > > > > > > > In any case, it is indeed our intention that no inputs
> > > > > > > > > > > may be passed into operations unless they have been
> > > > > > > > > > > clearly declared in the
> > > > > > > > > > service-template.
> > > > > > > > > > > ARIA opts to be a strict implementation of TOSCA
> > > > > > > > > > > wherever
> > > > > > possible.
> > > > > > > > > > >
> > > > > > > > > > > Ran
> > > > > > > > > > >
> > > > > > > > > > > On Thu, May 25, 2017 at 1:22 PM, D Jayachandran <
> > > > > > > > > > > d.jayachand...@ericsson.com
> > > > > > > > > > > > wrote:
> > > > > > > > > > >
> > > > > > > > > > > > Hi,
> > > > > > > > > > > >
> > > > > > > > > > > > The latest Apache-aria is throwing a validation error
> > > > > > > > > > > > during the execution of a service.
> > > > > > > > > > > > It demands all the operation inputs defined in a node
> > > > > > > > > > > > type be declared in the service template though they
> > > > > > > > > > > > are optional
> > > > > > inputs.
> > > > > > > > > > > > Could you please let us know if this change was
> > > > intentional ?
> > > > > > > > > > > >
> > > > > > > > > > > >
> > > > > > > > > > > > Regards,
> > > > > > > > > > > > DJ(D Jayachandran)
> > > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > --
> > > > > > > > > Tal Liron
> > > > > > > > > Senior Engineer
> > > > > > > > > t...@gigaspaces.com | +1 (773) 828-9339 Cloudify |
> > > > > > > > > http://getcloudify.org
> > > > > > > > > <http://getcloudify.org?utm_source=signaturesatori&utm_
> > > > > > > > > medium=email&utm_campaign=general_signature>
> > > > > > > > >
> > > > > > > > > <https://twitter.com/CloudifySource>
> > > > > > > > > <https://www.linkedin.com/groups/8467478>
> > > > > > > > > <https://github.com/cloudify-cosmo>   <
> > > > > https://github.com/cloudify-
> > > > > > > cosmo
> > > > > > > > >
> > > > > > > > > [image: Azure Webinar]
> > > > > > > > > <http://getcloudify.org/webinars/Azure-plugin-for-
> > > > > > > > > cloudify-webinar.html?utm_source=signaturesatori&utm_
> > > > > > > > > medium=email&utm_campaign=general_signature>
> > > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > --
> > > > > > > > Tal Liron
> > > > > > > > Senior Engineer
> > > > > > > > t...@gigaspaces.com | +1 (773) 828-9339 Cloudify |
> > > > > > > > http://getcloudify.org
> > > > > > > > <http://getcloudify.org?utm_source=signaturesatori&utm_
> > > > > > > > medium=email&utm_campaign=general_signature>
> > > > > > > >
> > > > > > > > <https://twitter.com/CloudifySource>
> > > > > > > > <https://www.linkedin.com/groups/8467478>
> > > > > > > > <https://github.com/cloudify-cosmo>   <
> > > > https://github.com/cloudify-
> > > > > > cosmo
> > > > > > > >
> > > > > > > > [image: Azure Webinar]
> > > > > > > > <http://getcloudify.org/webinars/Azure-plugin-for-
> > > > > > > > cloudify-webinar.html?utm_source=signaturesatori&utm_
> > > > > > > > medium=email&utm_campaign=general_signature>
> > > > > > > >
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> > >
> > >
> > > --
> > > Tal Liron
> > > Senior Engineer
> > > t...@gigaspaces.com | +1 (773) 828-9339
> > > Cloudify | http://getcloudify.org
> > > <http://getcloudify.org?utm_source=signaturesatori&utm_
> > > medium=email&utm_campaign=general_signature>
> > >
> > > <https://twitter.com/CloudifySource>
> > > <https://www.linkedin.com/groups/8467478>
> > > <https://github.com/cloudify-cosmo>   <https://github.com/cloudify-
> cosmo
> > >
> > > [image: Azure Webinar]
> > > <http://getcloudify.org/webinars/Azure-plugin-for-
> > > cloudify-webinar.html?utm_source=signaturesatori&utm_
> > > medium=email&utm_campaign=general_signature>
> > >
> >
> >
> >
> > --
> > Tal Liron, Senior Solutions Architect <http://cloudify.co>
> > ------------------------------
> > M: +1-312-375-8299 http://cloudify.co @cloudifysource
> > <https://twitter.com/CloudifySource>
> > <https://www.linkedin.com/company-beta/17918192/>
> > <https://github.com/cloudify-cosmo>
> > <https://www.youtube.com/cloudifysource>
> >
>
>
>
> --
> Avia Efrat
> SW Engineer
> a...@gigaspaces.com | +972546204553
> Cloudify | http://getcloudify.org
> <http://getcloudify.org?utm_source=signaturesatori&utm_
> medium=email&utm_campaign=general_signature>
>
> <https://twitter.com/CloudifySource>
> <https://www.linkedin.com/groups/8467478>
> <https://github.com/cloudify-cosmo>   <https://github.com/cloudify-cosmo>
> [image: Azure Webinar]
> <http://getcloudify.org/webinars/Azure-plugin-for-
> cloudify-webinar.html?utm_source=signaturesatori&utm_
> medium=email&utm_campaign=general_signature>
>

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