The removal on the call to install_aria_extensions does solve the problem in your case, however this might raise other issue. For example: writing a process executor extension would have no effect if you'd remove the `install_aria_extensions` function call.
The actual problem is caused because you try to pass a complex data_type, which get pickled. in the unpicking process the extension gets loaded automatically, and then it get loaded again via the `install_aria_extensions`. Indeed this is a bug we need to address (I've opened a JIRA ticket here <https://issues.apache.org/jira/browse/ARIA-432>). On Wed, Dec 6, 2017 at 8:59 AM Srinidhi Srivatsan <srinidhi.srivat...@globallogic.com.invalid> wrote: > Hi, > > > > We have observed runtime error “Re-definition of YAML 1.1” error while > executing the following service template. This happens when we define a > complex type as input into an operation but the first entry must be an > intrinsic function even if the type has been defined as string. We think it > maybe because of the install_aria_extensions being called twice. When > commenting out the “install_aria_extensions” in process.py(executor), > execution succeeds. > > > > tosca_definitions_version: tosca_simple_yaml_1_0 > > > > data_types: > > my.datatypes.operation.inputs.Template: > > derived_from: tosca.datatypes.Root > > properties: > > path: > > type: string > > output: > > type: my.datatypes.operation.inputs.Template.Output > > required: false > > > > my.datatypes.operation.inputs.Template.Output: > > derived_from: tosca.datatypes.Root > > properties: > > runtime_property: > > type: string > > required: false > > remote_file: > > type: my.datatypes.operation.inputs.Template.Output.RemoteFile > > required: false > > > > my.datatypes.operation.inputs.Template.Output.RemoteFile: > > derived_from: tosca.datatypes.Root > > properties: > > hostname: > > type: string > > required: false > > username: > > type: string > > required: false > > password: > > type: string > > required: false > > path: > > type: string > > required: false > > > > node_types: > > my.nodes.BGW: > > derived_from: tosca.nodes.Root > > properties: > > host: > > type: string > > description: bgw host address > > interfaces: > > Standard: > > type: tosca.interfaces.node.lifecycle.Standard > > configure: > > implementation: scripts/test.py > > inputs: > > templates: > > type: list > > entry_schema: > > type: my.datatypes.operation.inputs.Template > > description: "BGW configuration templates" > > > > topology_template: > > > > node_templates: > > bgw: > > type: my.nodes.BGW > > properties: > > host: "{get_input: BGW_HOST }" > > interfaces: > > Standard: > > configure: > > inputs: > > templates: > > - path: "configuration-templates/bgw_epg_add" > > output: > > runtime_property: "bgw_epg_add_configuration" > > remote_file: > > hostname: "host" # replace the string with a > function and you no longer get the error i.e. { get_property: [SELF, host] > } > > username: "Name" > > password: "Pwd" > > path: "the path " > > - path: "configuration-templates/bgw_mme_add" > > > > Regards, > > Srinidhi. > > > > *From:* Srinidhi Srivatsan [mailto:srinidhi.srivat...@globallogic.com] > *Sent:* Wednesday, December 06, 2017 11:41 AM > *To:* 'dev@ariatosca.incubator.apache.org' > *Subject:* install_aria_extensions called twice > > > > Hi, > > > > We have observed that install_aria_extensions is called twice – once in > process.py(executor) and once in main.py. Could you please confirm as to > why it is called again in process.py? > > > > Regards, > > Srinidhi. >
