Thanks for that. That approach seems fair enough, but inconsistent with how other things are represented as functions. How am I meant to know what the inputs to the CSAR are before the CSAR is parsed? Michael On Tue, Dec 18, 2018 at 1:28 AM Bob Haddleton <bobh@haddleton.net> wrote:
Hi Michael:
tosca-parser expects that the input values will be defined already and passed to the ToscaTemplate object in the parsed_params argument.
If you change:
tosca = ToscaTemplate(sys.argv[1])
to:
tosca = ToscaTemplate(sys.argv[1], parsed_params={'cpus': 4})
the output becomes:
Processing node template server disk_size: 10 GB num_cpus: 4 mem_size: 4096 MB architecture: x86_64 type: Linux distribution: Fedora version: 18.0 min_instances: 1 max_instances: 1 secure: True
Hope this helps.
Bob
On 12/17/18 3:25 AM, Michael Still wrote:
Hi,
I'm trying to use tosca-parser to parse CSAR files. Its working quite well, until I hit a wall with capabilities today. Specifically I am testing with the single instance wordpress example CSAR, which uses a get_input for the num_cpus argument for host capabilities for the server.
Based on how properties work, I would expect to get a function back for anything which requires referencing another value, but in the case of capabilities I either get the hardcoded value (strings, ints etc), or a None for values which would be functions if we were talking about prototypes.
Here's a snippet of example code:
#!/usr/bin/python
import sys
from jinja2 import Template import toscaparser.functions from toscaparser.tosca_template import ToscaTemplate
tosca = ToscaTemplate(sys.argv[1])
for nodetemplate in tosca.nodetemplates: print print('Processing node template %s'% nodetemplate.name)
capabilities = nodetemplate.get_capabilities_objects() for cap in capabilities: propobjs = cap.get_properties_objects() if not propobjs: continue
for po in propobjs: print(' %s: %s' %(po.name, po.value))
Which returns this:
$ python _capabilities.py csar_wordpress.zip No handlers could be found for logger "tosca.model"
Processing node template wordpress network_name: PRIVATE initiator: source protocol: tcp secure: False
Processing node template webserver network_name: PRIVATE initiator: source protocol: tcp secure: False secure: True
Processing node template mysql_dbms
Processing node template mysql_database
Processing node template server secure: True min_instances: 1 max_instances: 1 mem_size: 4096 MB num_cpus: None disk_size: 10 GB distribution: Fedora version: 18.0 type: Linux architecture: x86_64
I would expect num_cpus for the "server" node_template to be a GetInput() function based on its definition in the CSAR, but instead I get None.
Is there an example somewhere of how to correctly access functions for capabilities?
Thanks, Michael