Deploy the trigger on the Production CentreΒΆ
This Jupyter Notebook creates a Web Processing Service request on the Ellip Platform Deployer to deploy the trigger and its associated coordinators on the Production Centre.
- First do the imports of the Python libraries required
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import os
import getpass
import lxml.etree as etree
import owslib
from owslib.wps import monitorExecution
from owslib.wps import WebProcessingService
from nbconvert.preprocessors import ExecutePreprocessor, CellExecutionError
import nbformat as nbf
- Load the data pipeline configuration
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%store -r
nb_config = os.path.join('..', 'configuration.ipynb')
nb = nbf.read(nb_config, 4)
exec(nb['cells'][2]['source']) in globals(), locals()
trigger_queue = dict([('artifact_id', trigger_queue_artifact_id),
('version', trigger_queue_version),
('repository', repository),
('folder', folder),
('community', community)])
trigger_queue_process_id = '%s_%s_%s_%s' % (trigger_queue['community'].replace('-', '_'),
trigger_queue['artifact_id'].replace('-', '_'),
trigger_queue['artifact_id'].replace('-', '_'),
trigger_queue['version'].replace('.', '_'))
- Connect to the WPS server and do a GetCapabilities request to list the available process:
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wps_url = '%s/zoo-bin/zoo_loader.cgi' % deployer
wps = WebProcessingService(wps_url, verbose=False, skip_caps=True)
wps.getcapabilities()
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deploy_process_available = False
for index, elem in enumerate(wps.processes):
if 'TerradueDeployProcess' in elem.identifier:
deploy_process_available = True
if deploy_process_available:
print 'TerradueDeployProcess is available'
else:
raise Exception('TerradueDeployProcess is not available')
- Select the TerradueDeployProcess process to submit a DescribeProcess request and list the inputs:
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process_id = 'TerradueDeployProcess'
process = wps.describeprocess(process_id)
for data_input in process.dataInputs:
print data_input.identifier
print '----'
for process_output in process.processOutputs:
print process_output.identifier
- Build the Python dictionary with the inputs:
- Submit the Execute WPS request:
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for trigger in [trigger_queue, trigger_pipe]:
ows_context_url = '/%s/_applications/%s/%s/%s/%s-%s-application-context.xml' % (trigger['community'],
trigger['community'],
trigger['artifact_id'],
trigger['version'],
trigger['artifact_id'],
trigger['version'])
print 'Deploying %s' % ows_context_url
inputs = [('applicationPackage', ows_context_url),
('apikey', api_key),
('coordinator', 'True')]
execution = owslib.wps.WPSExecution(url=wps.url)
execution_request = execution.buildRequest(process_id,
inputs,
output=[('deployResult', False)])
execution_response = execution.submitRequest(etree.tostring(execution_request))
execution.parseResponse(execution_response)
monitorExecution(execution)
if execution.isSucceded():
print 'Application %s deployed!' % trigger['artifact_id']
else:
print 'Application %s not deployed!' % trigger['artifact_id']
- Check the new WPS capabilities:
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wps = WebProcessingService(wps_url, verbose=False, skip_caps=True)
wps.getcapabilities()
trigger_queue_deployed = False
for index, elem in enumerate(wps.processes):
if elem.identifier == trigger_queue_process_id:
trigger_queue_deployed = True
if trigger_queue_deployed:
print 'Process %s deployed' % trigger_queue_process_id
else:
raise Exception('Process %s not deployed' % trigger_queue_process_id)