deckhand/doc/source/operators/api_client.rst

Deckhand API Client Library Documentation

The recommended approach to instantiate the Deckhand client is via a Keystone session:

from keystoneauth1.identity import v3
from keystoneauth1 import session

keystone_auth = {
    'project_domain_name': PROJECT_DOMAIN_NAME,
    'project_name': PROJECT_NAME,
    'user_domain_name': USER_DOMAIN_NAME,
    'password': PASSWORD,
    'username': USERNAME,
    'auth_url': AUTH_URL,
}
auth = v3.Password(**keystone_auth)
sess = session.Session(auth=auth)
deckhandclient = client.Client(session=sess)

You can also instantiate the client via one of Keystone's supported auth plugins:

from keystoneauth1.identity import v3

keystone_auth = {
    'auth_url': AUTH_URL,
    'token': TOKEN,
    'project_id': PROJECT_ID,
    'project_domain_name': PROJECT_DOMAIN_NAME
}
auth = v3.Token(**keystone_auth)
deckhandclient = client.Client(auth=auth)

Which will allow you to authenticate using a pre-existing, project-scoped token.

Alternatively, you can use non-session authentication to instantiate the client, though this approach has been deprecated.

from deckhand.client import client

deckhandclient = client.Client(
    username=USERNAME,
    password=PASSWORD,
    project_name=PROECT_NAME,
    project_domain_name=PROJECT_DOMAIN_NAME,
    user_domain_name=USER_DOMAIN_NAME,
    auth_url=AUTH_URL)

Note

The Deckhand client by default expects that the service be registered under the Keystone service catalog as deckhand. To provide a different value pass service_type=SERVICE_TYPE to the Client constructor.

After you have instantiated an instance of the Deckhand client, you can invoke the client managers' functionality:

# Generate a sample document.
payload = """
---
schema: deckhand/Certificate/v1
metadata:
  schema: metadata/Document/v1
  name: application-api
  storagePolicy: cleartext
data: |-
  -----BEGIN CERTIFICATE-----
  MIIDYDCCAkigAwIBAgIUKG41PW4VtiphzASAMY4/3hL8OtAwDQYJKoZIhvcNAQEL
  ...snip...
  P3WT9CfFARnsw2nKjnglQcwKkKLYip0WY2wh3FE7nrQZP6xKNaSRlh6p2pCGwwwH
  HkvVwA==
  -----END CERTIFICATE-----
"""

# Create a bucket and associate it with the document.
result = client.buckets.update('mop', payload)

>>> result
<Bucket name: mop>

# Convert the response to a dictionary.
>>> result.to_dict()
{'status': {'bucket': 'mop', 'revision': 1},
 'schema': 'deckhand/Certificate/v1', 'data': {...} 'id': 1,
 'metadata': {'layeringDefinition': {'abstract': False},
 'storagePolicy': 'cleartext', 'name': 'application-api',
 'schema': 'metadata/Document/v1'}}

# Show the revision that was created.
revision = client.revisions.get(1)

>>> revision.to_dict()
{'status': 'success', 'tags': {},
 'url': 'https://deckhand/api/v1.0/revisions/1',
 'buckets': ['mop'], 'validationPolicies': [], 'id': 1,
 'createdAt': '2017-12-09T00:15:04.309071'}

# List all revisions.
revisions = client.revisions.list()

>>> revisions.to_dict()
{'count': 1, 'results': [{'buckets': ['mop'], 'id': 1,
 'createdAt': '2017-12-09T00:29:34.031460', 'tags': []}]}

# List raw documents for the created revision.
raw_documents = client.revisions.documents(1, rendered=False)

>>> [r.to_dict() for r in raw_documents]
[{'status': {'bucket': 'foo', 'revision': 1},
  'schema': 'deckhand/Certificate/v1', 'data': {...}, 'id': 1,
  'metadata': {'layeringDefinition': {'abstract': False},
  'storagePolicy': 'cleartext', 'name': 'application-api',
  'schema': 'metadata/Document/v1'}}]

Client Reference

For more information about how to use the Deckhand client, refer to the client module.