Maria Zlatkova b94d0b58d4 [user-guide] Changes underscore to hyphen in RST files

Adds the following changes:

- Renames all the RST files in the user-guide folder to use
  hyphens instead of underscores;
- Adds redirects to the renamed files to .htaccess.

Change-Id: Ic5f1a90421add35d001363cd39bada0b56a04d7f
Implements: blueprint consistency-file-rename

2016-08-10 18:00:13 +03:00

3.8 KiB

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Manage images

When working with images in the SDK, you will call both glance and nova methods.

List images

To list the available images, call the glanceclient.v2.images.Controller.list method:

import glanceclient.v2.client as glclient
glance = glclient.Client(...)
images = glance.images.list()

The images method returns a Python generator, as shown in the following interaction with the Python interpreter:

>>> images = glance.images.list()
>>> images
<generator object list at 0x105e9c2d0>
>>> list(images)
[{u'checksum': u'f8a2eeee2dc65b3d9b6e63678955bd83',
  u'container_format': u'ami',
  u'created_at': u'2013-10-20T14:28:10Z',
  u'disk_format': u'ami',
  u'file': u'/v2/images/dbc9b2db-51d7-403d-b680-3f576380b00c/file',
  u'id': u'dbc9b2db-51d7-403d-b680-3f576380b00c',
  u'kernel_id': u'c002c82e-2cfa-4952-8461-2095b69c18a6',
  u'min_disk': 0,
  u'min_ram': 0,
  u'name': u'cirros-0.3.2-x86_64-uec',
  u'protected': False,
  u'ramdisk_id': u'4c1c9b4f-3fe9-425a-a1ec-1d8fd90b4db3',
  u'schema': u'/v2/schemas/image',
  u'size': 25165824,
  u'status': u'active',
  u'tags': [],
  u'updated_at': u'2013-10-20T14:28:11Z',
  u'visibility': u'public'},
 {u'checksum': u'69c33642f44ca552ba4bb8b66ad97e85',
  u'container_format': u'ari',
  u'created_at': u'2013-10-20T14:28:09Z',
  u'disk_format': u'ari',
  u'file': u'/v2/images/4c1c9b4f-3fe9-425a-a1ec-1d8fd90b4db3/file',
  u'id': u'4c1c9b4f-3fe9-425a-a1ec-1d8fd90b4db3',
  u'min_disk': 0,
  u'min_ram': 0,
  u'name': u'cirros-0.3.2-x86_64-uec-ramdisk',
  u'protected': False,
  u'schema': u'/v2/schemas/image',
  u'size': 3714968,
  u'status': u'active',
  u'tags': [],
  u'updated_at': u'2013-10-20T14:28:10Z',
  u'visibility': u'public'},
 {u'checksum': u'c352f4e7121c6eae958bc1570324f17e',
  u'container_format': u'aki',
  u'created_at': u'2013-10-20T14:28:08Z',
  u'disk_format': u'aki',
  u'file': u'/v2/images/c002c82e-2cfa-4952-8461-2095b69c18a6/file',
  u'id': u'c002c82e-2cfa-4952-8461-2095b69c18a6',
  u'min_disk': 0,
  u'min_ram': 0,
  u'name': u'cirros-0.3.2-x86_64-uec-kernel',
  u'protected': False,
  u'schema': u'/v2/schemas/image',
  u'size': 4955792,
  u'status': u'active',
  u'tags': [],
  u'updated_at': u'2013-10-20T14:28:09Z',
  u'visibility': u'public'}]

Get image by ID

To retrieve an image object from its ID, call the glanceclient.v2.images.Controller.get method:

import glanceclient.v2.client as glclient
image_id = 'c002c82e-2cfa-4952-8461-2095b69c18a6'
glance = glclient.Client(...)
image = glance.images.get(image_id)

Get image by name

The Image service Python bindings do not support the retrieval of an image object by name. However, the Compute Python bindings enable you to get an image object by name. To get an image object by name, call the novaclient.v1_1.images.ImageManager.find method:

import novaclient.v1_1.client as nvclient
name = "cirros"
nova = nvclient.Client(...)
image = nova.images.find(name=name)

Upload an image

To upload an image, call the glanceclient.v2.images.ImageManager.create method:

import glanceclient.v2.client as glclient
imagefile = "/tmp/myimage.img"
glance = glclient.Client(...)
with open(imagefile) as fimage:
  glance.images.create(name="myimage", is_public=False, disk_format="qcow2",
                       container_format="bare", data=fimage)

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