Example of how to use python 3.6 requests to register/upload/create an image through an Openstack Glance API

image-upload-glance.py

#! /usr/bin/env python3.6

import json
import os
import requests
import urllib
import sys


region = 'DFW'
auth_url = 'https://identity.api.rackspacecloud.com/v2.0/tokens'
username = 'your_username_goes_here'
api_key = 'your_api_token_goes_here'

image_file_path = os.path.join('.', 'test_ubuntu_17_10.vhd.gz')

# Get an auth token

token = None
tenant_id = None
service_url = None

auth_data = {
    'auth': {
        'RAX-KSKEY:apiKeyCredentials': {
            'username': username,
            'apiKey': api_key,
        },
    },
}
auth_headers = {
    'Content-Type': 'application/json',
    'Accept': 'application/json',
    'User-Agent': 'python-glanceclient',
}

response = requests.post(auth_url,
                         data=json.dumps(auth_data),
                         headers=auth_headers,
                         verify=False)
if response.status_code == 200:
    data = response.text
    auth = json.loads(data)

    token = auth.get('access', {}).get('token', {}).get('id', None)
    tenant_id = auth.get('access', {}).get('token', {}).get('tenant', {}).get('id', None)

    service_catalog = auth.get('access', {}).get('serviceCatalog', {})
    endpoints = []
    for entry in service_catalog:
        if entry.get('name', None) == 'cloudImages':
            endpoints = entry.get('endpoints', [])
    for endpoint in endpoints:
        if endpoint.get('region', None).lower() == region.lower():
            service_url = endpoint.get('publicURL', None)

if not token:
    print("Error: Failed to acquire auth token")
    sys.exit(1)
if not tenant_id:
    print("Error: Failed to acquire tenant ID")
    sys.exit(1)
if not service_url:
    print("Error: Failed to acquire service url")
    sys.exit(1)

# Register the image

url = urllib.parse.urljoin(service_url, str(tenant_id), 'images')
image_file_size = str(os.path.getsize(image_file_path))
parameters = {
    'X-Image-Meta-Property-auto_disk_config': 'disabled',
    'X-Image-Meta-Property-cache_in_nova': 'True',
    'X-Image-Meta-Property-com.rackspace__1__build_config_options': 'rack_user_only,base_mgdops_config,mailgun,backup_agent_only,backup_defaults,monitoring_agent_only,monitoring_defaults',
    'X-Image-Meta-container_format': 'ovf',
    'X-Image-Meta-disk_format': 'vhd',
    'X-Image-Meta-Property-flavor_classes': '*,!onmetal,!onmetal2',
    'X-Image-Meta-Property-hypervisor_version_requires': '>=6.1',
    'X-Image-Meta-Property-image_type': 'base',
    'X-Image-Meta-is_public': 'True',
    'X-Image-Meta-min_disk': '10',
    'X-Image-Meta-min_ram': '256',
    'X-Image-Meta-name': 'Ubuntu 17.10 (Zesty Zapus) (PVHVM)',
    'X-Image-Meta-Property-org.openstack__1__architecture': 'x64',
    'X-Image-Meta-Property-org.openstack__1__os_distro': 'com.ubuntu',
    'X-Image-Meta-Property-org.openstack__1__os_version': '17.10',
    'X-Image-Meta-Property-os_distro': 'ubuntu',
    'X-Image-Meta-Property-os_type': 'linux',
    'X-Image-Meta-Property-vm_mode': 'hvm',
    'X-Image-Meta-id': '7f1307a7-06e2-45cb-8b07-c8f8480a3937',
    'X-Image-Meta-owner': str(tenant_id),
    'X-Image-Meta-size': image_file_size,
    'X-Image-Meta-Property-com.rackspace__1__release_build_date': '2017-10-18_12-00-00',
}

headers = {
    'X-Auth-Token': token,
    'Content-Length': image_file_size,
    'Content-Type': 'application/octet-stream',
    'User-Agent': 'python-glanceclient',
}
headers.update(parameters)

image = None
image_uuid = None

with open(image_file_path, 'rb') as image_file:
    try:
        response = requests.post(url,
                                 data=image_file,
                                 headers=headers,
                                 verify=False)

        if response.status_code in [200, 201]:
            data = response.text
            image = json.loads(data)
            image = image.get('image', {})
            image_uuid = image.get('id', None)
    except Exception as ex:
        print("Error: Failed to create image: {error}".format(error=ex))
        sys.exit(1)

print("Registered image {image_uuid} in Glance".format(image_uuid=image_uuid))

#eof