Show Table of Contents
4.3. Python を使用した API の例
以下の例では、Python を使用してさまざまなタスクを実行して Satellite API と通信する方法について説明します。
重要
以下は、スクリプトおよびコマンドの例です。以下のスクリプトを慎重にレビューしてから使用するようにしてください。変数、ユーザー名、パスワード、その他の情報は、お使いのデプロイメントに適した値に置き換えてください。
以下のスクリプトは、REST API との対話に SSL 検証を使用しません。ここで紹介しているスクリプトはデモのみを目的としています。
4.3.1. Python を使用したオブジェクトの作成
以下のスクリプトは Red Hat Satellite 6 API と接続して、新しい組織を作成し、その新規組織内に 3 つの環境を作成します。組織がすでに存在する場合には、スクリプトはその組織を使用します。組織内に環境が 1 つでも存在する場合は、スクリプトによりエラーが送出されて、スクリプトは終了します。
#!/usr/bin/python
import json
import sys
try:
import requests
except ImportError:
print "Please install the python-requests module."
sys.exit(-1)
# URL to your Satellite 6 server
URL = "https://satellite6.example.com"
# URL for the API to your deployed Satellite 6 server
SAT_API = "%s/katello/api/v2/" % URL
# Katello-specific API
KATELLO_API = "%s/katello/api/" % URL
POST_HEADERS = {'content-type': 'application/json'}
# Default credentials to login to Satellite 6
USERNAME = "admin"
PASSWORD = "changeme"
# Ignore SSL for now
SSL_VERIFY = False
# Name of the organization to be either created or used
ORG_NAME = "MyOrg"
# Name for life cycle environments to be either created or used
ENVIRONMENTS = ["Development", "Testing", "Production"]
def get_json(location):
"""
Performs a GET using the passed URL location
"""
r = requests.get(location, auth=(USERNAME, PASSWORD), verify=SSL_VERIFY)
return r.json()
def post_json(location, json_data):
"""
Performs a POST and passes the data to the URL location
"""
result = requests.post(
location,
data=json_data,
auth=(USERNAME, PASSWORD),
verify=SSL_VERIFY,
headers=POST_HEADERS)
return result.json()
def main():
"""
Main routine that creates or re-uses an organization and
life cycle environments. If life cycle environments already
exist, exit out.
"""
# Check if our organization already exists
org = get_json(SAT_API + "organizations/" + ORG_NAME)
# If our organization is not found, create it
if org.get('error', None):
org_id = post_json(
SAT_API + "organizations/",
json.dumps({"name": ORG_NAME}))["id"]
print "Creating organization: \t" + ORG_NAME
else:
# Our organization exists, so let's grab it
org_id = org['id']
print "Organization '%s' exists." % ORG_NAME
# Now, let's fetch all available life cycle environments for this org...
envs = get_json(
SAT_API + "organizations/" + str(org_id) + "/environments/")
# ... and add them to a dictionary, with respective 'Prior' environment
prior_env_id = 0
env_list = {}
for env in envs['results']:
env_list[env['id']] = env['name']
prior_env_id = env['id'] if env['name'] == "Library" else prior_env_id
# Exit the script if at least one life cycle environment already exists
if all(environment in env_list.values() for environment in ENVIRONMENTS):
print "ERROR: One of the Environments is not unique to organization"
sys.exit(-1)
# Create life cycle environments
for environment in ENVIRONMENTS:
new_env_id = post_json(
SAT_API + "organizations/" + str(org_id) + "/environments/",
json.dumps(
{
"name": environment,
"organization_id": org_id,
"prior": prior_env_id}
))["id"]
print "Creating environment: \t" + environment
prior_env_id = new_env_id
if __name__ == "__main__":
main()

Where did the comment section go?
Red Hat's documentation publication system recently went through an upgrade to enable speedier, more mobile-friendly content. We decided to re-evaluate our commenting platform to ensure that it meets your expectations and serves as an optimal feedback mechanism. During this redesign, we invite your input on providing feedback on Red Hat documentation via the discussion platform.