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quay/config_app/config_util/k8sconfig.py
2019-11-12 11:09:47 -05:00

46 lines
1.8 KiB
Python

import os
SERVICE_ACCOUNT_TOKEN_PATH = '/var/run/secrets/kubernetes.io/serviceaccount/token'
DEFAULT_QE_NAMESPACE = 'quay-enterprise'
DEFAULT_QE_CONFIG_SECRET = 'quay-enterprise-config-secret'
# The name of the quay enterprise deployment (not config app) that is used to query & rollout
DEFAULT_QE_DEPLOYMENT_SELECTOR = 'app'
def get_k8s_namespace():
return os.environ.get('QE_K8S_NAMESPACE', DEFAULT_QE_NAMESPACE)
class KubernetesConfig(object):
def __init__(self, api_host='', service_account_token=SERVICE_ACCOUNT_TOKEN_PATH,
qe_namespace=DEFAULT_QE_NAMESPACE,
qe_config_secret=DEFAULT_QE_CONFIG_SECRET,
qe_deployment_selector=DEFAULT_QE_DEPLOYMENT_SELECTOR):
self.api_host = api_host
self.qe_namespace = qe_namespace
self.qe_config_secret = qe_config_secret
self.qe_deployment_selector = qe_deployment_selector
self.service_account_token = service_account_token
@classmethod
def from_env(cls):
# Load the service account token from the local store.
if not os.path.exists(SERVICE_ACCOUNT_TOKEN_PATH):
raise Exception('Cannot load Kubernetes service account token')
with open(SERVICE_ACCOUNT_TOKEN_PATH, 'r') as f:
service_token = f.read()
api_host = os.environ.get('KUBERNETES_SERVICE_HOST', '')
port = os.environ.get('KUBERNETES_SERVICE_PORT')
if port:
api_host += ':' + port
qe_namespace = get_k8s_namespace()
qe_config_secret = os.environ.get('QE_K8S_CONFIG_SECRET', DEFAULT_QE_CONFIG_SECRET)
qe_deployment_selector = os.environ.get('QE_DEPLOYMENT_SELECTOR', DEFAULT_QE_DEPLOYMENT_SELECTOR)
return cls(api_host=api_host, service_account_token=service_token, qe_namespace=qe_namespace,
qe_config_secret=qe_config_secret, qe_deployment_selector=qe_deployment_selector)