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Set defaults from params after loading files, allowing params to override (#44142)

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* Set defaults from params after loading files, allowing params to override

* cleanup, add some comments
This commit is contained in:
Fabian von Feilitzsch 2018-09-10 15:30:59 -04:00 committed by ansibot
parent ef67d4074b
commit aa01d9d243
1 changed files with 25 additions and 43 deletions
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66
lib/ansible/module_utils/k8s/common.py
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@ -139,58 +139,40 @@ class K8sAnsibleMixin(object):
auth_params = auth_params or getattr(self, 'params', {})
auth = copy.deepcopy(auth_params)
configuration = kubernetes.client.Configuration()
# If authorization variables aren't defined, look for them in environment variables
for key, value in iteritems(auth_params):
if key in auth_args and value is None:
env_value = os.getenv('K8S_AUTH_{0}'.format(key.upper()), None)
if env_value is not None:
auth[key] = env_value
def auth_set(*names):
return all([auth.get(name) for name in names])
if auth_set('username', 'password', 'host') or auth_set('api_key', 'host'):
# We have enough in the parameters to authenticate, no need to load incluster or kubeconfig
pass
elif auth_set('kubeconfig', 'context'):
kubernetes.config.load_kube_config(auth.get('kubeconfig'), auth.get('context'))
else:
# First try to do incluster config, then kubeconfig
try:
kubernetes.config.load_incluster_config()
except kubernetes.config.ConfigException:
kubernetes.config.load_kube_config(auth.get('kubeconfig'), auth.get('context'))
# Override any values in the default configuration with Ansible parameters
configuration = kubernetes.client.Configuration()
for key, value in iteritems(auth):
if key in auth_args and value is not None:
if key == 'api_key':
setattr(configuration, key, {'authorization': "Bearer {0}".format(value)})
else:
setattr(configuration, key, value)
elif key in auth_args and value is None:
env_value = os.getenv('K8S_AUTH_{0}'.format(key.upper()), None)
if env_value is not None:
if key == 'api_key':
setattr(configuration, key, {'authorization': "Bearer {0}".format(env_value)})
else:
setattr(configuration, key, env_value)
auth[key] = env_value
kubernetes.client.Configuration.set_default(configuration)
if auth.get('username') and auth.get('password') and auth.get('host'):
auth_method = 'params'
elif auth.get('api_key') and auth.get('host'):
auth_method = 'params'
elif auth.get('kubeconfig') or auth.get('context'):
auth_method = 'file'
else:
auth_method = 'default'
# First try to do incluster config, then kubeconfig
if auth_method == 'default':
try:
kubernetes.config.load_incluster_config()
return DynamicClient(kubernetes.client.ApiClient())
except kubernetes.config.ConfigException:
return DynamicClient(self.client_from_kubeconfig(auth.get('kubeconfig'), auth.get('context')))
if auth_method == 'file':
return DynamicClient(self.client_from_kubeconfig(auth.get('kubeconfig'), auth.get('context')))
if auth_method == 'params':
return DynamicClient(kubernetes.client.ApiClient(configuration))
def client_from_kubeconfig(self, config_file, context):
try:
return kubernetes.config.new_client_from_config(config_file, context)
except (IOError, kubernetes.config.ConfigException):
# If we failed to load the default config file then we'll return
# an empty configuration
# If one was specified, we will crash
if not config_file:
return kubernetes.client.ApiClient()
raise
def find_resource(self, kind, api_version, fail=False):
for attribute in ['kind', 'name', 'singular_name']:
try: