text stringlengths 0 828 |
|---|
Find the most suitable mapper that the client wants and we support. |
:returns: the preferred mapper based on the accept header or ``None``. |
"""""" |
accepts = util.parse_accept_header(request.META.get(""HTTP_ACCEPT"", """")) |
if not accepts: |
return None |
for accept in accepts: |
if accept[0] in self._datamappers: |
return accept[0] |
raise errors.NotAcceptable()" |
4609,"def _get_name_from_url(self, request): |
"""""" Determine short name for the mapper based on the URL. |
Short name can be either in query string (e.g. ?format=json) |
or as an extension to the URL (e.g. myresource.json). |
:returns: short name of the mapper or ``None`` if not found. |
"""""" |
format = request.GET.get('format', None) |
if not format: |
match = self._format_query_pattern.match(request.path) |
if match and match.group('format'): |
format = match.group('format') |
return format" |
4610,"def _check_mapper(self, mapper): |
"""""" Check that the mapper has valid signature. """""" |
if not hasattr(mapper, 'parse') or not callable(mapper.parse): |
raise ValueError('mapper must implement parse()') |
if not hasattr(mapper, 'format') or not callable(mapper.format): |
raise ValueError('mapper must implement format()')" |
4611,"def setup_cluster(self, cluster, extra_args=tuple()): |
"""""" |
Configure the cluster by running an Ansible playbook. |
The ElastiCluster configuration attribute `<kind>_groups` |
determines, for each node kind, what Ansible groups nodes of |
that kind are assigned to. |
:param cluster: cluster to configure |
:type cluster: :py:class:`elasticluster.cluster.Cluster` |
:param list extra_args: |
List of additional command-line arguments |
that are appended to each invocation of the setup program. |
:return: ``True`` on success, ``False`` otherwise. Please note, if nothing |
has to be configured, then ``True`` is returned. |
:raises: `ConfigurationError` if the playbook can not be found |
or is corrupt. |
"""""" |
inventory_path = self._build_inventory(cluster) |
if inventory_path is None: |
# No inventory file has been created, maybe an |
# invalid class has been specified in config file? Or none? |
# assume it is fine. |
elasticluster.log.info(""No setup required for this cluster."") |
return True |
assert os.path.exists(inventory_path), ( |
""inventory file `{inventory_path}` does not exist"" |
.format(inventory_path=inventory_path)) |
# build list of directories to search for roles/include files |
ansible_roles_dirs = [ |
# include Ansible default first ... |
'/etc/ansible/roles', |
] |
for root_path in [ |
# ... then ElastiCluster's built-in defaults |
resource_filename('elasticluster', 'share/playbooks'), |
# ... then wherever the playbook is |
os.path.dirname(self._playbook_path), |
]: |
for path in [ |
root_path, |
os.path.join(root_path, 'roles'), |
]: |
if path not in ansible_roles_dirs and os.path.exists(path): |
ansible_roles_dirs.append(path) |
# Use env vars to configure Ansible; |
# see all values in https://github.com/ansible/ansible/blob/devel/lib/ansible/constants.py |
# |
# Ansible does not merge keys in configuration files: rather |
# it uses the first configuration file found. However, |
# environment variables can be used to selectively override |
# parts of the config; according to [1]: ""they are mostly |
# considered to be a legacy system as compared to the config |
# file, but are equally valid."" |
# |
# [1]: http://docs.ansible.com/ansible/intro_configuration.html#environmental-configuration |
# |
# Provide default values for important configuration variables... |
ansible_env = { |
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