Groups#

Groups for the Google Stackdriver Monitoring API (V3).

class google.cloud.monitoring.group.Group(client, group_id=None, display_name=None, parent_id=None, filter_string=None, is_cluster=False)[source]#

Bases: object

A dynamic collection of monitored resources.

Parameters:

client (google.cloud.monitoring.client.Client) – A client for operating on the metric descriptor.
group_id (string or None) – The ID of the group.
display_name (string or None) – A user-assigned name for this group, used only for display purposes.
parent_id (string or None) – The ID of the group’s parent, if it has one.
filter_string (string or None) – The filter string used to determine which monitored resources belong to this group.
is_cluster (boolean) – If true, the members of this group are considered to be a cluster. The system can perform additional analysis on groups that are clusters.

create()[source]#

Create a new group based on this object via a POST request.

Example:

>>> filter_string = 'resource.type = "gce_instance"'
>>> group = client.group(
...     display_name='My group',
...     filter_string=filter_string,
...     parent_id='5678',
...     is_cluster=True)
>>> group.create()

The name attribute is ignored in preparing the creation request. All attributes are overwritten by the values received in the response (normally affecting only name).

delete()[source]#

Delete the group via a DELETE request.

Example:

>>> group = client.group('1234')
>>> group.delete()

Only the client and name attributes are used.

Warning

This method will fail for groups that have one or more children groups.

exists()[source]#

Test for the existence of the group via a GET request.

Return type:	bool
Returns:	Boolean indicating existence of the group.

fetch_parent()[source]#

Returns the parent group of this group via a GET request.

Return type:	`Group` or None
Returns:	The parent of the group.

id#

Returns the group ID.

Return type:	str or None
Returns:	the ID of the group based on it’s name.

list_ancestors()[source]#

Lists all ancestors of this group via a GET request.

The groups are returned in order, starting with the immediate parent and ending with the most distant ancestor. If the specified group has no immediate parent, the results are empty.

Return type:	list of `Group`
Returns:	A list of group instances.

list_children()[source]#

Lists all children of this group via a GET request.

Returns groups whose parent_name field contains the group name. If no groups have this parent, the results are empty.

Return type:	list of `Group`
Returns:	A list of group instances.

list_descendants()[source]#

Lists all descendants of this group via a GET request.

This returns a superset of the results returned by the children() method, and includes children-of-children, and so forth.

Return type:	list of `Group`
Returns:	A list of group instances.

list_members(filter_string=None, end_time=None, start_time=None)[source]#

Lists all members of this group via a GET request.

If no end_time is provided then the group membership over the last minute is returned.

Example:

>>> for member in group.list_members():
...     print(member)

List members that are Compute Engine VM instances:

>>> filter_string = 'resource.type = "gce_instance"'
>>> for member in group.list_members(filter_string=filter_string):
...     print(member)

List historical members that existed between 4 and 5 hours ago:

>>> import datetime
>>> t1 = datetime.datetime.utcnow() - datetime.timedelta(hours=4)
>>> t0 = t1 - datetime.timedelta(hours=1)
>>> for member in group.list_members(end_time=t1, start_time=t0):
...     print(member)

Parameters:	filter_string (string or None) – An optional list filter describing the members to be returned. The filter may reference the type, labels, and metadata of monitored resources that comprise the group. See the filter documentation. end_time (`datetime.datetime` or None) – The end time (inclusive) of the time interval for which results should be returned, as a datetime object. If `start_time` is specified, then this must also be specified. start_time (`datetime.datetime` or None) – The start time (exclusive) of the time interval for which results should be returned, as a datetime object.
Return type:	list of `Resource`
Returns:	A list of resource instances.
Raises:	`ValueError` if the `start_time` is specified, but the `end_time` is missing.

name#

Returns the fully qualified name of the group.

Return type:	str or None
Returns:	The fully qualified name of the group in the format “projects/<project>/groups/<id>”.

parent_name#

Returns the fully qualified name of the parent group.

Return type:	str or None
Returns:	The fully qualified name of the parent group.

path#

URL path to this group.

Return type:	str
Returns:	the path based on project and group name.
Raises:	`ValueError` if `name` is not specified.

reload()[source]#: Sync local group information via a GET request.

Warning

This will overwrite any local changes you’ve made and not saved via update().

update()[source]#: Update the group via a PUT request.