Dataframes endpoint¶
Add dataframes into the storage backend.
Name |
In |
Type |
Description |
---|---|---|---|
dataframes |
body |
list |
List of dataframes to add. |
Request Example¶
In the body:
{
"dataframes": [
{
"period": {
"begin": "20190723T122810Z",
"end": "20190723T132810Z"
},
"usage": {
"metric_one": [
{
"vol": {
"unit": "GiB",
"qty": 1.2
},
"rating": {
"price": 0.04
},
"groupby": {
"group_one": "one",
"group_two": "two"
},
"metadata": {
"attr_one": "one",
"attr_two": "two"
}
}
],
"metric_two": [
{
"vol": {
"unit": "MB",
"qty": 200.4
},
"rating": {
"price": 0.06
},
"groupby": {
"group_one": "one",
"group_two": "two"
},
"metadata": {
"attr_one": "one",
"attr_two": "two"
}
}
]
}
},
{
"period": {
"begin": "20190823T122810Z",
"end": "20190823T132810Z"
},
"usage": {
"metric_one": [
{
"vol": {
"unit": "GiB",
"qty": 2.4
},
"rating": {
"price": 0.08
},
"groupby": {
"group_one": "one",
"group_two": "two"
},
"metadata": {
"attr_one": "one",
"attr_two": "two"
}
}
],
"metric_two": [
{
"vol": {
"unit": "MB",
"qty": 400.8
},
"rating": {
"price": 0.12
},
"groupby": {
"group_one": "one",
"group_two": "two"
},
"metadata": {
"attr_one": "one",
"attr_two": "two"
}
}
]
}
}
]
}
Status codes¶
Success¶
Code |
Reason |
---|---|
204 - No Content |
Request was successful even though no content is to be returned. |
Error¶
Code |
Reason |
---|---|
400 - Bad Request |
Invalid request. |
401 - Unauthorized |
Unauthenticated user. |
403 - Forbidden |
Forbidden operation for the authentified user. |
405 - Method Not Allowed |
The method is not allowed for the requested URL. |
Response¶
No content is to be returned.
Get dataframes from the storage backend.
Name |
In |
Type |
Description |
---|---|---|---|
limit (Optional) |
query |
int |
For pagination. The maximum number of results to return. |
offset (Optional) |
query |
int |
For pagination. The index of the first element that should be returned. |
begin (Optional) |
query |
iso8601 timestamp |
Begin of the period for which the dataframes are required. |
end (Optional) |
query |
iso8601 timestamp |
End of the period for which the dataframes are required. |
filters (Optional) |
query |
dict |
Optional filters. |
Status codes¶
Success¶
Code |
Reason |
---|---|
200 - OK |
Request was successful. |
Error¶
Code |
Reason |
---|---|
400 - Bad Request |
Invalid request. |
401 - Unauthorized |
Unauthenticated user. |
403 - Forbidden |
Forbidden operation for the authentified user. |
405 - Method Not Allowed |
The method is not allowed for the requested URL. |
Response¶
Name |
In |
Type |
Description |
---|---|---|---|
total |
body |
int |
Total of datapoints matching the query parameters. |
dataframes |
body |
list |
List of dataframes matching the query parameters. |
Response Example¶
{
"total": 3,
"dataframes": [
{
"usage": {
"metric_one": [
{
"vol": {
"unit": "GiB",
"qty": 1.2
},
"rating": {
"price": 0.04
},
"groupby": {
"group_one": "one",
"group_two": "two"
},
"metadata": {
"attr_one": "one",
"attr_two": "two"
}
}
],
"metric_two": [
{
"vol": {
"unit": "GiB",
"qty": 1.2
},
"rating": {
"price": 0.04
},
"groupby": {
"group_one": "one",
"group_two": "two"
},
"metadata": {
"attr_one": "one",
"attr_two": "two"
}
}
]
},
"period": {
"begin": "2019-07-23T12:28:10+00:00",
"end": "2019-07-23T13:28:10+00:00"
}
},
{
"usage": {
"volume.size": [
{
"vol": {
"unit": "GiB",
"qty": 1.9
},
"rating": {
"price": 3.8
},
"groupby": {
"project_id": "8ace6f139a1742548e09f1e446bc9737",
"user_id": "b28fd3f448c34c17bf70e32886900eed",
"id": "be966c6d-78a0-42cf-bab9-e833ed996dee"
},
"metadata": {
"volume_type": ""
}
}
]
},
"period": {
"begin": "2019-08-01T01:00:00+00:00",
"end": "2019-08-01T02:00:00+00:00"
}
}
]
}
Scope state endpoint¶
Returns the status of several scopes.
Name |
In |
Type |
Description |
---|---|---|---|
collector (Optional) |
query |
string |
Filter on collector. |
fetcher (Optional) |
query |
string |
Filter on fetcher. |
limit (Optional) |
query |
int |
For pagination. The maximum number of results to return. |
offset (Optional) |
query |
int |
For pagination. The index of the first element that should be returned. |
scope_id (Optional) |
query |
string |
Filter on scope. |
scope_key (Optional) |
query |
string |
Filter on scope_key. |
Status codes¶
Success¶
Code |
Reason |
---|---|
200 - OK |
Request was successful. |
Error¶
Code |
Reason |
---|---|
400 - Bad Request |
Invalid request. |
403 - Forbidden |
Forbidden operation for the authentified user. |
404 - Not Found |
Not found. |
405 - Method Not Allowed |
The method is not allowed for the requested URL. |
Response¶
Name |
In |
Type |
Description |
---|---|---|---|
collector |
body |
string |
Collector for the given scope |
fetcher |
body |
string |
Fetcher for the given scope |
state |
body |
iso8601 timestamp |
State of the scope. This variable represents the last processed timestamp for the storage state element. It is DEPRECATED, and it will be removed in upcoming releases. The alternative is last_processed_timestamp. |
last_processed_timestamp |
body |
iso8601 timestamp |
It represents the last processed timestamp for the storage state element. |
scope_id |
body |
string |
Scope |
scope_key |
body |
string |
Scope key for the given scope |
active |
body |
bool |
Defines if a scope should be processed or not; True means that CloudKitty must process the scope. |
Response Example¶
{
"results": [
{
"collector": "gnocchi",
"fetcher": "keystone",
"scope_id": "7a7e5183264644a7a79530eb56e59941",
"scope_key": "project_id",
"last_processed_timestamp": "2019-05-09 10:00:00",
"active": true
},
{
"collector": "gnocchi",
"fetcher": "keystone",
"scope_id": "9084fadcbd46481788e0ad7405dcbf12",
"scope_key": "project_id",
"last_processed_timestamp": "2019-05-08 03:00:00",
"active": true
},
{
"collector": "gnocchi",
"fetcher": "keystone",
"scope_id": "1f41d183fca5490ebda5c63fbaca026a",
"scope_key": "project_id",
"last_processed_timestamp": "2019-05-06 22:00:00",
"active": true
}
]
}
Reset the status of several scopes.
Name |
In |
Type |
Description |
---|---|---|---|
state |
body |
iso8601 timestamp |
State of the scope. This variable represents the last processed timestamp for the storage state element. It is DEPRECATED, and it will be removed in upcoming releases. The alternative is last_processed_timestamp. |
last_processed_timestamp |
body |
iso8601 timestamp |
It represents the last processed timestamp for the storage state element. |
collector (Optional) |
body |
string |
Filter on collector. |
fetcher (Optional) |
body |
string |
Filter on fetcher. |
scope_id (Optional) |
body |
string |
Filter on scope. |
scope_key (Optional) |
body |
string |
Filter on scope_key. |
all_scopes (Optional) |
body |
bool |
Confirmation whether all scopes must be reset |
Status codes¶
Success¶
Code |
Reason |
---|---|
202 - Accepted |
Request has been accepted for asynchronous processing. |
Error¶
Code |
Reason |
---|---|
400 - Bad Request |
Invalid request. |
403 - Forbidden |
Forbidden operation for the authentified user. |
404 - Not Found |
Not found. |
405 - Method Not Allowed |
The method is not allowed for the requested URL. |
Patches/updates a scope.
Name |
In |
Type |
Description |
---|---|---|---|
collector (Optional) |
query |
string |
Filter on collector. |
fetcher (Optional) |
query |
string |
Filter on fetcher. |
limit (Optional) |
query |
int |
For pagination. The maximum number of results to return. |
offset (Optional) |
query |
int |
For pagination. The index of the first element that should be returned. |
scope_id (Optional) |
query |
string |
Filter on scope. |
scope_key (Optional) |
query |
string |
Filter on scope_key. |
active (Optional) |
body |
bool |
Defines if a scope should be processed or not; True means that CloudKitty must process the scope. |
Status codes¶
Success¶
Code |
Reason |
---|---|
200 - OK |
Request was successful. |
Error¶
Code |
Reason |
---|---|
400 - Bad Request |
Invalid request. |
403 - Forbidden |
Forbidden operation for the authentified user. |
404 - Not Found |
Not found. |
405 - Method Not Allowed |
The method is not allowed for the requested URL. |
Response¶
Name |
In |
Type |
Description |
---|---|---|---|
collector |
body |
string |
Collector for the given scope |
fetcher |
body |
string |
Fetcher for the given scope |
state |
body |
iso8601 timestamp |
State of the scope. This variable represents the last processed timestamp for the storage state element. It is DEPRECATED, and it will be removed in upcoming releases. The alternative is last_processed_timestamp. |
scope_id |
body |
string |
Scope |
scope_key |
body |
string |
Scope key for the given scope |
active |
body |
bool |
Defines if a scope should be processed or not; True means that CloudKitty must process the scope. |
Response Example¶
{
"results": [
{
"collector": "gnocchi",
"fetcher": "keystone",
"scope_id": "7a7e5183264644a7a79530eb56e59941",
"scope_key": "project_id",
"last_processed_timestamp": "2019-05-09 10:00:00",
"active": true
},
{
"collector": "gnocchi",
"fetcher": "keystone",
"scope_id": "9084fadcbd46481788e0ad7405dcbf12",
"scope_key": "project_id",
"last_processed_timestamp": "2019-05-08 03:00:00",
"active": true
},
{
"collector": "gnocchi",
"fetcher": "keystone",
"scope_id": "1f41d183fca5490ebda5c63fbaca026a",
"scope_key": "project_id",
"last_processed_timestamp": "2019-05-06 22:00:00",
"active": true
}
]
}
Create a scope.
Name |
In |
Type |
Description |
---|---|---|---|
collector (Optional) |
query |
string |
Filter on collector. |
fetcher (Optional) |
query |
string |
Filter on fetcher. |
scope_id (Optional) |
query |
string |
Filter on scope. |
scope_key (Optional) |
query |
string |
Filter on scope_key. |
active (Optional) |
body |
bool |
Defines if a scope should be processed or not; True means that CloudKitty must process the scope. |
Status codes¶
Success¶
Code |
Reason |
---|---|
200 - OK |
Request was successful. |
Error¶
Code |
Reason |
---|---|
400 - Bad Request |
Invalid request. |
403 - Forbidden |
Forbidden operation for the authentified user. |
404 - Not Found |
Not found. |
405 - Method Not Allowed |
The method is not allowed for the requested URL. |
Response¶
Name |
In |
Type |
Description |
---|---|---|---|
scope_id |
body |
string |
Scope |
scope_key |
body |
string |
Scope key for the given scope |
fetcher |
body |
string |
Fetcher for the given scope |
collector |
body |
string |
Collector for the given scope |
state |
body |
iso8601 timestamp |
State of the scope. This variable represents the last processed timestamp for the storage state element. It is DEPRECATED, and it will be removed in upcoming releases. The alternative is last_processed_timestamp. |
last_processed_timestamp |
body |
iso8601 timestamp |
It represents the last processed timestamp for the storage state element. |
active |
body |
bool |
Defines if a scope should be processed or not; True means that CloudKitty must process the scope. |
scope_activation_toggle_date |
body |
iso8601 timestamp |
It represents the last time the scope was activated/deactivated via the PATCH API. |
Response Example¶
{
"results": [
{
"collector": "gnocchi",
"fetcher": "keystone",
"scope_id": "7a7e5183264644a7a79530eb56e59941",
"scope_key": "project_id",
"last_processed_timestamp": "2019-05-09 10:00:00",
"active": true
},
{
"collector": "gnocchi",
"fetcher": "keystone",
"scope_id": "9084fadcbd46481788e0ad7405dcbf12",
"scope_key": "project_id",
"last_processed_timestamp": "2019-05-08 03:00:00",
"active": true
},
{
"collector": "gnocchi",
"fetcher": "keystone",
"scope_id": "1f41d183fca5490ebda5c63fbaca026a",
"scope_key": "project_id",
"last_processed_timestamp": "2019-05-06 22:00:00",
"active": true
}
]
}
Summary endpoint¶
Get a rating summary for one or several tenants.
Name |
In |
Type |
Description |
---|---|---|---|
limit (Optional) |
query |
int |
For pagination. The maximum number of results to return. |
offset (Optional) |
query |
int |
For pagination. The index of the first element that should be returned. |
begin (Optional) |
query |
iso8601 timestamp |
Begin of the period for which the summary is required. |
end (Optional) |
query |
iso8601 timestamp |
End of the period for which the summary is required. |
groupby (Optional) |
query |
list of strings |
Optional attributes to group the summary by. The |
filters (Optional) |
query |
dict |
Optional filters. These filters accept multiple query parameters. To use
this option with multiple parameters, repeat it as many time as desired in
the query string. For instance, to restrict the result to only two
projects, add to the query string
|
custom_fields (Optional) |
query |
list of strings |
Optional attributes to customize the summary GET API response. When
using this parameter, users can create custom reports. The default
behavior is to list the sum of the quantity and the sum of the price,
which is projected as
|
response_format (Optional) |
query |
string |
Optional attribute to define the object structure used in the response.
Both responses will be JSON objects. Possible values are The default value is The structure for the object option uses a dictionary. The response still has the total attribute. However, in the results attribute, one will find a list of objects, instead of a list of lists of values that we see in the table option. This facilitates the processing of some use cases. |
Status codes¶
Success¶
Code |
Reason |
---|---|
200 - OK |
Request was successful. |
Error¶
Code |
Reason |
---|---|
400 - Bad Request |
Invalid request. |
403 - Forbidden |
Forbidden operation for the authentified user. |
405 - Method Not Allowed |
The method is not allowed for the requested URL. |
Response¶
The response has the following default format (response_format=’table’):
{
"columns": [
"begin",
"end",
"qty",
"rate",
"group1",
"group2",
],
"results": [
[
"2019-06-01T00:00:00Z",
"2019-07-01T00:00:00Z",
2590.421676635742,
1295.210838317871,
"group1",
"group2",
]
],
"total": 4
}
total
is the total amount of found elements. columns
contains the name of
the columns for each element of results
. The columns are the four mandatory ones
(begin
, end
, qty
, rate
) along with each attribute the result is
grouped by.
format
is the response format. It can be “table” or “object”. The default
response structure is “table”, which is presented above. The object structure
uses the following pattern.
{
"results": [
{"begin": "2019-06-01T00:00:00Z",
"end": "2019-07-01T00:00:00Z",
"qty": 2590.421676635742,
"rate": 1295.210838317871,
"group1": "group1",
"group2": "group2",
},
],
"total": 4
}
Note
It is also possible to group data by time, in order to obtain timeseries.
In order to do this, group by time
. No extra column will be added,
but you’ll get one entry per collect period in the queried timeframe.
See examples below.
Name |
In |
Type |
Description |
---|---|---|---|
begin |
body |
iso8601 timestamp |
Begin of the period for the item. |
end |
body |
iso8601 timestamp |
End of the period for the item. |
qty |
body |
float |
Qty for the item in the specified period. |
rate |
body |
float |
Rate for the item in the specified period. |
Response Example¶
Grouping by time and project_id:
curl "http://cloudkitty-api:8889/v2/summary?groupby=time&groupby=project_id&limit=3"
{
"total": 232,
"columns": [
"begin",
"end",
"qty",
"rate",
"project_id"
],
"results": [
[
"2019-10-01T06:00:00+02:00",
"2019-10-01T07:00:00+02:00",
3.5533905029296875,
1.7766952514648438,
"84631866b2d84db49b29828052bdc287"
],
[
"2019-10-01T07:00:00+02:00",
"2019-10-01T08:00:00+02:00",
3.5533905029296875,
1.7766952514648438,
"84631866b2d84db49b29828052bdc287"
],
[
"2019-10-01T08:00:00+02:00",
"2019-10-01T09:00:00+02:00",
3.5533905029296875,
1.7766952514648438,
"84631866b2d84db49b29828052bdc287"
]
]
}
curl "http://cloudkitty-api:8889/v2/summary?filters=project_id%3Afe9c35372db6420089883805b37a34af&groupby=type&groupby=project_id"
{
"columns": [
"begin",
"end",
"qty",
"rate",
"project_id",
"type"
],
"results": [
[
"2019-06-01T00:00:00Z",
"2019-07-01T00:00:00Z",
2590.421676635742,
1295.210838317871,
"fe9c35372db6420089883805b37a34af",
"image.size"
],
[
"2019-06-01T00:00:00Z",
"2019-07-01T00:00:00Z",
1354,
3625,
"fe9c35372db6420089883805b37a34af",
"instance"
],
[
"2019-06-01T00:00:00Z",
"2019-07-01T00:00:00Z",
502,
502,
"fe9c35372db6420089883805b37a34af",
"ip.floating"
],
[
"2019-06-01T00:00:00Z",
"2019-07-01T00:00:00Z",
175.9,
351.8,
"fe9c35372db6420089883805b37a34af",
"volume.size"
]
],
"total": 4
}
Task schedule endpoint¶
CloudKitty has a task endpoint /v2/task/<type_of_task>, which allows operators to schedule administrative tasks, such as reprocessing.
Currently, the only task available is the reprocessing one, which is avaiable via the following endpoints.
POST /v2/task/reprocesses – to create a reprocessing task.
GET /v2/task/reprocesses/<path_scope_id> – to retrieve a reprocessing task.
GET /v2/task/reprocesses – to retrieve all reprocessing task.
The endpoint used to schedule a reprocessing task. The scheduled tasks are loaded to execution once every processing cycle, as defined in the CloudKitty period configuration.
Name |
In |
Type |
Description |
---|---|---|---|
scope_ids |
body |
string |
The scope IDs to reprocess. Must be comma-separated to schedule more than one. One can use the keyword ALL to schedule all scopes to be reprocessed. |
start_reprocess_time |
body |
iso8601 timestamp |
The start date for the reprocessing task. |
end_reprocess_time |
body |
iso8601 timestamp |
The end date for the reprocessing task. |
reason |
body |
string |
The reason for the reprocessing to take place. |
Status codes¶
Success¶
Code |
Reason |
---|---|
200 - OK |
Request was successful. |
Error¶
Code |
Reason |
---|---|
400 - Bad Request |
Invalid request. |
403 - Forbidden |
Forbidden operation for the authentified user. |
405 - Method Not Allowed |
The method is not allowed for the requested URL. |
Response¶
We will return an empty object as the response in case of success:
{}
Example¶
curl -s -X POST "https://<cloudkitty_server_and_port_here>/v2/task/reprocesses" -H "Accept: application/json" -H "User-Agent: python-keystoneclient" -H "X-Auth-Token: ${ACCESS_TOKEN_KEYSTONE}" -H "Content-Type: application/json" -d '{"reason": "Reprocessing test", "scope_ids": "<Some scope ID>", "start_reprocess_time": "2021-06-01 00:00:00+00:00", "end_reprocess_time": "2021-06-01 23:00:00+00:00"}'
The scope IDs can be retrieved via “/v2/scope” API, which is the API that one can use to list all scopes, and their status.
The endpoint used to retrieve a reprocessing task. By using this endpoint, one can for instance check the progress of the reprocessing tasks.
Name |
In |
Type |
Description |
---|---|---|---|
path_scope_id |
path |
string |
The scope ID to retrieve. |
Status codes¶
Success¶
Code |
Reason |
---|---|
200 - OK |
Request was successful. |
Error¶
Code |
Reason |
---|---|
400 - Bad Request |
Invalid request. |
403 - Forbidden |
Forbidden operation for the authentified user. |
405 - Method Not Allowed |
The method is not allowed for the requested URL. |
Response¶
We will return the scope data in case of a valid scope ID:
{"scope_id": "scope ID goes here",
"reason": "The reason for this reprocessing for this scope",
"start_reprocess_time": "2021-06-01 00:00:00+00:00",
"end_reprocess_time": "2021-07-01 00:00:00+00:00",
"current_reprocess_time": "2021-06-06 00:00:00+00:00"}
Example¶
curl -s -X GET "https://<cloudkitty_server_and_port_here>/v2/task/reprocesses/<scope ID goes here>" -H "Accept: application/json" -H "User-Agent: python-keystoneclient" -H "X-Auth-Token: ${ACCESS_TOKEN_KEYSTONE}"
The endpoint used to retrieve all reprocessing tasks. By using this endpoint, one can retrieve all reprocessing tasks scheduled for a scope.
Name |
In |
Type |
Description |
---|---|---|---|
scope_ids (Optional) |
query |
string |
The scope IDs one wants to retrieve the reprocessing tasks of. If not informed, all reprocessing tasks, for all scopes are retrieved. |
order (Optional) |
query |
string |
The order in which reprocessing tasks are returned. By default, we
order reprocessing tasks |
Status codes¶
Success¶
Code |
Reason |
---|---|
200 - OK |
Request was successful. |
Error¶
Code |
Reason |
---|---|
400 - Bad Request |
Invalid request. |
403 - Forbidden |
Forbidden operation for the authentified user. |
405 - Method Not Allowed |
The method is not allowed for the requested URL. |
Response¶
We will return the scope data in case of a valid scope ID:
[{"scope_id": "scope ID goes here",
"reason": "The reason for this reprocessing for this scope",
"start_reprocess_time": "2021-06-01 00:00:00+00:00",
"end_reprocess_time": "2021-07-01 00:00:00+00:00",
"current_reprocess_time": "2021-06-06 00:00:00+00:00"}]
Example¶
curl -s -X GET "https://<cloudkitty_server_and_port_here>/v2/task/reprocesses" -H "Accept: application/json" -H "User-Agent: python-keystoneclient" -H "X-Auth-Token: ${ACCESS_TOKEN_KEYSTONE}"
Rating modules endpoint¶
Returns the list of all rating modules loaded. This method does not require any parameter.
Status codes¶
Success¶
Code |
Reason |
---|---|
200 - OK |
Request was successful. |
Error¶
Code |
Reason |
---|---|
400 - Bad Request |
Invalid request. |
401 - Unauthorized |
Unauthenticated user. |
403 - Forbidden |
Forbidden operation for the authentified user. |
Response¶
Name |
In |
Type |
Description |
---|---|---|---|
modules |
body |
list |
List of modules. |
Response Example¶
{
"modules": [
{
"module_id": "noop"
"description": "Dummy test module.",
"enabled": true,
"hot-config": false,
"priority": 1
},
{
"module_id": "hashmap",
"description": "HashMap rating module.",
"enabled": false,
"hot-config": true,
"priority": 2
}
]
}
Returns the details of one specific module. This method does not require any parameter.
Status codes¶
Success¶
Code |
Reason |
---|---|
200 - OK |
Request was successful. |
Error¶
Code |
Reason |
---|---|
400 - Bad Request |
Invalid request. |
401 - Unauthorized |
Unauthenticated user. |
403 - Forbidden |
Forbidden operation for the authentified user. |
404 - Not Found |
Not found. |
Response¶
Name |
In |
Type |
Description |
---|---|---|---|
module_id |
body |
string |
The id of the module |
description |
body |
string |
A quick description of the module |
enabled |
body |
bool |
Boolean representing if the module is enabled |
hot_config |
body |
bool |
Boolean representing if the module supports hot-config |
priority |
body |
int |
Priority of the module, relative to other modules |
Response Example¶
{
"module_id": "sample_id",
"description": "Sample extension",
"enabled": true,
"hot-config": false,
"priority": 2
}
Name |
In |
Type |
Description |
---|---|---|---|
enabled (Optional) |
body |
bool |
Boolean representing if the module is enabled |
priority (Optional) |
body |
int |
Priority of the module, relative to other modules |
Status codes¶
Success¶
Code |
Reason |
---|---|
204 - No Content |
Request was successful even though no content is to be returned. |
Error¶
Code |
Reason |
---|---|
400 - Bad Request |
Invalid request. |
401 - Unauthorized |
Unauthenticated user. |
403 - Forbidden |
Forbidden operation for the authentified user. |
404 - Not Found |
Not found. |
Response¶
Name |
In |
Type |
Description |
---|---|---|---|
module_id |
body |
string |
The id of the module |
description |
body |
string |
A quick description of the module |
enabled |
body |
bool |
Boolean representing if the module is enabled |
hot_config |
body |
bool |
Boolean representing if the module supports hot-config |
priority |
body |
int |
Priority of the module, relative to other modules |