stacktach/docs/api.rst
2014-01-15 20:56:10 +00:00

13 KiB

The StackTach REST Interface

JSON Response Format

StackTach uses an tabular JSON response format to make it easier for Stacky to display generic results.

The JSON response format is as follows: :

[
  ['column header', 'column header', 'column header', ...],
  ['row 1, col 1', 'row 1, col 2', 'row 1, col 3', ...],
  ['row 2, col 1', 'row 2, col 2', 'row 2, col 3', ...],
  ['row 3, col 1', 'row 3, col 2', 'row 3, col 3', ...],
  ...
]

stacky/deployments

The list of all available deployments

Example request:

GET /stacky/deployments/ HTTP/1.1
Host: example.com
Accept: application/json

Example response:

HTTP/1.1 200 OK
Vary: Accept
Content-Type: text/json

[
  ['#', 'Name'],
  [1, 'deployment name'],
  [2, 'deployment name'],
  ...
]

stacky/events

The distinct list of all event names

Example request:

GET /stacky/events/ HTTP/1.1
Host: example.com
Accept: application/json

Example response:

HTTP/1.1 200 OK
Vary: Accept
Content-Type: text/json

[
  ['Event Name'],
  ["add_fixed_ip_to_instance"],
  ["attach_volume"],
  ["change_instance_metadata"],
  ["compute.instance.create.end"],
  ["compute.instance.create.error"],
  ["compute.instance.create.start"],
  ["compute.instance.create_ip.end"],
  ...
]
query service

nova or glance. default="nova"

stacky/hosts

The distinct list of all hosts sending notifications.

Example request:

GET /stacky/hosts/ HTTP/1.1
Host: example.com
Accept: application/json

Example response:

HTTP/1.1 200 OK
Vary: Accept
Content-Type: text/json

[
  ['Host Name'],
  ["compute-1"],
  ["compute-2"],
  ["scheduler-x"],
  ["api-88"],
  ...
query service

nova or glance. default="nova" ]

stacky/uuid

Retrieve all notifications for instances with a given UUID.

Example request:

GET /stacky/uuid/?uuid=77e0f192-00a2-4f14-ad56-7467897828ea  HTTP/1.1
Host: example.com
Accept: application/json

Example response:

HTTP/1.1 200 OK
Vary: Accept
Content-Type: text/json

[
  ["#", "?", "When", "Deployment", "Event", "Host", "State",
   "State'", "Task"],
  [
      40065869,
      " ",
      "2014-01-14 15:39:22.574829",
      "region-1",
      "compute.instance.snapshot.start",
      "compute-99",
      "active",
      "",
      ""
  ],
  [
      40065879,
      " ",
      "2014-01-14 15:39:23.599298",
      "region-1",
      "compute.instance.update",
      "compute-99",
      "active",
      "active",
      "image_snapshot"
  ],
  ...
]
query uuid

UUID of desired instance.

query service

nova or glance. default="nova"

stacky/timings/uuid/

Retrieve all timings for a given instance. Timings are the time deltas between related .start and .end notifications. For example, the time difference between compute.instance.run_instance.start and compute.instance.run_instance.end.

The first column of the response will be

  • S if there is a .start event and no .end
  • E if there is a .end event and no .start
  • . if there was a .start and .end event

No time difference will be returned in the S or E cases.

Example request:

GET /stacky/timings/uuid/?uuid=77e0f192-00a2-4f14-ad56-7467897828ea  HTTP/1.1
Host: example.com
Accept: application/json

Example response:

HTTP/1.1 200 OK
Vary: Accept
Content-Type: text/json

[
  ["?", "Event", "Time (secs)"],
  [".", "compute.instance.create", "0d 00:00:55.50"],
  [".", "compute.instance.snapshot", "0d 00:14:11.71"],
  [".", "compute.instance.snapshot", "0d 00:17:31.33"],
  [".", "compute.instance.snapshot", "0d 00:16:48.88"]
  ...
]
query uuid

UUID of desired instance.

query service

nova or glance. default="nova"

stacky/summary

Returns timing summary information for each event type collected. Only notifications with .start/.end pairs are considered.

This includes: :

* the number of events seen of each type (N)
* the Minimum time seen
* the Maximum time seen
* the Average time seen

Example request:

GET /stacky/summary/  HTTP/1.1
Host: example.com
Accept: application/json

Example response:

HTTP/1.1 200 OK
Vary: Accept
Content-Type: text/json

[
  ["Event", "N", "Min", "Max", "Avg"],
  ["compute.instance.create", 50,
      "0d 00:00:52.88", "0d 01:41:14.27", "0d 00:08:26"],
  ["compute.instance.create_ip", 50,
      "0d 00:00:06.80", "5d 20:16:47.08", "0d 03:47:17"],
  ...
]
query uuid

UUID of desired instance.

query service

nova or glance. default="nova"

query limit

the number of timings to return.

query offset

offset into query result set to start from.

stacky/request

Returns all notifications related to a particular Request ID.

The ? column will be E if the event came from the .error queue. State and State' are the current state and the previous state, respectively.

Example request:

GET /stacky/request/?request_id=req-a7517402-6192-4d0a-85a1-e14051790d5a  HTTP/1.1
Host: example.com
Accept: application/json

Example response:

HTTP/1.1 200 OK
Vary: Accept
Content-Type: text/json

[
  ["#", "?", "When", "Deployment", "Event", "Host", "State",
   "State'", "Task'"
  ],
  [
      40368306,
      " ",
      "2014-01-15 15:39:34.130286",
      "region-1",
      "compute.instance.update",
      "api-1",
      "active",
      "active",
      null
  ],
  [
      40368308,
      " ",
      "2014-01-15 15:39:34.552434",
      "region-1",
      "compute.instance.update",
      "api-1",
      "active",
      null,
      null
  ],

  ...
]
query request_id

desired request ID

query when_min

unixtime to start search

query when_max

unixtime to end search

query limit

the number of timings to return.

query offset

offset into query result set to start from.

stacky/reports

Returns a list of all available reports.

The Start and End columns refer to the time span the report covers (in unixtime).

Example request:

GET /stacky/reports/ HTTP/1.1
Host: example.com
Accept: application/json

Example response:

HTTP/1.1 200 OK
Vary: Accept
Content-Type: text/json

[
  ["Id", "Start", "End", "Created", "Name", "Version"],
  [
      5971,
      1389726000.0,
      1389729599.0,
      1389730212.9474499,
      "summary for region: all",
      4
  ],
  [
      5972,
      1389729600.0,
      1389733199.0,
      1389733809.979934,
      "summary for region: all",
      4
  ],

  ...
]
query created_from

unixtime to start search

query created_to

unixtime to end search

query limit

the number of timings to return.

query offset

offset into query result set to start from.

stacky/report/<report_id>

Returns a specific report.

The contents of the report varies by the specific report, but all are in row/column format with Row 0 being a special metadata row.

Row 0 of each report is a dictionary of metadata about the report. The actual row/columns of the report start at Row 1 onwards (where Row 1 is the Column headers and Rows 2+ are the details, as with other result sets)

Example request:

GET /stacky/report/1/ HTTP/1.1
Host: example.com
Accept: application/json

Example response:

HTTP/1.1 200 OK
Vary: Accept
Content-Type: text/json

[
  {
      "4xx failure count": 0,
      "4xx failure percentage": 0.0,
      "5xx failure count": 1,
      "5xx failure percentage": 0.018284904,
      "> 30 failure count": 13,
      "> 30 failure percentage": 1.13479794,
      "cells": [
          "c0001",
          "global",
          "c0003",
          "c0004",
          "c0011",
          "c0010",
          "a0001",
          "c0012",
          "b0002",
          "a0002"
      ],
      "end": 1389729599.0,
      "failure_grand_rate": 0.2445074415308293,
      "failure_grand_total": 14,
      "hours": 1,
      "pct": 0.014999999999999999,
      "percentile": 97,
      "region": null,
      "start": 1389726000.0,
      "state failure count": 0,
      "state failure percentage": 0.0,
      "total": 411
  },
  ["Operation", "Image", "OS Type", "Min", "Max", "Med", "97%", "Requests",
   "4xx", "% 4xx", "5xx", "% 5xx", "> 30", "% > 30", "state", "% state"],
  [
      "aux",
      "snap",
      "windows",
      "0s",
      "5s",
      "0s",
      "5s",
      6,
      0,
      0.0,
      0,
      0.0,
      0,
      0.0,
      0,
      0.0
  ],
  [
      "resize",
      "base",
      "linux",
      "1s",
      "5:44s",
      "1:05s",
      "3:44s",
      9,
      0,
      0.0,
      0,
      0.0,
      0,
      0.0,
      0,
      0.0
  ],

  ...
]

stacky/show/<event_id>

Show the details on a specific notification.

The response of this operation is non-standard. It returns 3 rows:

  • The first row is the traditional row-column result set used by most commands.
  • The second row is a prettied, stringified version of the full JSON payload of the raw notification.
  • The third row is the UUID of the related instance, if any.

Example request:

GET /stacky/show/1234/  HTTP/1.1
Host: example.com
Accept: application/json

Example response:

HTTP/1.1 200 OK
Vary: Accept
Content-Type: text/json

[
  [
    ["Key", "Value"],
    ["#", 1234 ],
    ["When", "2014-01-15 20:39:44.277745"],
    ["Deployment", "region-1"],
    ["Category", "monitor.info"],
    ["Publisher", "compute-1"],
    ["State", "active"],
    ["Event", "compute.instance.update"],
    ["Service", "compute"],
    ["Host", "compute-1"],
    ["UUID", "8eba1a6d-43eb-1343-8d1a-5e596f5233b5"],
    ["Req ID", "req-1368539d-f645-4d96-842e-03b5c5c9dc8c"],
    ...
  ],
  "[\n  \"monitor.info\", \n  {\n    \"_context_request_id\": \"req-13685e9d-f645-4d96-842e-03b5c5c9dc8c\", \n    \"_context_quota_class\": null, \n    \"event_type\": \"compute.instance.update\", \n    \"_context_service_catalog\": [], \n    \"_context_auth_token\": \"d81a25d03bb340bb82b4b67d105cc42d\", \n    \"_context_user_id\": \"b83e2fac644c4215bc449fb4b5c9bbfa\", \n    \"payload\": {\n      \"state_description\": \"\", \n      \"availability_zone\": null, \n      \"terminated_at\": \"\", \n      \"ephemeral_gb\": 300, \n ...",
  "8eba1a6d-43eb-1343-8d1a-5e596f5233b5"
]
query service

nova or glance. default="nova"

query event_id

desired Event ID

stacky/watch/<deployment_id>

stacky/search

stacky/kpi

stacky/kpi/<tenant_id>

stacky/usage/launches

stacky/usage/deletes

stacky/usage/exists