API definition (draft)¶
General information¶
GET operations will be non-authenticated. POST operations will require
authentication using username+password.
Password information is stored in the database using the SHA512 hash.
All data will be sent/received using JSON objects, unless stated otherwise.
API calls¶
GET /api/last_tested_repo¶
Get the last tested repo since a specific time.
If a job_id is specified, the order of precedence for the repo returned is:
- The last tested repo within that timeframe for that CI job.
- The last tested repo within that timeframe for any CI job, so we can have several CIs converge on a single repo.
- The last “consistent” repo, if no repo has been tested in the timeframe.
If sequential_mode is set to true, a different algorithm is used. Another
parameter previous_job_id needs to be specified, and the order of
precedence for the repo returned is:
- The last tested repo within that timeframe for the CI job described by
previous_job_id. - If no repo for
previous_job_idis found, an error will be returned
The sequential mode is meant to be used by CI pipelines, where a CI (n) job needs to use the same repo tested by CI (n-1).
Normal response codes: 200
Error response codes: 400, 404, 415
Request:
| Parameter | Type | Description |
|---|---|---|
| max_age | integer | Maximum age (in hours) for the repo to be considered. Any repo tested or being tested after “now - max_age” will be taken into account. If set to 0, all repos will be considered. |
| success | boolean (optional) | If set to a value, find repos with a successful/unsuccessful vote (as specified). If not set, any tested repo will be considered. |
| job_id | string (optional) | Name of the CI that sent the vote. If not set, no filter will be set on CI. |
| sequential_mode | boolean (optional) | Use the sequential mode algorithm. In this case, return the last tested repo within that timeframe for the CI job described by previous_job_id. Defaults to false. |
| previous_job_id | string (optional) | If sequential_mode is set to true, look for jobs tested by the CI identified by previous_job_id. |
Response:
| Parameter | Type | Description |
|---|---|---|
| commit_hash | string | commit_hash of tested repo |
| distro_hash | string | distro_hash of tested repo |
| success | boolean | whether the test was successful or not |
| job_id | string | name of the CI sending the vote |
| in_progress | boolean | is this CI job still in-progress? |
| timestamp | integer | timestamp for the repo |
GET /api/repo_status¶
Get all the CI reports for a specific repository.
Normal response codes: 200
Error response codes: 400, 404, 415
Request:
| Parameter | Type | Description |
|---|---|---|
| commit_hash | string | commit_hash of the repo to fetch information for |
| distro_hash | string | distro_hash of the repo to fetch information for |
| success | boolean (optional) | If set to a value, only return the CI reports with the specified vote. If not set, return all CI reports. |
Response:
The JSON output will contain an array where each item contains:
| Parameter | Type | Description |
|---|---|---|
| job_id | string | name of the CI sending the vote |
| commit_hash | string | commit_hash of tested repo |
| distro_hash | string | distro_hash of tested repo |
| url | string | URL where to find additional information from the CI execution |
| timestamp | integer | Timestamp (in seconds since the epoch) |
| in_progress | boolean | False -> is this CI job still in-progress? |
| success | boolean | Was the CI execution successful? |
| notes | Text | Additional notes |
GET /api/promotions¶
Get all the promotions, optionally for a specific repository or promotion name. The output will be sorted by the promotion timestamp, with the newest first, and limited to 100 results per query.
Normal response codes: 200
Error response codes: 400, 404, 415
Request:
| Parameter | Type | Description |
|---|---|---|
| commit_hash | string (optional) | If set, commit_hash of the repo to use as filter key. Requires distro_hash. |
| distro_hash | string (optional) | If set, commit_hash of the repo to use as filter key. Requires commit_hash. |
| promote_name | string (optional) | If set to a value, filter results by the specified promotion name. |
| offset | integer (optional) | If set to a value, skip the initial <offset> promotions. |
The JSON output will contain an array where each item contains:
| Parameter | Type | Description |
|---|---|---|
| commit_hash | string | commit_hash of the promoted repo |
| distro_hash | string | distro_hash of the promoted repo |
| promote_name | string | name used for the promotion |
| timestamp | integer | Timestamp (in seconds since the epoch) |
The array will be sorted by the promotion timestamp, with the newest first.
POST /api/last_tested_repo¶
Get the last tested repo since a specific time (optionally for a CI job), and add an “in progress” entry in the CI job table for this.
If a job_id is specified, the order of precedence for the repo returned is:
- The last tested repo within that timeframe for that CI job.
- The last tested repo within that timeframe for any CI job, so we can have several CIs converge on a single repo.
- The last “consistent” repo, if no repo has been tested in the timeframe.
If sequential_mode is set to true, a different algorithm is used. Another
parameter previous_job_id needs to be specified, and the order of
precedence for the repo returned is:
- The last tested repo within that timeframe for the CI job described by
previous_job_id. - If no repo for
previous_job_idis found, an error will be returned
The sequential mode is meant to be used by CI pipelines, where a CI (n) job needs to use the same repo tested by CI (n-1).
Normal response codes: 201
Error response codes: 404, 415
Request:
| Parameter | Type | Description |
|---|---|---|
| max_age | integer | Maximum age (in hours) for the repo to be considered. Any repo tested or being tested after “now - max_age” will be taken into account. If set to 0, all repos will be considered. |
| reporting_job_id | string | Name of the CI that will add the “in progress” entry in the CI job table |
| success | boolean (optional) | If set to a value, find repos with a successful/unsuccessful vote (as specified). If not set, any tested repo will be considered. |
| job_id | string (optional) | name of the CI that sent the vote. If not set, no filter will be set on CI. |
| sequential_mode | boolean (optional) | Use the sequential mode algorithm. In this case, return the last tested repo within that timeframe for the CI job described by previous_job_id. Defaults to false. |
| previous_job_id | string (optional) | If sequential_mode is set to true, look for jobs tested by the CI identified by previous_job_id. |
Response:
| Parameter | Type | Description |
|---|---|---|
| commit_hash | string | commit_hash of tested repo |
| distro_hash | string | distro_hash of tested repo |
| success | boolean | whether the test was successful or not |
| job_id | string | name of the CI sending the vote |
| in_progress | boolean | True -> is this CI job still in-progress? |
| timestamp | integer | Timestamp for this CI Vote (taken from the DLRN system time) |
POST /api/report_result¶
Report the result of a CI job.
Normal response codes: 201
Error response codes: 400, 404, 415, 500
Request:
| Parameter | Type | Description |
|---|---|---|
| job_id | string | name of the CI sending the vote |
| commit_hash | string | commit_hash of tested repo |
| distro_hash | string | distro_hash of tested repo |
| url | string | URL where to find additional information from the CI execution |
| timestamp | integer | Timestamp (in seconds since the epoch) |
| success | boolean | Was the CI execution successful? |
| notes | Text | Additional notes (optional) |
Response:
| Parameter | Type | Description |
|---|---|---|
| job_id | string | name of the CI sending the vote |
| commit_hash | string | commit_hash of tested repo |
| distro_hash | string | distro_hash of tested repo |
| url | string | URL where to find additional information from the CI execution |
| timestamp | integer | Timestamp (in seconds since the epoch) |
| in_progress | boolean | False -> is this CI job still in-progress? |
| success | boolean | Was the CI execution successful? |
| notes | Text | Additional notes |
POST /api/promote¶
Promote a repository. This can be implemented as a local symlink creation in the DLRN worker, or any other form in the future.
Note the API will refuse to promote using promote_name=”consistent” or “current”, since those are reserved keywords for DLRN.
Normal response codes: 201
Error response codes: 400, 403, 404, 415, 500
Request:
| Parameter | Type | Description |
|---|---|---|
| commit_hash | string | commit_hash of the repo to be promoted |
| distro_hash | string | distro_hash of the repo to be promoted |
| promote_name | string | name to be used for the promotion. In the current implementation, this is the name of the symlink to be created |
Response:
| Parameter | Type | Description |
|---|---|---|
| commit_hash | string | commit_hash of the promoted repo |
| distro_hash | string | distro_hash of the promoted repo |
| promote_name | string | name used for the promotion |
| timestamp | integer | Timestamp (in seconds since the epoch) |
POST /api/remote/import¶
Import a commit built by another instance. This API call mimics the behavior of the
dlrn-remote command, with the only exception of not being able to specify a custom
rdoinfo location.
Normal response codes: 201
Error response codes: 400, 415, 500
Request:
| Parameter | Type | Description |
|---|---|---|
| repo_url | string | Base repository URL for remotely generated repo |
Response:
| Parameter | Type | Description |
|---|---|---|
| repo_url | string | Base repository URL for imported remote repo |
Running the API server using WSGI¶
Requirements¶
It is possible to run the DLRN API server as a WSGI process in Apache. To do this, you need to install the following packages:
$ sudo yum -y install httpd mod_wsgi
WSGI file and httpd configuration¶
To run the application, you need to create a WSGI file. For example, create
/var/www/dlrn/dlrn-api.wsgi with the following contents:
import os
import sys
sys.path.append('/home/centos-master/.venv/lib/python2.7/site-packages/')
def application(environ, start_response):
os.environ['CONFIG_FILE'] = environ['CONFIG_FILE']
from dlrn.api import app
return app(environ, start_response)
You need to change the path appended using sys.path.append to be the path
to the virtualenv where you have installed DLRN.
Then, create an httpd configuration file to load the WSGI application. The
following is an example file, named /etc/httpd/conf.d/wsgi-dlrn.conf:
<VirtualHost *>
ServerName example.com
WSGIDaemonProcess dlrn user=centos-master group=centos-master threads=5
WSGIScriptAlias / /var/www/dlrn/dlrn-api-centos-master.wsgi
SetEnv CONFIG_FILE /etc/dlrn/dlrn-api.cfg
<Directory /var/www/dlrn>
WSGIProcessGroup dlrn
WSGIApplicationGroup %{GLOBAL}
WSGIScriptReloading On
Order deny,allow
Allow from all
</Directory>
</VirtualHost>
Set CONFIG_FILE to the path of the DLRN configuration file, and make sure
you specify the right user and group for the WSGIDaemonProcess line.
DLRN API configuration¶
The DLRN API take a default configuration from file dlrn/api/config.py.
Since it may not match your actual configuration when deployed as an WSGI
application, you can create a configuration file, /etc/dlrn/dlrn-api.cfg
in the above example, with the following syntax:
DB_PATH = 'sqlite:////home/centos-master/DLRN/commits.sqlite'
REPO_PATH = '/home/centos-master/DLRN/data/repos'
CONFIG_FILE = 'projects.ini'
Where DB_PATH is the path to the SQLite database for your environment,
REPO_PATH will point to the base directory for the generated repositories,
and CONFIG_FILE will point to the projects.ini file used when running
DLRN.