A Jenkins plugin for automatically forwarding metrics, events, and service checks to a Datadog account.
Note: The Jenkins CI plugin page for this plugin references this documentation.
Setup
Installation
This plugin requires Jenkins 2.361.4 and Java 11.
For older versions of Jenkins (i.e 1.632+), you can find the 1.2.0 version of the plugin here.
This plugin can be installed from the Update Center (found at Manage Jenkins -> Manage Plugins
) in your Jenkins installation:
- Select the
Available
tab, search for Datadog
, and select the checkbox next to Datadog Plugin
. - Install the plugin by using one of the two install buttons at the bottom of the screen.
- To verify the plugin is installed, search for
Datadog Plugin
on the Installed
tab.
Continue below for configuration.
Note: If you see an unexpected version of the Datadog Plugin
, run Check Now
from the Manage Jenkins -> Manage Plugins
screen.
Configuration
There are two ways to configure your plugin to submit data to Datadog:
- Using a Datadog Agent that acts as a forwarder between Jenkins and Datadog (recommended).
- When using a DogStatsD server instead of a full Datadog Agent, only metrics and events are supported.
- For data submitted from an external host, the Datadog Agent requires the following configuration:
dogstatsd_non_local_traffic: true
and apm_non_local_traffic: true
. This can be configured using the datadog.yaml
configuration file.
- Sending data directly to Datadog through HTTP.
- The HTTP client implementation used is blocking with a timeout duration of 1 minute. If there is a connection problem with Datadog, it may slow your Jenkins instance down.
The configuration can be done from the plugin user interface with a Groovy script, or through environment variables.
Plugin user interface
To configure your Datadog Plugin, navigate to the Manage Jenkins -> Configure System
page on your Jenkins installation. Once there, scroll down to find the Datadog Plugin
section:
HTTP forwarding
- Select the radio button next to Use Datadog API URL and Key to report to Datadog (selected by default).
- Paste your Datadog API key in the
API Key
textbox on the Jenkins configuration screen. If you would like to store your API key with the Credentails Manager, create a Credential for the API key and select that credential in the Datadog API Key (Select from Credentials)
dropdown. - Test your Datadog API key by using the
Test Key
button on the Jenkins configuration screen directly below the API key textbox. - (optional) Enter the hostname of the Jenkins server in the Advanced tab to include it with the events.
- (optional) Enter your Datadog Log Intake URL and select “Enable Log Collection” in the Advanced tab.
- (optional) Select “Enable CI Visibility”, optionally configuring your CI Instance name.
- Save your configuration.
Datadog Agent forwarding
- Select the radio button next to Use the Datadog Agent to report to Datadog.
- Specify your Datadog Agent
hostname
and port
. - (optional) Enter the hostname of the Jenkins server in the Advanced tab to include it with the events.
- (optional) Enter your Log Collection Port, configure log collection in the Datadog Agent, and select “Enable Log Collection”.
- (optional) Enter your Trace Collection Port and select “Enable CI Visibility”, optionally configuring your CI Instance name.
- Save your configuration.
Groovy script
Configure your Datadog plugin to forward data through HTTP or DogStatsD using the Groovy scripts below. Configuring the plugin this way might be useful if you’re running your Jenkins Master in a Docker container using the official Jenkins Docker image or any derivative that supports plugins.txt
and Groovy init scripts.
HTTP forwarding using Groovy
import jenkins.model.*
import org.datadog.jenkins.plugins.datadog.DatadogGlobalConfiguration
def j = Jenkins.getInstance()
def d = j.getDescriptor("org.datadog.jenkins.plugins.datadog.DatadogGlobalConfiguration")
// If you want to use Datadog API URL and Key to report to Datadog
d.setReportWith('HTTP')
d.setTargetApiURL('https://api.datadoghq.com/api/')
d.setTargetApiKey('<DATADOG_API_KEY>')
// Customization, see dedicated section below
d.setExcluded('job1,job2')
// If you want to collect logs
d.setLogIntakeUrl('https://http-intake.logs.datadoghq.com/v1/input/')
// Save config
d.save()
Datadog Agent forwarding using Groovy
import jenkins.model.*
import org.datadog.jenkins.plugins.datadog.DatadogGlobalConfiguration
def j = Jenkins.getInstance()
def d = j.getDescriptor("org.datadog.jenkins.plugins.datadog.DatadogGlobalConfiguration")
d.setReportWith('DSD')
d.setTargetHost('localhost')
d.setTargetPort(8125)
// If you want to collect logs
d.setTargetLogCollectionPort(10518)
d.setCollectBuildLogs(true)
// If you want to enable CI Visibility
d.setTargetTraceCollectionPort(8126)
d.setEnableCiVisibility(true)
d.setCiInstanceName("jenkins")
// Customization, see dedicated section below
d.setExcluded('job1,job2')
// Save config
d.save()
Environment variables
Configure your Datadog plugin using environment variables with the DATADOG_JENKINS_PLUGIN_REPORT_WITH
variable, which specifies the report mechanism to use.
HTTP forwarding using environment variables
- Set the
DATADOG_JENKINS_PLUGIN_REPORT_WITH
variable to HTTP
. - Set the
DATADOG_JENKINS_PLUGIN_TARGET_API_URL
variable, which specifies the Datadog API endpoint (defaults to https://api.datadoghq.com/api/
). - Set the
DATADOG_JENKINS_PLUGIN_TARGET_API_KEY
variable, which specifies your Datadog API key. - (optional) Log Collection:
- Set the
DATADOG_JENKINS_PLUGIN_COLLECT_BUILD_LOGS
variable to true
in order to enable log collection (disabled by default). - Set the
DATADOG_JENKINS_PLUGIN_TARGET_LOG_INTAKE_URL
variable, which specifies the Datadog Log Intake URL (defaults to https://http-intake.logs.datadoghq.com/v1/input/
).
- (optional) CI Visibility (trace collection):
- Set the
DATADOG_JENKINS_PLUGIN_ENABLE_CI_VISIBILITY
variable to true
in order to enable CI Visibility (disabled by default). - Set the
DATADOG_JENKINS_TARGET_WEBHOOK_INTAKE_URL
variable, which specifies the Datadog Webhook Intake URL (defaults to https://webhook-intake.datadoghq.com/api/v2/webhook/
). - Set the
DATADOG_JENKINS_PLUGIN_CI_VISIBILITY_CI_INSTANCE_NAME
variable, which specifies the name of the Jenkins instance for CI Visibility (defaults to jenkins
).
Datadog Agent forwarding using environment variables
- Set the
DATADOG_JENKINS_PLUGIN_REPORT_WITH
variable to DSD
. - Set the
DATADOG_JENKINS_PLUGIN_TARGET_HOST
variable, which specifies the DogStatsD server host (defaults to localhost
). - Set the
DATADOG_JENKINS_PLUGIN_TARGET_PORT
variable, which specifies the DogStatsD server port (defaults to 8125
). - (optional) Log Collection:
- Enable log collection in the Datadog Agent.
- Set the
DATADOG_JENKINS_PLUGIN_COLLECT_BUILD_LOGS
variable to true
in order to enable log collection (disabled by default). - Set the
DATADOG_JENKINS_PLUGIN_TARGET_LOG_COLLECTION_PORT
variable, which specifies the Datadog Agent log collection port.
- (optional) CI Visibility (trace collection):
- Set the
DATADOG_JENKINS_PLUGIN_ENABLE_CI_VISIBILITY
variable to true
in order to enable CI Visibility (disabled by default). - Set the
DATADOG_JENKINS_PLUGIN_TARGET_TRACE_COLLECTION_PORT
variable, which specifies the Datadog Agent trace collection port (defaults to 8126
). - Set the
DATADOG_JENKINS_PLUGIN_CI_VISIBILITY_CI_INSTANCE_NAME
variable, which specifies the name of the Jenkins instance for CI Visibility (defaults to jenkins
).
Additionally, you can use the standard Datadog environment variables:
- Set the
DD_AGENT_HOST
variable, which specifies the Datadog Agent host. - Set the
DD_AGENT_PORT
variable, which specifies the DogStatsD server port. - Set the
DD_TRACE_AGENT_PORT
variable, which specifies the Datadog Agent trace collection port. - Set the
DD_TRACE_AGENT_URL
variable, which specifies the Datadog Agent URL to send traces. When set this takes precedence over DD_AGENT_HOST
and DD_TRACE_AGENT_PORT
.
The environment variables with the DATADOG_JENKINS_PLUGIN
namespace take precedence over the standard Datadog environment variables.
Logging
Logging is done by utilizing the java.util.Logger
, which follows the best logging practices for Jenkins.
The plugin automatically registers a custom logger named “Datadog Plugin Logs” that writes the plugin’s logs with level INFO
or higher.
The custom logger registration can be disabled by setting the DD_JENKINS_PLUGIN_LOG_RECORDER_ENABLED
environment variable to false
.
If you want to see the plugin logs with maximum detail, manually change the level of the custom logger to ALL
.
Customization
Pipeline customization
The Datadog plugin adds a datadog
step that provides some configuration option for your pipeline-based jobs.
Option (type) | Description |
---|
collectLogs (boolean ) | When log collection is disabled globally, this enables it for the pipeline. |
tags (String[] ) | A list of tags to attach to all the data collected about the pipeline. |
In declarative pipelines, add the step to a top-level options
block like so:
pipeline {
agent any
options {
datadog(collectLogs: true, tags: ["foo:bar", "bar:baz"])
}
stages {
stage('Example') {
steps {
echo "Hello world."
}
}
}
}
In scripted pipeline, wrap the relevant section with the datadog step like so:
datadog(collectLogs: true, tags: ["foo:bar", "bar:baz"]) {
node {
stage('Example') {
echo "Hello world."
}
}
}
Note: Pipeline customizations are only registered after a job has started. Tags specified in pipeline customization will not be associated with jenkins.job.started
.
Global customization
To customize your global configuration, in Jenkins navigate to Manage Jenkins -> Configure System
then click the Advanced button. The following options are available:
Customization | Description | Environment variable |
---|
Hostname | A hostname to use in every event sent to Datadog. | DATADOG_JENKINS_PLUGIN_HOSTNAME |
Excluded jobs | A comma-separated list of regex used to exclude job names from monitoring, for example: susans-job,johns-.*,prod_folder/prod_release . This setting affects all aspects of the plugin: events, metrics, logs, CI visibility. | DATADOG_JENKINS_PLUGIN_EXCLUDED |
Included jobs | A comma-separated list of regex used to include job names for monitoring, for example: susans-job,johns-.*,prod_folder/prod_release . This setting affects all aspects of the plugin: events, metrics, logs, CI visibility. | DATADOG_JENKINS_PLUGIN_INCLUDED |
Global tag file | The path to a workspace file containing a comma separated list of tags (not compatible with pipeline jobs). | DATADOG_JENKINS_PLUGIN_GLOBAL_TAG_FILE |
Global tags | A comma-separated list of tags to apply to all metrics, events, and service checks. Tags can include environment variables that are defined in the master jenkins instance. | DATADOG_JENKINS_PLUGIN_GLOBAL_TAGS |
Global job tags | A comma separated list of regex to match a job and a list of tags to apply to that job. Tags can include environment variables that are defined in the master jenkins instance. Note: Tags can reference match groups in the regex using the $ symbol, for example: (.*?)_job_(*?)_release, owner:$1, release_env:$2, optional:Tag3 | DATADOG_JENKINS_PLUGIN_GLOBAL_JOB_TAGS |
Send security audit events | Submits the Security Events Type of events and metrics (enabled by default). | DATADOG_JENKINS_PLUGIN_EMIT_SECURITY_EVENTS |
Send system events | Submits the System Events Type of events and metrics (enabled by default). | DATADOG_JENKINS_PLUGIN_EMIT_SYSTEM_EVENTS |
Include events to send | A comma-separated list of event name strings to send, regardless of the event type being enabled/disabled. | DATADOG_JENKINS_PLUGIN_INCLUDE_EVENTS |
Exclude events to send | A comma-separated list of event name strings not to send, regardless of the event type being enabled/disabled. | DATADOG_JENKINS_PLUGIN_EXCLUDE_EVENTS |
Job customization
From a job specific configuration page:
Customization | Description |
---|
Custom tags | Set from a File in the job workspace (not compatible with pipeline jobs) or as text Properties directly from the configuration page. If set, this overrides the Global Job Tags configuration. |
Send source control management events | Submits the Source Control Management Events Type of events and metrics (enabled by default). |
Test Visibility Configuration
The plugin can automatically configure Datadog Test Visibility for a job or a pipeline (see the Test Visibility documentation for your language to make sure that the testing framework that you use is supported; also note that automatic configuration is not supported for tests that are executed inside containers - follow manual instrumentation steps to enable Test Visibility for containerized test runs).
Before enabling Test Visibility, be sure to properly configure the plugin to submit data to Datadog.
There are two options to enable automatic Test Visibility configuration:
- Using Jenkins UI (available in the plugin v5.6.0 or newer): go to the Configure page of the job or pipeline whose tests need to be traced, tick the Enable Datadog Test Visibility checkbox in the General section, and save your changes. This option is unavailable if you are using Multibranch Pipelines, Organization Folders, or other types of pipelines that are configured entirely with
Jenkinsfile
. - Using
datadog
pipeline step (available in the plugin v5.6.2 or newer):
In declarative pipelines, add the step to a top-level options
block like so:
pipeline {
agent any
options {
datadog(testVisibility: [
enabled: true,
serviceName: "my-service", // the name of service or library being tested
languages: ["JAVA"], // languages that should be instrumented (available options are "JAVA", "JAVASCRIPT", "PYTHON", "DOTNET")
additionalVariables: ["my-var": "value"] // additional tracer configuration settings (optional)
])
}
stages {
stage('Example') {
steps {
echo "Hello world."
}
}
}
}
In scripted pipelines, wrap the relevant section with the datadog
step like so:
datadog(testVisibility: [ enabled: true, serviceName: "my-service", languages: ["JAVA"], additionalVariables: [:] ]) {
node {
stage('Example') {
echo "Hello world."
}
}
}
The other datadog
settings, such as collectLogs
or tags
can be added alongside the testVisibility
block.
Please bear in mind that Test Visibility is a separate Datadog product that is billed separately.
Data collected
This plugin is collecting the following events, metrics, and service checks:
Events
Default events type
Event name | Triggered on | Default tags | Associated RATE metric |
---|
BuildStarted | RunListener#onStarted | branch , event_type , jenkins_url , job , node , user_id | jenkins.job.started |
BuildAborted | RunListener#onDeleted | branch , event_type , jenkins_url , job , node , user_id | jenkins.job.aborted |
BuildCompleted | RunListener#onCompleted | branch , event_type , jenkins_url , job , node , result , user_id | jenkins.job.completed |
SCMCheckout | SCMListener#onCheckout | branch , event_type , jenkins_url , job , node , user_id | jenkins.scm.checkout |
NOTE: event_type
is always set to default
for above events and metrics.
Systems events type
Event name | Triggered on | Default tags | Associated RATE metric |
---|
ComputerOnline | ComputerListener#onOnline | event_type , jenkins_url , node_hostname , node_name , node_label | jenkins.computer.online |
ComputerOffline | ComputerListener#onOffline | event_type , jenkins_url , node_hostname , node_name , node_label | jenkins.computer.offline |
ComputerTemporarilyOnline | ComputerListener#onTemporarilyOnline | event_type , jenkins_url , node_hostname , node_name , node_label | jenkins.computer.temporarily_online |
ComputerTemporarilyOffline | ComputerListener#onTemporarilyOffline | event_type , jenkins_url , node_hostname , node_name , node_label | jenkins.computer.temporarily_offline |
ComputerLaunchFailure | ComputerListener#onLaunchFailure | event_type , jenkins_url , node_hostname , node_name , node_label | jenkins.computer.launch_failure |
ItemCreated | ItemListener#onCreated | event_type , jenkins_url , user_id | jenkins.item.created |
ItemDeleted | ItemListener#onDeleted | event_type , jenkins_url , user_id | jenkins.item.deleted |
ItemUpdated | ItemListener#onUpdated | event_type , jenkins_url , user_id | jenkins.item.updated |
ItemCopied | ItemListener#onCopied | event_type , jenkins_url , user_id | jenkins.item.copied |
ItemLocationChanged | ItemListener#onLocationChanged | event_type , jenkins_url , user_id | jenkins.item.location_changed |
NOTE: event_type
is always set to system
for above events and metrics.
Security events type
Event name | Triggered on | Default tags | Associated RATE metric |
---|
UserAuthenticated | SecurityListener#authenticated | event_type , jenkins_url , user_id | jenkins.user.authenticated |
UserFailedToAuthenticate | SecurityListener#failedToAuthenticate | event_type , jenkins_url , user_id | jenkins.user.access_denied |
UserLoggedOut | SecurityListener#loggedOut | event_type , jenkins_url , user_id | jenkins.user.logout |
NOTE: event_type
is always set to security
for above events and metrics.
Filtering events
This plugin allows you to filter events by the event type as well as the specific event names listed
above. To include/exclude all events of the system or security type:
- In the UI: Uncheck the checkboxes for these events.
- In a groovy script: Fetch the Datadog global descriptor and call either
d.setEmitSystemEvents()
or d.setEmitSecurityEvents()
. - In the environment variables section: Set the environment variables for the emitting security or system events.
To get more specific control over what events are sent, three configuration options are provided to allow a comma-separated include/exclude list of strings of event names. The include/exclude list has precedence over filtering by event type. For example, security
events can be toggled off, but including UserAuthenticated
takes precedence, so only UserAuthenticated
events will be sent from the security
type. In the UI, text boxes are provided for both the included and excluded lists. In a groovy script, the methods d.setIncludeEvents()
and d.setExcludeEvents()
accept a comma-separated list of event names as input which is another valid configuration method. Lastly, there are provided environment variables for manually setting included/excluded lists.
NOTE: As mentioned in the job customization section, there are job-specific toggles to send SCMCheckout
events. If the SCMCheckout
event is excluded globally, this toggle will have no effect.
Metrics
Metric Name | Description | Default Tags |
---|
jenkins.computer.launch_failure | Rate of computer launch failures. | jenkins_url |
jenkins.computer.offline | Rate of computer going offline. | jenkins_url |
jenkins.computer.online | Rate of computer going online. | jenkins_url |
jenkins.computer.temporarily_offline | Rate of computer going temporarily offline. | jenkins_url |
jenkins.computer.temporarily_online | Rate of computer going temporarily online. | jenkins_url |
jenkins.config.changed | Rate of configs being changed. | jenkins_url , user_id |
jenkins.executor.count | Executor count. | jenkins_url , node_hostname , node_name , node_label |
jenkins.executor.free | Number of unused executor. | jenkins_url , node_hostname , node_name , node_label |
jenkins.executor.in_use | Number of idle executor. | jenkins_url , node_hostname , node_name , node_label |
jenkins.item.copied | Rate of items being copied. | jenkins_url , user_id |
jenkins.item.created | Rate of items being created. | jenkins_url , user_id |
jenkins.item.deleted | Rate of items being deleted. | jenkins_url , user_id |
jenkins.item.location_changed | Rate of items being moved. | jenkins_url , user_id |
jenkins.item.updated | Rate of items being updated. | jenkins_url , user_id |
jenkins.job.aborted | Rate of aborted jobs. | branch , jenkins_url , job , node , user_id |
jenkins.job.build_duration | Build duration without pause (in seconds). | branch , jenkins_url , job , node , result , user_id |
jenkins.job.completed | Rate of completed jobs. | branch , jenkins_url , job , node , result , user_id |
jenkins.job.cycletime | Build Cycle Time (in seconds). | branch , jenkins_url , job , node , result , user_id |
jenkins.job.duration | Build duration (in seconds). | branch , jenkins_url , job , node , result , user_id |
jenkins.job.feedbacktime | Feedback time from code commit to job failure (in seconds). | branch , jenkins_url , job , node , result , user_id |
jenkins.job.leadtime | Build Lead Time. | branch , jenkins_url , job , node , result , user_id |
jenkins.job.mtbf | MTBF, time between last successful job and current failed job (in seconds). | branch , jenkins_url , job , node , result , user_id |
jenkins.job.mttr | MTTR: time between last failed job and current successful job (in seconds). | branch , jenkins_url , job , node , result , user_id |
jenkins.job.pause_duration | Pause duration of build job (in seconds). | branch , jenkins_url , job , node , result , user_id |
jenkins.job.started | Rate of started jobs. | branch , jenkins_url , job , node , user_id |
jenkins.job.stage_duration | Duration of individual stages. | jenkins_url , job , user_id , stage_name , stage_depth , stage_parent , result |
jenkins.job.stage_pause_duration | Pause duration of individual stages (in milliseconds). | jenkins_url , job , user_id , stage_name , stage_depth , stage_parent , result |
jenkins.job.stage_completed | Rate of completed stages. | jenkins_url , job , user_id , stage_name , stage_depth , stage_parent , result |
jenkins.job.waiting | Time spent waiting for job to run (in seconds). | branch , jenkins_url , job , node , user_id |
jenkins.job.currently_building | Count of currently building jobs (does not include jobs that were scheduled but have not started yet). | jenkins_url |
jenkins.node.count | Total number of node. | jenkins_url |
jenkins.node.offline | Offline nodes count. | jenkins_url |
jenkins.node.online | Online nodes count. | jenkins_url |
jenkins.node_status.count | If this node is present. | jenkins_url , node_hostname , node_name , node_label |
jenkins.node_status.up | If a given node is online, value 1. Otherwise, 0. | jenkins_url , node_hostname , node_name , node_label |
jenkins.plugin.count | Plugins count. | jenkins_url |
jenkins.plugin.active | Plugins active. | jenkins_url |
jenkins.plugin.failed | Plugins failed. | jenkins_url |
jenkins.plugin.inactivate | Plugins inactive. | jenkins_url |
jenkins.plugin.withUpdate | Plugins with update. | jenkins_url |
jenkins.project.count | Project count. | jenkins_url |
jenkins.queue.size | Queue Size. | jenkins_url |
jenkins.queue.buildable | Number of Buildable item in Queue. | jenkins_url |
jenkins.queue.pending | Number of Pending item in Queue. | jenkins_url |
jenkins.queue.stuck | Number of Stuck item in Queue. | jenkins_url |
jenkins.queue.blocked | Number of Blocked item in Queue. | jenkins_url |
jenkins.queue.job.in_queue | Number of times a Job has been in a Queue. | jenkins_url , job_name |
jenkins.queue.job.buildable | Number of times a Job has been Buildable in a Queue. | jenkins_url , job_name |
jenkins.queue.job.pending | Number of times a Job has been Pending in a Queue. | jenkins_url , job_name |
jenkins.queue.job.stuck | Number of times a Job has been Stuck in a Queue. | jenkins_url , job_name |
jenkins.queue.job.blocked | Number of times a Job has been Blocked in a Queue. | jenkins_url , job_name |
jenkins.scm.checkout | Rate of SCM checkouts. | branch , jenkins_url , job , node , user_id |
jenkins.user.access_denied | Rate of users failing to authenticate. | jenkins_url , user_id |
jenkins.user.authenticated | Rate of users authenticating. | jenkins_url , user_id |
jenkins.user.logout | Rate of users logging out. | jenkins_url , user_id |
Log Collection for Agents
Note: This configuration only applies to those using the Datadog Agent configuration.
Collecting logs is disabled by default in the Datadog Agent, enable it in your datadog.yaml
file:
To collect Jenkins logs, create a custom log source file for your Agent by creating a conf.yaml
inside conf.d/jenkins.d
with the following:
logs:
- type: tcp
port: <PORT>
service: <SERVICE>
source: jenkins
In Jenkins, submit the port you specified above as the Log Collection Port
. You can set this using environment variables, a Groovy script, or the Jenkins UI.
Restart the Agent.
Service checks
Build status jenkins.job.status
with the default tags: : jenkins_url
, job
, node
, user_id
Troubleshooting
Generating a diagnostic flare.
Plugin diagnostic flare contains data that can be used to diagnose problems with the plugin.
At the time of this writing the flare includes the following:
- plugin configuration in XML format
- plugin connectivity checks results
- runtime data (current versions of JVM, Jenkins Core, plugin)
- recent exceptions that happened inside the plugin code
- plugin logs with level
INFO
and above, and recent Jenkins controller logs - current stacks of the threads of the Jenkins controller process
- environment variables starting with
DD_
or DATADOG_
(except API key and/or APP key)
To generate a flare go to the Manage Jenkins
page, find the Troubleshooting
section, and select Datadog
.
Click on Download Diagnostic Flare
(requires “MANAGE” permissions) to generate the flare.
Issue tracking
GitHub’s built-in issue tracking system is used to track all issues relating to this plugin: jenkinsci/datadog-plugin/issues.
However, given how Jenkins plugins are hosted, there may be issues that are posted to JIRA as well. You can check this jenkins issue for those issue postings.
Note: Unresolved issues on JIRA mentioning Datadog.
Changes
See the CHANGELOG.md.
How to contribute code
First of all and most importantly, thank you for sharing.
Checkout the contributing guidelines before you submit an issue or a pull request.
Checkout the development document for tips on spinning up a quick development environment locally.