Docker Hub repository

Plugin: go.d.plugin Module: dockerhub

Overview

This collector keeps track of DockerHub repositories statistics such as the number of stars, pulls, current status, and more.

This collector is supported on all platforms.

This collector supports collecting metrics from multiple instances of this integration, including remote instances.

Default Behavior

Auto-Detection

This integration doesn't support auto-detection.

Limits

The default configuration for this integration does not impose any limits on data collection.

Performance Impact

The default configuration for this integration is not expected to impose a significant performance impact on the system.

Metrics

Metrics grouped by scope.

The scope defines the instance that the metric belongs to. An instance is uniquely identified by a set of labels.

Per Docker Hub repository instance

These metrics refer to the entire monitored application.

This scope has no labels.

Metrics:

Metric	Dimensions	Unit
dockerhub.pulls_sum	sum	pulls
dockerhub.pulls	a dimension per repository	pulls
dockerhub.pulls_rate	a dimension per repository	pulls/s
dockerhub.stars	a dimension per repository	stars
dockerhub.status	a dimension per repository	status
dockerhub.last_updated	a dimension per repository	seconds

Alerts

There are no alerts configured by default for this integration.

Setup

Prerequisites

No action required.

Configuration

File

The configuration file name for this integration is go.d/dockerhub.conf.

You can edit the configuration file using the edit-config script from the Netdata config directory.

cd /etc/netdata 2>/dev/null || cd /opt/netdata/etc/netdata
sudo ./edit-config go.d/dockerhub.conf

Options

The following options can be defined globally: update_every, autodetection_retry.

Config options

Name	Description	Default	Required
update_every	Data collection frequency.		False
autodetection_retry	Recheck interval in seconds. Zero means no recheck will be scheduled.		False
url	DockerHub URL.		True
repositories	List of repositories to monitor.		True
timeout	HTTP request timeout.		False
username	Username for basic HTTP authentication.		False
password	Password for basic HTTP authentication.		False
proxy_url	Proxy URL.		False
proxy_username	Username for proxy basic HTTP authentication.		False
proxy_password	Password for proxy basic HTTP authentication.		False
method	HTTP request method.		False
body	HTTP request body.		False
headers	HTTP request headers.		False
not_follow_redirects	Redirect handling policy. Controls whether the client follows redirects.		False
tls_skip_verify	Server certificate chain and hostname validation policy. Controls whether the client performs this check.		False
tls_ca	Certification authority that the client uses when verifying the server's certificates.		False
tls_cert	Client TLS certificate.		False
tls_key	Client TLS key.		False

Examples

Basic

A basic example configuration.

jobs:
  - name: dockerhub
    repositories:
      - 'user1/name1'
      - 'user2/name2'
      - 'user3/name3'

Troubleshooting

Debug Mode

To troubleshoot issues with the dockerhub collector, run the go.d.plugin with the debug option enabled. The output should give you clues as to why the collector isn't working.

• Navigate to the plugins.d directory, usually at /usr/libexec/netdata/plugins.d/. If that's not the case on your system, open netdata.conf and look for the plugins setting under [directories].

  cd /usr/libexec/netdata/plugins.d/

• Switch to the netdata user.

  sudo -u netdata -s

• Run the go.d.plugin to debug the collector:

  ./go.d.plugin -d -m dockerhub