A prometheus exporter which helps you with monitoring your Docker Hub rate limits. This is based on Michael Friedrich's docker-hub-limit-exporter (https://gitlab.com/gitlab-com/marketing/corporate_marketing/developer-evangelism/code/docker-hub-limit-exporter), it's basically a Go rewrite of the original Python program.
Either build it with go build with your local go installation or build it with docker docker build -t dockerhub-limit-exporter-go
It can be configured via the environment variables
- DOCKERHUB_USERNAME
- DOCKERHUB_PASSWORD
- DOCKERHUB_EXPORTER_PORT which should be pretty much self-explanatory.
If no username or password is given, anonymous pulls are used. The default port is 8881
Currently there are two metrics: dockerhub_limit_max_requests_total which gives you the max number of allowed requests and dockerhub_limit_remaining_requests_total, which gives the currently remaining number of available requests.
I built the docker image of the aforementioned Python based exporter and found its size at around 900 MB a little hefty. Since I wanted to do a little bit of Go programming anyways, I decided to do a quick rewrite.